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Addendum published on 30 June 2015, see Materials 2015, 8(7), 3958-3959.
Open AccessArticle

Properties of Foamed Mortar Prepared with Granulated Blast-Furnace Slag

by Xiao Zhao 1,†, Siong-Kang Lim 2,†, Cher-Siang Tan 3,†, Bo Li 4,†, Tung-Chai Ling 4,*, Runqiu Huang 1,† and Qingyuan Wang 5,†
College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610019, Sichuan, China
Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kuala Lumpur 53100, Malaysia
Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
Construction and Building Materials Research Center, Nano and Advanced Materials Institute Limited, the Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong 999077, China
Institute for Mechanics of Advanced Materials and Structures, Chengdu University, Chengdu 610106, Sichuan, China
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Abdel Magid Hamouda
Materials 2015, 8(2), 462-473;
Received: 28 October 2014 / Accepted: 21 January 2015 / Published: 30 January 2015
Foamed mortar with a density of 1300 kg/m3 was prepared. In the initial laboratory trials, water-to-cement (w/c) ratios ranging from 0.54 to 0.64 were tested to determine the optimal value for foamed mortar corresponding to the highest compressive strength without compromising its fresh state properties. With the obtained optimal w/c ratio of 0.56, two types of foamed mortar were prepared, namely cement-foamed mortar (CFM) and slag-foamed mortar (SFM, 50% cement was replaced by slag weight). Four different curing conditions were adopted for both types of foamed mortar to assess their compressive strength, ultrasonic pulse velocity (UPV) and thermal insulation performance. The test results indicated that utilizing 50% of slag as cement replacement in the production of foamed mortar improved the compressive strength, UPV and thermal insulation properties. Additionally, the initial water curing of seven days gained higher compressive strength and increased UPV values as compared to the air cured and natural weather curing samples. However, this positive effect was more pronounced in the case of compressive strength than in the UPV and thermal conductivity of foamed mortar. View Full-Text
Keywords: foamed mortar; water-to-cement ratio; curing regime; slag; strength; thermal properties foamed mortar; water-to-cement ratio; curing regime; slag; strength; thermal properties
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Zhao, X.; Lim, S.-K.; Tan, C.-S.; Li, B.; Ling, T.-C.; Huang, R.; Wang, Q. Properties of Foamed Mortar Prepared with Granulated Blast-Furnace Slag. Materials 2015, 8, 462-473.

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