Influence of CaO-Based Expansive Agent on the Deformation Behavior of High Performance Concrete

Shou Zhi Zhang; Qian Tian; An Qun Lu

doi:10.4028/www.scientific.net/AMM.438-439.113

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 438-439Influence of CaO-Based Expansive Agent on the...

Influence of CaO-Based Expansive Agent on the Deformation Behavior of High Performance Concrete

Abstract:

In order to improve the volume stability of high performance concrete, the effects of deformation behavior of high performance concrete containing CaO-based expansive agent were investigated. Concrete samples prepared without or with CaO-based expansive agent were compared through expansion under water curing at 20°C, drying shrinkage and autogenous shrinkage measurements. According to the experimental and analytical results, the new type expansive agent can control volume stability for high performance concrete. The addition of 10% CaO-based expansive agent not only built effective expansion in high performance concrete whatever under saturated condition or under sealed condition, but also substantially reduced its drying shrinkage.

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Periodical:

Applied Mechanics and Materials (Volumes 438-439)

Pages:

113-116

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.438-439.113

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Online since:

October 2013

Authors:

Shou Zhi Zhang, Qian Tian, An Qun Lu

Keywords:

Autogenous Shrinkage, CaO-Based Expansive Agent, Drying Shrinkage, Expansion

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