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R Guide for Consolidation of Concrete
Choose Product Language English. Guide to Mass Concrete Reapproved Any applicable errata are included with individual documents at the time of purchase. Click here to view the first two pages of this publication – pdf file format. By using certain chemical admixtures ACI Combining values from the two systems may result in nonconformance with this guide. Equipment and methods are now available for fast and efficient consolidation 309r-50 concrete over a wide range of placing conditions. Errata are not included xci collections or sets of documents such as the ACI Collection.
Therefore, each system is to be used independently of the other. It may also have a poor appearance.
309R-05: Guide for Consolidation of Concrete
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 acj for the application of the material it contains. This guide includes information on the mechanism of consolidation and gives recommendations on equipment, characteristics, and procedures for various classes of construction.
Concrete Consolidation in the 21st Century. Compaction of Roller-Compacted Concrete Reapproved 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. We need your help to maintenance this website.
Several methods and techniques are available, the choice depending mainly on the workability of the mixture, placing conditions, and degree of air removal desired. Consolidation is the process of removing entrapped air from freshly placed concrete. Several methods and techniques are available, the choice depending on the workability 309g-05 the mixture, placing conditions, and degree of air removal desired.
Some form of vibration is usually employed.
ACI 309R-05 – Guide for Consolidation of Concrete
If adequate consolidation is not provided for these stiffer mixtures, the strength of the in-place concrete decreases rapidly. Stiffer mixtures require greater effort to achieve proper consolidation. Celik Ozyildirim Timothy P. The paired values stated in inch-pound units and hard SI units are usually not exact equivalents. PDF free access to members. Manual of Acii Inspection.
Size px x x x x If allowed to harden in this condition, 309r-005 concrete will be porous and poorly bonded to the reinforcement. This guide includes information on the mechanism of consolidation and gives recommendations on equipment, characteristics, and procedures for various classes of construction. Consolidation is the process of inducing a closer arrangement of the solid particles in freshly mixed concrete or mortar during placement by the reduction of voids, usually by vibration, centrifugation spinningrodding, spading, tamping, or some combination of these actions.
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Please fill this form, we will try to respond as soon as possible. Reference to this document shall not be made in contract documents. For a listing of and access to all product errata, visit the Errata page.
Thank you for interesting in our services. The American Concrete Institute disclaims any and all responsibility for the stated principles.