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 Status: Withdrawn · Replaced by: ASTM C Buy this standard.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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ASTM Manhole Specifications – National Precast Concrete Association

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Please first log in with a verified email before subscribing to alerts. Concrete products shall be subjected to either steam or water curing. Minimum compressive strength of concrete manhole products covered must meet the requirement. 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 asym and water works.

As the voice of the U. 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.

ASTM C – National Precast Concrete Association

Please first verify your email before subscribing to alerts. Historical Version s – view previous versions of standard.

This standard is also available to be included in Standards Subscriptions. Future products will to be included in Part II in a future revision of this specification. ASTM C and joint materials C opened up new ast, standards for joint materials as gasket material technology evolved.

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It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Link to Active This link will always route to the current Active version of the standard.

Byeight technical committees had been organized, and astk six more were formed. Concrete products shall be subjected to either steam or water curing. The changes made to c4788 steel specifications means less steel. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.

It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

Your Alert Profile lists the documents that will be monitored. Ensuring the separation of human waste from clean drinking water relies on the durability and reliability of underground piping systems. Risers and Conical Tops. ASTM is at the cutting edge of all of these changes; the balance of the members of its technical committees represents the best practitioners in their respective fields.

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. Link to Active This link will always route to the current Active version of the standard.

Standard Specification for Precast Reinforced Concrete Manhole Sections

Development and review of practices and guides cover design, installation, testing, economic evaluation and performance of concrete pipe systems. Leave a Reply Cancel reply Your email address will not be published.

The owner of the project for which these products are specified herein is cautioned to require inspection at the construction site. ASTM C standards for negative pressure tests for manholes. Test methods such as compression and absorption testing shall be performed. C13 has nine technical subcommittees that maintain jurisdiction over these standards. Active view current version of standard. Beyond the critical importance of protecting human health and preventing contagious disease, properly designed and produced manholes ensure the safety of workers who handle precast products, and in the long run guarantee quality precast products that comply with accepted industry practices and prevent unnecessary increases in cost to the consumer.

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The scope of C includes structures used in precast sewer, drainage and water works. Compliance with ASTM standards protects the integrity of precast concrete pipe systems and the consumer.

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

Work Item s – c4478 revisions of this standard. Overdesigning reinforcement translates into an unnecessary increase in manhole manufacturing costs, which in turn results in increased costs to consumers.

Under the jurisdiction of Subcommittee C Proceed to Checkout Continue Shopping. 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.

This standard is not included in any packages. 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.