A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Calcination-free dihydrate gypsum-based waterproof anti-cracking plastering mortar
Belonging to the technical field of building mortar, the invention provides a calcination-free dihydrate gypsum-based waterproof anti-crack plastering mortar, which is prepared from 20-60 parts of dihydrate gypsum, 0-10 parts of Portland cement, 0-20 parts of slaked lime, 30-60 parts of volcanic ash active substance, 0.2 part of superplasticizer, 0.05 part of cellulose ether and 0.05 part of fiber. The water resistance coefficient of the dihydrate gypsum-based plastering mortar is 0.85 or above, the 28d compressive strength is 15.0 MPa or above, the water retention rate reaches 99.0%, the setting time is 6-8 h, the 14d tensile adhesive strength is larger than 0.5 MPa, the mortar cracking problem caused by volume shrinkage can be relieved through micro-expansion in the using process, and the freezing resistance meets the national standard. The mortar uses a lot of solid wastes, and the dihydrate gypsum can be used without calcining, so that the production cost is greatly saved, and the mortar is green, environment-friendly, low-carbon and energy-saving.
本发明提供了一种免煅烧二水石膏基耐水抗裂的抹灰砂浆，属于建筑砂浆技术领域，包括：二水石膏20～60份、硅酸盐水泥0～10份、熟石灰0～20份、火山灰活性物质30～60份、高效减水剂0.2份、纤维素醚0.05份和纤维0.05份。本发明提供的二水石膏基抹灰砂浆耐水系数0.85以上，28d抗压强度15.0MPa以上，保水率均达到99.0％，凝结时间6～8h，14d拉伸粘结强度大于0.5MPa，使用过程微膨胀可缓解体积收缩带来的砂浆开裂问题，抗冻性符合国家标准。砂浆大量使用固体废弃物，二水石膏不需煅烧即可使用，大大节约了生产成本，绿色环保，低碳节能。
Calcination-free dihydrate gypsum-based waterproof anti-cracking plastering mortar
Belonging to the technical field of building mortar, the invention provides a calcination-free dihydrate gypsum-based waterproof anti-crack plastering mortar, which is prepared from 20-60 parts of dihydrate gypsum, 0-10 parts of Portland cement, 0-20 parts of slaked lime, 30-60 parts of volcanic ash active substance, 0.2 part of superplasticizer, 0.05 part of cellulose ether and 0.05 part of fiber. The water resistance coefficient of the dihydrate gypsum-based plastering mortar is 0.85 or above, the 28d compressive strength is 15.0 MPa or above, the water retention rate reaches 99.0%, the setting time is 6-8 h, the 14d tensile adhesive strength is larger than 0.5 MPa, the mortar cracking problem caused by volume shrinkage can be relieved through micro-expansion in the using process, and the freezing resistance meets the national standard. The mortar uses a lot of solid wastes, and the dihydrate gypsum can be used without calcining, so that the production cost is greatly saved, and the mortar is green, environment-friendly, low-carbon and energy-saving.
本发明提供了一种免煅烧二水石膏基耐水抗裂的抹灰砂浆，属于建筑砂浆技术领域，包括：二水石膏20～60份、硅酸盐水泥0～10份、熟石灰0～20份、火山灰活性物质30～60份、高效减水剂0.2份、纤维素醚0.05份和纤维0.05份。本发明提供的二水石膏基抹灰砂浆耐水系数0.85以上，28d抗压强度15.0MPa以上，保水率均达到99.0％，凝结时间6～8h，14d拉伸粘结强度大于0.5MPa，使用过程微膨胀可缓解体积收缩带来的砂浆开裂问题，抗冻性符合国家标准。砂浆大量使用固体废弃物，二水石膏不需煅烧即可使用，大大节约了生产成本，绿色环保，低碳节能。
Calcination-free dihydrate gypsum-based waterproof anti-cracking plastering mortar
一种免煅烧二水石膏基耐水抗裂的抹灰砂浆
ZHANG FAN (author) / WANG JINYU (author) / ZHANG FANGYING (author) / DAN JIANMING (author) / BAO FUXI (author) / LI HONGLING (author) / HONG CHENGLIN (author)
2023-07-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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