A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for manufacturing backfilling and self-leveling mortar from construction waste desulfurized gypsum double wastes
The invention discloses a method for manufacturing a backfilling and self-leveling mortar from construction waste desulfurized gypsum double wastes. The method comprises the following steps: S1, carrying out preliminary drying and dewatering treatment on the construction waste and the desulfurized gypsum, carrying out crushing treatment on the construction waste and the desulfurized gypsum to prepare gypsum powder and construction waste particles, screening the construction waste, and reserving the construction waste with the particle size of 30-140 meshes; S2, drying the gypsum powder and theconstruction waste particles prepared in step S1 to make the water content of the gypsum powder and the construction waste particles smaller than or equal to 5%; and S3, uniformly mixing the dried construction waste particles, gypsum powder, cement, fly ash and an additive to prepare the dry-mixed mortar. By treating the construction waste and the desulfurized gypsum, the construction waste withthe granularity of 30-140 meshes can replace natural sand to manufacture the self-leveling mortar, and due to the fact that the specific gravity of the construction waste is low, the settling velocityof the construction waste in mortar can be increased under the proper proportion, and the mortar is more uniform and stable.
本发明公开了建筑垃圾脱硫石膏双废用于回填自流平，包括以下步骤：S1：将建筑垃圾以及脱硫石膏进行初步烘干去水处理，并且对建筑垃圾以及脱硫石膏进行粉碎处理，将其制成石膏粉末以及建筑垃圾颗粒，并且对建筑垃圾进行筛分，保留颗粒大小为30～140目的建筑垃圾；S2：对S1中制得的石膏粉以及建筑垃圾颗粒进行烘干处理，使其含水率≤5％；S3：将烘干后的建筑垃圾颗粒、石膏粉末、水泥、粉煤灰以及添加剂混合均匀，制成干混砂浆。本发明通过对建筑垃圾以及脱硫石膏进行处理，使得粒度在30～140目的建筑垃圾可代替天然砂，制造自流平，由于其比重较轻，在合适的配比下，会延长在砂浆中的沉降速度，使砂浆更加均匀，稳定。
Method for manufacturing backfilling and self-leveling mortar from construction waste desulfurized gypsum double wastes
The invention discloses a method for manufacturing a backfilling and self-leveling mortar from construction waste desulfurized gypsum double wastes. The method comprises the following steps: S1, carrying out preliminary drying and dewatering treatment on the construction waste and the desulfurized gypsum, carrying out crushing treatment on the construction waste and the desulfurized gypsum to prepare gypsum powder and construction waste particles, screening the construction waste, and reserving the construction waste with the particle size of 30-140 meshes; S2, drying the gypsum powder and theconstruction waste particles prepared in step S1 to make the water content of the gypsum powder and the construction waste particles smaller than or equal to 5%; and S3, uniformly mixing the dried construction waste particles, gypsum powder, cement, fly ash and an additive to prepare the dry-mixed mortar. By treating the construction waste and the desulfurized gypsum, the construction waste withthe granularity of 30-140 meshes can replace natural sand to manufacture the self-leveling mortar, and due to the fact that the specific gravity of the construction waste is low, the settling velocityof the construction waste in mortar can be increased under the proper proportion, and the mortar is more uniform and stable.
本发明公开了建筑垃圾脱硫石膏双废用于回填自流平，包括以下步骤：S1：将建筑垃圾以及脱硫石膏进行初步烘干去水处理，并且对建筑垃圾以及脱硫石膏进行粉碎处理，将其制成石膏粉末以及建筑垃圾颗粒，并且对建筑垃圾进行筛分，保留颗粒大小为30～140目的建筑垃圾；S2：对S1中制得的石膏粉以及建筑垃圾颗粒进行烘干处理，使其含水率≤5％；S3：将烘干后的建筑垃圾颗粒、石膏粉末、水泥、粉煤灰以及添加剂混合均匀，制成干混砂浆。本发明通过对建筑垃圾以及脱硫石膏进行处理，使得粒度在30～140目的建筑垃圾可代替天然砂，制造自流平，由于其比重较轻，在合适的配比下，会延长在砂浆中的沉降速度，使砂浆更加均匀，稳定。
Method for manufacturing backfilling and self-leveling mortar from construction waste desulfurized gypsum double wastes
建筑垃圾脱硫石膏双废用于回填自流平
MENG QINGGANG (author) / LIU XIANGQIAN (author)
2020-09-15
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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