Specifications Matoc OcoeeBywaySignsRev1 18 11.pdf

CHEROKEE NATIONAL FOREST

OCOEE SCENIC BYWAY

SIGNS

SPECIFICATIONS

JANUARY 2012

SPECIFICATION INDEX

DIVISION 1 - GENERAL REQUIREMENTS

01110 Summary of Work

01270 Measurement & Payment

01330 Submittals

DIVISION 2 - SITE WORK

02220 Selective Demolition

02315 Site Preparation

02370 Erosion & Sediment Control

02920 Seeding & Mulching

DIVISION 3 – CONCRETE

03300 Cast in Place Concrete

DIVISION 4 – MASONRY

04810 Concrete Unit Masonry

04860 Stone Masonry

SECTION 01110

SUMMARY OF WORK

PART 1 GENERAL

1.1 PROJECT LOCATION

A. This work will be performed at the five (5) sites highlighted below on the Ocoee Ranger District of the Cherokee

National Forest along US Highway 64.

1.2 DESCRIPTION

A. This work shall consist of constructing concrete and concrete masonry unit (CMU) sign bases with native stone veneer. The sign bases are to identify sites along the Ocoee Scenic Byway. See the attached location map for the following sites:

1. East Portal - Not In Contract (NIC)

2. Ocoee Ranger Station - Major Site

3. Sugarloaf Park - NIC

4. Parksville Beach - Minor Site

5. Parksville Boat Ramp - Minor Site

6. East Parksville Boat Ramp - Minor Site

7. Mac Point Beach - NIC

8. Big Creek Launch - NIC

9. Caney Creek Launch - NIC

10. Rogers Branch Launch - NIC

11. Thunder Rock Campground - NIC

12. Ocoee Whitewater Center - Major Site

13. Upper Put-In - NIC

14. Boyd Gap - NIC

15. West Portal - NIC

B. The Contractor shall furnish all labor, materials, equipment, tools, supplies, supervision and transportation and perform all of the work required AS SHOWN ON THE PLANS AND SPECIFICATIONS.

1.3 STORAGE OF MATERIALS

A. The Contractor may store materials and equipment at the work site at his own risk. All materials must be kept in an area approved by the CO and be neat and orderly.

1.4 EXISTING FACILITIES

A. Sanitary facilities are available at specific sites as follows:

a. Ocoee Ranger Station: public restrooms, M-F, 8:00 AM to 4:30 PM

b. Parksville Beach: vault toilet, Open April - October, 7:00 AM to 10:00 PM

c. Parksville Boat Ramp: vault toilet, Open March - November, 7:00 AM to 10:00 PM

d. East Parksville Boat Ramp: vault toilet, Open March - November, 7:00 AM to 10:00 PM

e. Ocoee Whitewater Center: public restrooms, M-F, 8:00 AM to 4:30 PM

B. There is no secondary electrical service at the project sites.

C. Potable water is available at specific sites as follows:

a. Ocoee Ranger Station: potable water at building.

b. Parksville Beach: no potable water available

c. Parksville Boat Ramp: no potable water available

d. East Parksville Boat Ramp: no potable water available

e. Ocoee Whitewater Center: potable water at building

1.5 SAFETY

A. No trenches shall be left open overnight.

B. Construction fencing shall be used to limit access to the construction areas by the general public. NOTE: Sites are highly visible & receive a large number of visitors.

1.6 CONSTRUCTION SCHEDULING

A. A proposed schedule of work for the project construction shall be submitted to the COR for approval 10 days prior to starting construction.

B. Work Hours: Monday through Thursday 7:00 AM - 4:30 PM, Friday 7:00 AM - 2:00 PM. Work hours are limited due to high visitor usage during recreation season.

SECTION 01270

MEASUREMENT AND PAYMENT

1.1 DETERMINATION OF QUANTITIES

A. For individual construction items, all longitudinal and lateral measurements for area computations shall be made horizontally or corrected to horizontal measurement unless otherwise specified.

B. Measurements for items such as seeding, mulching, erosion control blankets, and sodding will be along slope lines.

C. Structures will be measured according to neat lines SHOWN ON THE PLANS or as altered by the COR in writing to fit field conditions.

D. For vehicular shipments, net certified scale weights or batch tickets will be used as a basis of measurement.

1.2 UNITS OF MEASUREMENT

A. Payment will be by units defined and determined according to the U.S. Standard measure and by following:

1. Cubic Yard (CY). Measurements computed by the average end area method from measurements made longitudinally along a centerline or reference line.

2. Square Foot (SF). Field measurement of the exposed face of material being measured.

3. Each. One complete unit, which may consist of one or more parts.

4. Square Yard (SY).

5. Linear Foot (LF). For items such as pipe culverts, fencing, guardrail, concrete curb & gutter, and underdrains, measurement will be made parallel to the base or foundation upon which the structure is to be placed. Pipe shall be measured along center of invert.

1.3 METHODS OF MEASUREMENT

A. One of the following methods of measurement for determining the final payment is designated in the contract for each Pay Item.

1. Contract Quantities (CQ). These quantities denote the final number or units to be paid for under the terms of the contract. They are based upon original design data available prior to advertising the project. This data includes the preliminary survey information, drawings, design assumptions, calculations and presentation in the contract.

Authorization for changes in the number of units SHOWN in the contract may be given under any of the following conditions:

a. As a result of changes in the work authorized by the Contracting Officer.

b. As a result of the Contracting Officer determining that errors exist in the original design that may cause a Pay

Item quantity to change by 15% or more.

c. As a result of the Contractor submitting a written request showing evidence of errors in the original design that cause a Pay Item quantity to change by 15% or more. The evidence must be verifiable and consist of calculations, drawings and/or other data that shows how the designed quantity is believed to be in error.

2. Actual Quantity (AQ). These quantities are determined from measurements of completed work.

3. Vehicular Quantities (VQ). These quantities are measured or weighed in hauling vehicles.

4. Lump Sum Quantities (LS). These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor needed to complete the job. They will not be measured.

SECTION 01330

SUBMITTALS

1.1 REQUIREMENTS INCLUDED

A. Procedures

B. Manufacturers Instructions

C. Manufacturers Certificates

1.2 PROCEDURES

A. Submittals shall be furnished before fabrication or installation occurs. All submittals shall be evaluated and either approved or rejected by the COR within 14 days after their receipt. A minimum of two (2) copies of submittals shall be supplied to the COR.

B. If the Contractor intends to provide or install an item that is an "or equal" or differs from that which is specified or shown on the drawings, he/she shall submit all product data, revised drawings or new drawings to the COR. for approval.

C. The contractor shall submit two (2) sets of the manufacturer's description of all "or equals" proposed in lieu of name brands specified. This description shall include:

1. Product name and model number

2. Manufacturer

3. Product description

4. Technical data

1.3 MANUFACTURER’S INSTRUCTIONS

A. The Contractor shall provide three (3) copies of all of the manufacturers installation and maintenance instructions

(written and/or drawings) to the COR.

1.4 MANUFACTURER’S CERTIFICATES

A. The Contractor shall provide all guarantees, certificates of performance, material of workmanship or warranties provided by the manufacturer or required by the specifications to the COR.

SECTION 02220

SELECTIVE DEMOLITION

1.1 WORK INCLUDED

A. This work shall consist of the removal and satisfactory disposal of buildings, excess gravel, excavation, concrete & asphalt sidewalks, timber curbing, timber retaining walls, and other items as shown on the drawings and specified herein.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.1 REMOVAL OF STRUCTURES

A. The Contractor shall execute all demolition work in a way not to damage adjacent facilities designated to remain.

3.2 DISPOSAL

A. Debris shall be disposed of legally off government lands.

SECTION 02315

SITE PREPARATION

PART 1 - GENERAL

A. This section includes construction staking, excavation, backfill, and placement of interior and exterior fills and the final dressing of the site within the construction area.

PART 2 - PRODUCTS

2.1 FILL MATERIAL

A. The material for the interior and exterior fills shall consist of surplus excavated material or imported fill consisting of a mixture of soil, gravel talus rock, disintegrated granite, semi-gravel, sand, caliche, shale, scoria, clinkers, cinders, or other suitable material.

B. The material shall be free from organic vegetative matter.

C. The maximum size of any particle shall not be greater than 2" in diameter.

D. Oversize material may either be removed or broken down to the specified dimension by any method which accomplishes reduction to that size.

E. The removal or the breakdown of oversize material to the specified size shall be done at the material source.

PART 3 - EXECUTION

3.1 CONSTRUCTION STAKING

A. The locations of all proposed new work relative to existing features will be indicated on the construction drawings.

B. Construction staking shall be the responsibility of the contractor. Staking for any part of the work shall be approved by the COR prior to commencing construction on that part.

3.2 EXCAVATION

A. Identify and mark all utilities in the project vicinity.

B. Excavation shall produce surfaces to line and grade shown on drawings. All excavated areas shall drain.

C. The root structure of trees designated to remain shall not be disturbed.

D. The Contractor shall notify the COR of unexpected subsurface conditions and discontinue affected work in the area until notified to resume work.

E. All excavation shall conform to OSHA requirements.

3.3 EMBANKMENT

A. The contractor shall supply all fill material.

B. Fill shall be compacted in maximum 8" lifts. Fill shall be at moisture content suitable for obtaining the required compaction.

3.4 TOPSOIL

A. Contractor shall remove & stockpile topsoil from areas to be further excavated, re-landscaped or re-graded.

Topsoil shall not be removed when wet.

B. Topsoil shall be stockpiled at a location approved by the COR and at a height not to exceed 8 feet. Silt fence shall surround the stockpile areas.

3.5 COMPACTION

A. Place fill and embankment material in successive layers of 8 inches or less in thickness before compaction, each layer being approximately horizontal and extending to full width of required cross section and compact at optimum water content over entire surface until visual displacement ceases.

B. Surfaces under slabs-on-grade shall be proof rolled.

3.6 FINISHING

A. All slopes shall be rounded.

B. When all exterior earthwork is complete, the contractor shall give the entire site a final dressing to assure that all surfaces are in accordance with the elevations indicated on the drawings

SECTION 02370

EROSION AND SEDIMENTATION CONTROL

PART 1 – GENERAL

A. This work consists of temporary and permanent measures to prevent and control soil erosion and sedimentation.

PART 2 – PRODUCTS

2.1 SILT FENCE

A. Silt fence shall be prefabricated with 1-1/2" square, hardwood posts, Mirafi Silt Fence, or approved equal.

PART 3 – EXECUTION

3.1 INSTALLATION

A. All erosion control devices shall be installed prior to commencing clearing & grubbing operations.

B. Install silt fence on contour down slope from areas to be disturbed.

C. Install silt fence in accordance with manufacturer’s instructions. Caution shall be used when installing along streams and creeks. Install at locations as shown on plans; additional locations as directed by the COR.

3.2 MONITORING

A. The Contractor shall monitor the performance of all erosion and sediment control practices and make minor adjustments as needed on a day-to-day basis. Silt fences shall be inspected after each rainfall and sediment deposits must be removed when they reach a maximum of 1/3 the height of the fence. Deteriorated or damaged fabrics must be replaced immediately.

B. Temporary controls shall be dismantled and disposed of after the disturbed soil has been re-vegetated.

SECTION 02920

SEEDING & MULCHING

PART 1 – GENERAL

A. This section covers the seeding and mulching of all areas of disturbance within the construction area. Work shall include application of fertilizer, lime, seed and mulch.

PART 2 – PRODUCTS

2.1 SEED

A. Seeding mix shall be:

Species Rate (lb/acre)

Orchard Grass: 5.0

Annual Rye: 5.0

2.2 MULCH

A. Mulch shall be grain straw applied at the rate of 1000 lbs. per acre.

2.3 FERTILIZER

A. Fertilizer shall be a 10-10-10 mix applied at the rate of 1000 lbs per acre.

2.4 LIME

A. Ground agricultural lime shall be applied at the rate of 2000 lbs/acre.

PART 3 – EXECUTION

3.1 APPLICATION

A. Seeding operations shall be carried out in a timely manner following any and all backfill completion as directed by the COR.

B. All disturbed areas to be seeded shall be graded, leveled, and roughened to receive the grass seed.

C. Lime & fertilizer shall be evenly spread and incorporated into the top 4-6” of soil by disking or other suitable means.

D. Seed shall be uniformly sown over the area at the rate specified by means of a drop-type spreader, drill, cultipacker seeder or hydroseeder.

E. Secure mulch in place by staking and tying or by spraying with binder. Apply binder at the rate of 6 to 10 gallons per 1,000 square feet.

SECTION 03300

CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. This Section specifies cast-in place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes.

1.2 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Design Mixtures: For each concrete mixture.

1.3 QUALITY ASSURANCE

A. Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.

1. ACI 301, "Specification for Structural Concrete," Sections 1 through 5.

2. ACI 302.1R, “Guide for Concrete Floor and Slab Construction.”

3. ACI 305R, “Hot Weather Concreting.”

4. ACI 306R - Cold Weather Concreting.”

5. ACI 308R, “Guide to Curing Concrete.”

6. ACI 117, "Specifications for Tolerances for Concrete Construction and Materials."

B. Pre-installation Conference: Schedule conference (form and reinforcement inspection) with COR 24 hours prior to placing concrete.

PART 2 - PRODUCTS

2.1 FORM-FACING MATERIALS

A. Rough-Formed Finished Concrete: Plywood, lumber, metal, or another approved material. Provide lumber dressed on at least two edges and one side for tight fit.

2.2 STEEL REINFORCEMENT

A. Reinforcing Bars: ASTM A 615/A 615M, Grade 60, deformed.

B. Plain-Steel Welded Wire Reinforcement: ASTM A 185, plain, fabricated from as-drawn steel wire into flat sheets.

C. Deformed-Steel Welded Wire Reinforcement: ASTM A 497, flat sheet.

D. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire reinforcement in place. Manufacture bar supports from steel wire, plastic, or precast concrete according to CRSI's "Manual of Standard Practice."

2.3 CONCRETE MATERIALS

A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and source, throughout

Project:

1. Portland Cement: ASTM C 150, Type I

B. Normal-Weight Aggregates: ASTM C 33, graded, 1-inch nominal maximum coarse-aggregate size.

1. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

C. Water: ASTM C 94/C 94M and potable.

2.4 CURING MATERIALS

A. Evaporation Retarder: Waterborne, monomolecular film forming, manufactured for application to fresh concrete.

B. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or kenaf, weighing approximately 9 oz./sq. yd. when dry.

C. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.

D. Water: Potable.

E. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, dissipating.

2.5 RELATED MATERIALS

A. Expansion- and Isolation-Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber or ASTM D 1752, cork or self-expanding cork.

2.6 CONCRETE MIXTURES

A. Prepare design mixtures for each type and strength of concrete, proportioned on the basis of laboratory trial mixture or field test data, or both, according to ACI 301.

B. Proportion normal-weight concrete mixture as follows:

1. Minimum Compressive Strength: 4000 psi at 28 days.

2. Maximum Water-Cementitious Materials Ratio: 0.45.

3. Slump Limit: 5 inches, plus or minus 1 inch.

4. Air Content: 6 percent, plus or minus 1.5 percent at point of delivery for 1-inch nominal maximum aggregate size.

5. Synthetic Fiber: Uniformly disperse in concrete mixture at manufacturer's recommended rate, but not less than 1.0 lb/cu. yd.

2.7 FABRICATING REINFORCEMENT

A. Fabricate steel reinforcement according to CRSI's "Manual of Standard Practice."

2.8 CONCRETE MIXING

A. Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to ASTM C 94/C 94M and

ASTM C 1116, and furnish batch ticket information.

1. When air temperature is between 85 and 90 deg F, reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F, reduce mixing and delivery time to 60 minutes.

PART 3 - EXECUTION

3.1 STEEL REINFORCEMENT

A. General: Comply with CRSI's "Manual of Standard Practice" for placing reinforcement.

3.2 CONCRETE PLACEMENT

A. Before placing concrete, verify that installation of formwork, reinforcement, and embedded items is complete and that required inspections have been performed.

B. Deposit concrete continuously in one layer or in horizontal layers of such thickness that no new concrete will be placed on concrete that has hardened enough to cause seams or planes of weakness. If a section cannot be placed continuously, provide construction joints as indicated. Deposit concrete to avoid segregation.

1. Consolidate placed concrete with mechanical vibrating equipment according to ACI 301.

C. Cold-Weather Placement: Comply with ACI 306.

D. Hot-Weather Placement: Comply with ACI 305.

3.3 CONCRETE PROTECTING AND CURING

A. General: Protect freshly placed concrete from premature drying and excessive cold or hot temperatures. Comply with ACI 306.1 for cold-weather protection and ACI 305 for hot-weather protection during curing.

B. Evaporation Retarder: Apply evaporation retarder to unformed concrete surfaces if hot, dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h before and during finishing operations. Apply according to manufacturer's written instructions after placing, screeding, and bull floating or darbying concrete, but before float finishing.

C. Cure concrete according to ACI 308.1, by one or a combination of the following methods:

1. Moisture Curing: Keep surfaces continuously moist for not less than seven days.

2. Moisture-Retaining-Cover Curing: Cover concrete surfaces with moisture-retaining cover for curing concrete, placed in widest practicable width, with sides and ends lapped at least 12 inches, and sealed by waterproof tape or adhesive. Cure for not less than seven days. Immediately repair any holes or tears during curing period using cover material and waterproof tape.

3. Curing Compound: Apply uniformly in continuous operation by power spray or roller according to manufacturer's written instructions. Recoat areas subjected to heavy rainfall within three hours after initial application. Maintain continuity of coating and repair damage during curing period.

3.4 CONCRETE SURFACE REPAIRS

A. Defective Concrete: Repair and patch defective areas when approved by CO. Remove and replace concrete that cannot be repaired and patched to CO’s approval.

3.5 FIELD QUALITY CONTROL

A. Testing and Inspecting: Contractor will engage a qualified independent testing and inspecting agency to perform field tests and inspections and prepare test reports.

1. Testing Services: Tests shall be performed according to ACI 301.

END OF SECTION

SECTION 04810

CONCRETE UNIT MASONRY

PART 4 - GENERAL

4.1 SECTION INCLUDES

A. Section includes:

1. Concrete masonry units (CMUs).

2. Reinforcement.

3. Grout.

4.2 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Material Certificates: For each type of product indicated. Include statements of material properties indicating compliance with requirements including compliance with standards and type designations within standards.

C. Mix Designs: For each type of mortar. Include description of type and proportions of ingredients.

4.3 PROJECT CONDITIONS

A. Cold-Weather Requirements: Do not use frozen materials or materials mixed or coated with ice or frost. Do not build on frozen substrates. Remove and replace unit masonry damaged by frost or by freezing conditions.

Comply with cold-weather construction requirements contained in ACI 530.1/ASCE 6/TMS 602.

B. Hot-Weather Requirements: Comply with hot-weather construction requirements contained in

ACI 530.1/ASCE 6/TMS 602.

PART 5 - PRODUCTS

5.1 CONCRETE MASONRY UNITS (CMUs)

A. Concrete Masonry Units: ASTM C 90.

1. Unit Compressive Strength: Provide units with minimum average net-area compressive strength of 1900 psi.

2. Weight Classification: Normal weight.

3. Size: Standard units with nominal face dimensions of 16 x 8 inches and nominal depths as indicated on the drawings for specific locations.

5.2 MORTAR MATERIALS

A. Portland Cement: ASTM C 150, Type I or II, except Type III may be used for cold-weather construction.

B. Hydrated Lime: ASTM C 207, Type S.

C. Aggregate for Mortar: ASTM C 144.

1. For joints less than 1/4 inch (6.5 mm) thick, use aggregate graded with 100 percent passing the No. 16 sieve.

D. Water: Potable.

5.3 REINFORCEMENT

A. Uncoated Steel Reinforcing Bars: ASTM A 615/A 615M or ASTM A 996/A 996M, Grade 60.

B. Wall Ties: 3/16 inch diameter metal wire wall tie.

5.4 MORTAR MIXES

A. General: Do not use admixtures, unless otherwise indicated.

1. Do not use calcium chloride in mortar or grout.

2. Limit cementitious materials in mortar for exterior and reinforced masonry to portland cement and lime.

3. Add cold-weather admixture (if used) at same rate for all mortar that will be exposed to view, regardless of weather conditions, to ensure that mortar color is consistent.

B. Mortar for Unit Masonry: Comply with ASTM C 270, Property Specification.

1. For masonry below grade or in contact with earth, use Type M.

2. For reinforced masonry, use Type N.

PART 6 - EXECUTION

6.1 INSTALLATION, GENERAL

A. Use full-size units without cutting if possible. If cutting is required, cut units with motor-driven saws; provide clean, sharp, unchipped edges. Allow units to dry before laying unless wetting of units is specified. Install cut units with cut surfaces and, where possible, cut edges concealed.

6.2 LAYING MASONRY WALLS

A. Lay out walls in advance for accurate spacing of surface bond patterns with uniform joint thicknesses and for accurate location of openings, movement-type joints, returns, and offsets. Avoid using less-than-half-size units, particularly at corners, jambs, and, where possible, at other locations.

B. Built-in Work: As construction progresses, build in items specified in this and other Sections. Fill in solidly with masonry around built-in items. Install wall ties at a maximum vertical spacing of 24 inches and maximum horizontal spacing of 36 inches.

C. Fill cores in hollow concrete masonry units with grout under bearing plates, beams, lintels, posts, and similar items, unless otherwise indicated.

D. Bond: Running.

E. Coursing: One unit and one mortar joint to equal 8 inches.

F. Mortar Joints: Concave.

6.3 MORTAR BEDDING AND JOINTING

A. Lay hollow concrete masonry units as follows:

1. With face shells fully bedded in mortar and with head joints of depth equal to bed joints.

2. With webs fully bedded in mortar in all courses of piers, columns, and pilasters.

3. With webs fully bedded in mortar in grouted masonry, including starting course on footings.

4. With entire units, including areas under cells, fully bedded in mortar at starting course on footings where cells are not grouted.

B. Cut joints flush for masonry walls to receive plaster or other direct-applied finishes (other than paint), unless otherwise indicated.

6.4 MASONRY JOINT REINFORCEMENT

A. General: Install in mortar with a minimum cover of 5/8 inch on exterior side of walls, 1/2 inch elsewhere. Lap reinforcement a minimum of 6 inches.

6.5 REINFORCED UNIT MASONRY INSTALLATION

A. Placing Reinforcement: Comply with requirements in ACI 530.1/ASCE 6/TMS 602.

6.6 TOLERANCES

A. Maximum Variation from Unit to Adjacent Unit: 1/16 inch.

B. Maximum Variation from Plane of Wall: 1/4 inch in 10 ft and 1/2 inch in 20 ft or more.

C. Maximum Variation from Plumb: 1/4 inch per story non-cumulative;

D. Maximum Variation from Level Coursing: 1/8 inch in 3 ft and 1/4 inch in 10 ft; 1/2 inch in 30 ft.

E. Maximum Variation of Joint Thickness: 1/8 inch in 3 ft.

F. Maximum Variation from Cross Sectional Thickness of Walls: 1/4 inch.

6.7 FIELD QUALITY CONTROL

A. Concrete Masonry Unit Test: For each type of unit provided, per ASTM C 140.

6.8 MASONRY WASTE DISPOSAL

A. Waste Disposal as Fill Material: Dispose of clean masonry waste, including excess or soil-contaminated sand, waste mortar, and broken masonry units, by crushing and mixing with fill material as fill is placed.

1. Do not dispose of masonry waste as fill within 18 inches of finished grade.

2. Remove excess clean masonry waste that cannot be used as fill, as described above, and other masonry waste, and legally dispose of off USFS property.

SECTION 04860

STONE MASONRY

PART 7 - GENERAL

7.1 SECTION INCLUDES

A. Section includes:

1. Exterior adhered stone masonry.

7.2 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Samples:

1. For each stone type indicated.

2. 4'x4' mock-up panel.

7.3 PROJECT CONDITIONS

A. Protection of Stone Masonry: During construction, cover tops of walls, projections, and sills with waterproof sheeting at end of each day's work.

B. Cold-Weather Requirements: Do not use frozen materials or materials mixed or coated with ice or frost. Do not build on frozen substrates. Comply with cold-weather construction requirements contained in

ACI 530.1/ASCE 6/TMS 602.

1. Cold-Weather Cleaning: Use liquid cleaning methods only when air temperature is 40 deg F and above and will remain so until masonry has dried.

C. Hot-Weather Requirements: Comply with hot-weather construction requirements contained in

ACI 530.1/ASCE 6/TMS 602.

PART 8 - PRODUCTS

8.1 NATURAL STONE

A. Provide quarried natural stone as follows:

1. Basis of Design Products: Virgil Reed Stone, 7139 Wassom Memorial Hwy, Grandview, TN 37337

423-365-9542.

2. Type: Sandstone Stacked Mountain Stone to produce a finished face consisting of 1/3 Thick Stack, 1/3

Medium Stack, 1/3 Thin Stack.

8.2 MISCELLANEOUS MASONRY ACCESSORIES

A. Cementitious Dampproofing: Cementitious formulations that are recommended by ILI and that are non-staining to stone, compatible with joint sealants, and noncorrosive to veneer anchors and attachments.

8.3 MASONRY CLEANERS

A. Proprietary Acidic Cleaner: Manufacturer's standard-strength cleaner designed for removing mortar and grout stains, efflorescence, and other new construction stains from stone masonry surfaces without discoloring or damaging masonry surfaces; expressly approved for intended use by cleaner manufacturer and stone producer.

8.4 FABRICATION

A. Select stone to produce pieces of thickness, size, and shape indicated, including details on Drawings. Dress joints

(bed and vertical) straight and at right angle to face unless otherwise indicated.

B. Gage backs of stones for adhered veneer if more than 81 sq. in. in area.

C. Shape stone for type of masonry (pattern) as follows:

1. Sawed-bed, broken-range ashlar with uniform course heights as indicated on Drawings and with random lengths.

D. Finish exposed faces and edges of stone to comply with requirements indicated for finish and to match approved samples and mockups.

1. Finish: Dry stack consisting of 1/3 Thick Stack, 1/3 Medium Stack, 1/3 Thin Stack. See attached photograph(s) for example.

PART 9 - EXECUTION

9.1 PREPARATION

A. Accurately mark stud centerlines on face of weather-resistant sheathing paper before beginning stone installation.

9.2 SETTING OF STONE MASONRY, GENERAL

A. Perform necessary field cutting and trimming as stone is set.

1. Use hammer and chisel to split stone that is fabricated with split surfaces.

B. Sort stone before it is placed in wall to remove stone that does not comply with requirements relating to aesthetic effects, physical properties, or fabrication or that is otherwise unsuitable for intended use.

C. Arrange stones with color and size variations uniformly dispersed for an evenly blended appearance.

D. Maintain uniform joint widths except for variations due to different stone sizes and where minor variations are required to maintain bond alignment if any. Lay walls with joints not less than 3/8 inch at narrowest points or more than 1 inch at widest points.

9.3 CONSTRUCTION TOLERANCES

A. Variation from Plumb: For vertical lines and surfaces, do not exceed 1/2 inch in 10 feet. For external corners, expansion joints, control joints, and other conspicuous lines, do not exceed 1/2 inch in 20 feet.

B. Variation from Level: For lines of exposed lintels, sills, parapets, horizontal grooves, and other conspicuous lines, do not exceed 1/2 inch in 20 feet.

C. Variation of Linear Structure Line: For position shown in plan, do not exceed 1/2 inch in 20 feet.

9.4 ADJUSTING AND CLEANING

A. In-Progress Cleaning: Clean stone masonry as work progresses. Remove mortar fins and smears before tooling joints.

B. Final Cleaning: After mortar is thoroughly set and cured, clean stone masonry as follows:

1. Remove large mortar particles by hand with wooden paddles and nonmetallic scrape hoes or chisels.

2. Test cleaning methods on mockup; leave one-half of panel uncleaned for comparison purposes.

3. Protect adjacent stone and nonmasonry surfaces from contact with cleaner by covering them with liquid strippable masking agent, polyethylene film, or waterproof masking tape.

4. Wet wall surfaces with water before applying cleaner; remove cleaner promptly by rinsing thoroughly with clear water.

5. Clean stone masonry by bucket and brush hand-cleaning method described in BIA Technical Note No. 20

Revised II, using job-mixed detergent solution.

6. Clean stone masonry with proprietary acidic cleaner applied according to manufacturer's written instructions.

9.5 EXCESS MATERIALS AND WASTE

A. Disposal as Fill Material: Dispose of clean masonry waste, including mortar and excess or soil-contaminated sand, by crushing and mixing with fill material as fill is placed.

1. Do not dispose of masonry waste as fill within 18 inches of finished grade.