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The effect of water-cement ratio in compressive and abrasion strength of the nano silica concretes

Shamsai, A ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. Publisher: 2012
  3. Abstract:
  4. Development and construction of hydraulic structures like dams, the concrete durability in these kinds of structures has gained special attention. One of the crucial factor in concrete technology is it durability in hydraulic structures. Concrete has to resist against abrasion due to the crash of particles carried by water. To enhance the abrasion resistance of concrete different methods have been offered. In the present stud, the role of water-cement ratio in compressive and abrasion strength of nano silica concrete was investigated. The constructed concrete samples with 3% nano silica and water-cement ratios of 0.33, 0.36, 0.40, 0.44 and 0.50 were experimented. Other design features remained fixed in all concrete samples. The compressive strength of block samples of 15×15×15cm 3 were evaluated in duration of 7, 28 and 91 days. The abrasion strength of the same block samples were tested after 28 days. The results of compressive strength experiment showed that due to reduction of water-cement ratio from 0.33 to 0.50, the compressive strength improved by 34.4 and 35.2 %, respectively. The results for abrasion experiments showed that due to reduction of water-cement ratio from 0.50 to 0.33, the abrasion strength improved by 36.13%
  5. Keywords:
  6. Abrasion strength ; Compressive strength ; Hydraulic structure ; Nano silica concrete ; Water-cement ratio
  7. Source: World Applied Sciences Journal ; Volume 17, Issue 4 , 2012 , Pages 540-545 ; 18184952 (ISSN)
  8. URL: http://www.idosi.org/wasj/wasj17%284%2912/20.pdf