Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Solid waste-based sulphoaluminate cement modified building gypsum-based self-leveling mortar
The invention discloses solid waste-based sulphoaluminate cement modified building gypsum-based self-leveling mortar, which is prepared from the following components in parts by weight: 5 to 15 parts of solid waste-based sulphoaluminate cement, 70 to 85 parts of desulfurized building gypsum, 5 to 15 parts of sandstone material, 0.2 to 1.0 part of water reducing agent, 0.1 to 0.5 part of gypsum retarder and 0.02 to 0.1 part of suspending agent, wherein the water-solid ratio is (3 to 5): (5 to 7); the preparation method comprises the following steps: uniformly mixing the raw materials according to a set mass ratio, and stirring at a low speed of 140-150rad/s for 50-70s; then, the mixture is mixed at the high speed of 250-300 rad/s for 50-70 s; and after standing for 50-80 seconds, continuously mixing at a high speed of 250-300 rad/s for 10-20 seconds. The sulphoaluminate cement prepared from all solid wastes not only can solve the problems of expensive raw materials and high cost of high-performance sulphoaluminate cement and reduce the production cost of the gypsum-based self-leveling mortar, but also can solve the problem of high-value utilization of the solid wastes and realize low-cost preparation of the high-performance gypsum-based self-leveling mortar.
本发明公开了一种固废基硫铝酸盐水泥改性建筑石膏基自流平砂浆，由以下重量份的组分组成：固废基硫铝酸盐水泥5‑15份，脱硫建筑石膏70‑85份，砂石料5‑15份，减水剂0.2‑1.0份，石膏缓凝剂0.1‑0.5份，悬浮剂0.02‑0.1份，水固比为3‑5:5‑7；制备方法为：将各原料按设定质量比混合均匀后，先140‑150rad/s低速拌合50‑70s；再250‑300rad/s高速拌合50‑70s；静停50‑80s后，再继续250‑300rad/s高速拌合10‑20s。利用全固废制备的硫铝酸盐水泥，不仅可以解决高性能硫铝酸盐水泥原料昂贵、成本高的问题，降低石膏基自流平砂浆的生产成本，同时还可以解决固废的高值利用难题，实现高性能石膏基自流平砂浆的低成本制备。
Solid waste-based sulphoaluminate cement modified building gypsum-based self-leveling mortar
The invention discloses solid waste-based sulphoaluminate cement modified building gypsum-based self-leveling mortar, which is prepared from the following components in parts by weight: 5 to 15 parts of solid waste-based sulphoaluminate cement, 70 to 85 parts of desulfurized building gypsum, 5 to 15 parts of sandstone material, 0.2 to 1.0 part of water reducing agent, 0.1 to 0.5 part of gypsum retarder and 0.02 to 0.1 part of suspending agent, wherein the water-solid ratio is (3 to 5): (5 to 7); the preparation method comprises the following steps: uniformly mixing the raw materials according to a set mass ratio, and stirring at a low speed of 140-150rad/s for 50-70s; then, the mixture is mixed at the high speed of 250-300 rad/s for 50-70 s; and after standing for 50-80 seconds, continuously mixing at a high speed of 250-300 rad/s for 10-20 seconds. The sulphoaluminate cement prepared from all solid wastes not only can solve the problems of expensive raw materials and high cost of high-performance sulphoaluminate cement and reduce the production cost of the gypsum-based self-leveling mortar, but also can solve the problem of high-value utilization of the solid wastes and realize low-cost preparation of the high-performance gypsum-based self-leveling mortar.
本发明公开了一种固废基硫铝酸盐水泥改性建筑石膏基自流平砂浆，由以下重量份的组分组成：固废基硫铝酸盐水泥5‑15份，脱硫建筑石膏70‑85份，砂石料5‑15份，减水剂0.2‑1.0份，石膏缓凝剂0.1‑0.5份，悬浮剂0.02‑0.1份，水固比为3‑5:5‑7；制备方法为：将各原料按设定质量比混合均匀后，先140‑150rad/s低速拌合50‑70s；再250‑300rad/s高速拌合50‑70s；静停50‑80s后，再继续250‑300rad/s高速拌合10‑20s。利用全固废制备的硫铝酸盐水泥，不仅可以解决高性能硫铝酸盐水泥原料昂贵、成本高的问题，降低石膏基自流平砂浆的生产成本，同时还可以解决固废的高值利用难题，实现高性能石膏基自流平砂浆的低成本制备。
Solid waste-based sulphoaluminate cement modified building gypsum-based self-leveling mortar
固废基硫铝酸盐水泥改性建筑石膏基自流平砂浆
LI JINGWEI (Autor:in) / XIAO XIN (Autor:in) / WANG WENLONG (Autor:in) / WANG XUJIANG (Autor:in) / JIA AIGUANG (Autor:in) / HOU XIANGSHAN (Autor:in) / MAO YANPENG (Autor:in) / LIU QUANXUN (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Desulfurized building gypsum-based self-leveling mortar
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