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ASTM C478-15

Historical Revision

Standard Specification for Circular Precast Reinforced Concrete Manhole Sections

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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 1: Future 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 2: This 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.


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.


SDO ASTM: ASTM International
Document Number C478
Publication Date Jan. 1, 2015
Language en - English
Page Count 9
Revision Level 15
Supercedes
Committee C13.06
Publish Date Document Id Type View
July 15, 2019 C0478-19 Revision
Jan. 1, 2018 C0478-18 Revision
Oct. 15, 2015 C0478-15A Revision
Jan. 1, 2015 C0478-15 Revision
Sept. 15, 2014 C0478-14 Revision
April 1, 2013 C0478-13 Revision
Oct. 1, 2012 C0478-12A Revision
April 1, 2012 C0478-12 Revision
Nov. 1, 2011 C0478-11 Revision
Feb. 1, 2009 C0478-09 Revision
March 15, 2008 C0478-08 Revision
March 1, 2007 C0478-07 Revision
June 1, 2006 C0478-06B Revision
Feb. 15, 2006 C0478-06A Revision
Feb. 1, 2006 C0478-06 Revision
Oct. 15, 2005 C0478-05 Revision
Sept. 10, 2003 C0478-03A Revision
May 10, 2003 C0478-03 Revision
Sept. 10, 2002 C0478-02AE01 Revision
April 10, 2002 C0478-97 Revision
April 10, 2002 C0478-02 Revision