| 摘要 |
PURPOSE: A concrete brick is provided to remarkably decrease the weight of a brick by manufacturing a brick using ingot which is made by melting the waste styrofoam, and to promote the thermal insulating effectiveness. CONSTITUTION: The concrete brick is manufactured by: mixing usual aggregate with the waste styrofoam reproduced aggregate which having its particle sized to be modulated according to the standard of aggregate about concrete bricks by pulverizing and processing the waster styrofoam ingot using a crusher; mixing cement to have 1:7 of ratio of the waste styrofoam to the reproduced aggregate; pressurizing using a vibrating press. Therefore, the concrete brick using the waste styrofoam reproduced aggregate meets the standard of KS F 4004, and particularly having 1120-2100 kg/m¬3 of unit volume weight, 93-320 kg/cm¬2 of compressing strength; 6.2-11.7 % of absorption rate, and 0.28-1.35 kcal/mh°C of heat conduction rate.
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