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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Effective Use of Cement for Modification of Base Course Material
Author(s)
Alireza Rezagholilou and Hamid Nikraz
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DOI:10.17265/1934-7359/2016.04.006
Affiliation(s)
Civil Engineering Department, Curtin University, Perth 6100, Australia
ABSTRACT
Cement improves properties
of soil materials,
such as durability, stiffness, strength and moisture susceptibility. Each of
them needs different cement contents that might not be suitable for other
properties. Typically, high cement content is desirable for durability, but not
for shrinkage and cracking issues on the surface. Thus, improving durability with low
cement content while complying with other requirements is an ideal aim, which
may be achieved by pozzolanic supplementary products. Pozzolans contribute in
hydration reactions and optimise cement consumptions in favour of durable and low shrinkage products. In this paper, the
mixes of nano-silica and fly ash are considered to investigate their effect
on strength, durability and shrinkage of modified CRB (crushed rock base) material. In the end, the benefits and features of nano-silica as a
pozzolanic material will be focused and discussed more for effective cement
consumption in soils.
KEYWORDS
Nano-silica, cement modification, durability, shrinkage.
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