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A platform for research: civil engineering, architecture and urbanism
Crop residue sintered heat insulation hollow block and preparation method thereof
The invention relates to the field of construction materials, and especially relates to a crop residue sintered heat insulation hollow block and a preparation method thereof. Through the appropriate treatment and reasonable ratio of crop residues, a plastic raw material and a water raw material, and the combination of initial blank production, drying and firing steps in the manufacturing process, the plasticity index of 5 to 13 and the drying sensitivity coefficient of less than 1 of mud can be ensured in the preparation process; after extrusion-molded mud strips are cut and then are placed in a drying chamber to be dried, the drying shrinkage rate of the mud strips is less than 8%; and then the mud strips are placed in a firing furnace to be fired, and the temperature rise speed can be controlled by a blower, an air brake, thermocouple temperature measurement and other means in a low-temperature zone, so that the situation that the temperature is out of control due to the rapid combustion of crop residues in the firing process is avoided; and finally, the finished product with mechanical strength of more than 3.5MPa and the density of less than 900kg/m<3> is obtained.
Crop residue sintered heat insulation hollow block and preparation method thereof
The invention relates to the field of construction materials, and especially relates to a crop residue sintered heat insulation hollow block and a preparation method thereof. Through the appropriate treatment and reasonable ratio of crop residues, a plastic raw material and a water raw material, and the combination of initial blank production, drying and firing steps in the manufacturing process, the plasticity index of 5 to 13 and the drying sensitivity coefficient of less than 1 of mud can be ensured in the preparation process; after extrusion-molded mud strips are cut and then are placed in a drying chamber to be dried, the drying shrinkage rate of the mud strips is less than 8%; and then the mud strips are placed in a firing furnace to be fired, and the temperature rise speed can be controlled by a blower, an air brake, thermocouple temperature measurement and other means in a low-temperature zone, so that the situation that the temperature is out of control due to the rapid combustion of crop residues in the firing process is avoided; and finally, the finished product with mechanical strength of more than 3.5MPa and the density of less than 900kg/m<3> is obtained.
Crop residue sintered heat insulation hollow block and preparation method thereof
GAO YUSHI (author) / LIU LIZHU (author) / TANG CHAOJUN (author) / GAN SIYANG (author) / SONG MEI (author) / ZHANG QIFAN (author)
2015-04-22
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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