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R Guide for Consolidation of Concrete
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We are a non-profit group that run this website to share documents. Please choose a product format. 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. 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.
Guide to Mass Concrete Reapproved By using certain chemical admixtures ACI Combining values from the two systems may result in nonconformance with this guide. The full and complete returned product will be accepted if returned within 60 days of receipt and in salable condition.
Some form of vibration is usually employed. Please fill this form, we will try to respond as soon as possible. This guide includes information on the mechanism of consolidation and gives recommendations on equipment, characteristics, and procedures for various classes of construction. Manual of Concrete Inspection. As the water content of the concrete is reduced, concrete strength, permeability, and other desirable properties improve, provided that the concrete is properly consolidated.
Consolidation is the process of removing entrapped air from freshly placed concrete. The various consistency tests have been discussed by NevilleVollickand Ferraris Some form of vibration is usually employed. Consolidation is the process of removing entrapped air from freshly placed concrete.
Compaction of Roller-Compacted Concrete Reapproved If allowed to harden in this condition, the concrete will be porous and poorly bonded to the reinforcement.
Please copy and paste this embed script to where you want to embed Embed Script. Several methods and techniques are available, the choice depending on the workability of the mixture, acii conditions, and degree of air removal desired. Click here to view the first two pages of this publication – pdf file format. Several methods and techniques are available, the choice depending mainly on the workability of the mixture, placing conditions, and degree of air removal desired.
Equipment and methods are now available for fast and efficient consolidation of concrete over a wide range of placing conditions. Acj Consolidation in the 21st Century. It may also have a poor appearance. Any applicable errata are included with individual documents at the time of purchase. It will have low strength, high permeability, and poor resistance to deterioration. ACI Committee Reports, Guides, Standard Practices, and Commentaries are intended for guidance in planning, designing, executing, and inspecting construction.
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ACI 309R-05 – Guide for Consolidation of Concrete
When good consolidation practices are combined with good formwork and good form release agents, concrete surfaces have a highly pleasing appearance Fig. This guide includes information on the mechanism of consolidation and gives recommendations on equipment, characteristics, and procedures for various classes of construction. Stiffer mixtures require greater effort to achieve proper consolidation.
PDF free access to members. The paired values stated in inch-pound units and hard SI units are usually not exact equivalents. Choose Product Language English. 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.
Reference to this document shall not be made in contract documents. Therefore, each system is to be used independently of the other. Mixture proportioning is described in ACI For a listing of and access to all product errata, visit the Errata page. Olson Mike Thompson Bradley K. Thank you for interesting in our services. If adequate consolidation is not provided for these stiffer mixtures, the strength of the in-place concrete decreases rapidly.
Ford Subcommittee Chair Neil A. Size px x x x x