MATEC Web Conf.
Volume 251, 2018VI International Scientific Conference “Integration, Partnership and Innovation in Construction Science and Education” (IPICSE-2018)
|Number of page(s)||7|
|Published online||14 December 2018|
Physicochemical properties of silicate-calcium micro-filler obtained by thermolysis of calcium hydrosilicates stabilized with sucrose
Yuri Gagarin State Technical University of Saratov 77 Politechnicheskaya street, Saratov, Russia, 410054
* Corresponding author: email@example.com
Calcium hydrosilicates obtained by grinding a mixture of natural pozzolana (flask), CaO and a sucrose solution are characterized by the ability to self-disperse during heat treatment to form a highly dispersed silicate-calcium dispersion (SCD). The dependence of some physicochemical properties of the SCD (granulometric composition, occlusive capacity for sucrose) on the amount of sucrose used in the grinding of the mineral mixture is considered in the article. It was found that with an increase in the amount of sucrose used, the proportion of particles of submicron (0.1-1 mkm) size range and the content of the residual free sucrose in the composition of the SCD increased. By varying the amount of sucrose used in the grinding of the mineral mixture, it is possible to obtain silicate-calcium mineral additives, the introduction of which into the cement paste is accompanied by the effects of accelerating or retarding the setting of the cement binder.
© The Authors, published by EDP Sciences, 2018
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