_STP_713-1984.pdf

CORROSION OF RE,N FORC,NGSTEEL IN CONCRETE A symposium sponsored by ASTM Committee G-1 on Corrosion of Metals AMERICAN SOCIETY FOR TESTING AND MATERIALS Bal Harbour,Fla.,4-5 Dec.1978 ASTM SPECIAL TECHNICAL PUBLICATIONS 713 D.E.Tonini,American Hot Dip Galvanizers Association,Inc.,and J.M.Gaidis,W.R.Grace&Co.,editors 04-713000-27,igtl+AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race Street,Philadelphia,Pa.19103 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:32:18 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Copyright by AMERICAN SOCIETY FOR TESTING AND MATERIALS 1980 Library of Congress Catalog Card Number:80-65020 NOTE The Society is not responsible,as a body,for the statements and opinions advanced in this publication.Printed in Baltimore,Md.August 1980 Second Printing,Baltimore,Md.July 1984 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:32:18 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Foreword The symposium on Corrosion of Reinforcing Steel in Concrete was presented at Bal Harbour,Fia.,4-5 Dec.1978.The American Society for Testing and Materials Committee G-1 on Corrosion of Metals through its Subcommittee G01.14 on Reinforcing Steel in Concrete sponsored the sym-posium.D.E.Tonini,Albert Cook,and H.M.Maxwell presided as sym-posium cochairman.D.E.Tonini,American Hot Dip Galvanizers Associ-ation,Inc.,and J.M.Gaidis,W.R.Grace&Co.,are editors of this publication.Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:32:18 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Related ASTM Publications Stress Relaxation Testing,STP 676(1979),04-676000-23 Stress Corrosion CrackingThe Slow Strain-Rate Technique,STP 665(1979),04-665000-27 Corrosion Fatigue Technology,STP 642(1978),04-642000-27 Chloride Corrosion of Steel in Concrete,STP 629(1977),04-629000-27 Corrosion,Wear,and Interfaces with Corrosion,STP 567(1974),04-567000-29 Corrosion in Natural Environments,STP 558(1974),04-558000-27 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:32:18 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.A Note of Appreciation to Reviewers This publication is made possible by the authors and,also,the unheralded efforts of the reviewers.This body of technical experts whose dedication,sacrifice of time and effort,and collective wisdom in reviewing the papers must be acknowledged.The quality level of ASTM publications is a direct function of their respected opinions.On behalf of ASTM we acknowledge with appreciation their contribution.ASTM Committee on Publications Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:32:18 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Editorial Staff Jane B.Wheeler,Managing Editor Helen M.Hoersch,Associate Editor Helen Mahy,Assistant Editor Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:32:18 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.Contents Introduction 1 Electrochemistry of Reinforcing Steel in Salt-Contaminated Concretec.E.LOCKE AND A.SIMAN 3 Laboratory Testing and Monitoring of Stray Current Corrosion of Prestressed Concrete in Seawateri.CORNET,D.PIRTZ,M.POLIVKA,Y.GAU,AND A.SHIMIZU 17 Corrosion of Steel Tendons Used in Prestressed Concrete Pressure Vesselsi.c.GRIESS AND D.I.NAUS 32 Influence of Selected Chelating Admixtures upon Concrete Cracking Due to Embedded Metal Corrosions-s.YAU AND W.H.HARTT 51 Improved Test Methods for Determining Corrosion Inhibition by Calcium Nitrite in ConcreteJ.M.GAIOIS,A.M.ROSENBERG,AND I.SALEH 64 Degradation of Metal-Fiber-Reinforced Concrete Exposed to a Marine EnvironmentR.RIDER AND R.HEIDERSBACH 75 Corrosion of Steel in Internally Sealed Concrete Beams Under LoadL.D.FLICK AND J.P.LLOYD 93 Durability of Galvanized Steel in ConcreteK.W.J.TREADAWAY,B.L.BROWN,AND R.N.COX 102 Measurement Techniques and Evaluation of Galvanized Reinforcing Steel in Concrete Structures in BermudaD.STARK 132 Passivation of Galvanized Reinforcement by Inhibitor Anions D.J.H.CORDEROY AND H.HERZOG 142 Critique of Testing Procedures Related to Measuring the Performance of Galvanized Steel Reinforcement in Concrete I.CORNET AND B.BRESLER 160 Summary 196 Index 201 Copyright by ASTM Intl(all rights reserved);Sun Dec 27 13:32:18 EST 2015Downloaded/printed byUniversity of Washington(University of Washington)pursuant to License Agreement.No further reproductions authorized.STP713-EB/Aug.1980 Introduction The effects of corrosion of reinforcing steel in concrete