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http://dx.doi.org/10.1007/s40069-014-0086-z

Hydration Behaviors of Portland Cement with Different Lithologic Stone Powders  

Xiong, Zuqiang (School of Energy Science and Engineering, Henan Polytechnic University)
Wang, Peng (School of Energy Science and Engineering, Henan Polytechnic University)
Wang, Yuli (School of Materials Science and Engineering, Henan Polytechnic University)
Publication Information
International Journal of Concrete Structures and Materials / v.9, no.1, 2015 , pp. 55-60 More about this Journal
Abstract
In this study, influence of different stone powders (SP), including limestone powders (LP), quartzite powders (QP), and granitic powders (GP), on the hydration behaviors of portland cement, for example, setting time, hydration heat, and hydration products, were discussed. The initial and the final setting time both shorten when the content of LP is 5 %, however, they are slightly delayed by the other two SPs. The LP has no obvious influence on the arrival time of the first peak in the exothermal curves, and it makes the peak value decrease; the other two SPs postpone the appearance of the first peak, and they also make the peak value decrease. For the second peak, LP shifts the peak position to the left, QP has no effect on this peak position, and GP makes the appearance of this peak delayed by 143 min. Similarly, three kinds of SPs have different influence on the hydration products of portland cement. The LP precipitates the formation of hydrated calcium carbo aluminate, the QP the formation of hydrated garnet, and the GP makes the amount of Tobermorite increase.
Keywords
lithology; stone powders (SP); portland cement; hydration product;
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