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Jul 6, 2017
Mechanical Behaviors of Soilcrete Created from Soils of Tam Bang and Vam Dinh Bridges Simulating Jet Grouting Technology
Authors: Hoang-Hung Tran-Nguyen [email protected] and Chuong Hong Quach [email protected]Author Affiliations
Publication: Grouting 2017
Abstract
The current techniques to reinforce bridge approaching embankments reducing settlement are still ineffective and less sustainable. Jet Grouting has high potential application to mitigate settlement but has limit applications. This paper investigated mechanical behaviors of soilcrete created from the in-situ soils in the Mekong Delta. Cement PCB40 (A), cement mixed with 10% slag (B), and cement mixed with 50% slag (C) were used. Water:cement (w:c) ratios were 1:1 and 1:0.7 with a designed replacement ratio of cement slurry to the in-situ soils of 50%. About 200 specimens were made in the laboratory and cured at various curing times to determine soilcrete characteristics. The results show that (1) qu at a curing time of 3 days higher 10 times than those of the in-situ soils; (2) E50 varying from 43 to 147 times to qu; (3) Strain at failure varying 1-3%; (4) qu increasing in percentage of slag; (5) a w/c of 1/0.7 providing suitable strength and viscosity.
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© 2017 American Society of Civil Engineers.
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Published online: Jul 6, 2017
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Associate Professor, Bridge and Highway Engineering, Dept. of Civil Engineering, Ho Chi Minh City Univ. of Technology, Ho Chi Minh City, Vietnam. E-mail: [email protected]
Graduate Student, Bridge and Highway Engineering, Dept. of Civil Engineering, Ho Chi Minh City Univ. of Technology, Ho Chi Minh City, Vietnam. E-mail: [email protected]
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