抄録
When designing explosive-resistant concrete structures, reducing brittle spall due to reflected tensile stress wave is the most important problem. In order to apply high-toughness fiber-reinforced concrete to explosive-resistant structures, experimental investigations were conducted regarding evaluation of the damages in polyethylene fiber-reinforced concrete (PEFRC) slabs subjected to contact detonation. As a result, it was shown that the PEFRC was very effective in reducing spall due to detonation as compared with normal concrete. Moreover, the formulation estimating the damage depth in the PEFRC slab subjected to contact detonation was derived based on the test results.
