EFFECTS OF NANO-CLAY ON THE PROPERTIES OF MORTAR WITH HIGH-VOLUME FLY ASH

WANG Yan; TONG Yueping; ZHANG Shaohui; JING Yao; HU You

doi:10.13204/j.gyjz202002018

Volume 50 Issue 2

Feb. 2020

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WANG Yan, TONG Yueping, ZHANG Shaohui, JING Yao, HU You. EFFECTS OF NANO-CLAY ON THE PROPERTIES OF MORTAR WITH HIGH-VOLUME FLY ASH[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(2): 119-123. doi: 10.13204/j.gyjz202002018

Citation:

WANG Yan, TONG Yueping, ZHANG Shaohui, JING Yao, HU You. EFFECTS OF NANO-CLAY ON THE PROPERTIES OF MORTAR WITH HIGH-VOLUME FLY ASH[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(2): 119-123. doi: 10.13204/j.gyjz202002018

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EFFECTS OF NANO-CLAY ON THE PROPERTIES OF MORTAR WITH HIGH-VOLUME FLY ASH

doi: 10.13204/j.gyjz202002018

1. College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. China Architecture Design & Research Group, Beijing 100044, China

Received Date: 2019-11-10

Abstract

Abstract

In the paper, nano-clay (NC) was used to modify the properties of cementitious system with high-volume fly ash (FA) to overcome the disadvantage of low strength. The effects of NC content (0.6%~1.0%), water-binder ratio (0.4, 0.45, 0.5), and fly ash (FA) content (50%~70%) on the fluidity, compressive strength and flexural strength of the cementitious system with high-volume fly ash were studied. The results showed that the more content of FA, the higher fluidity of the system, and the lower compressive strength and flexural strength. The incorporation of NC resulted in a decrease in the fluidity of the FA cementitious system, and the more content of NC, the lower the fluidity with the decreasing range between 13.0% and 29.6%. NC could significantly improve the compressive strength of high-volume FA cementitious system within 28 days, which was between 37.5% and 49.5%. For the high-volume FA cementitious system with 60% FA, the highest compressive strength was obtained with 0.6% NC. Meanwhile, the NC increased the flexural strength of the FA cementitious system by between 15% and 20%.
- high-volume fly ash,
- nano-clay,
- fluidity,
- mechanical properties

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References(15)

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