The Effect of Shrinkage-Compensation on the Performance of Strain-Hardening Cement Composite (SHCC)

Seok-Joon Jang, Ji-Hyeon Kim, Sun-Woo Kim, Wan-Shin Park and Hyun-Do Yun
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Seok-Joon Jang: Research Institute for Infrastructure Performance, Korea Infrastructure Safety Corporation, Jinju 52856, Korea
Ji-Hyeon Kim: Department of Architectural Engineering, Chungnam National University, Daejeon 34134, Korea
Sun-Woo Kim: Department of Construction Engineering Education, Chungnam National University, Daejeon 34134, Korea
Wan-Shin Park: Department of Construction Engineering Education, Chungnam National University, Daejeon 34134, Korea
Hyun-Do Yun: Department of Architectural Engineering, Chungnam National University, Daejeon 34134, Korea

Sustainability, 2019, vol. 11, issue 5, 1-14

Abstract: This study investigated the effects of shrinkage compensation on the tensile and cracking responses of strain-hardening cement composite (SHCC) by adding calcium sulfoaluminate (CSA)-based expansive additive (EXA) to the mixture. Such responses are closely related to the durability of concrete structures, of dumbbell-shaped SHCC specimens, and reinforced SHCC ties. For this study, two SHCC mixtures and a conventional concrete mixture with a specific compressive strength value of 30 MPa were prepared and measured in terms of shrinkage history, compressive strength, flexural strength, and direct tensile strength. The test results show that the mechanical properties of shrinkage-compensated SHCC with 10% CSA-based EXA are superior to those of conventional SHCC and concrete mixtures. Also, reinforced tension ties with shrinkage-compensated SHCC exhibited the best multiple cracking and tension-stiffening behavior among the three types of tension ties tested. The results show that shrinkage compensation using CSA-based EXA in SHCC with rich mixture is effective for resisting crack damage. Shrinkage-compensated SHCC may be used for civil infrastructure facilities that require high levels of durability and are exposed to extreme environments.

Keywords: strain-hardening cement composite (SHCC); shrinkage; tensile behavior; multiple cracks (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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