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- Title
Use of normal-density high-absorption limestone aggregate as internal curing agent in concrete.
- Authors
Solís-Carcaño, Rómel; Terán-Marín, Laura V.; Moreno, Eric I.
- Abstract
A common practice to provide additional water for the hydration process of cement is to use special aggregates that act as agents incorporating water to the concrete (lightweight natural aggregates or polymers). Previous studies have suggested that normal-density high-absorption limestone aggregates may produce a similar effect. The aim was to determine if they can function as an internal curing agent. The methodology consisted of concrete specimens employing two types of aggregates and subjected to three different curing treatments. Results showed similar values of compressive strength and porosity among the concrete cured under wet and dry treatments for the high-absorption limestone aggregate but not for the river rock aggregate. Thus, this effect was attributed to the internal curing properties of the high-absorption limestone aggregate.
- Subjects
LIMESTONE; MINERAL aggregates; CONCRETE curing; HYDRATION; CEMENT; POLYMERS; POROSITY; COMPRESSIVE strength
- Publication
Canadian Journal of Civil Engineering, 2015, Vol 42, Issue 11, p827
- ISSN
0315-1468
- Publication type
Article
- DOI
10.1139/cjce-2014-0109