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Title: 524R-08 Guide to Portland Cement-Based Plaster
Author: ACI Committee 524
Year of Publication: 2008
Number of Pages: 40
This document is: Active
Nonmember Price: $64.50
ACI Member Price: $39.00
Order Code: 52408
Abstract: Click here to view the first few pages of this publication - pdf file format
This guide provides information on the plastering process. The facets of plastering covered are the prequalification of materials, plaster tool and equipment requirements, plaster mixture proportions, plaster application procedures, types of finishes, and troubleshooting and repair. Portland cement-based plastering differs in many ways from that of the concrete trade. Differences in terminology are of key importance; therefore, a familiarization of plastering terminology is needed. Definitions of plastering terms are provided for this reason. This guide is intended for use by architects, engineers, designers, specification writers, contractors, plasterers, laboratory personnel, and public authorities for familiarization with the plastering processes and as an aid in specification writing. Keywords: admixture; base; bond; brown coat; cement; cracking; curing;finish coat; furring; hydration; masonry; plaster; proportion; reinforcement; scratch coat; shrinkage; stucco; texture.
Contents: Chapter 1—Introduction and scope, p. 524R-2 1.1—Introduction 1.2—Scope Chapter 2—Definitions, p. 524R-3 Chapter 3—Desirable properties of portland cement-based plaster, p. 524R-9 3.1—Introduction 3.2—Fresh plaster 3.3—Hardened plaster Chapter 4—Portland cement-based plaster materials, p. 524R-10 4.1—Introduction 4.2—Cements 4.3—Lime 4.4—Aggregates 4.5—Water 4.6—Admixtures 4.7—Fibers 4.8—Bonding agents 4.9—Polymers Chapter 5—Design considerations for plaster bases, p. 524R-12 5.1—Introduction 5.2—Design considerations for ceilings 5.3—Spacing considerations for supports 5.4—Sheathing 5.5—Stress relief 5.6—Design considerations for reduction of water intrusion Chapter 6—Metal lath plaster bases, p. 524R-16 6.1—Introduction 6.2—Weather-barrier backing Chapter 7—Lathing accessories, p. 524R-17 7.1—Introduction 7.2—Outside corner reinforcements 7.3—Inside corner accessory 7.4—Casing beads 7.5—Screeds 7.6—Stress-relief joints Chapter 8—Installation of metal lath, p. 524R-20 8.1—Introduction 8.2—Installation of metal lath plaster base 8.3—Attachment of metal lath to framework 8.4—Attachment of metal lath to solid base Chapter 9—Solid substrate plaster bases, p. 524R-21 9.1—Introduction 9.2—Concrete 9.3—Concrete masonry 9.4—Clay masonry 9.5—Surface-applied bond coatings 9.6—Surface-applied bonding agents 9.7—Integrally mixed bonding agents Chapter 10—Proportioning and mixing of portland cement-based plaster, p. 524R-23 10.1—Introduction 10.2—Mixture proportions 10.3—Batching and mixing Chapter 11—Application of portland cementbased plaster, p. 524R-24 11.1—Approval and acceptance of plaster base 11.2—Application of plaster 11.3—Application of coats Chapter 12—Plaster finishes, p. 524R-27 12.1—Introduction 12.2—Color pigment finishes 12.3—Finish-coat textures Chapter 13—Curing, p. 524R-32 Chapter 14—Testing, p. 524R-33 14.1—Introduction 14.2—Evaluating materials 14.3—Test methods for evaluating hardened plaster 14.4—Evaluating workmanship Chapter 15—Troubleshooting and repair, p. 524R-34 15.1—Introduction 15.2—Cracking 15.3—Weak plaster 15.4—Debonding and delamination 15.5—Discoloration of plaster 15.6—Long-term deterioration Chapter 16—References, p. 524R-39 16.1—Referenced standards and reports 16.2—Cited references
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