NCHRP Report 621:

Acceptance Tests for Surface Characteristics of Steel Strands in Prestressed Concrete

Status: Not for Sale

Size: 141 pages, 8.5 x 11

Publication Year:2009

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Authors:
John S Lawler; James D Connolly; Andrew E N Osborn; Transportation Research Board
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TRB's National Cooperative Highway Research Program (NCHRP) Report 621: Acceptance Tests for Surface Characteristics of Steel Strands in Prestressed Concrete explores tests to identify and measure residues on the surface of steel pre-stressing strands and to establish thresholds for residue ...
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Table of Contents
Select a link below to start reading online free!
Front Matter	i-x
Summary	1-2	(skim)
Background to Strand Bond Uncertainty	3-3	(skim)
Pretreatment and Lubrication	4-6	(skim)
Residual Film	7-7	(skim)
Organization of Document	8-8	(skim)
Quality Control Program Development	9-9	(skim)
Evaluation of Proposed Surface and Chemical Test Methods	10-12	(skim)
Proposed Quality Control Test Methods	13-16	(skim)
Statistical Evaluation of Results	17-18	(skim)
Supplemental Investigations of Strand Bond	19-19	(skim)
Strand Manufacturers	20-20	(skim)
Mechanical Testing	21-21	(skim)
Chemical and Surface Testing	22-24	(skim)
Development of Thresholds	25-28	(skim)
Interpretation of Elemental Analyses Relative to Manufacturing Processes	29-30	(skim)
Development of Quality Control Program for Strand Bond	31-31	(skim)
Thresholds	32-32	(skim)
Computational Tool	33-34	(skim)
Chapter 4 - Conclusions and Recommendations	35-35	(skim)
Future Work	36-36	(skim)
References	37-37	(skim)
Appendix A - Review of Strand Bond Literature	38-38	(skim)
Appendix B - Evaluation of Mechanical and Chemical Test Methods	39-122	(skim)
Appendix C - Specifications for Standard Surface Test Methods	123-128	(skim)
Appendix D - Supplemental Investigations of Strand Bond	129-129	(skim)
Appendix E - Bibliography of Strand Bond	130-130	(skim)
Abbreviations used without definitions in TRB publications	131-131	(skim)

Description

TRB's National Cooperative Highway Research Program (NCHRP) Report 621: Acceptance Tests for Surface Characteristics of Steel Strands in Prestressed Concrete explores tests to identify and measure residues on the surface of steel pre-stressing strands and to establish thresholds for residue types found to affect the strength of the strand's bond to concrete.

NCHRP Report 621:

Acceptance Tests for Surface Characteristics of Steel Strands in Prestressed Concrete

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