The objective of this study was to determine the influence of admixtures on drying shrinkage and compressive strength of high strength concrete (HSC). Cement paste alone was investigated to remove the effect of aggregate on shrinkage as to the effect of individual admixtures on drying shrinkage of HSC.; This study reveals that the type and amount of admixture are key factors affecting drying shrinkage and compressive strength. The mixtures used showed that most of the drying shrinkage occurs during the first 28 days after mixing.; In this investigation three types of mineral admixtures were used. These are fly ash class F, silica fume, and metakaolin (calcine clay, class N). Also, four types of chemical admixtures produced by either W. R. Grace or Master Builder were used. These are shrinkage reducing admixture, high-range water reducing admixture, low-range water reducing admixture, and a retarder.
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