Dinesh

Dinesh club

Posted: 19 Dec 2018


Taken: 19 Dec 2018

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Hilo


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Volcanic rock

Volcanic rock
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 Dinesh
Dinesh club
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.

www.sciencedirect.com/science/article/abs/pii/S0950061816314519
6 years ago.

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