Nanosilica modifiers for cement mortars

被引：7
|
作者：
Khomich, V. A. [1 ]
Emralieva, S. A. [1 ]
Tsyguleva, M., V [1 ]
机构：
[1] Siberian State Automobile & Highway Acad, 5 Mira Pr, Omsk 644080, Russia
来源：
OIL AND GAS ENGINEERING (OGE-2016) | 2016年 / 152卷
关键词：
modifiers for cement mortars; ultradispersed silica; nanostructured silica; cement mortars; paste matrix;
D O I：
10.1016/j.proeng.2016.07.662
中图分类号：
TE [石油、天然气工业];
学科分类号：
0820 ;
摘要：
Man-made products containing 95 ... 96% of amorphous nanostructured silica were studied for the purpose of their usage as modifiers for cement mortars. These products are "belaya sazha (carbon white)" BS120 (BS) obtained by means of hydrochemical synthesis and amorphous silicon dioxide (ADK) produced from rice husk being thermally treated at 800 degrees C. Morphological properties and pozzolanic activity of the modifiers were analyzed. Nanostructured material BS is formed from corpuscular nanoscaled particles that are merged into aggregates. Lamellar and flaky ADK particles consist of coalesced nanoscaled granules. The authors explain improving the performance properties of nanomodified cement mortars: increase of durability, water resistance and adhesion indices, reduction of water adsorption and decrease of shrinkage deformation while hardening. Development of mortar formula for waterproofing work is the practical application of the research findings. (C) 2016 Published by Elsevier Ltd.
引用
收藏
页码：601 / 607
页数：7
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