シラン系含浸材とシラン・シロキサン系表面塗布材の併用によるコンクリートの表面保護効果に関する研究

概要

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In order to improve in concrete surface protection ability with retaining its low gloss, two types of silane penetrant (silane-1 and silane-2), one type of silane-siloxane surface coating material and the standard commercial penetrant were examined. The silane penetrants having different reaction speeds were individually coated on the concrete surface. The silane-1 deeply penetrated than the silane-2. However, the silane-2 which reacts faster than the silane-1 showed the excellent properties of preventing water permeability, carbonation and chloride-ion penetration. This is supposed that it generated steadier and thicker siloxane-bond network in the inner side of the pores of the treated concrete than the other. Treatment with both silane and silane-siloxane layers showed much better properties than a single treatment of them. The combination of the silane-2 and silane-siloxane layers gave the best durability to the concrete surface among the surface treatment materials. The gloss measurement showed that the specimens coated with the silanes had low glosses as same as the untreated one. On the other hand, the specimens with the silane-siloxane resulted having high glosses because of its own high gloss.
日本建築学会の論文