| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a road pavement slab using mill slag as a part of raw material, solving the problems such as insufficient strength, occurrence of cracks, expansion due to free MgO, pH rising of contact water. SOLUTION: This road pavement is formed by mixing with water a mixture containing granular hot metal preliminary treated slag as mill slag and blast furnace slag fine powder as SiO2-containing material, whose percentage of a content of hot metal preliminary treated slag having a particle diameter of 1.18 mm or less is 15 to 55 mass %, and whose percentage of a content of blast furnace slag fine powder is 5 to 40 mass %. The pH of the contact water is 10 or less after contact.</p> |
