Abstract
It is indicated that the risk of early age shrinkage cracking on highstrength self-compacting concrete (SCC) increases due to autogenous shrinkage caused by low water-to-cement ratio (w/c) and high cement content. For the purpose of reducing the shrinkage strain of high-strength SCC, three kinds of shrinkage-reducing concrete materials, shrinkage-reducing admixture (SRA), blast furnace slag aggregate (BFS) and limestone aggregates were examined. It was found that these materials each showed excellent shrinkage-reducing effect better than each ordinary material when they were used separately. In addition, the authors have found that the shrinkage-reducing mechanisms were individually different and the shrinkage-reducing effect was approximately 45% to 61% when used all together.
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Saito, K., Kinoshita, M., Umehara, H., Yoshida, R. (2010). Properties of Low-Shrinkage, High-Strength SCC Using Shrinkage-Reducing Admixture, Blast Furnace Slag and Limestone Aggregates. In: Khayat, K., Feys, D. (eds) Design, Production and Placement of Self-Consolidating Concrete. RILEM Bookseries, vol 1. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9664-7_24
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DOI: https://doi.org/10.1007/978-90-481-9664-7_24
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