Utilization on Waste SANSYU Roof Tiles for Concrete
By Yuki Amano, Takumi Uehara, Hidetaka Umehara and Yuki Takenaga
Concrete Research and Technology
Vol.21, No.2, May 2010 (Issue 53)
- Synopsis:
- This research developed the new concrete manufacturing method "surface wetting method" for the purpose of utilization of waste SANSYU roof tiles (porous materials) 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 infuluence 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.
- Keywords:
- waste roof tiles, industrial by-product, porous material, displacement of aggregate, frost damage, drying shrinkage, surface wetting method
