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Investigations on the development of the permeability properties of binary blended concrete with nano-SiO2 particles.


Citation

Abdul Rashid, Suraya and Mohd Salleh, Mohamad Amran and Abd. Aziz, Farah Nora Aznieta and Naji Givi, Alireza (2010) Investigations on the development of the permeability properties of binary blended concrete with nano-SiO2 particles. Journal of Composite Materials, 45 (19). pp. 1931-1938. ISSN 0021-9983

Abstract

Water permeability of cement-based concrete has been recognized as a critical intrinsic property highly affecting the durability of reinforced concrete. An experimental study was done, designed to examine the water permeability and setting time of Portland cement mortar with nano-SiO2 admixed at 0.5, 1, 1.5, and 2 wt% of cement. The percentage, velocity, and coefficient of water absorption tests results showed that the incorporation of nano-SiO2 particles improved the water penetration resistance of the binary-blended concrete. Such improvements were especially significant when using 2 wt% of nano-SiO2. The experimental results revealed that the admixing of nano-SiO2 particles not only led to denser cement mortar but also changed the morphology of cement hydration products. Mechanisms were proposed to explain the physicochemical changes induced by the nano-SiO2 particles and the specific surface area of them is demonstrated as one of the key factors. Considering the higher strength and durability is promising their use in binary-blended concrete.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1177/0021998310389091
Keywords: Nano-SiO2 particles; Binary-blended concrete; Permeability; Setting time
Depositing User: Muizzudin Kaspol
Date Deposited: 10 Sep 2014 00:38
Last Modified: 02 Nov 2015 04:22
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1177/0021998310389091
URI: http://psasir.upm.edu.my/id/eprint/23377
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