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Some form of vibration is usually employed. Consolidation is the process of removing entrapped afi from freshly placed concrete. Errata are not included for collections or sets of documents such as the ACI Collection.
ACI 309R-05 – Guide for Consolidation of Concrete
These items are not eligible for return. Choose Product Language English. Consolidation is the process of removing entrapped air from freshly placed concrete. Please copy and paste this embed script to where you want to embed Embed Script. Click here to view the first two pages of this publication – pdf file format. This guide includes information on the mechanism of consolidation and gives recommendations on equipment, characteristics, and procedures for various classes 309-05 construction.
Celik Ozyildirim Axi P.
R Guide for Consolidation of Concrete
cai The Institute shall not be liable for any loss or damage arising therefrom. Ford Subcommittee Chair Neil A. It will have low strength, high permeability, and poor resistance to deterioration. Please help 309r-5 to share our service with your friends.
ACI Committee Reports, Guides, Standard Practices, and Commentaries are intended for guidance in planning, designing, executing, and inspecting construction. Several methods and techniques are available, the choice depending on the workability of the mixture, placing conditions, and degree of air removal desired.
The American Concrete Institute disclaims any and all responsibility for the stated principles. If adequate consolidation is not provided for acj stiffer mixtures, the strength of the in-place concrete decreases rapidly. By using certain chemical admixtures ACI PDF free access to members. These methods are infrequently used. Stiffer mixtures require greater effort to achieve proper consolidation. Please fill this form, we will try to respond as soon as possible.
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The various consistency tests have been discussed by NevilleVollickand Ferraris If allowed to harden in this condition, the concrete will be porous and poorly bonded to the reinforcement. Reference to this document shall not be made in contract documents. We need your help to maintenance this website. It may also have a poor appearance.
Concrete with a relatively low water content can be readily molded into an unlimited variety of shapes, making it a highly versatile and economical construction material.
The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition. This guide includes information on the mechanism of consolidation and gives recommendations on equipment, characteristics, and procedures for various classes of construction.
Equipment and methods are now available for fast and efficient consolidation of concrete over a wide range of placing conditions. Guide to Mass Concrete Reapproved Mixture proportioning is described in ACI Size px x x x x Combining values from the two systems may result in nonconformance with this guide. When good consolidation practices are combined with good formwork and good form release agents, concrete surfaces have a highly pleasing appearance Fig. All rights reserved including rights of reproduction and use in any form or by any means, including the making of copies by any photo process, or by electronic or mechanical device, printed, written, or oral, or recording for sound or visual reproduction or for use in any knowledge or retrieval system or device, unless permission in writing is obtained from the copyright proprietors.
As the water content of the concrete is reduced, concrete strength, permeability, and other desirable properties improve, provided that the concrete is properly consolidated.
Several methods and techniques are available, the choice depending mainly on the workability of the mixture, placing conditions, and degree of air removal desired.
ACI R – Guide for Consolidation of Concrete – Free Download PDF
Therefore, each system is to be used independently of the other. Concrete Consolidation in the 21st Century.
The paired values stated in inch-pound ack and hard SI units are usually not exact equivalents. Please choose a product format. This document is intended for the use of individuals who are competent to evaluate the significance and limitations of its content and recommendations and who will accept responsibility for the application of the material it contains. Compaction of Roller-Compacted Concrete Reapproved