A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Polymer internal curing mortar and preparation method thereof
The invention provides polymer internal curing mortar and a preparation method thereof, and belongs to the technical field of building materials. The invention provides polymer internal curing mortar. The polymer internal curing mortar is prepared from the following components in parts by weight: 450 to 500 parts of cement, 1,350 to 1,500 parts of standard sand, 18 to 20 parts of a polymer internal curing material, 2.25 to 6.75 parts of calcium nitrite and 225 to 250 parts of water. According to the invention, calcium nitrite is used as an inorganic early strength component, the polymer internal curing material is modified by using calcium nitrite, calcium nitrite can promote cement hydration and ensure stable increase of early strength, and while the internal curing property (adjusting the internal humidity of mortar and inhibiting shrinkage) of the traditional polymer internal curing material is ensured, the problem that early strength of polymer internal curing mortar can be reduced in the early stage of cement hydration is solved, and compared with blank group mortar without addition of any additive, the strength is not reduced.
本发明提供了一种聚合物内养护砂浆及其制备方法，属于建筑材料技术领域。本发明提供了一种聚合物内养护砂浆，包括以下重量份数的组分：水泥450～500份、标准砂1350～1500份、聚合物内养护材料18～20份、亚硝酸钙2.25～6.75份和水225～250份。本发明以亚硝酸钙为无机早强组分，利用亚硝酸钙对聚合物内养护材料进行改性，亚硝酸钙会促进水泥水化，保证前期强度的稳步增长，在保证传统聚合物内养护材料自身内养护性质(调整砂浆内部湿度，抑制收缩)的同时，弥补了聚合物内养护砂浆在水泥水化前期会降低早期强度的问题，且与无任何外加剂添加的空白组砂浆相比强度不降低。
Polymer internal curing mortar and preparation method thereof
The invention provides polymer internal curing mortar and a preparation method thereof, and belongs to the technical field of building materials. The invention provides polymer internal curing mortar. The polymer internal curing mortar is prepared from the following components in parts by weight: 450 to 500 parts of cement, 1,350 to 1,500 parts of standard sand, 18 to 20 parts of a polymer internal curing material, 2.25 to 6.75 parts of calcium nitrite and 225 to 250 parts of water. According to the invention, calcium nitrite is used as an inorganic early strength component, the polymer internal curing material is modified by using calcium nitrite, calcium nitrite can promote cement hydration and ensure stable increase of early strength, and while the internal curing property (adjusting the internal humidity of mortar and inhibiting shrinkage) of the traditional polymer internal curing material is ensured, the problem that early strength of polymer internal curing mortar can be reduced in the early stage of cement hydration is solved, and compared with blank group mortar without addition of any additive, the strength is not reduced.
本发明提供了一种聚合物内养护砂浆及其制备方法，属于建筑材料技术领域。本发明提供了一种聚合物内养护砂浆，包括以下重量份数的组分：水泥450～500份、标准砂1350～1500份、聚合物内养护材料18～20份、亚硝酸钙2.25～6.75份和水225～250份。本发明以亚硝酸钙为无机早强组分，利用亚硝酸钙对聚合物内养护材料进行改性，亚硝酸钙会促进水泥水化，保证前期强度的稳步增长，在保证传统聚合物内养护材料自身内养护性质(调整砂浆内部湿度，抑制收缩)的同时，弥补了聚合物内养护砂浆在水泥水化前期会降低早期强度的问题，且与无任何外加剂添加的空白组砂浆相比强度不降低。
Polymer internal curing mortar and preparation method thereof
一种聚合物内养护砂浆及其制备方法
LIU RONGJIN (author) / GAO TIANYU (author) / CHEN PING (author) / JING DAIYAN (author) / CHEN MEIHUA (author) / WANG JINGYANG (author) / FAN JINTAO (author) / WAN DANDAN (author) / FU SIYUAN (author) / XU PENGJIE (author)
2021-12-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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