Journal
CONSTRUCTION AND BUILDING MATERIALS
Volume 126, Issue -, Pages 119-129Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.09.022
Keywords
Concrete; Coarse aggregate; Igneous rock; Alkali-silica reaction; Freeze-thaw resistance; Aggregate crushing value
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Funding
- Kielce University of Technology
- Lublin University of Technology
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Direct tests allowed determining properties of coarse igneous rock aggregates in comparison with gravel along with freeze-thaw resistance and susceptibility to alkali-aggregate reaction. The relationship between the properties and durability of the aggregates and concretes was evaluated taking into account the results from microstructural analyses. Granodiorite, basalt and gravel were sensitive to alkali-silica reaction due to the presence of strained quartz, chalcedony and opal, respectively. The resistance of the aggregate to freezing and thawing was demonstrated to agree with the values of crushing resistance and the lowest contents of pores with diameters unsafe in terms of the freeze-thaw resistance. (C) 2016 Elsevier Ltd. All rights reserved.
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