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

Open AccessArticle
Materials 2015, 8(2), 462-473; doi:10.3390/ma8020462

Properties of Foamed Mortar Prepared with Granulated Blast-Furnace Slag

1,†
,
2,†
,
3,†
,
4,†
,
4,* , 1,†
and
5,†
1
College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610019, Sichuan, China
2
Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kuala Lumpur 53100, Malaysia
3
Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Malaysia
4
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
5
Institute for Mechanics of Advanced Materials and Structures, Chengdu University, Chengdu 610106, Sichuan, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Abdel Magid Hamouda
Received: 28 October 2014 / Accepted: 21 January 2015 / Published: 30 January 2015
View Full-Text   |   Download PDF [1095 KB, uploaded 30 January 2015]   |  

Abstract

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
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

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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