CRACK ERASER FOR CRACK MENDING OF CONCRETE, MANUFACTURING METHOD THEREOF AND CRACK MENDING METHOD USING THE SAME

摘要

A crack eraser for repairing crack of concrete, a manufacturing method thereof, and a crack repairing method using the same are provided to improve the repairing efficiency of the crack area by inserting the crack eraser in the holder and simply rubbing the crack area and to prevent the discharge outlet from being stuck by hardening the composite during the repair work. A crack eraser(210) for repairing crack of concrete mixes the composite containing a cement, a furnace slag powder, a silica fume, and a blowing agent with water and pressure-molds the composite. The cement is a portland cement or a micro cement, or is mixed with two cements. The composite contains pigments. The crack eraser contains the furnace slag powder 5~60 parts by weight, the silica fume 1~20 parts by weight, the blowing agent 1~15 parts by weight, and the water 40~200 parts by weight for the cement 100 parts by weight.