Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Unfired and pressing-free sludge brick and preparation method thereof
The invention discloses an unfired and pressing-free sludge brick and a preparation method thereof. The unfired and pressing-free sludge brick is mainly prepared from following components in percentage by mass: 70%-85% of dredged sludge, 5%-20% of cement, 2%-7% of gypsum, 0-20% of slag, 0-20% of coal ash, 0-10% of lime and 0-1% of an early strength agent. The unfired and pressing-free sludge brick has the following advantages that (1) a non-sintering technology is adopted so that energy sources can be saved, and a condition that air pollution and solid waste pollution are caused by sintering is avoided; (2) a pressing-free technology is adopted and pressure molding is not needed, and excessive power investment is not needed in a production process; (3) the used dredged sludge does not need to be subjected to dehydration treatment and the procedure is simple and feasible; (4) the production process is simple, steam curing is not needed, few machines are used, the investment is less and the energy consumption is less; and (5) a brick building block material is produced by using the dredged sludge, so that river ways can be dredged, water regions can be beautified and wastes can be changed into valuable things, and the cyclic utilization of resources is realized.
Unfired and pressing-free sludge brick and preparation method thereof
The invention discloses an unfired and pressing-free sludge brick and a preparation method thereof. The unfired and pressing-free sludge brick is mainly prepared from following components in percentage by mass: 70%-85% of dredged sludge, 5%-20% of cement, 2%-7% of gypsum, 0-20% of slag, 0-20% of coal ash, 0-10% of lime and 0-1% of an early strength agent. The unfired and pressing-free sludge brick has the following advantages that (1) a non-sintering technology is adopted so that energy sources can be saved, and a condition that air pollution and solid waste pollution are caused by sintering is avoided; (2) a pressing-free technology is adopted and pressure molding is not needed, and excessive power investment is not needed in a production process; (3) the used dredged sludge does not need to be subjected to dehydration treatment and the procedure is simple and feasible; (4) the production process is simple, steam curing is not needed, few machines are used, the investment is less and the energy consumption is less; and (5) a brick building block material is produced by using the dredged sludge, so that river ways can be dredged, water regions can be beautified and wastes can be changed into valuable things, and the cyclic utilization of resources is realized.
Unfired and pressing-free sludge brick and preparation method thereof
GAO YUFENG (Autor:in) / WANG LIYA (Autor:in) / WAN YUKUAI (Autor:in) / ZHANG JIAN (Autor:in)
22.07.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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