一成分形潜在硬化性エポキシ樹脂混入ポリマーセメントモルタルの性質

概要

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Conventional epoxy-modified mortar and concrete pose certain problems of cost-performance balance due to the necessity of mixing two components (epoxy resin and hardener) and high polymer-cement ratios of 50% or higher. In addition, the working life of the mixture is limited. This paper experimentally investigates the fundamental properties of a new epoxy-modified mortar which uses a working-life-free, one-component epoxy resin. This one-component epoxy resin contains a microcapsuled curing agent which does not react with the resin at normal temperature and starts a chain reaction at 80℃ or more. The flexural strength and ductility of the epoxy-modified mortars with this system are superior to those of the unmodified mortars mixed in the same proportions. Furthermore, water absorption and drying shrinkage are markedly decreased with this system.
2002-03-30