期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 125, 期 -, 页码 974-980出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.08.119
关键词
Lime mortar; Sticky rice sol-gel; Microstructure; Surface fractal analysis; Microscopic mechanism
资金
- Tsinghua University [2014Z01004]
This paper is dedicated to studying the effect of sticky rice sol-gel on the microstructure (including pore structure and texture) and properties of lime mortar. Uniaxial compressive strength tests, scanning electron microscopy (SEM), and mercury intrusion porosimetry (MIP) were utilized to investigate the macroscopic behaviors and microstructure, respectively. Based on the MIP data, a surface fractal dimension analysis is performed to study the impact of sticky rice sol-gel on pore structure. The addition of sticky rice sol-gel is demonstrated to improve the uniaxial compressive strength of lime mortar. The SEM, MIP and surface fractal dimension analysis results show that the addition of sticky rice sol-gel facilitates the formation of compact texture, fine pore structure and elevates the bonding strength of the lime mortar. A microstructrual mechanism is proposed to explain how properties of the lime mortar are affected by the addition of sticky rice sol-gel. (C) 2016 Elsevier Ltd. All rights reserved.
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