| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a concrete product having an effect to improve an ecosystem by utilizing a biodegradable plastics alone, or ion exchange substance, water holding substance, or characteristics of the water holding substance. SOLUTION: Pores are formed from the surface to the inside of concrete by utilizing that the biodegradable plastics mixable with cement can be degraded by bacteria, fungus, and alkali components. The biodegradable plastics alone, or ion exchange substance, water holding substance, or solid matter formed by mixing the water holding substance is mixed at the time of forming concrete beforehand, and the mixed substance is disposed in the concrete.</p> |
