S05 - Contractor Technical Questions - answers.pdf

Vendor Technical Questions – Convert Residential Lots to Paved Parking

1. Has there been an asbestos or hazmat survey been completed yet? If so can we get access to this report? Sec�on 01 00 00, GENERAL REQUIREMENTS.

Yes, there was a survey done late in 2022. See attached.

2. Can you provide the original survey? The Solicita�on references it and states the details are enclosed but they are not.

Yes, see attached.

3. Detail B9 CG501/B4 CG503 for Screen Wall. How long is wall?

Sheet CG101 Wilson Lot calls out 138 LF of screen wall.

4. Is there eleva�ons and Drawing detail “cuts” that will be available for wall mounted EV/electrical/irriga�on and other box moun�ng?

No, contractor to provide submittal for VA review prior to purchase and installation. Attached cut sheet is basis of design, with all VA projects no items are sole source and contractor can choose approved equal. This will be reviewed as a shop drawing submittal.

5. Reques�ng a call box foo�ng detail be added to the prints.

Attached cut sheet is basis of design, with all VA projects no items are sole source and contractor can choose approved equal. This will be reviewed as a shop drawing submittal.

6. Are there wrought Iron Fence Dimensions for areas showing these (length)?

See sheet CG101 – Wilson Avenue Drawings. Overall length estimated by AE is 197 LF.

Contractor to field verify quantities. Also see detail F8 on sheet CG503 and specifications section 32 31 40. Validation through shop drawing review will occur during construction.

7. For EV chargers, no model is called out, is vendor proposing EV chargers or how did VA intend this to be bid?(Drawing Note 11 on CU101) Chargepoint EV charging unit or approved equal.

8. Drawing CG101 Note 10 calls out Ameristar Gate. And Detail D1 on CG503 does not show motor or drive, Can a drawing with motor posi�ons and founda�ons mounts be given?

Attached cut sheet is basis of design, with all VA projects no items are sole source and contractor can choose approved equal. This will be reviewed as a shop drawing submittal.

9. Does the contractor have to hire an IH? Page 113 of 626 2.2 MONITORING, INSPECTION AND

TESTING .2.1 GENERAL A.

Yes.

10. Are there known hazmat liquids? We didn't see any on job walk?

Bid in accordance with the information that will be provided in response to question #2. If the report does not refer to hazmat liquids, then none can be expected.

11. Do you know if any hea�ng oil tanks that leaked? How many tanks exist? Can a drawing be produced with underground Oil tanks for each residen�al property be called out on it?

Bid in accordance with the information that will be provided in response to question #2. If the report does not refer to underground tanks or underground tank leaks, then none can be expected.

12. Have all residen�al disconnects been made, if not what is s�ll live? Electric, Water, Sewer, U�lity? We saw the power was s�ll on in one of the residences.

Electrical demo drawings require the contractor to coordinate with NV Energy on power removal. Facility did disconnect water within the structures to prevent broken frozen pipes but did not remove any lines from the street into the structures.

13. Reques�ng writen confirma�on that all disconnects are to be cut and capped at the edge of the property not to the street. The Street appears to have been recently resurfaced.

Acceptable.

14. Permit Requirements:

a. Is an Excavation permit required? Yes, an encroachment/excavation permit is required.

b. Is an EPA storm water permit required? A SWPPP is required for erosion control for disturbing one acre or more or if project will disturb less than one acre but is part of a larger common plan for development or sale that will ultimately disturb one acre or more.

c. Do we need a Demo permit?

Contractor will need a grading/site improvement permit.

15. Please confirm NV will disconnect the Utility electric, cable and phone Correct?

See response to question #12. Facility has no preference on who does the actual disconnect, only that coordination occurs and the disconnect is accomplished.

16. For Tank removal what regulatory agency regulations govern this project? EPA? NV? OSHA?

The work is occurring on federal property, therefore federal regulations govern.

17. Will a qualified SWPPP developer QSD be required?

Yes, per note on drawing CG102.

18. Is 50% the required minimum for recycling Demo waste? Page 76 of 626 1.3 C Quality Assurance? If so we are requesting confirmation that 50% recycling requirement is by weight.

Yes, the recycling requirement will be measured by weight.

19. Requesting a “rock clause” be added to specifications that allows for changing conditions if and when we encounter a boulder that requires blasting/splitting or use of machines that aren’t common for the planned construction.

As the properties have been previously developed, and the plan is to convert into surface level parking, the expectation is that boulders which may require blasting or splitting will not be encountered. If so, a change order as appropriate to address the boulder(s) will be issued.

20. Sheet A-201 refers to salvaging brick from demolished houses. If there is a salvage value, how is it to be reported to the Government? If the Demolition cost is more than the salvage value, how is that to be reported to the Government?

The intent of this note is to make bidders aware of the possibility the brick may have salvage value and to include any such value in their bid for pricing purposes if they determine to do so.

There is no reporting requirement for the possible salvage value of the brick.

21. Sheet ED 101, electrical key notes state that that work will be done by NV energy or as directed by their engineered plans. For pricing purposes should the contractor assume that work is not in their scope and if directed to do so it would be a change in scope? Same for cable TV and telephone.

The contractor is to bid all work necessary for the completed project including demolition and removal of existing power lines, whether that work is accomplished by NV Energy or the contractor. Suggest bidders coordinate with NV Energy prior to bid submission.

22. Will any of the homes adjacent to the work be occupied during construction?

Yes, homes will be occupied by current residents.

23. Are there any special requirements for protection of adjacent properties other than a security fence?

Yes, existing adjacent properties shall be protected from any debris, material, equipment, or other items during the course of construction.

24. Have any arrangements or commitments between the Gov’t and neighboring properties been made that Contractors should be aware of?

No commitments have been made. However, prior to the start of the project, the VA CO will be available to meet with the residents of the adjacent properties, along with the contractor's representative, and discuss project plans and schedule.

25. Is a pre-construction survey of existing and neighboring properties required, prior to start of construction?

Yes, after award of contract but prior to the start of any work, the VA COR and contractor shall survey all existing adjacent properties to establish existing conditions of those properties.

26. Taylor St, CG503 detail F1 says ‘light pole by others” please clarify if these poles will be supplied and installed by other than the contractor for this project or if the poles will be provided by the government and installed by the contractor?

Contractor to supply and install light poles.

27. The traffic pattern as shown sheet CG 101 shows the traffic flow going through the handicap parking. Is this correct or should the HC stripping be cut off at the end of the first stall? The direction of all the other parking stalls indicates the flow of traffic was intended to go thru this area.

The traffic pattern and striping are correct as shown on CG101. The striping going through the traffic flow is the ADA accessible route to access the sidewalk.

28. Current Bid Due Date �me is listed as 7:00AM PST. Could you push the �me back a few hours?

Suggest you discuss with the Contracting Officer and decide if you want to change the bid time.

29. Drawing Detail B9/CG501 of the Wilson Street drawings indicates a masonry screen wall.

However, there is not a masonry spec sec�on. Please provide a masonry spec sec�on.

Specification sections for masonry requirements have been added via addendum.

30. Each drawing set and the solicita�on SOW makes reference to the presence of Asbestos, Lead, PCB’s. Is a hazardous material tes�ng report available and can the VA provide a copy of that report?

Yes, see response to question #2.

31. Reference is made to exis�ng underground hea�ng oil tanks, but loca�on and sizes are not shown in the drawings. Was an assessment done to determine the loca�on of the underground and condi�on of the tanks? Was the presence of underground tanks a seller disclosure when VA purchased the property?

The environmental hazard report that is forthcoming will include information on any underground heating oil tanks, if any were found during the environmental review.

32. Without quan�fiable informa�on, should an underground tank be encountered during construc�on, will this be considered a Differing Site Condi�on? Likewise, should contaminated soil be encountered, will that also be considered a Differing Site Condi�on?

The contractor is to bid the project based on information included in the forthcoming environmental hazard report. If the provided report does not make reference to underground tanks or leaks thereof and one or both are discovered during the project, then a change order will be issued accordingly. However, if either or both are referenced in the report and found, the contractor shall remove such without requiring issuance of a change order.

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Code Blue • 259 Hedcor Street • Holland, MI 49423 USA • 800.205.7186 • www.codeblue.com page 1 of 2 CPS-103-I

CB 1-s Product Sheet

Standard Features

� Analog or VoIP speakerphone options �ToolVox® compatible with Blue Alert® MNS and

Blue Alert EMS

� IA4100

2 Inputs - These are simply NO dry contact 3 Outputs - Can be configured NO or NC

1 Line Level Audio Output 600 ohm

� IP5000

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3 NC)

� High output combo LED beacon/strobe � 24V AC LED low consumption area light � LED lit stainless steel faceplate � Passive vent � 24V AC power � Voice Identifier � ADA compliant � UV resistant lenses � Vandal resistant hardware � Phone line surge suppressor � Ultra-weather resistant finish � Internal foundation anchor kit

Optional Features

Two-button speakerphone w/keypad Two-button speakerphone Active vent NightCharge® with photocell strobe Overhead camera mount Custom colors and graphics Step-down multi-tap power transformer GSM & IP wireless communication options 360˚, 6-speaker Public Address System AED Housing

PEDESTAL – INTERACTIVE

VOICE COMMUNICATION UNIT

The CB 1‑s is the original Code Blue pedestal unit and sets the industry standard for rugged construction, full feature availability and high visibility. The CB 1‑s is easily recognized throughout a full 360-degree area. The user friendly lighted faceplate and the integral area light ensures rapid location in an open environment. The high output strobe is easily identifiable by security when activated.

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ratings

UL UL 60950-1 and UL 2017

IP IP56

NEMA 4X

Code Blue • 259 Hedcor Street • Holland, MI 49423 USA • 800.205.7186 • www.codeblue.com page 2 of 2 CPS-103-I

PUSH FOR HELP

Code Blue

FP1

PUSH FOR HELP

Code Blue

INFO

FP2

PUSH FOR HELP

Code Blue

CALL

1 2 3

4 5 6

7 8 9

* 0 #

FP2-K

Optional faceplate assembly with additional CALL button and keypad

Standard faceplate assembly with single red PUSH FOR HELP button

Optional faceplate assembly with additional black INFO button

• Mounting hardware and template for unit is shipped in advance for foundation work.

• Specifications subject to change without notice or obligation on the part of the manufacturer.

unit specifications

Overall Height 108” (274.32 cm) Outside Diameter 12.75” (32.38 cm) Housing Material, steel .25” (.635 cm) Access Opening (w x h) 14” x 9.64” (35.56 x 24.49 cm) Overall Weight 330 lbs. (149.69 kg) Standard Power Requirements

24V AC @ 50w gsM cellular option

Provides wireless communications to eliminate trenching for phone lines. System requires a reliable GSM cellular service to be provided by customer.

ip Wireless option

Code Blue has three varieties of blank mounting rings available as optional features for its 1 Series Pedestal Help Points® (CB 1-w not included). These rings allow a customer to internally and externally mount third party communication and security equipment with their unit to enhance connectivity and functionality.

nightcharge®

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CB 1-s Product Sheet faceplate options unit finish colors

Standard Painted Finish British Racing Green, Cardinal Red, Dark Bronze, Gloss White, Gloss Black, Medium Bronze, Midnight Blue, Safety Blue, Safety Red, Safety Yellow, Tiger Orange, Bright Silver

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410 Grand Avenue, Suite 201C � Laramie, Wyoming 82070 � Telephone: (307) 460-2054 � Fax: (307) 460-2053

Addendum Number 01

Project: West Haven Construct New Inpatient Pharmacy

Project number: 689-411

Date: June 28, 2023

NOTICE TO PROPOSERS:

A. This Addendum shall be considered part of the contract documents for the above-mentioned project as though it had been issued at the same time and incorporated integrally therewith.

Where provisions of the following supplementary data differ from those of the original contract documents, this Addendum shall govern and take precedence.

B. Proposers are hereby notified that they shall make any necessary adjustments in their estimate on account of this Addendum. It will be construed that each Proposer’s proposal is submitted with full knowledge of all modifications and supplemental data specified therein. Acknowledge receipt of this addendum in the space provided on the proposal form. Failure to do so may subject Proposer to disqualification.

Revisions:

Specifications:

Section Description of / Reason for Change

33 63 00 Steam Energy Distribution - Specification section added to provide requirements for underground steam distribution piping.

West Haven Building 1 Report Final

9-16-11

Full Building 1 Hazardous Material report included for reference. VOLUME II ASBESTOS CONTAINING MATERIAL &

LEAD CONTAINING PAINT SURVEY REPORT BUILDING 1 by

Mabbett dated September 16, 2011

04 05 13 04 05 16 04 20 00

Masonry Mortaring Masonry Grouting Unit Masonry

- Specification sections added to provide requirements for masonry screen wall.

CONVERT PROCURED RESIDENTIAL LOTS TO SURFACE LEVEL ASPHALT PAVED PARKING

654-19-823 June 28, 2023

MASONRY MORTARING

04 05 13- 1

NMVAHCS Albuquerque, NM 501-17-105 Upgrade Energy Plant Equipment Infrastructure 100% Construction Documents

SECTION 04 05 13

MASONRY MORTARING

PART 1 - GENERAL

1.1 DESCRIPTION:

A. Section specifies mortar materials and mixes.

1.2 RELATED WORK:

A. Mortar used in Section:

1. Section 04 05 16, MASONRY GROUTING.

2. Section 04 20 00, UNIT MASONRY.

1.3 TESTING LABORATORY-CONTRACTOR RETAINED

A. Engage a commercial testing laboratory approved by Contracting Officer Representative to perform tests specified below.

B. Submit information regarding testing laboratory's facilities and qualifications of technical personnel to Contracting Officer Representative.

1.4 TESTS

A. Test mortar and materials specified.

B. Certified test reports.

C. Identify materials by type, brand name and manufacturer or by origin.

D. Do not use materials until laboratory test reports are approved by Contracting Officer

Representative.

E. After tests have been made and materials approved, do not change without additional test and approval of Contracting Officer Representative.

F. Testing:

1. Test materials proposed for use for compliance with specifications in accordance with test methods contained in referenced specifications and as follows:

2. Mortar:

a. Test for compressive strength and water retention; ASTM C270.

b. Mortar compressive strengths 28 days as follows:

Type S: Minimum 12400 kPa (1800 psi) at 28 days.

3. Cement:

a. Test for water soluble alkali (nonstaining) when nonstaining cement is specified.

b. Nonstaining cement shall contain not more than 0.03 percent water soluble alkali.

4. Sand: Test for deleterious substances, organic impurities, soundness and grading.

1.5 SUBMITTALS

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND

SAMPLES.

VASNHCS RENO, NV 654-19-823

CONVERT PROCURED RESIDENTIAL LOTS TO SURFACE LEVEL ASPHALT PAVED PARKING

04 05 13- 2

NMVAHCS Albuquerque, NM 501-17-105 Upgrade Energy Plant Equipment Infrastructure 100% Construction Documents

B. Certificates:

1. Testing laboratory's facilities and qualifications of its technical personnel.

2. Indicating that following items meet specifications:

a. Portland cement.

b. Masonry cement.

c. Mortar cement.

d. Hydrated lime.

e. Fine aggregate (sand).

C. Laboratory Test Reports:

1. Mortar, each type.

2. Admixtures.

D. Manufacturer's Literature and Data:

1. Cement, each kind.

2. Hydrated lime.

3. Admixtures.

4. Liquid acrylic resin.

5. Standard mortar colors.

1.6 PRODUCT DELIVERY, STORAGE AND HANDLING

A. Deliver masonry materials in original sealed containers marked with name of manufacturer and identification of contents.

B. Store masonry materials under waterproof covers on planking clear of ground, and protect damage from handling, dirt, stain, water and wind.

1.7 APPLICABLE PUBLICATIONS

A. Publications listed below form a part of specification to extent referenced. Publications are referenced in text by basic designation only.

B. American Society for Testing and Materials (ASTM):

C40-04 ....................................... Organic Impurities in Fine Aggregates for Concrete

C91-05 ....................................... Masonry Cement

C109-08 ..................................... Compressive Strength of Hydraulic Cement Mortars (Using 2-in.

or 50-MM Cube Specimens)

C144-04 ..................................... Aggregate for Masonry Mortar

C150-09 ..................................... Portland Cement

C207-06 ..................................... Hydrated Lime for Masonry Purposes

C270-10 ..................................... Mortar for Unit Masonry

C307-03(R2008) ........................ Tensile Strength of Chemical - Resistant Mortar, Grouts, and

Monolithic Surfacing

C321-00(R2005) ........................ Bond Strength of Chemical-Resistant Mortars

04 05 13- 3

NMVAHCS Albuquerque, NM 501-17-105 Upgrade Energy Plant Equipment Infrastructure 100% Construction Documents

C348-08 ..................................... Flexural Strength of Hydraulic Cement Mortars

C595-10 ..................................... Blended Hydraulic Cement

C780-10 ..................................... Preconstruction and Construction Evaluation of Mortars for Plain and Reinforced Unit Masonry

C979-10 ..................................... Pigments for Integrally Colored Concrete

C1329-05 ................................... Mortar Cement

PART 2 - PRODUCTS

2.1 HYDRATED LIME

A. ASTM C207, Type S.

2.2 AGGREGATE FOR MASONRY MORTAR

A. ASTM C144 and as follows:

1. Light colored sand for mortar for laying face brick.

2. White plastering sand meeting sieve analysis for mortar joints for pointing.

B. Test sand for color value in accordance with ASTM C40. Sand producing color darker than specified standard is unacceptable.

2.3 BLENDED HYDRAULIC CEMENT

A. ASTM C595, Type IS, IP.

2.4 MASONRY CEMENT

A. ASTM C91. Type S.

2.5 MORTAR CEMEMT

A. ASTM C1329, Type S.

2.6 PORTLAND CEMENT

A. ASTM C150, Type I.

2.7 LIQUID ACRYLIC RESIN

A. A formulation of acrylic polymers and modifiers in liquid form designed for use as an additive for mortar to improve physical properties.

2.8 WATER

A. Potable, free of substances that are detrimental to mortar, masonry, and metal.

2.9 POINTING MORTAR

A. For Cast Stone or Precast Concrete: Proportion by volume; One part white Portland cement, two parts white sand, and 1/5 part hydrated lime.

2.10 MASONRY MORTAR

A. Conform to ASTM C270.

B. Admixtures:

1. Do not use mortar admixtures, unless approved by Contracting Officer Representative.

04 05 13- 4

NMVAHCS Albuquerque, NM 501-17-105 Upgrade Central Plant Equipment Infrastructure 65% Design Development

2. Submit laboratory test report showing effect of proposed admixture on strength, water retention, and water repellency of mortar.

3. Do not use antifreeze compounds.

C. Colored Mortar:

1. Maintain uniform mortar color for exposed work throughout.

2. Match mortar color in approved sample.

3. Architect to select color from manufacturer’s standard colors.

2.11 HIGH BOND MORTAR

A. Mixture by volume, one-part Portland cement, 1/4-part hydrated lime, three-parts sand, water, and liquid acrylic resin.

B. Mortar properties when tested in accordance with referenced specifications.

1. Compressive Strength, ASTM C109: Minimum 19,305 kPa (2800 psi), using 50 mm (2 inch) cubes.

2. Tensile Strength, ASTM C307: 3861 kPa Minimum (560 psi), using the 25mm (1 inch) briquettes.

3. Flexural Strength, ASTM C348: Minimum 6067 kPa (880 psi), using flexural bar.

4. Bond Strength, ASTM C321: Minimum 2965 kPa (430 psi), using crossed brick.

PART 3 - EXECUTION

3.1 MIXING

A. Mix in a mechanically operated mortar mixer.

1. Mix mortar for at least three minutes but not more than five minutes.

B. Measure ingredients by volume. Measure by the use of a container of known capacity.

C. Mix water with dry ingredients in sufficient amount to provide a workable mixture which will adhere to vertical surfaces of masonry units.

D. Mortar that has stiffened because of loss of water through evaporations:

1. Discard mortar that has reached its initial set or has not been used within two hours.

- - - E N D - - -

MASONRY GROUTING

04 05 16 - 1

NMVAHCS Albuquerque, NM 501-17-105 Upgrade Central Plant Equipment Infrastructure 100% Construction Documents

SECTION 04 05 16

MASONRY GROUTING

PART 1 - GENERAL

1.1 DESCRIPTION:

A. Section specifies grout materials and mixes.

1.2 RELATED WORK:

A. Grout used in Section:

1. Section 04 20 00, UNIT MASONRY.

1.3 TESTS:

A. Test grout and materials specified.

B. Certified test reports.

C. Identify materials by type, brand name and manufacturer or by origin.

D. Do not use materials until laboratory test reports are approved by Contracting Officer

Representative.

E. After tests have been made and materials approved, do not change without additional test and approval of Contracting Officer Representative.

F. Testing:

1. Test materials proposed for use for compliance with specifications in accordance with test methods contained in referenced specifications and as follows:

2. Grout:

a. Test for compressive strength; ASTM C1019.

b. Grout compressive strength of 13790 kPa (2000 psi) at 28 days.

3. Sand: Test for deleterious substances, organic impurities, soundness and grading.

1.4 SUBMITTALS:

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND

SAMPLES.

B. Certificates:

1. Indicating that following items meet specifications:

a. Portland cement.

b. Masonry cement.

c. Grout.

d. Hydrated lime.

e. Fine aggregate (sand).

f. Color admixture.

C. Laboratory Test Reports:

1. Grout, each type.

04 05 16 - 2

NMVAHCS Albuquerque, NM 501-17-105 Upgrade Central Plant Equipment Infrastructure 100% Construction Documents

2. Admixtures.

D. Manufacturer's Literature and Data:

1. Cement, each kind.

2. Hydrated lime.

3. Admixtures.

4. Liquid acrylic resin.

1.5 PRODUCT DELIVERY, STORAGE AND HANDLING:

A. Deliver masonry materials in original sealed containers marked with name of manufacturer and identification of contents.

B. Store masonry materials under waterproof covers on planking clear of ground, and protect damage from handling, dirt, stain, water and wind.

1.6 APPLICABLE PUBLICATIONS:

A. Publications listed below form a part of specification to extent referenced. Publications are referenced in text by basic designation only.

B. American Society for Testing and Materials (ASTM):

C40-04 ....................................... Organic Impurities in Fine Aggregates for Concrete

C91-05 ....................................... Masonry Cement

C150-09 ..................................... Portland Cement

C207-06 ..................................... Hydrated Lime for Masonry Purposes

C404-07 ..................................... Aggregate for Masonry Grout

C476-10 ..................................... Grout for Masonry

C595-10 ..................................... Blended Hydraulic Cement

C979-10 ..................................... Pigments for Integrally Colored Concrete

C1019-11 ................................... Sampling and Testing Grout

PART 2 - PRODUCTS

2.1 HYDRATED LIME:

A. ASTM C207, Type S.

2.2 AGGREGATE FOR MASONRY GROUT:

A. ASTM C404, Size 8.

2.4 MASONRY CEMENT:

A. ASTM C91. Type S.

2.5 PORTLAND CEMENT:

A. ASTM C150, Type I.

2.7 WATER:

A. Potable, free of substances that are detrimental to grout, masonry, and metal.

2.8 GROUT:

A. Conform to ASTM C476 except as specified.

04 05 16 - 3

NMVAHCS Albuquerque, NM 501-17-105 Upgrade Central Plant Equipment Infrastructure 100% Construction Documents

B. Grout type proportioned by volume as follows:

1. Fine Grout:

a. Portland cement or blended hydraulic cement: one part.

b. Hydrated lime: 0 to 1/10 part.

c. Fine aggregate: 2-1/4 to three times sum of volumes of cement and lime used.

2. Coarse Grout:

a. Portland cement or blended hydraulic cement: one part.

b. Hydrated lime: 0 to 1/10 part.

c. Fine aggregate: 2-1/4 to three times sum of volumes of cement and lime used.

d. Coarse aggregate: one to two times sum of volumes of cement and lime used.

3. Sum of volumes of fine and coarse aggregates: Do not exceed four times sum of volumes of cement and lime used.

PART 3 - EXECUTION

3.1 MIXING:

A. Mix in a mechanically operated grout mixer.

1. Mix grout for at least five minutes.

B. Measure ingredients by volume. Measure by the use of a container of known capacity.

C. Mix water with grout dry ingredients in sufficient amount to bring grout mixture to a pouring consistency.

3.2 GROUT USE LOCATIONS:

A. Use fine grout for filling wall cavities and cells of concrete masonry units where the smallest dimension is 50 mm (2 inches) or less.

B. Use either fine grout or coarse grout for filling wall cavities and cells of concrete masonry units where the smallest dimension is greater than 50 mm (2 inches).

C. Do not use grout for filling bond beam or lintel units.

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NMVAHCS Albuquerque, NM 501-17-105 Upgrade Central Plant Equipment Infrastructure 100% Construction Documents

NMVAHCS Albuquerque, NM 501-17-105 Upgrade Energy Plant Equipment Infrastructure 100% Construction Documents

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SECTION 04 20 00

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PART 1 - GENERAL

1.1 DESCRIPTION

A. Section Includes: Concrete Masonry unit (CMU) assemblies for:

1. Exterior walls.

2. Interior walls and partitions.

1.2 RELATED REQUIREMENTS

A. Mortars and Grouts: Section 04 05 13, MASONRY MORTARING, Section 04 05 16, MASONRY

GROUTING.

B. Steel Lintels and Shelf Angles: Section 05 50 00, METAL FABRICATIONS.

C. Cavity Insulation: Section 07 21 13, THERMAL INSULATION.

D. Exterior Insulation and Finish Systems: Section 07 24 00, EXTERIOR INSULATION AND FINISH

SYSTEMS.

D. Flashing: Section 07 60 00, FLASHING AND SHEET METAL.

E. Sealants and Sealant Installation: Section 07 92 00, JOINT SEALANTS.

F. Color and Texture of Masonry Units: Section 09 06 00, SCHEDULE FOR FINISHES.

1.3 APPLICABLE PUBLICATIONS

A. Comply with references to extent specified in this section.

B. American Concrete Institute (ACI):

1. 315-99 - Details and Detailing of Concrete Reinforcement.

2. 530.1/ASCE 6/TMS 602-13 - Specification for Masonry Structures.

C. ASTM International (ASTM):

1. A615/A615M-15ae1 - Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement.

2. A951/A951M-14 - Steel Wire for Masonry Joint Reinforcement.

3. A1064/A1064M-15 - Carbon-Steel Wire and Welded Wire Reinforcement, Plain and

Deformed, for Concrete.

4. C34-13 - Structural Clay Load-Bearing Wall tile.

5. C55-14a - Concrete Building Brick.

6. C56-13 - Structural Clay Nonloadbearing Tile.

7. C62-13a - Building Brick (Solid Masonry Units Made from Clay or Shale).

8. C67-14 - Sampling and Testing Brick and Structural Clay Tile.

9. C90-14 - Load-Bearing Concrete Masonry Units.

10. C126-15 - Ceramic Glazed Structural Clay Facing Tile, Facing Brick, and Solid Masonry

Units.

11. C216-15 - Facing Brick (Solid Masonry Units Made From Clay or Shale).

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12. C612-14 - Mineral Fiber Block and Board Thermal Insulation.

13. C744-14 - Prefaced Concrete and Calcium Silicate Masonry Units.

14. D1056-14 - Flexible Cellular Materials - Sponge or Expanded Rubber.

15. D2240-05(2010) - Rubber Property-Durometer Hardness.

16. F1667-15 - Driven Fasteners: Nails, Spikes, and Staples.

D. American Welding Society (AWS):

1. D1.4/D1.4M-11 - Structural Welding Code - Reinforcing Steel.

E. Brick Industry Association (BIA):

1. TN 11B-88 - Guide Specifications for Brick Masonry, Part 3.

F. Federal Specifications (Fed. Spec.):

1. FF-S-107C(2) - Screws, Tapping and Drive.

1.4 SUBMITTALS

A. Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

B. Submittal Drawings:

1. Fabrication, bending, and placement of reinforcing bars. Comply with ACI 315. Show bar schedules, diagrams of bent bars, stirrup spacing, lateral ties and other arrangements and assemblies.

2. Special masonry shapes, profiles, and placement.

3. Masonry units for typical window and door openings, and, for special conditions as affected by structural conditions.

C. Manufacturer's Literature and Data:

1. Description of each product.

2. Installation instructions.

D. Samples:

1. Concrete masonry units, when exposed in finish work.

2. Anchors and Ties: Each type.

3. Joint Reinforcing: 1200 mm (48 inches) long each type.

E. Sustainable Construction Submittals:

1. Recycled Content: Identify post-consumer and pre-consumer recycled content percentage by weight.

F. Test reports: Certify products comply with specifications.

1. Ceramic glazed facing brick.

G. Certificates: Certify products comply with specifications.

1. Face brick.

2. Solid and load-bearing concrete masonry units, including fire-resistant rated units.

3. Ceramic glazed facing brick.

4. Glazed structural clay facing tile.

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5. Structural clay tile units.

H. Delegated Design Drawings and Calculations: Signed and sealed by responsible design professional.

1.5 QUALITY ASSURANCE

A. Welders and Welding Procedures Qualifications: AWS D1.4/D1.4M.

B. Mockups:

1. Before starting masonry, build a mockup panel minimum 1800 mm by 1800 mm (6 feet by

6 feet) with 600 mm (24 inch) 90 degree return for outside corner.

a. Use masonry units from random cubes of units delivered on site.

b. Include structural backup, reinforcing, ties, and anchors.

2. Mockup panel approved by Contracting Officer's Representative set workmanship and aesthetic quality for masonry work.

3. Clean sample panel to test cleaning methods.

4. Remove mockup panel when directed by Contracting Officer's Representative.

1.6 DELIVERY

A. Deliver products in manufacturer's original sealed packaging.

B. Mark packaging, legibly. Indicate manufacturer's name or brand, type, color, production run number, and manufacture date.

C. Before installation, return or dispose of products within distorted, damaged, or opened packaging.

1.7 STORAGE AND HANDLING

A. Store products above grade, protected from contamination.

B. Protect products from damage during handling and construction operations.

1.8 FIELD CONDITIONS

A. Hot and Cold Weather Requirements: Comply with ACI 530.1/ASCE 6/TMS 602.

1.9 WARRANTY

A. Construction Warranty: FAR clause 52.246-21, "Warranty of Construction."

1.10 PRE-INSTALLATION CONFERENCE

A. Convene a meeting on site, after submittals are received and approved but before any work, to review drawings and specifications, submittals, schedule, manufacturer instructions, site logistics and pertinent matters of coordination, temporary protection, governing regulations, tests and inspections; participants to include RE/COR and all parties whose work is effected or related to the work of this section.

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PART 2 - PRODUCTS

2.1 SYSTEM PERFORMANCE

A. Delegated Design: Prepare submittal documents including design calculations and drawings signed and sealed by registered design professional, licensed in state where work is located.

2.2 CONCRETE MASONRY UNITS

A. Concrete Masonry Units (CMU):

1. Hollow and Solid Load-Bearing Concrete Masonry Units: ASTM C90.

a. Unit Weight: Normal weight.

b. Fire rated units for fire rated partitions.

2. Sizes: Modular, 200 mm by 400 mm (8 inches by 16 inches) nominal face dimension;

thickness as indicated on drawings.

3. For molded faces used as a finished surface, use concrete masonry units with uniform fine to medium surface texture unless specified otherwise.

4. Use bullnose concrete masonry units at corners exposed in finished work with 25 mm

(1 inch) minimum radius rounded vertical exterior corners (bullnose units).

5. Customized Units:

1) Ground Face Units: Ground Filled and polished finish on exposed faces.

2.3 REINFORCEMENT

A. Steel Reinforcing Bars: ASTM A615, deformed bars, 420 MPa (Grade 60) for bars No. 10 to No.

57 (No. 3 to No. 18), except as otherwise indicated.

B. Joint Reinforcement:

1. Form from wire complying with ASTM A951.

2. Galvanized after fabrication.

3. Width of joint reinforcement 40 mm (1 5/8-inches) less than nominal width of masonry wall or partition.

4. Cross wires welded to longitudinal wires.

5. Joint reinforcing at least 3000 mm (10 feet) in length.

6. Joint reinforcing in rolls is not acceptable.

7. Joint reinforcing that is crimped to form drip is not acceptable.

8. Maximum spacing of cross wires 400 mm (16 inches) to longitudinal wires.

9. Ladder Design:

a. Longitudinal wires deformed (0.16 inch) diameter wire.

b. Cross wires (0.16 inch) diameter.

10. Trussed Design:

a. Longitudinal and cross wires not less than 4 mm (0.16 inch nominal) diameter.

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b. Longitudinal wires deformed.

2.4 PREFORMED COMPRESSIBLE JOINT FILLER

A. Thickness and depth to fill the joint as specified.

B. Closed Cell Neoprene: ASTM D1056, Type 2, Class A, Grade 1.

C. Non-Combustible Type: ASTM C612, Type V, 1800 degrees F.

2.5 ACCESSORIES

A. Mesh Weep/Vent: Free-draining mesh; made from polyethylene strands, of length required to extend from exterior face of stone to cavity behind, in color selected from manufacturer's standard.

B. Cavity Drain Material: Recycled polyester/polyethylene mesh trapezoidal shaped to maintain cavity air flow and drainage while suspending mortar droppings at unequal heights.

C. Reinforcing Bar Positioners: Wire units designed to fit into mortar bed joints spanning masonry unit cells with loops for holding reinforcing bars in center of cells. Units are formed from 0.148-inch steel wire, hot-dip galvanized after fabrication. Provide units designed for number of bars indicated.

D. Masonry Cleaner:

1. Detergent type cleaner selected for each type of masonry used.

2. Acid cleaners are not acceptable.

3. Use soap-less type specially prepared for cleaning brick or concrete masonry as appropriate.

PART 3 - EXECUTION

3.1 INSTALLATION - GENERAL

A. Install products according to manufacturer's instructions // and approved submittal drawings //.

1. When manufacturer's instructions deviate from specifications, submit proposed resolution for

Contracting Officer's Representative consideration.

B. Keep finish work free from mortar smears or spatters, and leave neat and clean.

C. Wall Openings:

1. Fill hollow metal frames built into masonry walls and partitions solid with mortar as laying of masonry progresses.

2. When items are not available when walls are built, prepare openings for subsequent installation.

D. Tooling Joints:

1. Do not tool until mortar has stiffened enough to retain thumb print when thumb is pressed against mortar.

2. Tool while mortar is soft enough to be compressed into joints and not raked out.

3. Finish joints in exterior face masonry work with jointing tool, and provide smooth, water-tight concave joint unless specified otherwise.

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4. Tool Exposed interior joints in finish work concave unless specified otherwise.

E. Partition Height:

1. Extend partitions minimum 100 mm (4 inches) above suspended ceiling or to overhead construction where no ceiling occurs.

2. Extend following partitions to overhead construction.

a. Full height partitions, and fire partitions and smoke partitions indicated on drawings.

b. Both walls at expansion joints.

c. Corridor walls.

d. Walls at stairway and stair halls, elevators, dumbwaiters, trash and laundry chute shafts, and other vertical shafts.

e. Walls at refrigerator space.

f. Reinforced masonry partitions.

3. Extend finished masonry partitions minimum 100 mm (4 inches) above suspended ceiling and continue with concrete masonry units to overhead construction:

F. Lintels:

1. Lintels are not required for openings less than 1000 mm (40 inches) wide that have hollow metal frames.

2. Openings 1025 mm (41 inches) wide to 1600 m (63 inches) wide without structural steel lintel or frames, require lintel formed of concrete masonry lintel or bond beam units filled with grout and reinforced with one No. 16 (No. 5) rod top and bottom for each 100 mm (4 inches) of nominal thickness unless shown otherwise.

3. Precast concrete lintels of 25 MPa (3,000 psi) concrete, same thickness as partition, and with one No. 16 (No. 5) deformed bar top and bottom for each 100 mm (4 inches) of nominal thickness, is acceptable in lieu of reinforced CMU masonry lintels.

4. Use steel lintels, for openings greater than 1600 m (63 inches) wide, brick masonry openings, and elevator openings unless shown otherwise.

5. Doors having overhead concealed door closers require steel lintel, and pocket for closer box.

6. Lintel Bearing Length: Minimum 100 mm (4 inches) at both ends.

7. Build masonry openings or arches over wood or metal centering and supports when steel lintels are not used.

G. Wall, Furring, and Partition Units:

1. Lay out field units to provide one-half running bond, unless indicated otherwise.

2. Align head joints of alternate vertical courses.

3. At sides of openings, balance head joints in each course on vertical center lines of openings.

4. Minimum Masonry Unit Length: 100 mm (4 inches).

5. On interior partitions provide 6 mm (1/4 inch) open joint for caulking between existing construction, exterior walls, concrete work, and abutting masonry partitions.

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6. Use minimum 100 mm (4 inches) nominal thick masonry for free standing furring, unless indicated otherwise.

7. Do not abut existing plastered surfaces except suspended ceilings with new masonry partitions.

H. Use minimum 100 mm (4 inches) nominal thick masonry for fireproofing steel columns unless indicated otherwise.

I. Before connecting new masonry with previously laid masonry, remove loosened masonry or mortar, and clean and wet work in place as specified under wetting.

J. When new masonry partitions start on existing floors, machine cut existing floor finish material down to concrete surface.

K. Structural Steel Encased in Masonry:

1. Where structural steel is encased in masonry and voids between steel and masonry are filled with mortar, provide minimum 25 mm (1 inch) mortar free expansion space between masonry and steel by applying box board material to steel before masonry is laid.

2. Do not install spacing material where steel is bearing on masonry or masonry is bearing on steel.

L. Chases:

1. Do not install chases in masonry walls and partitions exposed to view in finished work, including painted or coated finishes on masonry.

2. Masonry 100 mm (4 inch) nominal thick may have electrical conduits 25 mm (1 inch) or less in diameter when covered with soaps, or other finishes.

3. Fill recess chases after installation of conduit, with mortar and finish flush.

4. When pipes or conduits, or both occur in hollow masonry unit partitions retain minimum one web of hollow masonry units.

M. Wetting and Wetting Test:

1. Test and wet brick and clay tile according to BIA TN 11B.

2. Do not wet concrete masonry units or glazed structural facing tile before laying.

N. Temporary Formwork: Provide formwork and shores as required for temporary support of reinforced masonry elements.

O. Construct formwork to conform to shape, line and dimensions indicated on drawings. Make sufficiently tight to prevent mortar, grout, or concrete leakage. Brace, tie and support formwork as required to maintain position and shape during construction and curing of reinforced masonry.

P. Do not remove forms and shores until reinforced masonry members have hardened sufficiently to carry their own weight and other reasonable temporary construction loads.

Q. Minimum Curing Times Before Removing Shores and Forms:

1. Girders and Beams: 10 days.

2. Slabs: 7 days.

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3. Reinforced Masonry Soffits: 7 days.

3.2 INSTALLATION - ANCHORAGE

A. Anchorage of Abutting Masonry:

1. Anchor interior 100 mm (4 inch) thick masonry partitions to exterior masonry walls with wall ties. Space ties at 600 mm (24 inches) maximum vertical intervals. Extend ties 100 mm

(4 inches) minimum into masonry.

2. Anchor interior masonry bearing walls or interior masonry partitions over 100 mm (4 inches) thick to masonry walls with rigid wall anchors spaced at 400 mm (16 inch) maximum vertical intervals.

3. Anchor abutting masonry walls and partitions to concrete with dovetail anchors. Install dovetail slots vertically in concrete at centerline of abutting wall or partition. Locate dovetail anchors at 400 mm (16 inch) maximum vertical intervals. Secure anchors to existing wall with two 9 mm (3/8 inch) by 75 mm (3 inch) expansion bolts or two power-driven fasteners.

4. Anchor abutting interior masonry partitions to existing concrete and existing masonry construction, with adjustable wall ties. Extend ties minimum 100 mm (4 inches) into joints of new masonry. Fasten ties to existing concrete and masonry construction, with powder actuated drive pins, nail or other means that provides rigid anchorage. Install anchors at

400 mm (16 inch) maximum vertical intervals.

B. Masonry Furring:

1. Anchor masonry furring less than 100 mm (4 inches) nominal thick to masonry walls or to concrete with adjustable wall ties or dovetail anchors.

2. Space at maximum 400 mm (16 inches) on center in both directions.

C. Anchorage to Steel Beams or Columns:

1. Use adjustable beam anchors on each flange.

2. At columns weld steel rod to steel columns at 300 mm (12 inch) intervals, and place wire ties in masonry courses at 400 mm (16 inches) maximum vertically.

3.3 INSTALLATION - REINFORCEMENT

A. Joint Reinforcement:

1. Install joint reinforcement in CMU wythe of combination brick and CMU, cavity walls, and single wythe concrete masonry unit walls or partitions.

2. Reinforcing is acceptable in lieu of individual ties for anchoring brick facing to CMU backup in exterior masonry walls.

3. Locate joint reinforcement in mortar joints at 400 mm (16 inch) maximum vertical intervals.

4. Additional joint reinforcement is required in mortar joints at both 200 mm (8 inches) and 400

(16 inches) above and below windows, doors, louvers and similar openings in masonry.

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5. Wherever brick masonry is backed up with stacked bond masonry, install multiple wythe joint reinforcement in every two courses of CMU backup, and in corresponding joint of facing brick.

B. Steel Reinforcing Bars:

1. Install reinforcing bars in cells of hollow masonry units where required for vertical reinforcement and in bond beam units for horizontal reinforcement. Install in wall cavities of reinforced masonry walls where indicated on drawings.

2. Bond Beams:

a. Form Bond beams of load-bearing concrete masonry units filled with grout and reinforced with two No. 15m (No. 5) reinforcing bars unless shown otherwise. Do not cut reinforcement.

b. Brake bond beams only at expansion joints and at control joints, if shown.

3. Stack Bond:

a. Locate additional joint reinforcement in vertical and horizontal joints as indicated on drawings.

b. Anchor vertical reinforcement into foundation or wall or bond beam below.

c. Provide temporary bracing for walls over 8 feet tall until permanent horizontal bracing is completed.

4. Grout openings:

a. Leave cleanout holes in double wythe walls during construction by omitting units at base of one side of wall.

b. Locate 75 mm by 75 mm (3 inches. by 3 inches.) min. cleanout holes at location of vertical reinforcement.

c. Keep grout space clean of mortar accumulation and debris. Clean as work progresses and immediately before grouting.

3.4 INSTALLATION - BRICK…