| 摘要 |
The present invention relates to a plastering composition for architecture in which oyster shell powder is mixed with cement instead of sand. Provided is a plastering composition for architecture, which comprises cement in which Portland cement and slug cement are mixed at a weight ratio of 1.1 to 1.2, and oyster shell powder obtained by removing impurities from collected oyster shells, and washing, dehydrating and drying the collected oyster shells, and pulverizing the same to pass through a net of 0.5-1.5 mm, at a weight ratio of 1:1.5-1:3. The plastering composition of the present invention contains a large amount of oyster shell powder, and thus has excellent thermal insulation, and superior thermal and cold protection effects, has high bond strength, has less crack generation due to excellent fine crack resistance and impact resistance, maintains the plastering state for a long period of time due to superior wear resistance, and has less condensation due to excellent resistance to hot and cold repeated actions, thereby preventing the generation of molds. Moreover, the plastering composition of the present invention provides economic efficiency at low production cost, has consumption compared to the weight ratio, i.e. construction area, greatly increased to 1.3-1.5 times as the weight thereof becomes lighter, and can be easily carried. |
