SOLIDIFICATION AND FORMATION OF ASH

PROBLEM TO BE SOLVED: To produce a paving material which has strength to sufficiently satisfy the required strength as the paving materials by using, as a solidifying agent, inexpensive regular Portland cement and a larger quantity of ashes to increase the recycling ratio. SOLUTION: When the paving material is formed by adding regular Portland cement and water to ashes, then kneading and solidifying the mixture, clay or inorganic powders having a particle size corresponding to that of silt and a fine aggregate are added to the mixture mentioned above and mixed, and the resulting kneaded material is press-formed under a pressure of 100-3,000 kgf/cm . The ashes, the inorganic powders and the fine aggregate are mixed in a relative weight ratio of 10-80:10-80:10-80. The regular Portland cement is mixed in an amount of 20-80 pts.wt., based on 100 pts.wt. of the total weight of the ashes, the inorganic powders and the fine aggregate. Water is added in such an amount that the kneaded material has a water content of 5-30%.