2010 Volume 21 Issue 2 Pages 2_1-2_11
This research developed the new concrete manufacturing method “surface wetting method” for the purpose of utilization of waste SANSYU roof tiles (porous material) as concrete aggregate. In this method, use the air-dry aggregate and sprinkle water on it using spray just before mixing. On the basis of experiments, confirmed that it is possible to make good concrete in terms of workability, strength and durability (frost damage and drying shrinkage) by using the surface wetting method. In addition, we considered about influence of inner liquid (amount and distribution) on frost damage and drying shrinkage of concrete using porous material. And we suggested the model paying attention to inner liquid.
