ASTM C478 PDF

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 Status: Withdrawn · Replaced by: ASTM C Buy this standard.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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This abstract is a brief summary of the referenced standard. Atsm C13 has been around a long time. C47 Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The following specifications apply to manhole connectors and joints:. The ASTM C standard contains the requirements for the manufacture and purchase requirements of products used for the assembly and construction of circular, vertical precast concrete manholes and structures.

Development and review of practices and guides cover design, installation, testing, economic evaluation and performance of concrete pipe systems. The emergence of the Clean Water Act established asym basic structure for regulating discharges of pollutants into the waters of the United States and regulating quality standards for surface waters.

This specification is a manufacturing and purchase satm 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. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.

ASTM C – 18 Standard Specification for Circular Precast Reinforced Concrete Manhole Sections

Under the jurisdiction of Subcommittee C Future products will to be included in Part II in a future revision of this specification. The owner of the project for which these products are specified herein is cautioned to require inspection at the x478 site.

Compliance with ASTM standards protects the integrity of precast concrete pipe systems and the consumer. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.

Link to Active This link will always route to the current Active version of the standard. Xstm email address will not be published. In addition to the O-ring gasket cross section, the profile-wall gasket asm section was developed see ASTM C listed below.

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As a specific example, consider the skyrocketing cost of steel as it relates to precast concrete reinforcement. Leave a Reply Cancel reply Your email address will not be published. ASTM C specifications are minimum requirements for manholes, and engineers can specify additional reinforcement to resist point loading.

The owner of the project for which these products are specified herein is cautioned to require inspection at the construction site. 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. Experience has shown, however, that the successful performance of this product depends upon the proper selection v478 the product strength, type of foundation and backfill, and care in the asttm installation of the manhole products and connecting pipes.

Note 2—This specification aatm 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.

Note 1—Future products will to be included in Part II in a future revision of this specification. ASTM C standards for negative astn tests for manholes. Minimum compressive strength of concrete manhole products covered must meet the requirement. 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.

Standard Specification for Precast Reinforced Concrete Manhole Sections

Please first log in with a verified email before subscribing to alerts. 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. Risers and Conical Tops.

Test methods such as compression and absorption testing shall be performed. Work Item s – proposed revisions of this standard. 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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

To improve the testing of manhole section gaskets, the discussions in C led to the profile wall gasket, a connection with no notch that can be reset in the manhole. 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. Your Alert Profile lists the documents that will be monitored. Standards Subsctiption may be the perfect solution. Ensuring the separation of human waste from clean drinking water relies on the durability and reliability of underground piping systems.

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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.

Aggregates shall conform to the specificationexcept that the requirements for gradation shall not apply. Subscription pricing is determined by: The committee meets once a year, with approximately members attending c48 three days of technical meetings. Concrete products shall be subjected to either steam or water curing. Precast specifying engineers and precast producers need to be up to date on ASTM standards, because construction material technology, manufacturing and installation practices, testing techniques, and state and federal regulations are continuously evolving.

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. Many NPCA members produce precast concrete manholes, as these products are used for so many underground applications such as storm and sanitary sewer access, atm stations and utilities. Active view current version of standard.

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. Understanding and supporting ASTM standards The emergence of the Clean Water Act established the basic structure for regulating discharges of pollutants into the waters of the United States and regulating quality standards for surface waters.

Note 1—Future products will to be included in Part II in a future revision of this specification. The following specifications apply to manhole connectors and joints: