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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Shrinkage Reduction Type of Advanced Superplasticizer
Author(s): T. Sugiyama, A. Ohta and Y. Tanaka
Publication: Special Publication
Appears on pages(s): 189-200
Keywords: drying shrinkage; superplasticizers; tension
Abstract:Recently, accompanying the increase in higher strength and flowability of concrete, polycarboxylate-based superplasticizers have attracted much attention. In order to develop an advanced superplasticizer accommo-dating new functions, we attempted to develop polycarboxylate-based high-range water reducing superplasticizers with high durability as a new function. To increase the durability of concrete, we focused on shrinkage reduction, one of the factors affecting durability, and studied various compounds exhibiting shrinkage reduction. We investigated the relationship between their chemical structures and shrinkage reducing effects. In addition, we synthesized a new series of superplasticizers in which these compounds were attached to the structure of various polycarboxylate polymers, and determined the shrinkage reduction effect by testing concrete with these agents. As a result, we have developed a polycarboxylate-based advanced superplasticizer exhibiting excellent shrinkage reduction.
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