AASHTO M 199M M 199-2017 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 199-171Technical Section: 4a, Concrete Drainage Structures Release: Group 2 (June 2017) ASTM Designation: C478M-15a and C478-15a American Association of State Highway and Transportation Officials 444
2、 North Capitol Street N.W., Suite 249 Washington, D.C. 20001 TS-4a M 199M/M 199-1 AASHTO Standard Specification for Precast Reinforced Concrete Manhole Sections AASHTO Designation: M 199M/M 199-171Technical Section: 4a, Concrete Drainage Structures Release: Group 2 (June 2017) ASTM Designation: C478
3、M-15a and C478-15a PART IGENERAL 1. SCOPE 1.1. This specification covers the manufacture and purchase requirements of products used for the assembly and construction of circular vertical precast reinforced concrete manholes and structures used in sewer, drainage, and water works. 1.2. Part I (Sectio
4、ns 1 through 11) of this specification presents general requirements and requirements that are common to each precast concrete product covered by this specification. 1.3. Part II of this specification presents specific requirements for each manhole product in the following sections: Product Section
5、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 revision of this specification. 1.4. This specification is applicable for orders in either SI units (M 199M) or in inch-pound units (M 199).
6、 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 when the material is ordered to M 199. Note 2This specification is a manufacturing and purchase specification only, and does not include r
7、equirements for backfill, or the relationship between field load conditions and the strength requirements of the manhole products and appurtenances. Experience has shown, however, that the successful performance of this product depends on the proper selection of the product strength, type of foundat
8、ion 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 specified herein is cautioned to require inspection at the construction site. 2017 by the American Association of State Highway and Transportation
9、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 Aggregate for Hydraulic Cement Concrete M 31M/M 31, Deformed and Plain Carbon and Low-Alloy Steel Bars for Concrete Reinforcement M 32M/M 3
10、2, 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, Portland Cement M 154M/M 154, Air-Entraining Admixtures for Concrete M 157, Ready-Mixed Concrete M 194M/M 194, Chemical Admixtu
11、res 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, Concrete Pipe and Related Products M 295, Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in C
12、oncrete 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 Standards: A706/A706M, Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement C309-
13、03, Standard Specification for Liquid Membrane-Forming Compounds for Curing Concrete C1017/C1017M, Standard Specification for Chemical Admixtures for Use in Producing Flowing Concrete 2.3. ACI Standard: 318, Building Code, Requirements for Reinforced Concrete 3. TERMINOLOGY 3.1. DefinitionsFor defin
14、itions 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 4.1.1 through 4.1.8. Other materials or additional requirements for a product, if any, are covered in t
15、he 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 has been embedded in such a manner so that the steel reinforcement and concrete act together. 2017 by t
16、he 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: 4.1.2.1. CementCement shall conform to the requirements for portland cement of M 85, or shall be portland
17、 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. 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. Sla
18、g 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 concrete shall be one of the following: 4.1.3.1. Portland cement only, 4.1.3.2. Portland blast-furnace slag
19、 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 combination of portland cement and fly ash, or 4.1.3.7. A combination of portland cement, ground granulate
20、d 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. 4.1.5. Admixtures and BlendsAdmixtures and blends shall only be used with the approval of the owner.
21、 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 ASTM C1017/C1017M; 4.1.5.4. Chemical admixture or blend approved by the owner. 4.1.6. Steel Reinforce
22、mentReinforcement 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, or bars confirming to ASTM A706/A706M. 4.1.7. Secondary Synthetic FiberCollated fibrillated polypropyl
23、ene 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 in concrete and so certified by the manufacturer shall be accepted. 4.1.8. WaterMix water shall conform w
24、ith M 157, Section 4.1.4, with a maximum limit of 0.15 percent chloride. 2017 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 4.1.9. Other MaterialsOther materials required for a p
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