ASTM C478 - 13

    Standard Specification for Precast Reinforced Concrete Manhole Sections

    Active Standard ASTM C478 | Developed by Subcommittee: C13.06

    Book of Standards Volume: 04.05


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    Abstract

    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 and water works. 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. Aggregates shall conform to the specification , except that the requirements for gradation shall not apply. Minimum compressive strength of concrete manhole products covered must meet the requirement. The aggregates shall be sized, graded, proportioned, and mixed with such proportions of cementitious materials and water as will produce as homogeneous concrete mixture of such quality that the products will conform to the test and design requirements. Concrete products shall be subjected to either steam or water curing. Test methods such as compression and absorption testing shall be performed.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    Significance and Use

    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, Sections 1-11, 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

     

     

    Grade Rings

    12

     

     

    Flat Slab Tops

    13

     

     

    Risers and Conical Tops

    14

     

     

    Base Sections

    15

     

     

    Steps and Ladders

    16

     


    Note 1Future products will to be included in Part II in a future revision of this specification.

    1.4 This specification is the inch-pound companion to Specification C478M; therefore, no SI equivalents are presented in the specification.

    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 has 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 specified herein is cautioned to require inspection at the construction site.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A615/A615M Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

    A706/A706M Specification for Low-Alloy Steel Deformed and Plain Bars for Concrete Reinforcement

    A1064/A1064M Specification for Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete

    C33 Specification for Concrete Aggregates

    C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens

    C150 Specification for Portland Cement

    C260 Specification for Air-Entraining Admixtures for Concrete

    C309 Specification for Liquid Membrane-Forming Compounds for Curing Concrete

    C494/C494M Specification for Chemical Admixtures for Concrete

    C497 Test Methods for Concrete Pipe, Manhole Sections, or Tile

    C595 Specification for Blended Hydraulic Cements

    C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete

    C822 Terminology Relating to Concrete Pipe and Related Products

    C989 Specification for Slag Cement for Use in Concrete and Mortars

    C1017/C1017M Specification for Chemical Admixtures for Use in Producing Flowing Concrete

    ACI Standard

    318 Building Code, Requirements for Reinforced Concrete


    ICS Code

    ICS Number Code 13.060.30 (Sewage water)

    UNSPSC Code

    UNSPSC Code 30121714(Manhole box)


    DOI: 10.1520/C0478-13

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