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Effect of Polypropylene Fiber on Properties of Alkali-Activated Slag Mortar
Joint Authors
Chen, Haiming
Xu, Yangchen
Wang, Pengju
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-01-06
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Alkali-activated slag (AAS) is becoming an increasingly popular building material due to its excellent engineering properties and low CO2 emissions, but its large shrinkage is an important reason to restrict its application and popularization.
This work is aimed to study the possibility of inhibiting the shrinkage of AAS mortar by incorporating polypropylene fiber (PPF).
For this, an experimental study was carried out to evaluate the effects of PPF content on setting time, fluidity, physical properties, mechanical properties, impact resistance, and microstructure of AAS mortar.
The volume content of PPF is 0.05%, 0.1%, 0.15%, and 0.2%.
The working, physical (porosity, water absorption, and bulk density), mechanical, shrinkage, and impact resistance properties of the AAS mortars were evaluated.
The results show that incorporating PPF effectively reduces the shrinkage deformation of AAS mortar, significantly improves its impact resistance, enhances its toughness, and slightly improves its compressive strength in the later stage.
At the same time, PPF delays the initial setting time of AAS mortar and reduces the fluidity, density, porosity, and water absorption of AAS mortar.
SEM results show that the bridging effect of PPF between AAS mortars can inhibit the generation and propagation of cracks, improve the internal microstructure, and enhance the performance of AAS mortar.
American Psychological Association (APA)
Xu, Yangchen& Chen, Haiming& Wang, Pengju. 2020. Effect of Polypropylene Fiber on Properties of Alkali-Activated Slag Mortar. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1121718
Modern Language Association (MLA)
Xu, Yangchen…[et al.]. Effect of Polypropylene Fiber on Properties of Alkali-Activated Slag Mortar. Advances in Civil Engineering No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1121718
American Medical Association (AMA)
Xu, Yangchen& Chen, Haiming& Wang, Pengju. Effect of Polypropylene Fiber on Properties of Alkali-Activated Slag Mortar. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1121718
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121718