TY - JOUR
T1 - Seawater sea-sand engineered/strain-hardening cementitious composites (ECC/SHCC)
T2 - Assessment and modeling of crack characteristics
AU - Huang, Bo Tao
AU - Wu, Jia Qi
AU - Yu, Jing
AU - Dai, Jian Guo
AU - Leung, Christopher K.Y.
AU - Li, Victor C.
N1 - Funding Information:
This study was supported by the Innovation Technology Fund of the Hong Kong Government (No. ITS/077/18FX ) and the Hong Kong Research Grants Council (No. T22-502/18-R ). Bo-Tao Huang acknowledges the support by The Hong Kong Polytechnic University through the Research Institute for Sustainable Urban Development (No. 1-BBWE ) and the Postdoctoral Fellowships Scheme (No. YW4K ). The authors would also thank Mr. Yu-Tian Wang for his help in the analysis of crack characteristics, and Dr. Yu Xiang, Mr. Ke-Fan Weng and Mr. Ji-Xiang Zhu for their assistance in experimental work.
Publisher Copyright:
© 2020 Elsevier Ltd
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/2
Y1 - 2021/2
N2 - Seawater sea-sand Engineered Cementitious Composites (SS-ECC) is a new version of ECC for marine constructions facing the scarcity of freshwater and river/manufactured sand. This study aims to assess and model the crack characteristics of SS-ECC, which are critical for its applications with non-corrosive reinforcements. The influence of sea-sand size, fiber length and fiber dosage on the crack characteristics of SS-ECC was explored. A five-dimensional representation was proposed to assess the overall performance of SS-ECC, by comprehensively considering both the crack characteristics (i.e., crack width and its variation) and the mechanical properties (i.e., compressive and tensile properties). A probabilistic model was also proposed to describe the stochastic nature and evolution of crack width, and it can be used to estimate the critical tensile strain on SS-ECC for a given crack-width limit and cumulative probability. The findings and proposed methods can facilitate the design of SS-ECC in marine and coastal structures.
AB - Seawater sea-sand Engineered Cementitious Composites (SS-ECC) is a new version of ECC for marine constructions facing the scarcity of freshwater and river/manufactured sand. This study aims to assess and model the crack characteristics of SS-ECC, which are critical for its applications with non-corrosive reinforcements. The influence of sea-sand size, fiber length and fiber dosage on the crack characteristics of SS-ECC was explored. A five-dimensional representation was proposed to assess the overall performance of SS-ECC, by comprehensively considering both the crack characteristics (i.e., crack width and its variation) and the mechanical properties (i.e., compressive and tensile properties). A probabilistic model was also proposed to describe the stochastic nature and evolution of crack width, and it can be used to estimate the critical tensile strain on SS-ECC for a given crack-width limit and cumulative probability. The findings and proposed methods can facilitate the design of SS-ECC in marine and coastal structures.
KW - Crack assessment
KW - Crack characteristics
KW - Engineered cementitious composite (ECC)
KW - Non-corrosive reinforcement
KW - Probabilistic modeling
KW - Sea-sand
KW - Seawater
KW - Strain-hardening cementitious composite (SHCC)
UR - http://www.scopus.com/inward/record.url?scp=85096558766&partnerID=8YFLogxK
U2 - 10.1016/j.cemconres.2020.106292
DO - 10.1016/j.cemconres.2020.106292
M3 - Journal article
AN - SCOPUS:85096558766
VL - 140
JO - Cement and Concrete Research
JF - Cement and Concrete Research
SN - 0008-8846
M1 - 106292
ER -