首页>
外国专利>
The mineral Characteristic aggregate and the base aggregate reaction suppression manner null which prevent the base reaction
The mineral Characteristic aggregate and the base aggregate reaction suppression manner null which prevent the base reaction
展开▼
机译:阻止碱反应的矿物特征团聚体和碱骨料反应抑制方式无效
展开▼
页面导航
摘要
著录项
相似文献
摘要
PURPOSE:To improve the durability of cured cement and to prevent the contamination of concrete by contacting the surface of an alkali-reactive mineral aggregate with ozone in the presence of water, thereby modifying and stabilizing the surface structure of the aggregate. CONSTITUTION:A silicate aggregate reactive with alkali component (e.g. pyroxene andesite) is immersed in ozonized water (having a concentration of usually 0.05-2%) or sprayed with ozonized water to modify the reactive site of the aggregate and prevent the alkali-aggrefate reaction. The cracking, breakage, contamination, etc., of concrete caused by the formation of silica gel can be prevented by the use of the aggregate.
展开▼