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ACI 309.3R

Guide to Consolidation of Concrete in Congested Areas

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Organization: ACI
Publication Date: 1 January 1992
Status: inactive
Page Count: 10
scope:

INTRODUCTION

Many concrete structures such as those with seismic provisions, post-tensioning, and high-strength concrete are difficult to consolidate because of congested areas within the formwork. This congestion can result in structural inadequacy and time-consuming and expensive remedial work.

Various techniques have been employed to alleviate this type of problem. This document presents an overview of the factors contributing to the problem, the consequences of inappropriate concrete procedures in these areas, and recommended practices to minimize the problem.

As a prerequisite to successful concreting in congested areas or difficult placing conditions, it is important that architects/engineers become more aware of how their designs will be constructed, and that constructors become more aware of special procedures and necessary precautions. Most importantly, communication between the architect/engineer and constructor is essential to insure that the design details, construction materials, and procedures are compatible.

Document History

ACI 309.3R
January 1, 1992
Guide to Consolidation of Concrete in Congested Areas
INTRODUCTION Many concrete structures such as those with seismic provisions, post-tensioning, and high-strength concrete are difficult to consolidate because of congested areas within the formwork....
January 1, 1992
Guide to Consolidation of Concrete in Congested Areas
A description is not available for this item.

References

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