ASTM C478 PDF

ASTM Manhole Specifications technical questions received here at the National Precast Concrete Association, C, “Standard [ ]. Of all the ASTM-related technical questions received here at the National Precast Concrete Association, C, “Standard Specification for. Standard Specification for Precast Reinforced Concrete Manhole Sections. Status: Withdrawn · Replaced by: ASTM C Buy this standard. Price: SEK.

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Standard Specification for Precast Reinforced Concrete Manhole Sections

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This standard satm not included in any packages. Many NPCA members produce precast concrete manholes, as these products are used for so many underground applications such as storm and sanitary sewer access, lift stations and utilities. As the voice of the U. The changes made to hoop steel specifications means less steel. The owner of the project for which these products are specified herein is cautioned to require inspection at the construction site.

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

ASTM Manhole Specifications – National Precast Concrete Association

The committee meets once a year, with approximately members attending over three days of technical meetings. Reinforced concrete shall consist of cementitious materials, mineral aggregates, zstm water, in which steel reinforcement has been embedded in such a manner so that the steel reinforcement and concrete act together. Concrete products shall be subjected to either steam or water curing.

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Work Item s – proposed revisions of this standard. Ensuring the separation of human waste from clean drinking water relies on the durability and reliability of underground piping systems. Risers and Conical Tops.

The ASTM C standard contains the requirements for the manufacture and purchase requirements of products used for the asgm and construction of circular, vertical precast concrete manholes and structures. 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.

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.

We have no amendments or corrections for this standard. Link to Active This link will always route to the current Active version of the standard. Referenced Documents purchase separately The documents listed asttm are axtm within the subject standard but are not provided as part of the standard.

Committee C13 has been around a long c748. The scope of C includes structures used in precast sewer, drainage ast water works. Subscription pricing is determined by: Work Item s – proposed revisions of this standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Under the jurisdiction of Subcommittee C Leave a Reply Cancel reply Your email address will not be published.

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Overdesigning reinforcement translates into an unnecessary increase in manhole manufacturing costs, which in turn results in increased costs to consumers. 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.

Your Alert Profile lists the documents that will be monitored. Test c4778 such as compression and absorption testing shall be performed.

Historical Version s – view previous versions of standard. Concrete products shall be subjected to either steam or water curing. The aggregates shall be sized, graded, proportioned, and mixed with such proportions of cementitious materials and water as will asym as homogeneous concrete mixture of such quality that the products will conform to the test and design requirements.

It is more forgiving than other gaskets and is becoming more the norm. These standards play a pre-eminent role in all aspects important to the effective standardization of concrete pipe, including material specifications, test methods and installation practices.