2. FS Supplemental Specifications.pdf

El Cariso CG Concrete Pads

CONCRETE FORMING Section 03 11 00-1

SECTION 03 11 00 - CONCRETE FORMING

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Formwork for cast-in place concrete, with shoring, bracing and anchorage.

B. Openings for other work.

C. Form accessories.

D. Form stripping.

1.2 RELATED SECTIONS

A. Section 03 30 00 - Cast-in-Place Concrete.

1.3 REFERENCES

A. ACI 301 - Structural Concrete for Buildings.

B. ACI 318 - Building Code Requirements for Reinforced Concrete.

C. ACI 347 - Recommended Practice For Concrete Formwork.

D. PS 1 - Construction and Industrial Plywood.

1.4 DESIGN REQUIREMENTS

A. Design, engineer and construct formwork, shoring and bracing to conform to code requirements; resultant concrete to conform to required shape, line and dimension.

1.5 QUALITY ASSURANCE

A. Perform work in accordance with ACI 347 and 301 standards.

1.6 MEASUREMENT AND PAYMENT

A. No separate measurement or payment will be made for work specified in this section.

PART 2 - PRODUCTS

2.1 WOOD FORM MATERIALS

A. Forms shall be smooth, clean, mortar tight and have sufficient strength to resist deflection under the

CONCRETE FORMING Section 03 11 00-2 loads imposed by the concrete Plywood shall be provided in the largest practical sizes to minimize joints. Plywood: U.S. Product Standard PS 1 (for Softwood Plywood, Construction and Industrial), grade-stamped, "B-B Ply form" Class II Ext. DFPA for concealed surfaces, "HDO-Ext" for exposed-to-view faces or faces to be painted, 3/4-inch thick. Furnish in largest practicable sizes to minimize number of joints. Douglas Fir species; medium density overlaid one side; sound undamaged sheets with clean, true edges or any lumbers of sufficient strength to hold the concrete in place.

A. Lumber: Douglas Fir species; Number 2 grade; with grade stamp clearly visible.

2.2 FORMWORK ACCESSORIES

A. Form Ties: Snap-off type, galvanized metal, fixed length, cone type, 1 inch back break dimension, free of defects that could leave holes larger than 1 inch in concrete surface.

B. Form Release Agent: Colorless mineral oil which will not stain concrete, or absorb moisture.

C. Corners: Chamfered, wood strip type; 3/4 x 3/4 inch size; maximum possible lengths.

D. Nails, Spikes, Lag Bolts, Through Bolts, Anchorages: Sized as required, of sufficient strength and character to maintain formwork in place while placing concrete.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify lines, levels and centers before proceeding with formwork. Ensure that dimensions agree with drawings.

3.2 EARTH FORMS

A. Hand trim sides and bottom of earth forms. Remove loose soil prior to placing concrete.

3.3 ERECTION - FORMWORK

A. Erect formwork, shoring and bracing to achieve design requirements, in accordance with requirements of ACI 301.

B. Provide bracing to ensure stability of formwork. Shore or strengthen formwork subject to overstressing by construction loads.

C. Arrange and assemble formwork to permit dismantling and stripping. Do not damage concrete during stripping. Permit removal of remaining principal shores.

D. Align joints and make watertight. Keep form joints to a minimum.

E. Obtain approval before framing openings in structural members which are not indicated on Drawings.

F. Provide chamfer strips on external corners of walls.

CONCRETE FORMING Section 03 11 00-3

G. Coordinate this section with other sections of work which require attachment of components to formwork.

H. If formwork is placed after reinforcement resulting in insufficient concrete cover over reinforcement before proceeding, request instructions from Contracting Officer.

3.4 APPLICATION - FORM RELEASE AGENT

A. Apply form release agent on formwork in accordance with manufacturer's recommendations.

B. Apply prior to placement of reinforcing steel, anchoring devices, and embedded items.

C. Do not apply form release agent where concrete surfaces will receive applied coverings which are affected by agent. Soak inside surfaces of untreated forms with clean water. Keep surfaces coated prior to placement of concrete.

3.5 INSERTS, EMBEDDED PARTS, AND OPENINGS

A. Provide formed openings where required for items to be embedded in passing through concrete work.

B. Locate and set in place items which will be cast directly into concrete.

C. Coordinate with work of other sections in forming and placing openings, slots, sleeves, bolts, anchors, other inserts, and components of other Work.

D. Provide temporary ports or openings in formwork where required to facilitate cleaning and inspection. Locate openings at bottom of forms to allow flushing water to drain.

E. Close temporary openings with tight fitting panels, flush with inside face of forms, and neatly fitted so joints will not be apparent in exposed concrete surfaces.

3.6 FORM CLEANING

A. Clean forms as erection proceeds, to remove foreign matter within forms.

B. Clean formed cavities of debris prior to placing concrete.

D. Flush with water or use compressed air to remove remaining foreign matter. Ensure that water and debris drain to exterior through clean-out ports.

E. During cold weather, remove ice and snow from within forms. Do not use de-icing salts. Do not use water to clean out forms, unless formwork and concrete construction proceed within heated enclosure.

Use compressed air or other means to remove foreign matter.

3.7 FORMWORK TOLERANCES

CONCRETE FORMING Section 03 11 00-4

A. Construct formwork to maintain tolerances required by ACI 301.

3.8 FIELD QUALITY CONTROL

A. Section 01 40 00, Quality Requirements: Field inspection.

B. Inspect erected formwork, shoring, and bracing to ensure that work is in accordance with formwork design, and that supports, fastenings, wedges, ties, and items are secure.

C. Do not reuse wood formwork more than 2 times for concrete surfaces to be exposed to view. Do not patch formwork.

3.9 FORM REMOVAL

A. Do not remove forms or bracing until concrete has gained sufficient strength to carry its own weight and imposed loads.

B. Loosen forms carefully. Do not wedge pry bars, hammers, or tools against finish concrete surfaces scheduled for exposure to view.

C. Store removed forms in manner that surfaces to be in contact with fresh concrete will not be damaged.

Discard damaged forms.

END OF SECTION 03 11 00

Section 03 20 00-1 CONCRETE REINFORCEMENT

SECTION 03 20 00 - CONCRETE REINFORCEMENT

A. Reinforcing steel bars, wire fabric and accessories for cast-in-place concrete.

A. Section 03100 - Concrete Formwork.

B. Section 03300 - Cast-in-Place Concrete.

A. ACI 30 - Structural Concrete for Buildings.

B. ACI 318 - Building Code Requirements For Reinforced Concrete.

C. ACI SP-66 - American Concrete Institute – Detailing Manual.

D. ASTM A82 - Cold Drawn Steel Wire for Concrete Reinforcement.

E. ASTM A185 - Welded Steel Wire Fabric for Concrete Reinforcement.

F. ASTM A615 - Deformed and Plain Billet Steel Bars for Concrete Reinforcement.

G. AWS D 1.4 - Structural Welding Code for Reinforcing Steel.

H. CRSI - Concrete Reinforcing Steel Institute – Manual of Practice.

I. CRSI 63 – Recommended Practice For Placing Reinforcing Bars.

J. CRSI 65 – Recommended Practice For Placing Bar Supports, Specifications and Nomenclature.

1.4 SUBMITTALS FOR REVIEW

A. Section 01300 – Submittals: Procedures for submittals.

B. Shop Drawings: Indicate bar sizes, spacing, locations, and quantities of reinforcing steel, Bending and cutting schedules, and supporting.

1.5 SUBMITTALS FOR INFORMATION

A. Section 01300 – Submittals: Procedures for submittals.

Section 03 20 00-2 CONCRETE REINFORCEMENT

B. Manufacturer’s Certificate: Certify that products meet or exceed specified requirements.

C. Submit certified copies of mill report or reinforcement materials analysis.

1.6 QUALITY ASSURANCE

A. Perform Work in accordance with ACI 301 and ACI SP-66.

1.7 MEASUREMENT AND PAYMENT

A. No separate measurement or payment will be made for work specified in this section.

PART 2 - PRODUCTS

2.1 REINFORCEMENT

A. Reinforcing Steel: ASTM A615, 60 ksi yield grade; deformed billet steel bars.

2.2 ACCESSORIES

A. Tie Wire Minimum 16.

B. Chairs, Bolsters, Bar Supports, Spacers: Sized and shaped for strength and support of reinforcement during concrete placement conditions including load bearing pad on bottom to prevent vapor barrier puncture.

C. Special Chairs, Bolsters, Bar Supports, Spacers Adjacent to Weather Exposed Concrete

Surfaces: Stainless steel type; size and shape as required.

2.3 FABRICATION

A. Fabricate concrete reinforcing in accordance with ACI SP-66.

B. Locate reinforcing splices not indicated on drawings, at point of minimum stress. Review location of splices with Contracting Officer.

3.1 PLACEMENT

A. Place, support and secure reinforcement against displacement. Do not deviate from required position.

B. Do not displace or damage vapor barrier.

C. Accommodate placement of formed openings.

Section 03 20 00-3 CONCRETE REINFORCEMENT

D. Maintain concrete cover around reinforcing as follows:

Item: Coverage:

Footings and Concrete Formed Against Earth 3 inch Slabs on Grade 3 inch

3.2 FIELD QUALITY CONTROL

A. Section 01400 - Quality Control: Field inspection.

B. Inspect for acceptability.

END OF SECTION 03 20 00

CAST-IN-PLACE CONCRETE Section 03 30 00-1

SECTION 03 30 00 – CAST–IN-PLACE CONCRETE

A. This section includes reinforced concrete and replacement of reinforced concrete. The work includes preparation of surfaces, mixing, placement, and finishing of concrete.

A. Section 31 20 00 – Earth Moving.

B. Section 03 11 00 - Concrete Forming.

C. Section 03 20 00 – Concrete Reinforcement

A. ACI 211.1 - Selecting Proportions for Normal, Heavyweight, and Mass Concrete.

B. ACI 301 - Structural Concrete for Buildings.

C. ACI 302 - Guide for Concrete Floor and Slab Construction.

D. ACI 304 - Recommended Practice for Measuring, Mixing, Transporting and Placing Concrete.

E. ACI 305R - Hot Weather Concreting.

F. ACI 306R - Cold Weather Concreting.

G. ACI 308 - Standard Practice for Curing Concrete.

H. ACI 318 - Building Code Requirements for Reinforced Concrete.

I. ASTM C33 - Concrete Aggregates.

J. ASTM C94 - Ready-Mixed Concrete.

K. ASTM C150 - Portland Cement.

L. ASTM C260 - Air Entraining Admixtures for Concrete.

M. ASTM C494 - Chemical Admixtures for Concrete.

N. ASTM D994 - Preformed Expansion Joint Filler for Concrete (Bituminous Type).

CAST-IN-PLACE CONCRETE Section 03 30 00-2

O. ASTM D1190 - Concrete Joint Sealer, Hot-Poured Elastic Type.

P. ASTM C231 – Air Content of Freshly Mixed Concrete by the Pressure Method.

Q. ASTM C1116 – Standard Specification for Fiber Reinforced Concrete and Shotcrete.

1.4 SUBMITTALS

A. Section 01 33 00 – Shop Drawings, Product Data and Samples: Procedures for submittals.

B. Product Data: Provide data on joint devices, admixtures, fiber, sealants, curing compounds, color and joint material.

C. Material Certificates: Provide material certificates signed by manufacturer certifying that each material item complies with, or exceeds, specified requirements. Provide certification from admixture manufacturers that chloride content complies with specification requirements.

D. Mix Design: Provide concrete mix design from manufacturer for review and approval as specified in paragraph 2.1 herein.

E. Batch Tickets: Upon delivery to the site, provide job tickets for each load delivered. Tickets shall show the date and time of batching, and type and quantity of each cement type and content, water content, any water added, aggregate weight, all additives and the moisture in the aggregates. Tickets shall be verified before any material is placed.

1.5 QUALITY ASSURANCE

A. See Section 01 40 00, Quality Requirements, and as shown herein.

B. Concrete Testing Service: Engage an independent testing laboratory acceptable to Contracting Officer to perform material evaluation tests including preparing and testing concrete cylinders and beams, conducting slump tests, temperature tests, and conducting air entrainment tests.

C. Materials and installed work shall require testing at any time during progress of work. Tests, including retesting of rejected materials for installed work, shall be done at Contractor’s expense.

D. Acquire cement and aggregate from same source for all work.

1.6 MEASUREMENT AND PAYMENT

A. Measurement and payment for work performed under this Section will be made under those pay items as listed in the Schedule of Items and will constitute full compensation for all materials, labor, equipment, testing, and incidentals necessary to complete the work as specified herein and AS

SHOWN ON THE DRAWINGS.

PART 2 – PRODUCTS

CAST-IN-PLACE CONCRETE Section 03 30 00-3

2.1 CONCRETE MATERIALS

A. Prepare design mixes for each type and strength of concrete in accordance with IBC, Chapter 19.

1. All design mixes shall be certified by a registered Civil Engineer licensed to practice in the State of California.

2. Mix designs shall be accompanied by slump test, as well as compression test reports. Ensure that mix design and aggregate quality tests have been run within12 months of the date of submittal and that the aggregate source is the same.

3. Proposed mixes shall produce concrete to strengths specified with adequate workability and proper consistency to permit concrete to be worked into forms and around reinforcement without excessive segregation or bleeding.

4. Mixes for concrete to be placed by pumping shall assure adequate workability to permit placement at the specified slump.

5. Mix design shall be subject to review by the Contracting Officer and the Testing Laboratory.

Mixes shall be submitted in accordance with Section 01 33 23 Shop Drawings, Product Data, and Samples. Do not begin concrete production until proposed mix design(s) have been approved by Contracting Officer. Do not mix chemical admixtures from different manufacturers.

B. Portland Cement shall conform to ASTM C 150, Type II cement. The Contractor shall obtain from his supplier of cement or concrete a certificate stating that the cement complies with this specification.

C. Aggregates shall conform to ASTM C 33. Maximum size of aggregate shall be either one (1) inch or not larger than three-quarters (3/4) of the minimum clear spacing between reinforcing bars or between reinforcing concrete surface with the smaller size governing.

D. Water (Used in Mix) shall be clean and free from injurious amounts of acids, alkalis, salts, organic matter or other deleterious substances.

E. The water/cement ratio of the design mix shall be maintained at all times regardless of making field adjustment due to weather or placement conditions. Maximum allowable mixing water shall not exceed seven (7) gallons per sack. Mixing water shall be reduced by the amount of moisture in the aggregate above saturated surface dry conditions.

F. The slump of the concrete as designed and placed on the job shall be four inches maximum when tested in accordance with ASTM C143.

G. Concrete shall be air-entrained, and shall contain 5 percent plus or minus 1 percent entrained air as determined by test procedure ASTM C138. Only air-entrained agents meeting the requirements of ASTM C260 will be permitted and shall be added at the mixer.

H. Provide concrete to the following criteria: (This data and all admixtures used shall be shown on all tickets for all material delivered to the job site.)

CAST-IN-PLACE CONCRETE Section 03 30 00-4

WALKWAYS,

CONCRETE PADS,

METAL BOLLARDS,

& FOOTINGS

CONCRETE TABLES

Unit Measurement Measurement

Compressive Strength (28 day) 3000 psi 5000 psi Water/Cement Ratio (maximum) 0.45 0.45 Aggregate Size (maximum) 1 inch 1 inch Air, Entrained (plus or minus 1%) 5 percent 5 percent Slump (maximum) 4 inches 4 inches Fiber 1.5 pounds per cy 1.5 pounds per cy

I. Admixture: A type that increases the workability and reduces the water demand of the concrete, the brand and amount used subject to the approval of the Contracting Officer and shown in respective mix designs. No admixture containing calcium chloride or salt shall be used.

1. Air Entrainment: ASTM C260, 5% plus or minus 1%

2. Chemical: ASTM C494

J. Limits: The allowable mix design tolerances shall not exceed one percent for cement and water, two percent for each aggregate, or one percent for aggregates weighed cumulatively.

K. Fiber: Concrete requiring fiber shall contain 1.5 pounds Fiber mix, or approved equal, per cubic yard.

L. Use accelerating admixtures in cold weather only when approved by Contracting Officer. Use of admixtures will not relax cold weather placement requirements.

M. Use set retarding admixtures during hot weather only when approved by Contracting Officer.

2.2 JOINT DEVICES AND FILLER MATERIALS

A. Joint Materials: Provide joint sealants, joint fillers and other related materials that are compatible with one another and with joint substrates under conditions of service and application, as demonstrated by sealant manufacturer based on testing and field experience.

1. Expansion Joint Fillers: Asphalt impregnated fiberboard or felt, 1/2 inch thick conforming to ASTM D1751.

2. Isolation Joint Fillers: Bituminous preformed filler conforming to ASTM D994.

2.3 CONCRETE CURING MATERIALS

A. Absorptive Cover: Burlap cloth made from jute or kenaf, weighing approximately 9 oz. per

CAST-IN-PLACE CONCRETE Section 03 30 00-5 square yard, complying with AASHTO M182, Class 2.

B. Moisture-Retaining Cover: One of the following, complying with ASTM C171:

1. Waterproof paper.

2. Polyethylene film.

3. Polyethylene-coated burlap.

C. Liquid Membrane-Forming Curing Compound: ASTM C309. Use type 1 or 1-D clear cure compound.

D. For cold weather protection use curing blankets with a minimum 3.37 R value.

2.6 CONCRETE MIXING

A. Depending on local conditions, or with approval of the Contracting Officer, the methods of mixing may be limited to one of the following:

1. Batching at a Central Plant or “Ready Mixed Concrete” shall comply with requirements of ASTM C94, and as specified herein.

2. Job Site Mixing: Mix materials for concrete in appropriate drum type batch mechanical machine mixer. For mixers of one cubic yard or smaller capacity, continue mixing at least 1-1/2 minutes, but not more than 5 minutes after ingredients are in mixer, before any part of batch is released.

3.1 EXAMINATION

A. Verify that anchors, seats, plates, reinforcement and other items to be cast into concrete are accurately placed, positioned securely, and will not cause hardship in placing concrete.

B. Coordinate the installation of joint materials and vapor retarders with placement of forms and reinforcement.

3.2 PREPARATION

A. Prepare previously placed concrete by cleaning with steel brush and applying bonding agent in accordance with manufacturer's instructions.

B. For walkways cross slope shall be less than 2% and running slope shall be less than 5%. The subgrade shall be prepared in accordance with Section 31 20 00, Earth Moving. Place expansion joint material as described herein before placing new concrete.

C. Coordinate the placement of joint devices with erection of concrete formwork and placement of form

CAST-IN-PLACE CONCRETE Section 03 30 00-6 accessories.

3.3 MIXING AND HAULING

A. Batching and Mixing at a Central Plant Conforming to ASTM C94: The method herein contemplated is ordinarily referred to as “Ready-Mixed Concrete”, and may only be employed if the time interval between mixing at the plant and discharge into the forms does not exceed 90 minutes. This time limitation may be still further reduced when high ambient air temperature or the high temperature of the batch ingredients indicate a shorter time period is required. The mixture shall be agitated continuously from the time the truck is loaded until time of discharge.

B. Batching and Mixing at Site of Work: Concrete shall be mixed thoroughly in a batch mixer of approved type and capacity for a period of not less than 1-1/2 minutes after all component materials, including water, are in a drum, or as specified by the manufacturer of the mixer.

3.3 FORMS

A. See Section 03 11 00, Concrete Forming.

3.4 REMOVAL OF FORMS

A. Formwork not supporting weight of concrete, such as sides of walls, and similar parts of the work, may be removed anytime after 24 hours after placement of the concrete.

3.4 INSTALLATION OF EMBEDDED ITEMS

A. Secure or insert sleeves, bollards, posts, bolts, anchors, inserts, or other hardware in forms and be responsible for any and all changes in the position of such items after they have been set in forms.

3.6 CONCRETE PLACEMENT

A. Environmental Conditions:

1. Cold Weather Placing: When air temperature has fallen to or is expected to fall below 40 deg F, protect concrete work from physical damage or reduced strength which could be caused by frost, freezing actions, or low temperatures, in compliance with ACI 306R. Do not place concrete on frozen subgrade or subgrade containing frozen materials. Submit cold weather protection product data before concrete is ordered.

2. Hot Weather Placing: When air temperature is above or expected to be above 85 deg For weather conditions exist that would seriously impair quality and strength of concrete, place concrete in compliance with ACI 305R.

B. Preplacement Inspection: Before placing concrete, the Contracting Officer shall inspect and approve the complete installation for formwork, reinforcement, and items to be embedded or cast-in. Moisten wood forms immediately before placing concrete where form coatings are not used.

C. Placing Concrete:

CAST-IN-PLACE CONCRETE Section 03 30 00-7

1. All concrete shall be placed within 90 minutes of charging the mixer but, in no case shall concrete be placed after it has started to take its initial set.

2. Concrete shall be placed in such a manner as to avoid segregation but, in no case shall the concrete be dropped freely more than five feet. Deposit concrete as nearly as practicable to its final location to avoid segregation.

3. Concrete shall be placed continuously. If a section cannot be placed continuously, provide construction joints as herein specified. Deposit concrete in a manner to avoid inclined construction joints or the formation of seams or planes of weakness. When placement consists of several layers, place each layer while preceding layer is plastic to avoid cold joints.

4. Protect adjacent finish materials against spatter during concrete placement.

5. Consolidate placed concrete by mechanical vibrating equipment supplemented by hand-spading, rodding or tamping to provide a smooth void free surface against formwork.

6. Do not use vibrators to transport concrete inside forms or cause segregation of mix.

7. Ensure reinforcement, inserts, embedded parts, formed expansion and contraction joints are not disturbed during concrete placement.

8. Maintain records of concrete placement. Record date, location, quantity, air temperature, and test samples taken.

D. Concrete Placement for Bollards: All pipe shall be set vertically and embedded in the concrete AS SHOWN ON THE DRAWINGS and in accordance with Section 32 38 13, Metal Bollards. After pipe footings have set and cured, pipe shall be filled with concrete and rounded smooth at the top.

E. Concrete Placement for Bulletin Board Posts: Posts shall be set vertically and embedded in the concrete AS SHOWN ON THE DRAWINGS and in accordance with Section 32 30 00 Site Improvements

3.7 JOINTS

A. Walkway control joints (troweled ¾” max depth and 1/8” – ¼” grooves with ¼” radius edges) shall be located at approximately every 5 feet and/or at the end and center of each radius, and shall be perpendicular to the longitudinal direction.

B. Expansion Joints: Expansion joints shall be installed where concrete walkway abuts buildings, curbs and any existing concrete. Extend joint material from bottom of slab to within 1/8 inch of finished slab surface.

3.8 CONCRETE FINISHING

A. Finish all concrete walkways with heavy broomed finish. Finish building slabs and other slabs as approved by the Contracting Officer.

CAST-IN-PLACE CONCRETE Section 03 30 00-8

3.8 CONCRETE CURING AND PROTECTION

A. Immediately after placement, protect concrete from premature drying, excessively hot or cold temperatures, and mechanical injury. Concrete shall be cured for a minimum of 7 days by one of the following methods:

1. Provide moisture curing by keeping surface continuously wet by covering with water or water-fog spray, or absorptive cover.

2. Moisture-Retaining Cover: Place cover in widest practicable width with sides and ends lapped at least 3 inches and sealed by waterproof tape or adhesive. Immediately repair any holes or tears during curing period using cover material and waterproof tape.

3. Provide curing and sealing compound in accordance with manufacturer’s recommendations.

Recoat areas subjected to heavy rainfall within 3 hours after initial application. Maintain continuity of coating and repair damage during curing period.

4. Do not use plastic sheets or any curing products which discolor.

3.10 SEQUENCE OF PLACEMENT

A. Do not place loads on concrete until concrete strength cylinders from the same concrete cured under the same conditions indicate that all concrete has obtained at least 80 percent of its required 28 day compressive strength.

3.11 CONCRETE SURFACE REPAIRS

A. Surface repairs shall be made with cement mortar immediately after removal of forms, acceptable to the Contracting Officer. Repairs include filling in holes or openings left for other trades, after work of other trades is in place. Repairs include honeycombs, rock pockets, and void over ¼ inch in any dimension, holes left by ties, rods, and bolts, cracks in excess of 0.01 inch in concrete surfaces.

B. Remove defective areas to sound concrete with clean square cuts. Thoroughly clean, dampen with water, and brush-coat the area to be patched with an approved bonding agent. Place patching mortar after bonding compound has dried. Compact mortar and keep continuously moist for not less than 72 hours. Alternate repair methods are subject to approval by the Contracting Officer. If defects cannot be repaired to satisfaction of Contracting Officer, concrete shall be removed and replaced.

C. Correct high areas in slabs after cure period by grinding.

3.12 FIELD QUALITY CONTROL

A. Sampling and testing for quality control during placement of concrete include the following, as directed by the Contracting Officer.

1. Sampling Fresh Concrete: ASTM C172, except modified for slump to comply with ASTM C94.

2. Slump: ASTM C143 - One test at point of discharge for each truck load, before placement; additional

CAST-IN-PLACE CONCRETE Section 03 30 00-9 tests when concrete consistency seems to have changed, or whenever water is added.

3. Air Entrainment: ASTM C138 - One test for each truck load, before placement.

4. Compression Test Specimen: ASTM C31 - One set of 4 standard cylinders for each compressive strength test, unless otherwise directed. Mold and store cylinders for laboratory cured test specimens, except when field-cure test specimens are required.

5. Compressive Strength Tests: ASTM C39 - One set of 4 standard cylinders for each day’s pour exceeding 3 cubic yards plus an additional set for every 9 cubic yards above the first 3 cubic yards of each concrete class placed in any one day. For quantities above 40 cubic yards placed in one day the number of sets may be adjusted by the Contracting Officer. One specimen shall be tested at 7 days, two specimens tested at 28 days, and one specimen retained in reserve for later testing, if needed or requested by Contracting Officer.

B. Strength level of concrete will be considered satisfactory if averages of sets of two consecutive strength test results equal or exceed specified compressive or flexural strength, and no individual strength test results falls below specified compressive strength by more than 500 psi.

C. Test results will be reported in writing to the Contracting Officer, and Contractor within 2 days after tests. Reports of compressive strength tests shall contain the project identification name and number, date of concrete placement, name of concrete testing service, concrete type and class, location of concrete batch in site, design compressive or flexural strength at 28 days, concrete mix proportions and materials, compressive or flexural breaking strength and type of break for both 7-day and 28-day tests.

END OF SECTION 03 30 00

Table of Contents Preface

101 - Terms¸ Format¸ and Definitions

101.01 Meaning of Terms

101.03 Abbreviations

101.04 Definitions

102 - Bid¸ Award¸ and Execution of Contract

Delete Section 102

103 - Scope of Work

Delete Subsections 103.02, 103.03, 103.04, 103.05

104 - Control of Work

Delete Subsections 104.01, 104.02, 104.04

104.06 Use of Roads by Contractor

105 - Control of Material

105.05 Use of Material Found in the Work

106 - Acceptance of Work

106.01 Conformity with Contract Requirements

106.02 Visual Inspection

107 - Legal Relations and Responsibility to the Public

Delete Subsection 107.05

108 - Prosecution and Progress

Delete Section 108

109 - Measurement and Payment

Delete Subsections 109.06, 109.07, 109.08, 109.09

109.01 Measurement of Work

109.02 Measurement Terms and Definitions

153 - Contractor Quality Control

153.02 Qualifications

155 - Schedules for Construction Contracts

Delete Section 155

157 - Soil Erosion and Sediment Control

157.04 General

204 - Excavation and Embankment

Section 204. — EXCAVATION AND EMBANKMENT

301 - Untreated Aggregate Courses

301.03 General

301.05 Compacting

303 - Road Reconditioning

303.07 Roadway Reconditioning

411 - Asphalt Prime Coat

411.05 Weather Limitations

411.08 Maintenance

411.09 Acceptance

412 - Asphalt Tack Coat

412.05 Weather Limitations

Preface Preface_wo_03_25_2021

Delete all but the first paragraph and add the following:

The Forest Service, US Department of Agriculture has adopted FP-14 for construction of National Forest System Roads.

101 - Terms¸ Format¸ and Definitions 101.01_National_11_9_2016

Add the following paragraph to Subsection 101.01:

101.01 Meaning of Terms.

Delete all references to the TAR (Transportation Acquisition Regulations) in the specifications.

101.03_National_11_9_2016

Add the following to Subsection 101.03:

101.03 Abbreviations.

(a) Acronyms.

AGAR — Agriculture Acquisition Regulations

AFPA — American Forest and Paper Association

FSAR — Forest Service Acquisition Regulations

MSHA — Mine Safety and Health Administration

NESC — National Electrical Safety Code

WCLIB — West Coast Lumber Inspection Bureau

(f) Miscellaneous unit abbreviations.

MP — milepost location ppm — parts per million volume

STA station location

101.04_National_1_22_2020

Make the following changes to Subsection 101.04:

101.04 Definitions.

Delete these definitions and replace the following:

Bid Schedule — The Schedule of Items.

Bridge — A structure, including supports, erected over a depression or an obstruction such as water along a road, a trail, or a railway and having a deck for carrying traffic or other loads.

Contractor — The individual or legal entity contracting with the Government for performance of prescribed work. In a timber sale contract, the contractor is the “Purchaser”.

Culvert — Any structure with a bottom, regardless of fill depth, depth of invert burial, or presence of horizontal driving surface, or any bottomless (natural channel) structure with footings that will not have wheel loads in direct contact with the top of the structure.

Drawings — (Public Works Contracts) Design sheets or fabrication, erection, or construction details submitted to the CO by the Contractor according to FAR Clause 52.236-21 Specifications and Drawings for Construction. Also refers to submissions and submittals.

Notice to Proceed — (Public Works Contracts) Written notice to the Contractor to begin the contract work.

Right-of-Way — A general term denoting (1) the privilege to pass over land in some particular line (including easement, lease, permit, or license to occupy, use, or traverse public or private lands), or (2) Real property necessary for the project, including roadway, buffer areas, access, and drainage areas.

Solicitation—(Public Works Contracts) The complete assembly of documents (whether attached or incorporated by reference) furnished to prospective bidders.

Add the following definitions:

Adjustment in Contract Price — “Equitable adjustment,” as used in the Federal Acquisition Regulations, or “construction cost adjustment,” as used in the Timber Sale Contract, as applicable.

Change — “Change” means “change order” as used in the Federal Acquisition Regulations, or “design change” as used in the Timber Sale Contract.

Forest Service — The United States of America, acting through the Forest Service, U.S. Department of Agriculture.

Neat Line — A line defining the proposed or specified limits of an excavation or structure.

Pioneer Road — Temporary construction access built along the route of the project.

Purchaser — The individual, partnership, joint venture, or corporation contracting with the Government under the terms of a Timber Sale Contract and acting independently or through agents, employees, or subcontractors.

Protected Streamcourse — A drainage shown on the plans or timber sale area map that requires designated mitigation measures.

Road Order — An order affecting and controlling traffic on roads under Forest Service jurisdiction. Road Orders are issued by a designated Forest Officer under the authorities of 36 CFR, part 260.

Shop Drawings — (Timber and Stewardship Contracts) Referred to as “Drawings” in FP-14, include drawings, diagrams, layouts, schematics, descriptive literature, illustrations, lists or tables, performance and test data, and similar materials furnished by Purchaser to explain in detail specific portions of the work required by the contract.

Utilization Standards —

The minimum size and percent soundness of trees described in Public Works contract specifications or Timber Sale and IRTC contract provisions to determine merchantable timber.

Add Figure 101-1—Illustration of road structure terms:

Figure 101-1—Illustration of road structure terms.

102 - Bid¸ Award¸ and Execution of Contract 102.00_National_11_9_2016

Delete Section 102 in its entirety.

Delete Section 102.

103 - Scope of Work 103.00_National_11_9_2016

Delete all of Section 103 except Subsection 103.01 Intent of Contract.

Delete Subsections 103.02, 103.03, 103.04, 103.05.

104 - Control of Work 104.00_National_11_9_2016

Delete Subsections 104.01, 104.02, and 104.04.

Delete Subsections 104.01, 104.02, 104.04.

104.06_National_11_9_2016

Add the following to Subsection 104.06:

104.06 Use of Roads by Contractor.

The Contractor is authorized to use roads under the jurisdiction of the Forest Service for all activities necessary to complete this contract, subject to the limitations and authorizations designated in the Road Order(s) or described in the contract, when such use will not damage the roads or national forest resources, and when traffic can be accommodated safely.

105 - Control of Material 105.05_National_6_29_2020

105.05 Use of Material Found in the Work.

Delete 105.05 (a) and (b) and the last sentence of the second paragraph and substitute the following:

Materials produced or processed from Government lands in excess of the quantities required for performance of this contract are the property of the Government. Place excess material safely at government-approved location, at no additional cost to government.

106 - Acceptance of Work 106.01_National_7_18_2017

Delete Subsection 106.01 and replace with the following:

106.01 Conformity with Contract Requirements.

Follow the requirements of FAR Clause 52.246-12 Inspection of Construction.

References to standard test methods of AASHTO, ASTM, GSA, and other recognized standard authorities refer to the methods in effect on the date of solicitation for bids.

Perform all work to the lines, grades, cross-sections, dimensions, and processes or material requirements shown on the plans or specified in the contract.

Incorporate manufactured materials into the work according to the manufacturer’s recommendations or to these specifications, whichever is more strict.

Plan dimensions and contract specification values are the values to be strived for and complied with as the design values from which any deviations are allowed. Perform work and provide material that is uniform in character and reasonably close to the prescribed value or within the specified tolerance range. The purpose of a tolerance range is to accommodate occasional minor variations from the median zone that are unavoidable for practical reasons.

When standard manufactured items are specified (such as fence, wire, plates, rolled shapes, pipe conduits, etc., that are identified by gauge, unit mass, section dimensions, etc.), the identification will be considered to be nominal masses or dimensions. Unless specific contract tolerances are noted, established manufacturing tolerances will be accepted.

The Government may inspect, sample, or test all work at any time before final acceptance of the project. When the Government tests work, copies of test reports are furnished to the Contractor upon request. Government tests may or may not be performed at the work site. If Contractor testing and inspection is verified by the Government, the Contractor’s results may be used by the Government to evaluate work for acceptance. Do not rely on the availability of Government test results for process control.

Acceptable work conforming to the contract will be paid for at the contract unit bid price. Four methods of determining conformity and accepting work are described in Subsections 106.02 to 106.05 inclusive. The primary method of acceptance is specified in each Section of work. However, work may be rejected at any time it is found by any of the methods not to comply with the contract.

Remove, repair, or replace work that does not conform to the contract, or to prevailing industry standards where no specific contract requirements are noted. Removing, repairing, or replacing work; providing temporary traffic control; and any other related work to accomplish conformity will be at no cost to the Government.

(a) Disputing Government test results. If the accuracy of Government test results is disputed, promptly inform the CO. If the dispute is unresolved after reasonable steps are taken to resolve the dispute, further evaluation may be obtained by written request. Include a narrative describing the dispute and a proposed resolution protocol that addresses the following:

1. Sampling method;

2. Number of samples;

3. Sample transport;

4. Test procedures;

5. Testing laboratories;

6. Reporting;

7. Estimated time and costs; and

8. Validation process.

If the evaluation requires additional sampling or testing be performed, mutually agree with the Government on witnessing procedures and on sampling and testing by a third party laboratory. Use a third party laboratory accredited by the AASHTO accreditation program. Provide proof of the laboratory’s accreditation for the test procedures to be used. Do not use the same laboratory that produced the disputed Government test results or that produced the test results used as a basis for the dispute.

The CO will review the proposed resolution protocol and may modify it before final approval and execution.

The Government will use the approved resolution protocol test results to determine the validity of the disputed testing. If the Government test results are validated, the Contractor will be responsible for all costs associated with developing and performing the resolution protocol. If the Government test results are not validated, the Government will be responsible for all costs associated with developing and performing the resolution protocol.

If the validity of the Government test results cannot be determined, the Contractor and Government will equally share all costs associated with developing and carrying out the resolution protocol.

(b) Alternatives to removing and replacing non-conforming work. As an alternative to removal and replacement, the Contractor may submit a written request to:

1. Have the work accepted at a reduced price; or

2. Be given permission to perform corrective measures to bring the work into conformity.

The request must contain supporting rationale and documentation. Include references or data justifying the proposal based on an evaluation of test results, effect on service life, value of material or work, quality, aesthetics, and other tangible engineering basis. The CO will determine disposition of the nonconforming work.

106.02_National_11_9_2016

Delete Subsection 106.02 and replace with the following:

106.02 Visual Inspection.

Acceptance is based on visual inspection of the work for compliance with the specific contract requirements.

Use prevailing industry standards in the absence of specific contract requirements or tolerances.

107 - Legal Relations and Responsibility to the Public 107.05_National_7_18_2017

Delete Subsection 107.05.

Delete Subsection 107.05.

108 - Prosecution and Progress 108.00_National_11_9_2016

Delete Section 108 in its entirety.

Delete Section 108.

109 - Measurement and Payment 109.00_National_11_9_2016

Delete Subsections 109.06, 109.07, 109.08, and 109.09:

Delete Subsections 109.06, 109.07, 109.08, 109.09.

109.01_National_2_22_2019

Delete the third paragraph and Table 109-1 of Subsection 109.01 and replace with the following:

109.01 Measurement of Work.

Take measurements as described in Subsection 109.02 unless otherwise modified by the Measurement Subsection of the section controlling the work being performed. Table 109-1 indicates the accuracy required for quantities of the various pay units used in the Schedule of Items. Use this guide to determine the decimal placement in the final payment.

Table 109-1

Decimal Accuracy of Quantities for Final Payment

Pay Item Level of Precision Linear Foot 1

Exception--Timber, Steel, and concrete Piles 0.1 Station 0.1 Mile 0.01 Square Foot 0.1 Square Yard 0.1 Each 1 Acre 0.01 Gallon 1 M-Gals. 0.1 Cubic Yard 1

Exception--Structure Excavation; Sheathing Materials; Bedding, Bed Course, and Backfill Materials; Gabions;

0.1

Exception--Concrete; Masonry 0.01 Pound 1 Ton 0.1

Exception--Calcium Chloride;

Sodium Chloride; Hydrated Lime;

Bituminous Materials; Pavements;

Bed Course Materials

0.01

Hour 0.1

MFBM 0.01

Station Yard 1 Cubic Yard Mile 1 Ton Mile 1

109.02_National_11_9_2016

Add the following sentence to Subsection 109.02(b):

109.02 Measurement Terms and Definitions.

(b) Contract quantity.

Contract quantities will be adjusted only when there are errors in the original design of 15% or more.

153 - Contractor Quality Control 153.02_National_11_1_2016

Delete Subsection 153.02 and replace with the following:

153.02 Qualifications.

Submit the following for approval with the quality control plan:

(a) Quality control manager (QCM). Furnish a QCM who has at least 2 years’ experience in construction, inspector, quality control and material testing on construction projects of similar type and scope.

(b) Testers. Provide testers with at least one year experience in the type of sampling and testing required, and with one of the following for the type of sampling and testing performed:

(1) NICET Level II certification in highway material or equivalent state or industry certification;

(2) Certification by a regional certification program (such as Western Alliance for Quality Transportation Construction (WAQTC), Northeast Transportation Technician Certification Program (NETTCP), Southeast Task Force for Technician Training and Qualification (STFTTQ), or Multi Regional Training and Certification (M-TRAC)); or

(3) At least one year employment by an AASHTO accredited laboratory performing equivalent sampling and testing.

155 - Schedules for Construction Contracts 155.00_National_11_9_2016

Delete Section 155 in its entirety.

Delete Section 155.

157 - Soil Erosion and Sediment Control 157.04_National_11_1_2016

Delete Subsection 157.04 and replace with the following:

157.04 General.

Thirty (30) days prior to the start of construction, submit a written plan according to subsection 104.03 with all necessary permits that provides permanent and temporary erosion control measures to minimize erosion and sedimentation during and after construction. Do not begin work until the necessary controls for that particular phase of work have been implemented. Do not modify the type, size, or location of any control without approval.

When erosion control measures are not functioning as intended, take corrective action to eliminate or minimize pollutants in storm water discharges from the project.

204 - Excavation and Embankment 204.00_National_11_4_2016

Delete Section 204 in its entirety and replace with the following.

Section 204. — EXCAVATION AND EMBANKMENT Description

204.01 This work consists of excavating material and constructing embankments. This work also includes furnishing, hauling, stockpiling, placing, disposing, sloping, shaping, compacting, and finishing earthen and rocky material.

204.02 Definitions.

(a) Excavation. Excavation consists of the following:

(1) Roadway excavation. Material excavated from within the right-of-way or easement areas, except subexcavation covered in Subsection 204.02(a)(2) and structure excavation covered in Sections 208 and

209. Roadway excavation includes all material encountered regardless of its nature or characteristics.

(2) Subexcavation. Material excavated from below subgrade elevation in cut sections or from below the original ground-line in embankment sections. Subexcavation excludes the work required by Subsection

204.05 or 204.06.

(3) Borrow excavation. Material used for embankment construction that is obtained from outside the roadway prism. Borrow excavation includes unclassified borrow, and topping.

(b) Embankment construction. Embankment construction consists of placing and compacting roadway or borrow excavation. This work includes:

(1) Preparing foundation for embankment;

(2) Constructing roadway embankments;

(3) Benching for side-hill embankments;

(4) Constructing dikes, ramps, mounds, and berms; and

(5) Backfilling subexcavated areas, holes, pits, and other depressions.

(c) Conserved topsoil. Excavated material conserved from the roadway excavation and embankment foundation areas that is suitable for growth of grass, cover crops, or native vegetation.

(d) Waste. Excess and unsuitable roadway excavation and subexcavation that cannot be used.

Material

204.03 Conform to the following Subsections:

Topping 704.05

Unclassified borrow 704.06

Water 725.01(c)

Construction Requirements

204.04 Preparation for Roadway Excavation and Embankment Construction. Clear the area of vegetation and obstructions according to Sections 201 and 203.

Road pioneering, slash disposal, and grubbing of stumps may proceed concurrently with excavation and embankment. Maintain drainage during pioneering operations.

204.05 Conserved Topsoil. When designated, conserve topsoil from roadway excavation and embankment foundation areas. Stockpile conserved topsoil in low windrows immediately beyond the rounding limits of cut and embankment slopes or in other approved locations. Separate conserved topsoil from other excavated material.

When designated, place conserved topsoil on completed slopes according to Section 624.

204.06 Roadway Excavation. Excavate as follows:

(a) Rock cuts. Blast rock according to Section 205. Excavate rock cuts to 6 inches (150 millimeters) below subgrade within the roadbed limits. Backfill to subgrade with topping or other suitable material. Compact the material according to Subsection 204.11.

(b) Earth cuts. Scarify earth cuts to 6 inches (150 millimeters) below subgrade within the roadbed limits.

Compact the scarified material according to Subsection 204.11.

(c) Pioneer Roads. Conduct excavation and placement operations so material to be treated under Section 201 will not be incorporated into the roadway unless specified in the slash treatment method. Maintain drainage during pioneering operations.

Remove snow and ice in advance of the work and deposit beyond the roadway limits in a manner that will not waste material or generate sediment. Do not incorporate snow and ice into embankments. Place snow or ice in a manner to prevent resource damage.

(d) Drainage Feature. Drainage feature includes construction of all ditches, minor channel changes, drainage dips, catch basins, surface water deflectors, and other minor drainage structures. Compact the material according to Subsection 204.11. Excavate on a uniform grade between control points.

Do not disturb material and vegetation outside the construction limits. Retrieve material deposited outside the construction limits. Dispose of unsuitable or excess excavation material according to Subsection 204.14. Replace shortage of suitable material caused by premature disposal of roadway excavation.

Shape to drain and compact the work area to a uniform cross-section at the end of each day's operations.

204.07 Subexcavation. Excavate material to the required limits. Dispose of unsuitable material according to Subsection 204.14. Take cross-sections according to Section 152. Backfill subexcavated area with suitable material in horizontal layers not exceeding 12 inches (300 millimeters) in compacted thickness and compact according to Subsection 204.11. Prevent unsuitable material from mixing with suitable backfill material.

204.08 Borrow Excavation. Use suitable roadway excavation in embankment construction. Do not use borrow excavation when it results in excess roadway excavation. Deduct excess borrow excavation from the total borrow excavation quantity.

Obtain borrow source approval according to Subsection 105.02. Develop and restore borrow sources according to Subsections 105.03 and 105.06. Do not excavate beyond the established limits. When applicable, shape the borrow source to permit accurate measurements when excavation is complete.

204.09 Preparing Foundation for Embankment Construction. Prepare foundation for embankment construction as follows:

(a) Embankment over natural ground. Remove topsoil and break up the ground surface to a minimum depth of 6 inches (150 millimeters) by plowing or scarifying. Compact the ground surface according to Subsection 204.11.

(b) Embankments over an existing asphalt, concrete, or gravel road surface. Scarify gravel roads to a minimum depth of 6 inches (150 millimeters).