Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6723841 | Construction and Building Materials | 2014 | 9 Pages |
Abstract
This study investigated total shrinkage, which is a rarely examined property, as well as the penetration of chlorides before and after shrinkage and the compressive strength of concretes containing clear-colored rice husk ash substituted for 5%, 10%, 20%, and 30% of their Portland cement and subjected to wet curing periods of 3 and 7Â days. The results showed that increasing the RHA content increased the concrete's total shrinkage and compressive strength, as well as the penetration of chlorides after shrinkage. A cost analysis of the concrete used at ready-mix concrete companies was performed. The study concluded that concretes containing 5% RHA replacement and compressive strength levels between 35 and 55Â MPa had a lower cost/m3 than that of the reference concrete containing 100% Portland cement.
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Authors
A.L.G. Gastaldini, M.P. da Silva, F.B. Zamberlan, C.Z. Mostardeiro Neto,