コンクリート用無機質系弾性補修材のアルカリ・シリカ反応抑制効果に関する研究

抄録

Sufficiently high waterproof, moderate moisture permeability and extensibility are the necessary properties for a coating material to have in order to prevent the damage of concrete due to the alkali-silica reaction (ASR). A new inorganic coating material having all of these properties has been developed. In the present study, its physical properties were measured, first and then the durability under accelerated ultraviolet light exposure was examined. Lastly, practical performance tests were carried out by using the specimens made of concrete with alkali reactive aggregate and the actually damaged concrete structure due to ASR. As the result, it was confirmed that ASR was prevented for 2-years by coating the new material.