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A platform for research: civil engineering, architecture and urbanism
Impervious municipal sludge-sintered shale brick and production method thereof
The invention provides an impervious municipal sludge-sintered shale brick and a production method thereof. The impervious municipal sludge-sintered shale brick is mainly prepared from the following raw materials by mass: 60 to 70% of shale, 20 to 30% of dried municipal sludge and 10 to 20% of an accessory material. The accessory material is mainly prepared from the following raw materials by mass: 75 to 80% of quicklime, 9 to 14% of aluminum powder and 6 to 16% of sulfuric acid residue. The production method comprises the following steps: adding water into the raw materials and carrying out stirring to prepare a wet material with water content of 12 to 17%; subjecting the wet material to extrusion molding so as to prepare a green brick; soaking the green brick in shale slurry with water content of 29 to 30%; and then carrying out drying, roasting, heat-preserving and cooling. The prepared shale brick has good performances like lightweight, heat preservation, thermal insulation, fire resistance, cracking resistance and sound insulation and realizes recycling of waste materials; and a shale protective layer on the surface of the brick isolates communication between internal micropores and the outside, thereby achieving the impervious purpose.
Impervious municipal sludge-sintered shale brick and production method thereof
The invention provides an impervious municipal sludge-sintered shale brick and a production method thereof. The impervious municipal sludge-sintered shale brick is mainly prepared from the following raw materials by mass: 60 to 70% of shale, 20 to 30% of dried municipal sludge and 10 to 20% of an accessory material. The accessory material is mainly prepared from the following raw materials by mass: 75 to 80% of quicklime, 9 to 14% of aluminum powder and 6 to 16% of sulfuric acid residue. The production method comprises the following steps: adding water into the raw materials and carrying out stirring to prepare a wet material with water content of 12 to 17%; subjecting the wet material to extrusion molding so as to prepare a green brick; soaking the green brick in shale slurry with water content of 29 to 30%; and then carrying out drying, roasting, heat-preserving and cooling. The prepared shale brick has good performances like lightweight, heat preservation, thermal insulation, fire resistance, cracking resistance and sound insulation and realizes recycling of waste materials; and a shale protective layer on the surface of the brick isolates communication between internal micropores and the outside, thereby achieving the impervious purpose.
Impervious municipal sludge-sintered shale brick and production method thereof
HUANG BANGBIAO (author) / LI ZHI (author) / HUANG BINGZHANG (author) / LIAO TIANQUAN (author) / ZHANG BEI (author) / SHENG QI (author) / LU QIANG (author) / LIU YANG (author)
2015-10-14
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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