Norm

ASTM C478-15a

Standard Specification for Circular Precast Reinforced Concrete Manhole Sections

54,27

Over deze norm

Status Definitief
Aantal pagina's 9
Commissie C13.06
Gepubliceerd op 15-10-2015
Taal Engels

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.

Details

ICS-code 13.060.30
Nederlandse titel Standard Specification for Circular Precast Reinforced Concrete Manhole Sections
Engelse titel Standard Specification for Circular Precast Reinforced Concrete Manhole Sections

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