解体木材を用いた木片コンクリートの製造及び曲げ・圧縮強度

概要

論文の詳細を見る
Used-timber are discharged about 15 millions cubic meter every year from demolished buildings mainly from wooden houses in Japan. The authors have carried out a study on recycling used timber as wood-chip concrete. This Special concrete was made under following conditions, these were water-cement ratios: 35, 40, 50 and 60%, wood-chip packing ratios: 30, 40, 50 and 60%. The properties of the wood-chip of used timber crushed by hammer crusher were investigated. The injecting cement paste was made by the method called double mixing, and it was found that when the primary water cement ratio (W1/C) was chosen 23%, the bleeding and flowing speed of the cement paste could be minimized. Density of the wood-chip concrete can be controlled by the wood-chip packing ratio. These densities generally fall into the range of 920 kg/m^3 to 1250 kg/m^3. Bending strength test, compressive strength test were made to evaluate the properties of the wood-chip concrete. After these tests, the wood-chip concrete is suitable to use as building materials, for example, partition walls, floor joists, floor boards, etc.
社団法人日本建築学会の論文
1995-07-30