MANUFACTURE OF ARTIFICIAL ROCKS

摘要

PURPOSE: Provided is a manufacturing method of artificial rocks with nonflammability, strength and water proofness by using GRC mortar as main material and cement paste. The resultant rocks are used as interior and exterior materials and reconstruct damaged nature. CONSTITUTION: The artificial rocks are manufactured by the following steps of: preparing glass reinforced cement(GRC) mortar and cement paste; reproducing rocks from natural rocks with a silicon rubber(3); covering fiber reinforced polymer(FRP, 4) over the silicon rubber; plastering a cement paste(5) on the surface of a silicon rubber mold; filling a GRC mortar(6) on the cement paste with removal of bubbles; curing and de-molding; reforming holes caused by bubbles on the demolded GRC mortar with the cement paste; spreading water and curing again to increase strength of the GRC mortar; coating water proof agent over the GRC mortar. The GRC mortar contains 80kg of cement, 56kg of sand, 8kg of silica hume, 24-30kg of water, 2.4kg of glass fiber, 0.8kg of water reducing agent, 2.4kg of polymer, 0.8kg of efflorescence controller and 2.4kg of pigment. The cement paste contains 15kg of cement, 3kg of fine sand, 1.5kg of silica hume, 4.5-5.5kg of water and 0.45kg of pigment, wherein the pigment comprises Fe2O3, H2SiO4, Al2O3, CaCO3 and C for coloring dark brown, and Fe2O3, H2SiO4, Al2O3 and CaCO3 for coloring pale red.