Effect of Additives on the Rheological and Mechanical Properties of Microfine-Cement-Based Grout
Joint Authors
Qiao, Wei-Guo
Zhang, Shuai
Li, Yanzhi
Xi, Kai
Chen, Pengcheng
Source
Advances in Materials Science and Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-08-27
Country of Publication
Egypt
No. of Pages
10
Abstract EN
Enhancement of the fluidity and mechanical performance of grouting materials has proven to be an effective method of seepage prevention in geotechnical engineering.
In this research, a microfine-cement-based grout mixed with microfine fly ash (MFA), nano-CaCO3 (NC), and superplasticizer (SP) was designed to improve the rheological and mechanical properties of grouting materials, and the particle size distribution, fluidity, spreading ability, bleed capacity, setting time, and mechanical properties were studied.
A water/solid (W/S) ratio of 1.2 was selected, and the contents of MFA, NC, and SP by mass of microfine cement (MC) were 0–40%, 0–2.0%, and 1.5%, respectively.
The results showed that MFA and 1.5% SP improved the fluidity and spreading ability of fresh grouts, while prolonging the setting time.
The addition of NC can increase the yield stress and plastic viscosity and decrease the fluidity and spreading ability; nevertheless, it obviously enhances the stability and shortens the setting time of grouts.
The addition of MFA and 1.5% SP reduced the compressive strength of hardened grouts; however, the addition of NC improved the mechanical properties.
American Psychological Association (APA)
Zhang, Shuai& Qiao, Wei-Guo& Li, Yanzhi& Xi, Kai& Chen, Pengcheng. 2019. Effect of Additives on the Rheological and Mechanical Properties of Microfine-Cement-Based Grout. Advances in Materials Science and Engineering،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1119371
Modern Language Association (MLA)
Zhang, Shuai…[et al.]. Effect of Additives on the Rheological and Mechanical Properties of Microfine-Cement-Based Grout. Advances in Materials Science and Engineering No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1119371
American Medical Association (AMA)
Zhang, Shuai& Qiao, Wei-Guo& Li, Yanzhi& Xi, Kai& Chen, Pengcheng. Effect of Additives on the Rheological and Mechanical Properties of Microfine-Cement-Based Grout. Advances in Materials Science and Engineering. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1119371
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119371