| abstract |
PROBLEM TO BE SOLVED: To provide sufficient water absorption performance and water retention performance, light weight and easy to cut, as well as greening a building roof, cultivating / greening / planting a dry zone, purifying drainage, heat insulating wall / soundproof wall Providing versatile concrete materials that can be used for building interior materials. SOLUTION A flexible aggregate 3 such as a sponge or sponge-like cushion material cut and crushed and an inorganic admixture 4 are used for cement 2. Furthermore, charcoal, bamboo charcoal, fine ore powder, or plant nutrient is added to these. [Selection] Figure 1 |