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 Status: Withdrawn · Replaced by: ASTM C Buy this standard.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.

Author: Kizshura Aragor
Country: Angola
Language: English (Spanish)
Genre: Personal Growth
Published (Last): 28 April 2009
Pages: 292
PDF File Size: 5.14 Mb
ePub File Size: 7.65 Mb
ISBN: 280-1-25012-119-8
Downloads: 71303
Price: Free* [*Free Regsitration Required]
Uploader: Vukora

As a specific example, consider the skyrocketing cost of steel as it relates to precast concrete reinforcement.

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

Asstmeight technical committees had been organized, and in six more were formed. Test methods such as compression and absorption testing shall be performed.

As the voice of the U. 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. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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.

The scope of C includes structures used in precast sewer, drainage and water works.

ASTM Manhole Specifications

Please first log in with cc478 verified email before subscribing to alerts. 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.

  DIAS DE RADIO CARLOS ULANOVSKY DESCARGAR PDF

Historical Version s – view previous versions of standard. 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 atsm of products used for the assembly and construction of circular vertical precast reinforced concrete manholes and structures used in sewer and water works.

Proceed to Checkout Continue Shopping. 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.

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. Minimum compressive strength of concrete manhole products covered must meet the requirement. 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.

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 does astn give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Add to Alert Aatm. C13 has nine technical subcommittees that maintain jurisdiction over these standards. 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.

This abstract is a brief summary of the referenced standard. Note 1—Future products will to be included in Part II in a future revision of this specification. Experience has shown, however, that the successful performance of this product depends upon the asm selection of the product strength, type of foundation and backfill, and care in the field installation of the manhole products and connecting pipes.

  EMANUEL DERMAN MY LIFE AS A QUANT PDF

ASTM C – National Precast Concrete Association

Concrete products shall be subjected to either steam or water curing. If the document is revised or amended, you will be notified by email. The following specifications apply to manhole connectors and joints: Overdesigning reinforcement translates into an unnecessary increase in manhole manufacturing costs, which in turn results in increased costs to consumers.

Ensuring the separation of human waste from clean drinking water relies on the durability and reliability of underground piping systems. 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. In addition to the O-ring gasket cross section, the profile-wall gasket cross section was developed see ASTM C listed below. Standards Subsctiption may be the perfect solution.

Many NPCA members produce precast concrete manholes, as these products are used for so many underground applications such as storm c4788 sanitary sewer access, lift stations and utilities.

Subscription pricing is determined by: The following specifications apply to manhole connectors and joints:. Reinforced concrete shall consist of asgm 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.

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. The changes made to hoop steel specifications means less steel. Your email address will not be published.