Production of pavior brick by solid waste material and preparation method thereof


Application Number  00129505 Application Date  2000.09.29
Publication Number  1345702 Publication Date  2002.04.24
Priority Information    
International
Classification
 C04B18/30;C04B28/32;E04C1/00  
Applicant(s) Name  Ruixiang Science and Technology Development Co., Ltd., Tianjin New Technology In  
Address    
Inventor(s) Name  Ma Aili  
Patent Agency Code  12100 Patent Agent  dong yining
AbstractThe preparation method for producing pavior brick by utilizing solid wastes includes the following steps: 1. selecting waste with large grain size, breaking them, using 1 portion of MagCl2 and 1.8 portions of water to make them into bittern, and using 0.5 portion of MgSO4 and 1.2 portions of water to make dilution; 2. stirring the above-mentioned wastes and MgO, bittern and sand necessary for preparing surface layer according to the above-mentioned mixing ratio and solidifying for 20-30 min; 2. adding MgO necessary for preparing base layer and stirring, adding water, MgSO4 and MgCl2 in turn according to the above-mentioned mixing ratio, constinuously stiring for 20 min.; 4. feeding the above-mentioned mixed material into two-stage vacuum extruder by rubber belt conveyer, injection moulding for 3-5 hr., demoulding, natural curing and putting in storage. Said invention has no pollution, its product is high in strength.