W912QR24R0003_Specs_Vol2-0000.pdf

Solicitation For Collective Training Officers Quarters, Ft. McCoy, WI

P2: 501939 (West)/510301 (East)

Design-Bid-Build

Specifications - Vol. 2 of 3 (DIV 04 - 23) Certified Final Design

05 March 2024

W912QR24R0003

ARIMS: 200A Disposition: Maintain for 15yrs after construction.

W912QR24R0003_Specs_Vol2-0000

P2 501939 & P2 510301 COLLECTIVE TRAINING OFFICERS QUARTERS

Fort McCoy, WI

PROJECT TABLE OF CONTENTS

DIVISION 00 - PROCUREMENT AND CONTRACTING REQUIREMENTS

00 80 00.00 06 04/21 SPECIAL PROVISIONS

DIVISION 01 - GENERAL REQUIREMENTS

01 32 01.00 06 07/18 PROJECT SCHEDULE

01 33 00 08/18 SUBMITTAL PROCEDURES

01 33 29.00 06 11/17 SUSTAINABILITY REPORTING

01 35 26.00 06 GOVERNMENT SAFETY REQUIREMENTS

01 42 00 02/19 SOURCES FOR REFERENCE PUBLICATIONS

01 45 00.15 10 11/16, CHG 2: 08/19 RESIDENT MANAGEMENT SYSTEM CONTRACTOR

MODE (RMS CM)

01 45 04.10 06 CONTRACTOR QUALITY CONTROL

01 45 35 11/20 SPECIAL INSPECTIONS

01 46 00.00 06 04/20 TOTAL BUILDING COMMISSIONING

01 50 00 11/20 TEMPORARY CONSTRUCTION FACILITIES AND

CONTROLS

01 57 19.00 06 04/20 TEMPORARY ENVIRONMENTAL CONTROLS AND

PERMITS

01 74 19 02/19, CHG 1: 08/20 CONSTRUCTION WASTE MANAGEMENT AND

DISPOSAL

01 78 23 08/15, CHG 1: 11/20 OPERATION AND MAINTENANCE DATA

DIVISION 02 - EXISTING CONDITIONS

02 41 00 08/22 DEMOLITION

02 43 00 05/10, CHG 2: 02/19 STRUCTURES MOVING AND ASSOCIATED

DEMOLITION

DIVISION 03 - CONCRETE

03 30 00 02/19, CHG 3: 11/21 CAST-IN-PLACE CONCRETE

DIVISION 04 - MASONRY

04 20 00 11/15, CHG 2: 05/19 UNIT MASONRY

DIVISION 05 - METALS

05 05 23.16 08/18 STRUCTURAL WELDING

05 12 00 08/18, CHG 2: 05/21 STRUCTURAL STEEL

05 21 00 05/15, CHG 1: 08/18 STEEL JOIST FRAMING

05 30 00 05/15, CHG 2: 08/18 STEEL DECKS

05 40 00 05/15, CHG 1: 08/18 COLD-FORMED METAL FRAMING

05 50 13 05/17, CHG 1: 08/18 MISCELLANEOUS METAL FABRICATIONS

05 51 00 02/17 METAL STAIRS

05 51 33 02/16, CHG 2: 02/18 METAL LADDERS

05 52 00 02/18 METAL RAILINGS

DIVISION 06 - WOOD, PLASTICS, AND COMPOSITES

06 10 00 08/16, CHG 2: 11/18 ROUGH CARPENTRY

06 41 16.00 10 08/10, CHG 1: 11/18 PLASTIC-LAMINATE-CLAD ARCHITECTURAL

CABINETS

06 61 16 08/20 SOLID SURFACING FABRICATIONS

PROJECT TABLE OF CONTENTS Page 1

CERTIFIED FINAL

TABLE OF CONTENTS VOLUME 1 OF 3

TABLE OF CONTENTS VOLUME 2 OF 3

DIVISION 07 - THERMAL AND MOISTURE PROTECTION

07 05 23 08/19 PRESSURE TESTING AN AIR BARRIER SYSTEM

FOR AIR TIGHTNESS

07 13 53 02/16, CHG 1: 08/17 ELASTOMERIC SHEET WATERPROOFING

07 21 13 02/16, CHG 2: 08/20 BOARD AND BLOCK INSULATION

07 21 16 11/11 SOUND INSULATION

07 27 10.00 10 08/19, CHG 1: 02/20 BUILDING AIR BARRIER SYSTEM

07 27 19.01 05/17, CHG 2: 08/20 SELF-ADHERING AIR BARRIERS

07 27 26 05/17, CHG 2: 08/20 FLUID-APPLIED MEMBRANE AIR BARRIERS

07 27 36 05/17, CHG 2: 08/20 SPRAY FOAM INSULATION

07 60 00 05/17, CHG 2: 11/18 FLASHING AND SHEET METAL

07 61 14.00 20 08/16, CHG 1: 08/18 STEEL STANDING SEAM ROOFING

07 84 00 05/10, CHG 1: 08/13 FIRESTOPPING

07 92 00 08/16, CHG 3: 11/18 JOINT SEALANTS

DIVISION 08 - OPENINGS

08 11 13 08/20 STEEL DOORS AND FRAMES

08 11 16 05/17, CHG 2: 11/18 ALUMINUM DOORS AND FRAMES

08 31 00 05/17, CHG 1: 08/18 ACCESS DOORS AND PANELS

08 51 13 05/19 ALUMINUM WINDOWS

08 71 00 02/16, CHG 3: 08/20 DOOR HARDWARE

08 81 00 05/19 GLAZING

08 91 00 08/20 METAL WALL LOUVERS

DIVISION 09 - FINISHES

09 22 00 02/10, CHG 2: 08/18 SUPPORTS FOR PLASTER AND GYPSUM BOARD

09 29 00 08/16, CHG 4: 02/20 GYPSUM BOARD

09 30 10 08/20 CERAMIC, QUARRY, AND GLASS TILING

09 51 00 08/20 ACOUSTICAL CEILINGS

09 62 38 08/17, CHG 1: 08/18 STATIC-CONTROL FLOORING

09 65 00 08/10, CHG 3: 08/18 RESILIENT FLOORING

09 90 00 02/21 PAINTS AND COATINGS

DIVISION 10 - SPECIALTIES

10 11 00 08/20 VISUAL DISPLAY UNITS

10 14 00.20 08/20 INTERIOR SIGNAGE

10 26 00 08/20 WALL AND DOOR PROTECTION

10 28 00.00 48 04/06 TOILET AND BATH ACCESSORIES

DIVISION 12 - FURNISHINGS

12 21 00 08/17, CHG 2: 11/18 WINDOW BLINDS

DIVISION 14 - CONVEYING EQUIPMENT

14 24 23 05/16 HYDRAULIC PASSENGER ELEVATORS

DIVISION 21 - FIRE SUPPRESSION

21 12 00 05/11 STANDPIPE SYSTEMS

21 13 13 08/20 WET PIPE SPRINKLER SYSTEMS, FIRE

PROTECTION

DIVISION 22 - PLUMBING

PROJECT TABLE OF CONTENTS Page 2

CERTIFIED FINAL

22 00 00 11/15, CHG 4: 05/21 PLUMBING, GENERAL PURPOSE

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

23 05 93.00 06 08/16 TESTING, ADJUSTING, AND BALANCING

(TAB) OF HVAC

23 07 00 02/13, CHG 7: 05/20 THERMAL INSULATION FOR MECHANICAL

SYSTEMS

23 09 00 02/19 INSTRUMENTATION AND CONTROL FOR HVAC

23 09 13 11/15 INSTRUMENTATION AND CONTROL DEVICES

FOR HVAC

23 09 23.02 02/19 BACNET DIRECT DIGITAL CONTROL FOR HVAC

AND OTHER BUILDING CONTROL SYSTEMS

23 11 25 11/08 FACILITY GAS PIPING

23 23 00 08/21 REFRIGERANT PIPING

23 30 00 05/20 HVAC AIR DISTRIBUTION

23 52 00 04/08, CHG 5: 11/19 HEATING BOILERS

23 64 10 11/16, CHG 2: 08/18 WATER CHILLERS, VAPOR COMPRESSION TYPE

23 64 26 08/09, CHG 5: 11/19 CHILLED, CHILLED-HOT, AND CONDENSER

WATER PIPING SYSTEMS

23 81 00 05/18, CHG 1: 02/21 DECENTRALIZED UNITARY HVAC EQUIPMENT

DIVISION 25 - INTEGRATED AUTOMATION

25 05 11.01 05/21 CYBERSECURITY FOR FACILITY-RELATED

CONTROL SYSTEMS - FIRE ALARM

25 05 11.02 05/21 CYBERSECURITY FOR FACILITY-RELATED

CONTROL SYSTEMS - HVAC

DIVISION 26 - ELECTRICAL

26 08 00 11/21 APPARATUS INSPECTION AND TESTING

26 20 00 08/19, CHG 3: 11/21 INTERIOR DISTRIBUTION SYSTEM

26 24 13 08/21 SWITCHBOARDS

26 28 01.00 10 08/21 COORDINATED POWER SYSTEM PROTECTION

26 29 23 02/20, CHG 1: 05/21 ADJUSTABLE SPEED DRIVE (ASD) SYSTEMS

UNDER 600 VOLTS

26 41 00 11/13 LIGHTNING PROTECTION SYSTEM

26 51 00 05/20, CHG 2: 11/21 INTERIOR LIGHTING

26 56 00 08/21 EXTERIOR LIGHTING

DIVISION 27 - COMMUNICATIONS

27 05 14.00 10 04/06 CABLE TELEVISION PREMISES DISTRIBUTION

SYSTEM

27 05 28.36 48 04/20 CABLE TRAYS FOR COMMUNICATIONS SYSTEMS

27 10 00.00 48 10/20 BUILDING TELECOMMUNICATIONS CABLING

SYSTEM

DIVISION 28 - ELECTRONIC SAFETY AND SECURITY

28 31 76 08/20 INTERIOR FIRE ALARM AND MASS

NOTIFICATION SYSTEM, ADDRESSABLE

DIVISION 31 - EARTHWORK

31 00 00.00 06 07/18 EARTHWORK

31 05 19.13 02/21 GEOTEXTILES FOR EARTHWORK

PROJECT TABLE OF CONTENTS Page 3

CERTIFIED FINAL

TABLE OF CONTENTS VOLUME 3 OF 3

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 01 19.61 11/19 SEALING OF JOINTS IN RIGID PAVEMENT

32 11 23 05/22 AGGREGATE BASE COURSE

32 11 23.23 08/22 BASE COURSE DRAINAGE LAYERS

32 13 13.06 06 06/18 PORTLAND CEMENT CONCRETE PAVEMENT FOR

ROADS AND SITE FACILITIES

32 15 00 05/17 AGGREGATE SURFACING

32 16 19 05/18 CONCRETE CURBS, GUTTERS AND SIDEWALKS

32 17 23 08/16, CHG 5: 11/18 PAVEMENT MARKINGS

32 31 26 11/21 WIRE FENCES AND GATES

32 92 19 08/17, CHG 1: 08/21 SEEDING

DIVISION 33 - UTILITIES

33 05 23.13 11/19 UTILITY HORIZONTAL DIRECTIONAL DRILLING

33 11 00 02/18, CHG 1: 02/22 WATER UTILITY DISTRIBUTION PIPING

33 30 00 05/18 SANITARY SEWERAGE

33 40 00 11/21 STORMWATER UTILITIES

33 46 16 05/18 SUBDRAINAGE PIPING

33 71 02 02/15 UNDERGROUND ELECTRICAL DISTRIBUTION

33 82 00.00 48 04/20 TELECOMMUNICATIONS OUTSIDE PLANT (OSP)

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 4

SECTION TABLE OF CONTENTS

DIVISION 04 - MASONRY

SECTION 04 20 00

UNIT MASONRY

11/15, CHG 2: 05/19

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 QUALITY ASSURANCE

1.3.1 Masonry Mock-Up Panels

1.3.1.1 Mock-Up Panel Location

1.3.1.2 Mock-Up Panel Configuration

1.3.1.3 Mock-Up Panel Composition

1.3.1.4 Mock-Up Panel Construction Method

1.3.1.5 Mock-Up Panel Purpose

1.3.2 Special Masonry Inspector Qualifications

1.4 DELIVERY, STORAGE, AND HANDLING

1.4.1 Masonry Units

1.4.2 Reinforcement, Anchors, and Ties

1.4.3 Cementitious Materials, Sand and Aggregates

1.5 PROJECT/SITE CONDITIONS

1.5.1 Hot Weather Procedures

1.5.2 Cold Weather Procedures

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

2.1.1 Design - Specified Compressive Strength of Masonry

2.1.2 Performance - Verify Masonry Compressive Strength

2.2 MANUFACTURED UNITS

2.2.1 General Requirements

2.2.2 Clay or Shale Brick

2.2.2.1 General

2.2.2.1.1 Sample Submittal

2.2.2.1.2 Uniformity

2.2.2.1.3 Recycled Content

2.2.2.1.4 Efflorescence Test

2.2.2.2 Solid Brick

2.2.3 DIMENSION STONE UNITS

2.3 EQUIPMENT

2.3.1 Vibrators

2.3.2 Grout Pumps

2.4 MATERIALS

2.4.1 Mortar Materials

2.4.1.1 Cementitious Materials

2.4.1.2 Hydrated Lime and Alternates

2.4.1.3 Colored Mortar

2.4.1.4 Admixtures for Masonry Mortar

2.4.1.5 Aggregate and Water

2.4.2 Grout and Ready-Mix Grout Materials

SECTION 04 20 00 Page 1

2.4.2.1 Cementitious Materials for Grout

2.4.2.2 Admixtures for Grout

2.4.2.3 Aggregate and Water

2.5 MORTAR AND GROUT MIXES

2.5.1 Mortar Mix

2.5.2 Grout and Ready Mix Grout Mix

2.6 ACCESSORIES

2.6.1 Grout Barriers

2.6.2 Anchors, Ties, and Bar Positioners

2.6.2.1 General

2.6.2.2 Wire Mesh Anchors

2.6.2.3 Adjustable Anchors

2.6.2.3.1 Anchorage to Structural Steel

2.6.2.3.2 Anchorage of Veneer to Light Gauge Steel or Concrete

Backing

2.6.2.4 Veneer Anchor Screws

2.6.2.5 Bar Positioners

2.6.3 Joint Reinforcement

2.6.4 Reinforcing Steel Bars

2.6.5 Concrete Masonry Control Joint Keys

2.6.6 Clay Masonry Expansion-Joint Materials

2.6.7 Through Wall Flashing and Weeps

2.6.7.1 General

2.6.7.2 Coated-Copper Flashing

2.6.7.3 Copper or Stainless Steel Flashing

2.6.7.4 Rubberized Flashing

2.6.7.5 Weep Ventilators

2.6.7.6 Metal Drip Edge

2.6.8 RIGID BOARD-TYPE INSULATION

PART 3 EXECUTION

3.1 EXAMINATION

3.2 PREPARATION

3.2.1 Stains

3.2.2 Loads

3.2.3 Concrete Surfaces

3.2.4 Shelf Angles

3.2.5 Bracing

3.3 ERECTION

3.3.1 General

3.3.1.1 Jointing

3.3.1.1.1 Tooled Joints

3.3.1.1.2 Flush Joints

3.3.1.1.3 Door and Window Frame Joints

3.3.1.1.4 Joint Widths

3.3.1.2 Cutting and Fitting

3.3.1.3 Unfinished Work

3.3.1.4 Clay Masonry Expansion Joints

3.3.1.5 Control Joints

3.3.1.6 Decorative Architectural Units

3.3.2 Clay or Shale Brick Masonry

3.3.2.1 Brick Placement

3.3.2.2 Wetting of Units

3.3.2.3 Brick Sills

3.3.3 Anchored Veneer Construction

3.3.4 Composite Walls

3.3.5 ANCHORAGE

3.3.5.1 Anchorage to Concrete

SECTION 04 20 00 Page 2

3.3.5.2 Anchorage to Structural Steel

3.3.6 Lintels

3.3.6.1 Masonry Lintels

3.3.6.2 Steel Lintels

3.3.7 Sills and Copings

3.4 INSTALLATION

3.4.1 Bar Reinforcement Installation

3.4.1.1 Preparation

3.4.1.2 Positioning Bars

3.4.1.3 Splices of Bar Reinforcement

3.4.2 Placing Grout

3.4.2.1 General

3.4.2.2 Vertical Grout Barriers for Multi-Wythe Composite Walls

3.4.2.3 Horizontal Grout Barriers

3.4.2.4 Grout Holes and Cleanouts

3.4.2.4.1 Grout Holes

3.4.2.4.2 Cleanouts for Hollow Unit Masonry Construction

3.4.2.5 Grout Placement

3.4.3 Joint Reinforcement Installation

3.4.4 Bond Beams

3.4.5 Flashing and Weeps

3.5 APPLICATION

3.5.1 Interface with Other Products

3.5.1.1 Built-In Items

3.5.1.2 Door and Window Frame Joints

3.5.1.3 Bearing Plates

3.5.2 Tolerances

3.6 FIELD QUALITY CONTROL

3.6.1 Tests

3.6.1.1 Field Testing of Mortar

3.6.1.2 Field Testing of Grout

3.6.1.3 Single-Wythe Masonry Wall Water Penetration Test

3.6.2 Special Inspection

3.7 POINTING AND CLEANING

3.7.1 Dry-Brushing Concrete Masonry

3.7.2 Clay Brick Surfaces

3.8 CLOSE-OUT TAKE-BACK PROGRAM

3.9 PROTECTION

-- End of Section Table of Contents --

SECTION 04 20 00 Page 3

SECTION 04 20 00

UNIT MASONRY

11/15, CHG 2: 05/19

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN CONCRETE INSTITUTE (ACI)

ACI SP-66 (2004) ACI Detailing Manual

ASTM INTERNATIONAL (ASTM)

ASTM A153/A153M (2016a) Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

ASTM A167 (2011) Standard Specification for Stainless and Heat-Resisting Chromium-Nickel Steel Plate, Sheet, and Strip

ASTM A185/A185M (2007) Standard Specification for Steel Welded Wire Reinforcement, Plain, for Concrete

ASTM A615/A615M (2020) Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

ASTM A641/A641M (2019) Standard Specification for Zinc-Coated (Galvanized) Carbon Steel Wire

ASTM A653/A653M (2020) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM A951/A951M (2011) Standard Specification for Steel Wire for Masonry Joint Reinforcement

ASTM A996/A996M (2016) Standard Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete Reinforcement

ASTM A1008/A1008M (2021) Standard Specification for Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable

SECTION 04 20 00 Page 4

ASTM A1064/A1064M (2017) Standard Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete

ASTM B370 (2012; R 2019) Standard Specification for Copper Sheet and Strip for Building Construction

ASTM C67/C67M (2021) Standard Test Methods for Sampling and Testing Brick and Structural Clay Tile

ASTM C207 (2018) Standard Specification for Hydrated Lime for Masonry Purposes

ASTM C216 (2021) Standard Specification for Facing Brick (Solid Masonry Units Made from Clay or Shale)

ASTM C270 (2019a; E 2019) Standard Specification for Mortar for Unit Masonry

ASTM C476 (2020) Standard Specification for Grout for Masonry

ASTM C494/C494M (2019) Standard Specification for Chemical Admixtures for Concrete

ASTM C586 (2011) Standard Test Method for Potential Alkali Reactivity of Carbonate Rocks as Concrete Aggregates (Rock-Cylinder Method)

ASTM C616/C615M (2011) Standard Specification for Granite Dimension Stone

ASTM C616/C616M (2010) Standard Specification for Quartz-Based Dimension Stone

ASTM C780 (2020) Standard Test Method for Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry

ASTM C979/C979M (2016) Standard Specification for Pigments for Integrally Colored Concrete

ASTM C1019 (2019) Standard Test Method for Sampling and Testing Grout

ASTM C1384 (2012a) Standard Specification for Admixtures for Masonry Mortars

ASTM C1611/C1611M (2021) Standard Test Method for Slump Flow of Self-Consolidating Concrete

ASTM D2000 (2018) Standard Classification System for Rubber Products in Automotive Applications

SECTION 04 20 00 Page 5

ASTM D2287 (2019) Nonrigid Vinyl Chloride Polymer and Copolymer Molding and Extrusion Compounds

ASTM E514/E514M (2020) Standard Test Method for Water Penetration and Leakage Through Masonry

THE MASONRY SOCIETY (TMS)

TMS MSJC (2016) Masonry Standard Joint Committee's (MSJC) Book - Building Code Requirements and Specification for Masonry Structures, Containing TMS 402/ACI 530/ASCE 5, TMS 602/ACI 530.1/ASCE 6, and Companion Commentaries

1.2 SUBMITTALS

Government approval is required for submittals with a "G" classification.

Submittals not having a "G" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government. Submittals with an "S" are for inclusion in the Sustainability eNotebook, in conformance with 01 33 29.00 06 SUSTAINABILITY REPORTING. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Reinforcement Detail Drawings; G , AE

SD-03 Product Data

Hot Weather Procedures; G

Cold Weather Procedures; G

Brick; G , AE

Cement; G

Cementitious Materials; G

Insulation; G

SD-04 Samples

Mock-Up Panel; G

Brick; G , AE

Admixtures for Masonry Mortar; G

Anchors, Ties, and Bar Positioners; G

Joint Reinforcement; G

Clay Masonry Expansion-Joint Materials; G

Insulation; G

SECTION 04 20 00 Page 6

SD-05 Design Data

Masonry Compressive Strength; G

Bracing Calculations; G

SD-06 Test Reports

Efflorescence Test

Field Testing of Mortar

Field Testing of Grout

Prism Tests

SD-07 Certificates

Special Masonry Inspector Qualifications

Brick

Cementitious Materials

Admixtures for Masonry Mortar

Admixtures for Grout

Anchors, Ties, and Bar Positioners

Joint Reinforcement

SD-08 Manufacturer's Instructions

Admixtures for Masonry Mortar

Admixtures for Grout

SD-10 Operation and Maintenance Data

Take-Back Program

SD-11 Closeout Submittals

Recycled Content of Clay Units; S

Recycled Content of Cement; S

1.3 QUALITY ASSURANCE

1.3.1 Masonry Mock-Up Panels

1.3.1.1 Mock-Up Panel Location

After material samples are approved and prior to starting masonry work, construct a mock-up panel for each type and color of masonry required. At least 48 hours prior to constructing the panel or panels, submit written notification to the Contracting Officer. Do not build-in mock-up panels

SECTION 04 20 00 Page 7 as part of the structure; locate mock-up panels where directed. Construct portable mock-up panels or locate in an area where they will not be disrupted during construction.

1.3.1.2 Mock-Up Panel Configuration

Construct mock-up panels L-shaped or otherwise configured to represent all of the wall elements. Construct panels of the size necessary to demonstrate the acceptable level of workmanship for each type of masonry represented on the project. Provide a straight panel or a leg of an L-shaped panel of minimum size 8 feet long by 4 feet high.

1.3.1.3 Mock-Up Panel Composition

Show full color range, texture, and bond pattern of the masonry work.

Demonstrate mortar joint tooling; grouting of reinforced vertical cores, collar joints, bond beams, and lintels; positioning, securing, and lapping of reinforcing steel; positioning and lapping of joint reinforcement (including prefabricated corners); and cleaning of masonry work during the construction of the panels. Also include installation or application procedures for anchors, wall ties, brick expansion joints, insulation, flashing, brick soldier, row lock courses and weeps . Include installation of electrical boxes and conduit. When the panel represents reinforced masonry, include a 2 by 2 foot opening placed at least 2 feet above the panel base and 2 feet away from all free edges, corners, and control joints. Provide required reinforcing around this opening as well as at wall corners and control joints.

1.3.1.4 Mock-Up Panel Construction Method

Where anchored veneer walls or cavity walls are required, demonstrate and receive approval for the method of construction; i.e., either bring up the two wythes together or separately, with the insulation and appropriate ties placed within the specified tolerances across the cavity.

Demonstrate provisions to preclude mortar or grout droppings in the cavity and to provide a clear open air space of the dimensions shown on the drawings. Where masonry is to be grouted, demonstrate and receive approval on the method that will be used to bring up the masonry wythes;

support the reinforcing bars; and grout cells, bond beams, lintels, and collar joints using the requirements specified herein. When water-repellent is specified to be applied to the masonry, apply the approved product to the mock-up panel. Construct panels on a properly designed concrete foundation.

1.3.1.5 Mock-Up Panel Purpose

The completed panels is used as the standard of workmanship for the type of masonry represented. Do not commence masonry work until the mock-up panel for that type of masonry construction has been completed and approved. Protect panels from the weather and construction operations until the masonry work has been completed and approved. Perform cleaning procedures on the mockup and obtain approval of the Contracting Officer prior to cleaning the building. After completion of the work, completely remove the mock-up panels, including all foundation concrete, from the construction site.

1.3.2 Special Masonry Inspector Qualifications

Refer to Section 01 45 35 SPECIAL INSPECTIONS for qualifications and

SECTION 04 20 00 Page 8 responsibilities of the masonry special inspector.

1.4 DELIVERY, STORAGE, AND HANDLING

Deliver, store, handle, and protect material to avoid chipping, breakage, and contact with soil or contaminating material. Store and prepare materials in already disturbed areas to minimize project site disturbance and size of project site.

1.4.1 Masonry Units

Cover and protect masonry units from precipitation. Conform to handling and storage requirements of TMS MSJC.

a. Mark prefabricated lintels on top sides to show either the lintel schedule number or the number and size of top and bottom bars.

1.4.2 Reinforcement, Anchors, and Ties

Store steel reinforcing bars, coated anchors, ties, and joint reinforcement above the ground. Maintain steel reinforcing bars and uncoated ties free of loose mill scale and loose rust.

1.4.3 Cementitious Materials, Sand and Aggregates

Deliver cementitious and other packaged materials in unopened containers, plainly marked and labeled with manufacturers' names and brands. Store cementitious material in dry, weathertight enclosures or completely cover. Handle cementitious materials in a manner that will prevent the inclusion of foreign materials and damage by water or dampness. Store sand and aggregates in a manner to prevent contamination and segregation.

1.5 PROJECT/SITE CONDITIONS

Conform to TMS MSJC for hot and cold weather masonry erection.

1.5.1 Hot Weather Procedures

When ambient air temperature exceeds 100 degrees F, or exceeds 90 degrees F and the wind velocity is greater than 8 mph, comply with TMS MSJC Article

1.8 D for: preparation prior to conducting masonry work; construction while masonry work is in progress; and protection for newly completed masonry.

1.5.2 Cold Weather Procedures

When ambient temperature is below 40 degrees F, comply with TMS MSJC Article 1.8 C for: preparation prior to conducting masonry work;

construction while masonry work is in progress; and protection for newly completed masonry.

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

2.1.1 Design - Specified Compressive Strength of Masonry

The specified compressive strength of masonry, f'm, is as indicated for each type of masonry.

SECTION 04 20 00 Page 9

2.1.2 Performance - Verify Masonry Compressive Strength

Verify specified compressive strength of masonry using the "Unit Strength Method" of TMS MSJC. Submit calculations and certifications of unit and mortar strength.

Verify specified compressive strength of masonry using the "Prism Test Method" of TMS MSJC when the "Unit Strength Method" cannot be used.

Submit test results.

2.2 MANUFACTURED UNITS

2.2.1 General Requirements

Do not change the source of materials, which will affect the appearance of the finished work, after the work has started except with Contracting Officer's approval. Submit test reports from an approved independent laboratory. Certify test reports on a previously tested material as the same materials as that proposed for use in this project. Submit certificates of compliance stating that the materials meet the specified requirements.

2.2.2 Clay or Shale Brick

2.2.2.1 General

2.2.2.1.1 Sample Submittal

Submit brick samples as specified, showing the color range and texture of clay or shale brick. Limit units used on the project to those that conform to the approved sample. Submit sample of colored mortar with applicable masonry unit and color samples of three stretcher units and one unit for each type of special shape.

2.2.2.1.2 Uniformity

Deliver clay or shale brick units factory-blended to provide a uniform appearance and color range in the completed wall.

2.2.2.1.3 Recycled Content

Provide clay units containing a minimum of 5 percent post-consumer recycled content, and a minimum of 20 percent post-industrial recycled content.

2.2.2.1.4 Efflorescence Test

Test clay brick that will be exposed to weathering for efflorescence in accordance with ASTM C67/C67M. Schedule tests far enough in advance of starting masonry work to permit retesting if necessary. Units meeting the definition of "effloresced" are subject to rejection.

2.2.2.2 Solid Brick

Provide solid clay or shale brick that conforms to ASTM C216, Type FBX.

Where brick cores, recesses, or deformation would be exposed to view, provide 100 percent solid units. Provide brick with texture and color as indicated.

SECTION 04 20 00 Page 10

Provide brick with specified sizes.

c. Utility size, 3-5/8 inches thick, 3-5/8 inches high, and 11-5/8 inches long.

2.2.3 DIMENSION STONE UNITS

Provide dimension stone for trim, sills, lintels, and copings cut to the design shown and conforming to:

Limestone ASTM C586 Standard buff color with a smooth machine finish free from tool marks

Sandstone ASTM C616/C616M Standard grade, buff, gray, or buff brown, with a smooth finish free from clay pits and tool marks

Granite ASTM C616/C615M Commercial grade of medium or moderately coarse grain, with a light or medium gray or light pink color

Provide a smooth machine finish on washes, 4-cut finish on treads, and 6-cut or equivalent machine finish on other exposed surfaces. Except when supported by a steel member, provide lintels 4 inches or more in thickness from face to back edge and of the depth required to support the masonry over the opening. Fabricate stone with beds and joints at right angles to the face, and with sharp, true arises. Provide copings and sills with washes, and where overhanging the walls, with drips cut on the underside.

Submit samples as specified.

2.3 EQUIPMENT

2.3.1 Vibrators

Maintain at least one spare vibrator on site at all times.

2.3.2 Grout Pumps

Pumping through aluminum tubes is not permitted.

2.4 MATERIALS

2.4.1 Mortar Materials

2.4.1.1 Cementitious Materials

Provide cementitious materials that conform to those permitted by ASTM C270.

2.4.1.2 Hydrated Lime and Alternates

Provide lime that conforms to one of the materials permitted by ASTM C207 for use in combination with portland cement, hydraulic cement, and blended hydraulic cement. Do not use lime in combination with masonry cement or mortar cement.

SECTION 04 20 00 Page 11

2.4.1.3 Colored Mortar

Use mortar pigment that conforms to ASTM C979/C979M. Add pigment to mortar to produce a uniform color as indicated. Furnish pigments in accurately pre-measured and packaged units that can be added to a measured amount of cementitious materials or supply pigments via preblended cementitious materials or dry mortar mix.

a. In masonry cement or mortar cement, do not exceed 5 percent of cement weight for mineral oxide pigment; do not exceed 1 percent of cement weight for carbon black pigment.

b. In cement-lime mortar mix, do not exceed 10 percent of cementitious materials' weight for mineral oxide pigment; do not exceed 2 percent of cementitious materials' weight for carbon black pigment.

2.4.1.4 Admixtures for Masonry Mortar

In cold weather, use a non-chloride based accelerating admixture that conforms to ASTM C1384, unless Type III portland cement is used in the mortar.

In showers and kitchens, use mortar that contains a water-repellent admixture that conforms to ASTM C1384. Provide a water-repellent admixture, conforming to ASTM C1384 and of the same brand and manufacturer as the block's integral water-repellent, in the mortar used to place concrete masonry units that have an integral water-repellent admixture.

2.4.1.5 Aggregate and Water

Provide aggregate (sand) and water that conform to materials permitted by

ASTM C270.

2.4.2 Grout and Ready-Mix Grout Materials

2.4.2.1 Cementitious Materials for Grout

Provide cementitious materials that conform to those permitted by ASTM C476.

2.4.2.2 Admixtures for Grout

Water-reducing admixtures that conform to ASTM C494/C494M Type F or G and viscosity-modifying admixtures that conform to ASTM C494/C494M Type S are permitted for use in grout. Other admixtures require approval by the Contracting Officer.

In cold weather, a non-chloride based accelerating admixture may be used subject to approval by the Contracting Officer; use accelerating admixture that is non-corrosive and conforms to ASTM C494/C494M, Type C.

2.4.2.3 Aggregate and Water

Provide fine and coarse aggregates and water that conform to materials permitted by ASTM C476.

SECTION 04 20 00 Page 12

2.5 MORTAR AND GROUT MIXES

2.5.1 Mortar Mix

a. Provide mortar Type N unless specified otherwise herein.

b. For field-batched mortar, measure component materials by volume. Use measuring boxes for materials that do not come in packages, such as sand, for consistent batching. Mix cementitious materials and aggregates between 3 and 5 minutes in a mechanical batch mixer with a sufficient amount of water to produce a workable consistency. Do not hand mix mortar unless approved by the Contracting Officer. Maintain workability of mortar by remixing or retempering. Discard mortar that has begun to stiffen or is not used within 2-1/2 hours after initial mixing.

c. For preblended mortar, follow manufacturer's mixing instructions.

2.5.2 Grout and Ready Mix Grout Mix

Use grout that conforms to ASTM C476, fine. Use conventional grout with a slump between 8 and 11 inches. Use self-consolidating grout with slump flow of 24 to 30 inches and a visual stability index (VSI) not greater than 1. Provide minimum grout strength of 2000 psi in 28 days, as tested in accordance with ASTM C1019. Do not change proportions and do not use materials with different physical or chemical characteristics in grout for the work unless additional evidence is furnished that grout meets the specified requirements. Use ready-mixed grout that conforms to ASTM C476.

2.6 ACCESSORIES

2.6.1 Grout Barriers

Grout barriers for vertical cores that consist of fine mesh wire, fiberglass, or expanded metal.

2.6.2 Anchors, Ties, and Bar Positioners

2.6.2.1 General

a. Fabricate anchors and ties without drips or crimps. Size anchors and ties to provide a minimum of 5/8 inch mortar cover from each face of masonry.

b. Fabricate steel wire anchors and ties shall from wire conforming to ASTM A1064/A1064M and hot-dip galvanize in accordance with

ASTM A153/A153M .

c. Fabricate joint reinforcement in conformance with ASTM A951/A951M .

Hot dip galvanize joint reinforcement in exterior walls and in interior walls exposed to moist environment in conformance with ASTM A153/A153M . Galvanize joint reinforcement in other interior walls in conformance with ASTM A641/A641M ; coordinate with paragraph JOINT REINFORCEMENT below.

d. Fabricate sheet metal anchors and ties in conformance with ASTM A1008/A1008M . Hot dip galvanize sheet metal anchors and ties in exterior walls and in interior walls exposed to moist environment in compliance with ASTM A153/A153M Class B. Galvanize sheet metal

SECTION 04 20 00 Page 13 anchors and ties in other interior walls in compliance with ASTM A653/A653M , Coating Designation G60.

e. Submit two anchors, ties and bar positioners of each type used, as samples.

2.6.2.2 Wire Mesh Anchors

Provide wire mesh anchors of 1/4 inch mesh galvanized hardware cloth, conforming to ASTM A185/A185M , with length not less than 12 inches, at intersections of interior non-bearing masonry walls.

2.6.2.3 Adjustable Anchors

2.6.2.3.1 Anchorage to Structural Steel

Provide hot-dip galvanized adjustable anchors for connecting masonry walls to the structural steel frame as detailed on the drawings. Provide zinc-rich paint for touching up paint after welding galvanized anchors to structural steel.

2.6.2.3.2 Anchorage of Veneer to Light Gauge Steel or Concrete Backing

Use one of the following types of adjustable anchors to connect veneer to light gauge steel or concrete backing:

a. sheet metal at least 7/8 inch wide, 0.06 inch thick, and with corrugations having a wavelength of 0.3 to 0.5 inch and an amplitude of

0.06 to 0.10 inch or bent, notched or punched to provide equivalent performance;

b. wire anchors of minimum size W1.7 with ends bent to form a minimum 2 inches extension and without drips;

c. or wire pintle anchors used in conjunction with joint reinforcement.

Do not exceed 1/16 inch clearance between connecting parts of the tie.

Assemble adjustable anchors to prevent disengagement. Provide pintle anchors with one or more pintle legs of wire size W2.8 and an offset not exceeding 1-1/4 inch.

2.6.2.4 Veneer Anchor Screws

Provide screws for attachment of veneer anchors to cold-formed steel framing members of size as required by design to provide the needed pullout load capacity but not less than No. 12. Provide length of screws such that the screws penetrate the holding member by not less than 5/8 inch.

2.6.2.5 Bar Positioners

Factory-fabricate bar positioners, used to prevent displacement of reinforcing bars during the course of construction, from 9 gauge steel wire or equivalent, and hot-dip galvanized. Bar positioners must be suitable for intended use and be corrosion resistant steel. Bar positioners not fully contained within the wythe must be hot-dip galvanized.

SECTION 04 20 00 Page 14

2.6.3 Joint Reinforcement

Factory fabricate joint reinforcement in conformance with ASTM A951/A951M , welded construction. Provide ladder type joint reinforcement, having one longitudinal wire in the mortar bed of each face shell for hollow units and one wire for solid units and with all wires a minimum of 9 gauge.

Size joint reinforcement to provide a minimum of 5/8 inch cover from each face. Space crosswires not more than 16 inches. Provide joint reinforcement for straight runs in flat sections not less than 10 feet long. Provide joint reinforcement with factory formed corners and intersections. If approved for use, joint reinforcement may be furnished with adjustable wall tie features. Submit one piece of each type used, including corner and wall intersection pieces, showing at least two cross wires.

2.6.4 Reinforcing Steel Bars

Reinforcing steel bars and rods shall conform to ASTM A615/A615M or ASTM A996/A996M , Grade 60.

2.6.5 Concrete Masonry Control Joint Keys

Provide control joint keys of a factory fabricated solid section of natural or synthetic rubber (or combination thereof) conforming to ASTM D2000 M2AA-805 with a minimum durometer hardness of 80 or polyvinyl chloride conforming to ASTM D2287 Type PVC 654-4 with a minimum durometer hardness of 85. Form the control joint key with a solid shear section not less than 5/8 inch thick and 3/8 inch thick flanges, with a tolerance of plus or minus 1/16 inch, to fit neatly, but without forcing, in masonry unit jamb sash grooves.

2.6.6 Clay Masonry Expansion-Joint Materials

Provide backer rod and sealant, adequate to accommodate joint compression and extension equal to 50 percent of the width of the joint. Provide the backer rod of compressible rod stock of closed cell polyethylene foam, polyurethane foam, butyl rubber foam, or other flexible, nonabsorptive material as recommended by the sealant manufacturer. Provide sealant in conformance with Section 07 92 00 JOINT SEALANTS.

Submit one piece of each type of material used.

2.6.7 Through Wall Flashing and Weeps

2.6.7.1 General

Provide coated copper, copper or stainless steel sheet, self-adhesive rubberized sheet, or reinforced membrane sheet flashing.

2.6.7.2 Coated-Copper Flashing

Provide 7 ounce, electrolytic copper sheet, uniformly coated on both sides with acidproof, alkaliproof, asphalt impregnated kraft paper or polyethylene sheets.

SECTION 04 20 00 Page 15

2.6.7.3 Copper or Stainless Steel Flashing

Provide copper sheet, complying with ASTM B370, minimum 16 ounce weight;

or stainless steel, ASTM A167, Type 304 or 316, 0.015 inch thick, No. 2D finish. Where indicated, provide with factory-fabricated deformations that mechanically bond flashing against horizontal movement in all directions, where deformations consist of dimples, diagonal corrugations, or a combination of dimples and transverse corrugations.

2.6.7.4 Rubberized Flashing

Provide self-adhesive rubberized asphalt sheet flashing consisting of 32-mil thick pliable and highly adhesive rubberized asphalt compound bonded completely and integrally to 8-mil thick, high density, cross-laminated polyethylene film to produce an overall thickness of 40 mils. Provide rubberized, asphalt-based mastic and surface conditioner that are each approved by flashing manufacturer for use with flashing material.

2.6.7.5 Weep Ventilators

Provide weep ventilators that are prefabricated from stainless steel or plastic. Provide inserts with grill or louver-type openings designed to allow the passage of moisture from cavities and to prevent the entrance of insects, and with a rectangular closure strip to prevent mortar droppings from clogging the opening. Provide ventilators with compressible flanges to fit in a standard 3/8 inch wide mortar joint and with height equal to the nominal height of the unit.

2.6.7.6 Metal Drip Edge

Provide stainless steel drip edge, 15-mil thick, hemmed edges, with down-turned drip at the outside edge and upturned dam at the inside edge for use with membrane flashings.

2.6.8 RIGID BOARD-TYPE INSULATION

Provide rigid board-type insulation as specified in Section 07 21 13 BOARD

AND BLOCK INSULATION.

PART 3 EXECUTION

3.1 EXAMINATION

Prior to start of work, verify the applicable conditions as set forth in TMS MSJC, inspection.

3.2 PREPARATION

3.2.1 Stains

Protect exposed surfaces from mortar and other stains. When mortar joints are tooled, remove mortar from exposed surfaces with fiber brushes and wooden paddles. Protect base of walls from splash stains by covering adjacent ground with sand, sawdust, or polyethylene.

3.2.2 Loads

Do not apply uniform loads for at least 12 hours or concentrated loads for

SECTION 04 20 00 Page 16 at least 72 hours after masonry is constructed. Provide temporary bracing as required.

3.2.3 Concrete Surfaces

Where masonry is to be placed, clean concrete of laitance, dust, dirt, oil, organic matter, or other foreign materials and slightly roughen to provide a surface texture with a depth of at least 1/8 inch. Sandblast, if necessary, to remove laitance from pores and to expose the aggregate.

3.2.4 Shelf Angles

Adjust shelf angles as required to keep the masonry level and at the proper elevation.

3.2.5 Bracing

Provide bracing and scaffolding necessary for masonry work. Design bracing to resist wind pressure as required by OSHA and local codes and submit bracing calculations, sealed by a registered professional engineer. Do not remove bracing in less than 10 days.

3.3 ERECTION

3.3.1 General

a. Coordinate masonry work with the work of other trades to accommodate built-in items and to avoid cutting and patching. Lay masonry units in the indicated bond pattern. Lay facing courses level with back-up courses, unless the use of adjustable ties has been approved in which case the tolerances is plus or minus 1/2 inch. Adjust each unit to its final position while mortar is still soft and has plastic consistency.

b. Remove and clean units that have been disturbed after the mortar has stiffened, and relay with fresh mortar. Keep air spaces, cavities, chases, expansion joints, and spaces to be grouted free from mortar and other debris. Select units to be used in exposed masonry surfaces from those having the least amount of chipped edges or other imperfections detracting from the appearance of the finished work.

c. When necessary to temporarily discontinue the work, step (rack) back the masonry for joining when work resumes. Toothing may be used only when specifically approved by the Contracting Officer. Before resuming work, remove loose mortar and thoroughly clean the exposed joint. Cover the top of walls subjected to rain or snow with nonstaining waterproof covering or membrane when work is not in process. Extend the covering a minimum of 610 mm 2 feet down on each side of the wall and hold securely in place.

d. Ensure that units being laid and surfaces to receive units are free of water film and frost. Lay solid units in a nonfurrowed full bed of mortar. Bevel mortar for veneer wythes and slope down toward the cavity side. Shove units into place so that the vertical joints are tight. Completely fill vertical joints between solid units with mortar, except where indicated at control, expansion, and isolation joints. Place hollow units so that mortar extends to the depth of the face shell at heads and beds, unless otherwise indicated. Mortar will be permitted to protrude up to 1/2 inch into the space or cells to be

SECTION 04 20 00 Page 17 grouted. Provide means to prevent mortar from dropping into the space below or clean grout spaces prior to grouting.

e. In multi-wythe construction with collar joints no more than 3/4 inch wide, bring up the inner wythe not more than 16 inches ahead of the outer wythe. Fill collar joints with mortar during the laying of the facing wythe, and filling shall not lag the laying of the facing wythe by back-buttering each unit as it is laid.

3.3.1.1 Jointing

Tool mortar joints when the mortar is thumbprint hard. Tool horizontal joints after tooling vertical joints. Brush mortar joints to remove loose and excess mortar.

3.3.1.1.1 Tooled Joints

Tool mortar joints in exposed exterior and interior masonry surfaces concave, using a jointer that is slightly larger than the joint width so that complete contact is made along the edges of the unit. Perform tooling so that the mortar is compressed and the joint surface is sealed.

Use a jointer of sufficient length to obtain a straight and true mortar joint. No exterior joints are to be left un-tooled.

3.3.1.1.2 Flush Joints

Flush cut mortar joints in concealed masonry surfaces and joints at electrical outlet boxes in wet areas. Finish flush cut joints by cutting off the mortar flush with the face of the wall. Point joints in unparged masonry walls below grade tight. For architectural units, such as fluted units, completely fill both the head and bed joints and flush cut.

3.3.1.1.3 Door and Window Frame Joints

On the exposed interior side of exterior frames, joints between frames and abutting masonry walls shall be raked to a depth of 3/8 inch. On the exterior side of exterior frames, joints between frames and abutting masonry walls shall be raked to a depth of 3/8 inch.

3.3.1.1.4 Joint Widths

a. Construct brick masonry with mortar joint widths equal to the difference between the specified and nominal dimensions of the unit, within tolerances permitted by TMS MSJC.

b. Provide 3/8 inch wide mortar joints in concrete masonry, except for prefaced concrete masonry units.

c. Provide 3/8 inch wide mortar joints on unfaced side of prefaced concrete masonry units and not less than 3/16 inch nor more than 1/4 inch wide on prefaced side.

d. Maintain mortar joint widths within tolerances permitted by TMS MSJC

3.3.1.2 Cutting and Fitting

Use full units of the proper size wherever possible, in lieu of cut units. Locate cut units where they would have the least impact on the architectural aesthetic goals of the facility. Perform cutting and

SECTION 04 20 00 Page 18 fitting, including that required to accommodate the work of others, by masonry mechanics using power masonry saws. Concrete masonry units may be wet or dry cut. Before being placed in the work, dry wet-cut units to the same surface-dry appearance as uncut units being laid in the wall.

Provide cut edges that are clean, true and sharp.

a. Carefully make openings in the masonry so that wall plates, cover plates or escutcheons required by the installation will completely conceal the openings and will have bottoms parallel with the masonry bed joints. Provide reinforced masonry lintels above openings over 12 inches wide for pipes, ducts, cable trays, and other wall penetrations, unless steel sleeves are used.

b. Do not reduce masonry units in size by more than one-third in height and one-half in length. Do not locate cut products at ends of walls, corners, and other openings.

3.3.1.3 Unfinished Work

Rack back unfinished work for joining with new work. Toothing may be resorted to only when specifically approved by the Contracting Officer.

Remove loose mortar and thoroughly clean the exposed joints before laying new work.

3.3.1.4 Clay Masonry Expansion Joints

Provide clay masonry expansion joints as indicated. Construct by leaving a gap. Ensure that no mortar or other noncompressible materials are within the joint. Install backer rod and sealant in accordance with Section

07 92 00 JOINT SEALANTS.

3.3.1.5 Control Joints

Provide control joints in concrete masonry as indicated. Construct by raking out mortar within the head joint in accordance with the details shown on the Drawings. Form a continuous vertical joint at control joint locations, including through bond beams, by utilizing half blocks in alternating courses on each side of the joint. Interrupt the control joint key in courses containing continuous bond beam reinforcement. Do not interrupt the horizontal reinforcement and grout at the control joint.

Where mortar was placed in the joint, rake both faces of the control joints to a depth of 3/4 inch. Install backer rod and sealant on both faces in accordance with Section 07 92 00 JOINT SEALANTS.

3.3.1.6 Decorative Architectural Units

Place decorative masonry units with the patterned face shell properly aligned in the completed wall.

3.3.2 Clay or Shale Brick Masonry

3.3.2.1 Brick Placement

Blend all brick at the jobsite from several cubes to produce a uniform appearance when installed. An observable "banding" or "layering" of colors or textures caused by improperly mixed brick is unacceptable. Lay brick facing with the better face exposed. Lay brick in running bond with each course bonded at corners, unless otherwise indicated. Lay molded

SECTION 04 20 00 Page 19 brick with the frog side down. Do not lay brick that is cored, recessed, or has other deformations in a manner that allows those deformations to be exposed to view; lay 100 percent solid units in these areas. Completely fill head and bed joints of solid units with mortar. Lay hollow units with mortar joints as specified for concrete masonry units.

Place exterior face of salvaged bricks towards the exterior.

3.3.2.2 Wetting of Units

Wetting of clay, shale brick, or hollow brick units having an initial rate of absorption of more than 1 gram per minute per square inch of bed surface shall be in conformance with ASTM C67/C67M. Ensure that each unit is nearly saturated when wetted but surface dry when laid.

Test clay or shale brick daily on the job, prior to laying, as follows:

Using a wax pencil, draw a circle the size of a quarter on five randomly selected bricks. Apply 20 drops of water with a medicine dropper to the surface within the circle on each brick. If the average time that the water is completely absorbed in the five bricks is less than 1-1/2 minutes, wet bricks represented by the five bricks tested.

3.3.2.3 Brick Sills

Lay brick on edge, slope not less than 3/4 inch downward to the outside, and project not less than 1/2 inch beyond the face of the wall to form a wash and drip. Fill all joints solidly with mortar and tool.

3.3.3 Anchored Veneer Construction

a. Construct exterior masonry wythes to the thickness indicated on the drawings. Provide a minimum 1 7/8 inch air space behind the masonry veneer. Provide means to ensure that the cavity space and flashings are kept clean of mortar droppings and other loose debris. Maintain chases and raked-out joints free from mortar and debris.

b. Place masonry in running bond pattern.

c. For veneer over stud framing, do not install veneer until the exterior sheathing, moisture barrier, veneer anchors and flashing have been installed on the backing. Take extreme care to avoid damage to the moisture barrier and flashing during construction of the masonry veneer. Repair or replace portions of the moisture barrier and flashing that are damaged prior to completion of the veneer. Provide a continuous cavity as indicated.

d. For veneer with a masonry backup wythe, lay up both the inner and the outer wythes together except when adjustable joint reinforcement assemblies are approved for use. When both wythes are not brought up together, install through-wall flashings with the exterior wythe, securing the top edge of the flashing with a termination bar and sealant, or protect flashings that are installed with the interior wythe from damage until they are fully enclosed in the wall.

e. Provide anchors (ties) to connect the veneer to its backing in sufficient quantity to comply with the following requirements: maximum wall area per anchor {tie) of 2.67 square feet, and maximum vertical spacing of 25 inches, and maximum horizontal spacing of 24 inches.

Provide additional anchors around openings larger than 16 inch in

SECTION 04 20 00 Page 20 either direction. Space anchors around perimeter of opening at a maximum of 24 inches on center. Place anchors within 12 inches of openings. Anchors with drips are not permitted.

f. With solid units, embed anchors in mortar joint and extend into the veneer a minimum of 1-1/2 inch, with at least 5/8 inch mortar cover to the outside face.

g. With hollow units, embed anchors in mortar or grout and extend into the veneer a minimum of 1-1/2 inch, with at least 5/8 inch mortar or grout cover to outside face.

3.3.4 Composite Walls

Tie masonry wythes together with joint reinforcement or with unit wall ties. Embed wall ties at least 1-1/2 inch into mortar of solid units and at least 1/2 inch into the mortar of the outer face shell of hollow units. Provide at least one tie every 2.67 square feet for wire size W1.7 and at least one tie every 4.50 square feet for wire size W2.8. Space ties at a maximum of 36 inches horizontally and 24 inches vertically. Do not cross expansion joints or control joints with ties. Fill collar joints between masonry facing and masonry backup solidly with grout.

3.3.5 ANCHORAGE

3.3.5.1 Anchorage to Concrete

Anchorage of masonry to the face of concrete columns, beams, or walls shall be with dovetail anchors spaced not over 16 inches on centers vertically and 24 inches on center horizontally.

3.3.5.2 Anchorage to Structural Steel

Masonry shall be anchored to vertical structural steel framing with adjustable steel wire anchors spaced not over 16 inches on centers vertically, and if applicable, not over 24 inches on centers horizontally.

3.3.6 Lintels

3.3.6.1 Masonry Lintels

Construct masonry lintels with lintel units filled solid with grout in all courses and reinforced with a minimum of two No. 4 bars in the bottom course unless otherwise indicated. Extend lintel reinforcement beyond each side of masonry opening 40 bar diameters or 24 inches, whichever is greater. Support reinforcing bars in place prior to grouting and locate 1/2 inch above the bottom inside surface of the lintel unit.

3.3.6.2 Steel Lintels

Provide steel lintels as shown on the Drawings. Set lintels in a full bed of mortar with faces plumb and true. Provide steel and precast lintels with a minimum bearing length of 8 inches unless otherwise indicated. In partially grouted masonry, provide fully grouted units under the full lintel bearing length, unless otherwise indicated.

3.3.7 Sills…