Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Modified building residue baking-free brick
The invention discloses a modified building residue baking-free brick. The modified building residue baking-free brick is prepared from, by mass, 65 to 75% of building residue, 10 to 15% of sand, 5 to 15% of cement, and 2 to 5% of industrial lime. The modified building residue baking-free brick is prepared via following steps: 1) building residue generated in subway construction processes is subjected to simple ball milling so as to obtain building residue powder; 2) the ingredients above are weighed according to the ratio above, and water-solid ratio is controlled to be 0.20 to 0.24; 3) cement, lime, gypsum, and sand are uniformly mixed with the building residue powder, water is added for uniform mixing, an obtained mixed material is subjected to extrusion forming, and curing under natural conditions for 3 to 7 days, is delivered into a drying oven, and is dried to be constant in weight at 40 to 60 DEG C so as to obtain the modified building residue baking-free brick. The modified building residue baking-free brick is cheap; a large amount of building residue can be recycled; environmental pollution and soil waste are reduced; compressive strength is high; water resistance is excellent; the modified building residue baking-free brick is capable of satisfying performance requirements of building bricks, and can be used for replacing sintering clay bricks.
Modified building residue baking-free brick
The invention discloses a modified building residue baking-free brick. The modified building residue baking-free brick is prepared from, by mass, 65 to 75% of building residue, 10 to 15% of sand, 5 to 15% of cement, and 2 to 5% of industrial lime. The modified building residue baking-free brick is prepared via following steps: 1) building residue generated in subway construction processes is subjected to simple ball milling so as to obtain building residue powder; 2) the ingredients above are weighed according to the ratio above, and water-solid ratio is controlled to be 0.20 to 0.24; 3) cement, lime, gypsum, and sand are uniformly mixed with the building residue powder, water is added for uniform mixing, an obtained mixed material is subjected to extrusion forming, and curing under natural conditions for 3 to 7 days, is delivered into a drying oven, and is dried to be constant in weight at 40 to 60 DEG C so as to obtain the modified building residue baking-free brick. The modified building residue baking-free brick is cheap; a large amount of building residue can be recycled; environmental pollution and soil waste are reduced; compressive strength is high; water resistance is excellent; the modified building residue baking-free brick is capable of satisfying performance requirements of building bricks, and can be used for replacing sintering clay bricks.
Modified building residue baking-free brick
RONG HUI (Autor:in) / WANG XUEPING (Autor:in)
02.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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