Material Characterization for Sustainable Concrete Paving Blocks

Wang, XY;Chin, CS;Xia, J

[Wang, Xinyi; Chin, Chee Seong; Xia, Jun] Xian Jiaotong Liverpool Univ, Civil Engn Dept, Suzhou 215123, Peoples R China.
[Chin, Chee Seong; Xia, Jun] Xian Jiaotong Liverpool Univ, Inst Sustainable Mat & Environm, Suzhou 215123, Peoples R China.
[Wang, Xinyi; Chin, Chee Seong; Xia, Jun] Xian Jiaotong Liverpool Univ, Civil Engn Dept, Suzhou 215123, Peoples R China.
[Chin, Chee Seong; Xia, Jun] Xian Jiaotong Liverpool Univ, Inst Sustainable Mat & Environm, Suzhou 215123, Peoples R China.

APPLIED SCIENCES-BASEL

Volume:9 Issue:6Pages:1197 (15 pp.)

DOI:10.3390/app9061197

Publication Year:2019

JCR:Q2;Q3

CAS JCR:3区

ESI Discipline:ENGINEERING

Document Type:Journal Article

Identifier:http://hdl.handle.net/20.500.12791/005546

Abstract

Recycled aggregates have been widely studied and used in concrete products nowadays. There are still many waste materials that can be used as recycled aggregates other than crushed concrete particles. This paper aims to study the property variations of sustainable concrete paving block incorporating different contents of construction wastes. Five different types of waste materials were used in this project, including: recycled concrete coarse aggregate (RCCA), recycled concrete fine aggregate (RCFA), crushed glass (CG), crumb rubber (CB), and ground granulated blast furnace slag (GGBS). According to the test results of the properties of blocks mixed with different levels of wastes materials, it is concluded that adding both RCCA and RCFA in the block can decrease its strength and increase the water absorption. The suggested replacement levels for RCCA and RCFA are 60%% and 20%%, respectively. Mixing crushed glass in the concrete paving blocks as a type of coarse aggregates can improve the blocks' strength and decrease the blocks' water absorption. Addition of crumb rubber causes a significant deterioration of blocks' properties except for its slip resistance.

Keywords

water absorption tensile splitting strength crumb rubber crushed glass recycled concrete aggregate compressive strength Compressive strength Crumb rubber Crushed glass Recycled concrete aggregate Tensile splitting strength Water absorption

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