AASHTO M 199M M 199-2014 Standard Specification for Precast Reinforced Concrete Manhole Sections.pdf
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1、Standard Specification for Precast Reinforced Concrete Manhole Sections AASHTO Designation: M 199M/M 199-141ASTM Designation: C 478M-13 and C 478-13 American Association of State Highway and Transportation Officials 444 North Capitol Street N.W., Suite 249 Washington, D.C. 20001 TS-4a M 199M/M 199-1
2、 AASHTO Standard Specification for Precast Reinforced Concrete Manhole Sections AASHTO Designation: M 199M/M 199-141ASTM Designation: C 478M-13 and C 478-13 PART IGENERAL 1. SCOPE 1.1. This specification covers the manufacture and purchase requirements of products used for the assembly and construct
3、ion of circular vertical precast reinforced concrete manholes and structures used in sewer, drainage, and water works. 1.2. Part I, Sections 1 through 11, of this specification presents general requirements and requirements that are common to each precast concrete product covered by this specificati
4、on. 1.3. Part II of this specification presents specific requirements for each manhole product in the following sections: Product Section Grade rings 12 Flat slab tops 13 Risers and conical tops 14 Base sections 15 Steps and ladders 16 Note 1Future products will be included in Part II in a future re
5、vision of this specification. 1.4. This specification is applicable for orders in either SI units (M 199M) or in inch-pound units (M 199). SI units and inch-pound units are not necessarily equivalent. Inch-pound units are shown in brackets in the text for clarity, but they are the applicable values
6、when the material is ordered to M 199. Note 2This specification is a manufacturing and purchase specification only, and does not include requirements for backfill, or the relationship between field load conditions and the strength requirements of the manhole products and appurtenances. Experience ha
7、s shown, however, that the successful performance of this product depends upon the proper selection of the product strength, type of foundation and backfill, and care in the field installation of the manhole products and connecting pipes. The owner of the project for which these products are specifi
8、ed herein is cautioned to require inspection at the construction site. 2014 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4a M 199M/M 199-2 AASHTO 2. REFERENCED DOCUMENTS 2.1. AASHTO Standards: M 6, Fine
9、 Aggregate for Hydraulic Cement Concrete M 31M/M 31, Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement M 32M/M 32, Steel Wire, Plain, for Concrete Reinforcement M 55M/M 55, Steel Welded Wire Reinforcement, Plain, for Concrete M 80, Coarse Aggregate for Hydraulic Cement Concrete M 85, P
10、ortland Cement M 154M/M 154, Air-Entraining Admixtures for Concrete M 194M/M 194, Chemical Admixtures for Concrete M 221M/M 221, Steel Welded Wire Reinforcement, Deformed, for Concrete M 225M/M 225, Steel Wire, Deformed, for Concrete Reinforcement M 240M/M 240, Blended Hydraulic Cement M 262, Concre
11、te Pipe and Related Products M 295, Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete M 302, Slag Cement for Use in Concrete and Mortars T 22, Compressive Strength of Cylindrical Concrete Specimens T 280, Concrete Pipe, Manhole Sections, or Tile 2.2. ASTM Standard: A 706/A 706M,
12、Standard Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement C 309-03, Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete C 1017/C 1017M, Standard Specification for Chemical Admixtures for Use in Producing Flowing Concrete 2.3. ACI Stand
13、ard: 318, Building Code, Requirements for Reinforced Concrete 3. TERMINOLOGY 3.1. DefinitionsFor definitions of terms relating to concrete manholes, see M 262. 4. MATERIALS AND MANUFACTURE 4.1. General material requirements for precast reinforced concrete manhole products are presented in Sections 4
14、.1.1 through 4.1.8. Other materials or additional requirements for a product, if any, are covered in the Part II section for that specific product. 4.1.1. Reinforced ConcreteThe reinforced concrete shall consist of cementitious materials, mineral aggregates, and water, in which steel reinforcement h
15、as been embedded in such a manner so that the steel reinforcement and concrete act together. 2014 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4a M 199M/M 199-3 AASHTO 4.1.2. Cementitious Materials: 4.1
16、.2.1. CementCement shall conform to the requirements for portland cement of M 85, or shall be portland blast-furnace slag cement or portland-pozzolan cement conforming to the requirements of M 240M/M 240, except that the pozzolan constituent in the Type IP portland-pozzolan cement shall be fly ash.
17、4.1.2.2. Fly AshFly ash shall conform to the requirements of Class F or Class C of M 295. 4.1.2.3. Slag CementSlag cement shall conform to the requirements of Grade 100 or 120 of M 302. 4.1.3. Allowable Combinations of Cementitious MaterialsThe combination of cementitious materials used in the concr
18、ete shall be one of the following: 4.1.3.1. Portland cement only, 4.1.3.2. Portland blast-furnace slag cement only, 4.1.3.3. Slag modified portland cement only, 4.1.3.4. Portland-pozzolan cement only, 4.1.3.5. A combination of portland cement and ground granulated blast furnace slag, 4.1.3.6. A comb
19、ination of portland cement and fly ash, or 4.1.3.7. A combination of portland cement, ground granulated blast-furnace slag (not to exceed 25 percent of the total cementitious weight). 4.1.4. AggregatesAggregates shall conform to M 6 and M 80, except that the requirement for gradation shall not apply
20、. 4.1.5. Admixtures and BlendsAdmixtures and blends shall only be used with the approval of the owner. 4.1.5.1. Air-Entraining Admixture conforming to M 154M/M 154; 4.1.5.2. Chemical Admixture conforming to M 194M/M 194; 4.1.5.3. Chemical Admixture for use in producing flowing concrete conforming to
21、 ASTM C 1017/C 1017M; 4.1.5.4. Chemical Admixture or Blend approved by the owner. 4.1.6. Steel ReinforcementReinforcement shall consist of wire conforming to M 32M/M 32 or M 225M/M 225, of wire fabric conforming to M 55M/M 55 or M 221M/M 221, or of bars of Grade 300 40 steel conforming to M 31M/M 31
22、, or bars confirming to ASTM A 706/A 706M. 4.1.7. Secondary Synthetic FiberCollated fibrillated polypropylene virgin fibers shall not be prohibited when used in steel reinforced concrete manholes as a nonstructural manufacturing enhancement. Only fibers designed and manufactured specifically for use
23、 in concrete and so certified by the manufacturer shall be accepted. 2014 by the American Association of State Highway and Transportation Officials.All rights reserved. Duplication is a violation of applicable law.TS-4a M 199M/M 199-4 AASHTO 4.1.8. Other MaterialsOther materials required for a produ
24、ct and not covered in Section 4 will be covered in the Part II section for that specific product. 5. DESIGN 5.1. Design requirements for a product are prescribed in the specific Part II section for that product. 5.1.1. The minimum compressive strength of concrete manhole products covered by this spe
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