Tensile and Cracking Behaviors of Strain-Hardening Cement Composite (SHCC) with Fluosilicate Based Shrinkage-Reducing Agent (SRA)

Abstract:

This paper provides the results of direct tensile tests for strain-hardening cement composite (SHCC) to investigate the influence of fluosilicate based shrinkage-reducing agent (SRA) on the tensile and cracking behaviors of SHCC material under direct tension. The specified compressive strength of the SHCC material is 50MPa. The adding ratio of fluosilicate based SRA for SHCC material is 2.5 and 5.0%. Two mixitures of SHCC with 2.2% polyvinyl alcohol (PVA) fibers at the volume fraction were mixed; two mixtures with SRA and one mixture of conventional SHCC material. To evaluate the tensile and cracking behaviors of SHCC materials, two dumbbell-shaped tensile specimens for each mixture were manufactured and tested in direct tension. Test results show that the addition of fluosilicate based SRA improved direct tensile and cracking behaviors of SHCC materials with rich mixture. This phenomenon is noticeable for SHCC with higher volume of SRA.

• Periodical: Applied Mechanics and Materials (Volume 525)
• Pages: 473-477
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.525.473
• Online since: February 2014
• Authors: Seung Ju Han*, Seok Joon Jang, Zhong Jie Yu, Hyun Do Yun
• Keywords: Cracking Behavior, Fluosilicate Based Compound, Shrinkage Reducing Agent (SRA), Strain-Hardening Cement Composite (SHCC), Tensile Response

References

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