塗膜防水層下のコンクリートひび割れ部分の炭酸化

概要

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The purpose of this elaboration is to investigate the carbonation resistance of waterproofing membranes applied to the concrete surface, particularly the cracked zone of the underlying concrete. The considered parameters were, the width of the crack in the concrete, the presence or absence of the waterproofing membrane, and the membrane thickness. Mortar prisms shaped specimens were coated by two types of the fluid waterproofing membrane. The prisms were cracked by bending and then exposed to an accelerated carbonation environment with an atmosphere of 10% carbon dioxide. After 1 year of exposure in this environment, the depth of carbonation was measured. Carbonation areas were observed along the cracks of the specimens with thin coatings along the wide cracks. Furthermore, a numerical simulation method was developed on the basis of diffusion theory and the carbonation at the cracked area of the concrete was simulated.
社団法人日本建築学会の論文
2006-08-30