| 摘要 |
The present invention relates to an environmentally friendly soil pavement composition and to a soil pavement construction method using the same. The soil pavement composition comprises soil 50 to 90 weight% such as sandy loam, red clay, clay, surface soil of a mine, or the like, mineral powder 10 to 90 weight% having an element composition of C 5 to 81.7%, O 20 to 86.7%, Mg 1 to 67.7%, Al 1 to 67.7%, Si 3 to 69.7%, S 0.5 to 67.2%, Cl 0.5 to 67.2%, Ca 2 to 68.7%, Ti 0.1 to 66.8%, Mn 0.05 to 66.75%, Fe 0.05 to 66.75% and In 0.1 to 66.8%, and a binder 10 to 40 weight% consisting of a liquid binder 10 to 90 weight% obtained by mixing one or more compounds selected from a group consisting of alkali metal chloride and alkali earth metal chloride, to clustered water to obtain a solution in which alkali metal and/or alkali earth metal is eluted, and mixing water containing small amount of rare earth elements and pH adjuster to the solution. The soil pavement construction method comprises the steps of: providing the soil pavement composition; applying the soil pavement composition onto a base layer; compacting the composition by using a vibration roller or a compactor; and curing the compacted surface of pavement by spreading a curing device on which a heater such as an electrical pad or the like is attached, onto the compacted surface of pavement, or naturally curing the compacted surface of pavement to solidify the pavement. The present invention strongly binds inorganic substances of soil and inorganic substances of the binder through inorganic substance dissolution) ? formation of aquasols ? condensation ? gel formation ? crystallization, which eliminates the necessity of using cement and suppresses emission of CO2 gas generated during production of cement, thus reducing costs for emission of CO2 set in Kyoto protocol and reducing atmospheric contamination. Further, as the present invention eliminates the source of generation of Cr6+ or the like, which is the toxicity of cement, environmental contamination is prevented, and a comfortable environment can be provided for people walking on the paved road, construction workers, and residents who live near the field of construction. The present invention performs construction of soil pavement having superior durability in an easy manner. |
