Soil concrete by using soluble silicate and soil pavement method using the same

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PURPOSE : A soil concrete composition is provided to equip an excellent durability by using a hardener including a soluble special silicate and to prevent a heavy metal contamination by excluding a use of cement. CONSTITUTION : A soil concrete composition including a soluble special silicate comprises 4-10 parts by weight of hardening according to 100 soil mixture. The soil mixture comprises 5-20 weight% of water-cooled blast furnace slag, 5-15 weigh% of fly ash, 10-30 weight% of granite soil, 0.1-0.5 weight% of aluminum sulfate, and 35-60 weight% of concrete aggregate. The hardening agent includes the soluble special silicate and water in 1 : 1 weight ratio. A surface strengthening soil paving method comprises the following steps : (a) the base of a construction site is cleared and the subbase is flattened; (b) the soil concrete composition including the soluble special silicate is formed; (c) the first construction is performed using the soil concrete composition; and (d) after the first construction, the second construction is performed after 30-60 minutes with powdered surface finish material. [Reference numerals] (AA) Base of a construction site is cleared; (BB) Subbase is flattened; (CC) Mixing pump is installed at a construction site; (DD) Eco-friendly soil concrete is deposited; (EE) Soil mixture is transported; (FF) Whether a bleeding occurs or not is checked; (GG) Eco-friendly soil concrete(mixing the soil mixture and a curing agent); (HH) Finishing material is sprayed on the surface; (II) Finishing material is plastered; (JJ) Protection and curing process is carried out; (KK) Construction completes