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A platform for research: civil engineering, architecture and urbanism
Polymer anti-crack mortar
The invention discloses polymer anti-crack mortar, and belongs to the technical field of building mortar. The polymer anti-crack mortar comprises cement, fine aggregate, cellulose ether, modified polypropylene fiber and redispersible latex powder, wherein polypropylene fibers are subjected to pretreatment, chemical modification, washing and drying to obtain the modified polypropylene fibers, aminopropyltrimethoxysilane and diacetone acrylamide are used for modifying the polypropylene fibers in the chemical modification, the modified polypropylene fibers can effectively improve the crack resistance, the impermeability and the tensile strength of mortar, and the modified polypropylene fibers have the increased bonding strength with cement, can improve the dispersity of all the raw materialsof the mortar, and can improve the compressive strength and the rupture strength of the mortar while micro-cracks are inhibited from being generated in the mortar, so that the comprehensive performance of the mortar is remarkably improved.
本发明公开了一种聚合物抗裂砂浆，属于建筑砂浆技术领域，一种聚合物抗裂砂浆，包括水泥、细骨料、纤维素醚、改性聚丙烯纤维以及可再分散性乳胶粉；聚丙烯纤维经过预处理、化学改性以及洗涤干燥后，得到改性聚丙烯纤维，其中化学改性中采用氨丙基三甲氧基硅烷以及双丙酮丙烯酰胺对聚丙烯纤维进行改性，改性聚丙烯纤维可以有效的提高砂浆的抗裂性能、抗渗性能以及抗拉强度，并且经过改性处理的后的聚丙烯纤维，其与水泥的粘结强度增加，可以提高砂浆各原料的分散性，在抑制砂浆的内部产生微裂缝的时候，可以改善砂浆的抗压强度以及抗折强度，从而使砂浆的综合性能显著提高。
Polymer anti-crack mortar
The invention discloses polymer anti-crack mortar, and belongs to the technical field of building mortar. The polymer anti-crack mortar comprises cement, fine aggregate, cellulose ether, modified polypropylene fiber and redispersible latex powder, wherein polypropylene fibers are subjected to pretreatment, chemical modification, washing and drying to obtain the modified polypropylene fibers, aminopropyltrimethoxysilane and diacetone acrylamide are used for modifying the polypropylene fibers in the chemical modification, the modified polypropylene fibers can effectively improve the crack resistance, the impermeability and the tensile strength of mortar, and the modified polypropylene fibers have the increased bonding strength with cement, can improve the dispersity of all the raw materialsof the mortar, and can improve the compressive strength and the rupture strength of the mortar while micro-cracks are inhibited from being generated in the mortar, so that the comprehensive performance of the mortar is remarkably improved.
本发明公开了一种聚合物抗裂砂浆，属于建筑砂浆技术领域，一种聚合物抗裂砂浆，包括水泥、细骨料、纤维素醚、改性聚丙烯纤维以及可再分散性乳胶粉；聚丙烯纤维经过预处理、化学改性以及洗涤干燥后，得到改性聚丙烯纤维，其中化学改性中采用氨丙基三甲氧基硅烷以及双丙酮丙烯酰胺对聚丙烯纤维进行改性，改性聚丙烯纤维可以有效的提高砂浆的抗裂性能、抗渗性能以及抗拉强度，并且经过改性处理的后的聚丙烯纤维，其与水泥的粘结强度增加，可以提高砂浆各原料的分散性，在抑制砂浆的内部产生微裂缝的时候，可以改善砂浆的抗压强度以及抗折强度，从而使砂浆的综合性能显著提高。
Polymer anti-crack mortar
一种聚合物抗裂砂浆
ZHANG LIJUN (author) / WEI CHANGSHUN (author) / HAN GUOZHU (author)
2020-06-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Polymer anti-crack mortar formula and preparation process thereof
| European Patent Office | 2021