ACI SP-119

Abstract

<strong>PREFACE</strong> <br>In May, 1978, the Canada Centre for Mineral and Energy Technology (CANMET), in association with the American Concrete Institute, the ACI Eastern Ontario and Quebec Chapter, and the Structural Division of the Canadian Society for Civil Engineering, sponsored a three-day conference in Ottawa on the use of superplasticizers in concrete. Selected papers from the symposium were published as American Concrete Institute special publication SP-62. <br>In 1981, CANMET in association with the above organizations, sponsored a second three-day international conference in Ottawa on the use of superplasticizers in concrete, The proceedings of the conference were published as American Concrete Institute special publication SP-68. <br>In October 1989, CANMET in association with the American Concrete Institute and the ACI Eastern Ontario and Quebec Chapter sponsored the third Wee-day international conference in Ottawa. The purpose of the third conference was to review the progress made since the meetings in 1978 and 1981; and to bring together representatives of the chemical admixtures, cement, and concrete industries to exchange information and to delineate new areas of needed research. The scope of this conference was expanded to include chemical admixtures other than superplasticizers. The proceedings of the conference were published as American Concrete Institute special publication SP-119. <br>A total of 48 papers from more than 15 countries were received and reviewed by an expert panel of ACI reviewers, and 33 were accepted for publication. The cooperation of the authors in accepting the reviewers' suggestions and in revising their manuscripts is greatly appreciated.