| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a compounding ratio determining method by which a water-powder ratio and a cement adding ratio to maximize the compressive strength of a hardened body to be manufactured by using a large amount of a fine powder such as coal ash, can be easily obtained. SOLUTION: This is a method for obtaining a compounding ratio of respective materials in order to manufacture a hardened body comprising a material including cement, a large amount of a fine powder such as coal ash, and water of a water-powder ratio at a degree of an optimum moisture content, and a kneaded article is formed by kneading cement, the fine powder and water, and a water-powder ratio to show a specified flow value is obtained by performing a flow test regarding this kneaded article, and an estimate for the water-powder ratio to maximize the compressive strength of the hardened body is obtained by an operation from the water-powder ratio, and from this estimate for the water-powder ratio, an estimate for the compressive strength of the hardened body is obtained by an operation, and from the estimate for the compressive strength and a required compressive strength for the hardened body, a cement adding ratio is obtained by an operation.</p> |
