Standard Historical Last Updated: Oct 13, 2014 Track Document
ASTM C478M-13

Standard Specification for Precast Reinforced Concrete Manhole Sections (Metric)

Standard Specification for Precast Reinforced Concrete Manhole Sections (Metric) C0478M-13 ASTM|C0478M-13|en-US Standard Specification for Precast Reinforced Concrete Manhole Sections (Metric) Standard new BOS Vol. 04.05 Committee C13
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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.

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 which 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 be included in Part II in a future revision of this specification.

1.4 This specification is the SI companion to C478.

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.
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Details
Book of Standards Volume: 04.05
Developed by Subcommittee: C13.06
Pages: 9
DOI: 10.1520/C0478M-13
ICS Code: 13.060.30; 13.060.300