SECTION 701 - STRUCTURAL CONCRETE RELATED MATERIAL
701.01 Portland Cement and Portland Pozzolan Cement Portland cement shall
conform to the requirements of AASHTO M 85, Type II. A Type I, Type II or Type III cement meeting AASHTO M 85 may b e used when making precast units. A Type IP (MS) Portland-pozzolan cement (blended hydraulic cem ent with moderate sulfate resistance) meeting the requirements of AASHTO M 240, may be used instead of Type II or where Type I Portland cement, meeting the requirements of AASHTO M 85, is allowed. The definitions of the two hydraulic cements mentioned above are as follows: (See ASTM C 219) Portland cement - a hydraulic cement produced by pulverizing Portland cement clinker, and usually containing calcium sulfate. Portland-pozzolan cement - a hydraulic cement consisting of an intimate and uniform blend of Portland cement or portland blast furnace slag cement and fine pozzolan produced by intergrinding Portland cement clinker and pozzolan, by blending Portland cement or portland blast furnace slag cement and finely divided pozzolan, or a combination of intergrinding and blending, in which the amount of the pozzolan constituent is within specified limits. Only one brand of cement shall be used on any one contract unless otherwise permitted, in writing, by the Resident. The cement shall be protected from dampness during storage. Partially set cement or cement that contains caked lumps shall not be used. The Contractor shall arrange for the cement supplier to provide a Manufacturer’s Certification (Mill Test Report) for all cement materials furnished for use on the project. Reports shall include all mandatory and optional requirements specified in AASHTO M 85 or AASHTO M 240 including any processing additions. Reports shall represent the cement incorporated into the project and reports shall be supplied, at a minimum, on a monthly basis. Reports shall be submitted to the Department’s Materials Testing Engineer.
701.02 Water Water used in mixing or curing concrete shall be reasonably clean and
free of oil, salt, acid, alkali, sugar, vegetation, or substances injurious to the finished product. If required by the Resident, it shall be tested in accordance with the requirements of AASHTO T 26. Water known to be of potable quality may be used without testing. Where the source of water is relatively shallow, the intake shall be so enclosed as to exclude silt, mud, grass, or other foreign materials. 7-4
701.03 Air-Entraining Chemical Admixtures Air-entraining admixtures shall be NTPEP
tested and conform to the requirements of AASHTO M 154. The material used shall be one of the products listed on the M aine Department of Transportation’s Qualified Products List.
701.04 Water Reducing Chemical Admixtures Water reducing admi xtures shall be
NTPEP tested and conform to the requirements of AASHTO M 194, Type A. The material used shall be one of the products listed on the M aine Department of Transportation’s Qualified Products List. 701.0401 High Range, Water Reducing, Chemical Admixture High range, water- reducing admixture, commonly referred to as both high range-water-reducers and/or superplasticizers, shall be NTPEP tested and conform to the requirements of AASHTO M 194, Type F. The material used shall be one of the products listed on the Maine Department of Transportation’s Qualified Products List.
701.05 Set-retarding Chemical Admixtures Set-retarding admixtures shall be NTPEP
tested and conform to the requirements of AASHTO M 194, Types B or D. The material used shall be one of the products listed on the M aine Department of Transportation’s Qualified Products List.
701.06 Curing Materials Sheet materials for curing concrete s hall conform to the
requirements of AASHTO M 171. Burlap cloth shall conform to the requirements of AASHTO M 182 Class 3, 10 oz/yd. Liquid membrane-forming compounds shall conform to the requirements of AASHTO M 148 and shall be one of the products listed on the Maine Department of Transportation’s Qualified Products List. The two types of approved liquid membrane-forming compounds are: (1) Type 1-D, clear or translucent with fugitive dye which must be readily distinguishable for at least 4 hours and must be inconspicuous in 7 days and (2) Type 2, white pigmented.
701.07 Waterstops Waterstops shall be polyvinylchloride and c onform to the
requirements of US Army Corps of Engineers Specification CRD C-572.
701.08 Smooth Surfaced Asphalt Roll Roofing ( formerly called Heavy Roofing
Felt) Wherever heavy roofing is called for on the plans an approved standard brand of smooth surface asphalt roofing (organic felt) conforming to ASTM D 224 Type I.
701.10 Fly Ash Fly Ash shall conform to the chemical and phy sical requirements of
AASHTO M 295, Class F fly ash. 7-5 The Contractor shall arrange for the fly ash supplier to provi de a Manufacturer’s Certification (Mill Test Report) for all fly ash materials furnished for use on the project. Reports shall include all mandatory and optional requirements specified in AASHTO M 295 including procedure A in Table 4. Reports shall represent the fly ash incorporated into the project and reports shall be supplied, at a minimum, on a monthly basis. Reports shall be submitted to the Department’s Materials Testing Engineer.
701.11 Calcium Nitrite Solution, Chemical Admixture Calcium nitrite solutions shall be
NTPEP tested and conform to the requirements of AASHTO M 194, Type C (accelerating admixtures). An approved calcium nitrite based corrosion inhibitor shall be added to the concrete mix as an aqueous solution. The material used shall be one of the products listed on the M aine Department of Transportation’s Qualified Products List.
701.12 Silica Fume The silica fume material for use in Portla nd Cement Concrete
shall conform to the chemical and physical requirements of AASHTO M 307 and be one of the products listed on the Maine Department of Transportation's Qualified Products List. The Contractor shall arrange for the silica fume supplier to p rovide a Manufacturer’s Certification (Mill Test Report) for all silica fume materials furnished for use on the project. Reports shall include all mandatory and optional requirements specified in AASHTO M 307. Reports shall represent the silica fume incorporated into the project and reports shall be supplied, at a minimum, on a monthly basis. Reports shall be submitted to the Department’s Materials Testing Engineer.
701.13 Ground Granulated Blast Furnace Slag Ground granulated blast furnace slag
shall conform to the chemical and physical requirements for Grade 100 or120 as listed in AASHTO M 302. The Contractor shall arrange for the slag supplier to provide a Manufacturer’s Certification (Mill Test Report) for all slag materials furnished for use on the project. Reports shall include all mandatory and optional requirements specified in AASHTO M 302 including any processing additions. Reports shall represent the slag incorporated into the project and reports shall be supplied, at a minimum, on a monthly basis. Reports shall be submitted to the Department’s Materials Testing Engineer.
Get an email when 701 changes
Maine revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.