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A platform for research: civil engineering, architecture and urbanism
Toughened cement mortar and preparation method thereof
The invention belongs to the field of building materials, and particularly relates to toughened cement mortar and a preparation method thereof. The toughened cement mortar comprises cement, diatomite, water, a polyurethane solution, an epoxy resin emulsion, modified silicon dioxide nanotubes, a toughening agent stearoyl chloride, lignin sulfonate, acrylate, a solubilizer and a water reducing agent. The chemically modified silicon oxide nanotube can be fully dispersed in a concrete system through surface carboxylation, so that the synergistic effect of different toughening materials can be better exerted. The polyurethane solution, the epoxy resin emulsion, the modified silicon dioxide nanotube, the toughening agent stearoyl chloride, the sulfonated lignin and the acrylate are effectively combined to form a unique composite toughening system. After grouting, the high strength is achieved, the strength of 40 MPa or above can be obtained, the good toughness and crack resistance are achieved, and the later-period maintenance cost of a project is effectively reduced.
本发明属于建筑材料领域，尤其是一种增韧的水泥砂浆及其制备方法。本发明的增韧的水泥砂浆，包括水泥、硅藻土、水、聚氨酯溶液，环氧树脂乳液，改性二氧化硅纳米管、增韧剂硬脂酰氯，磺化木质素，丙烯酸盐，增溶剂，减水剂。化学改性后的氧化硅纳米管通过表面羧基化可以在混凝土体系中充分分散，更好地发挥不同增韧材料的协同效果。聚氨酯溶液，环氧树脂乳液，改性二氧化硅纳米管、增韧剂硬脂酰氯，磺化木质素，丙烯酸盐有效结合，形成了一种独特的复合增韧体系。灌浆后具有很高的强度，可以得到40MPa以上的强度，很好的韧性与抗裂性，有效减少工程后期维护费用。
Toughened cement mortar and preparation method thereof
The invention belongs to the field of building materials, and particularly relates to toughened cement mortar and a preparation method thereof. The toughened cement mortar comprises cement, diatomite, water, a polyurethane solution, an epoxy resin emulsion, modified silicon dioxide nanotubes, a toughening agent stearoyl chloride, lignin sulfonate, acrylate, a solubilizer and a water reducing agent. The chemically modified silicon oxide nanotube can be fully dispersed in a concrete system through surface carboxylation, so that the synergistic effect of different toughening materials can be better exerted. The polyurethane solution, the epoxy resin emulsion, the modified silicon dioxide nanotube, the toughening agent stearoyl chloride, the sulfonated lignin and the acrylate are effectively combined to form a unique composite toughening system. After grouting, the high strength is achieved, the strength of 40 MPa or above can be obtained, the good toughness and crack resistance are achieved, and the later-period maintenance cost of a project is effectively reduced.
本发明属于建筑材料领域，尤其是一种增韧的水泥砂浆及其制备方法。本发明的增韧的水泥砂浆，包括水泥、硅藻土、水、聚氨酯溶液，环氧树脂乳液，改性二氧化硅纳米管、增韧剂硬脂酰氯，磺化木质素，丙烯酸盐，增溶剂，减水剂。化学改性后的氧化硅纳米管通过表面羧基化可以在混凝土体系中充分分散，更好地发挥不同增韧材料的协同效果。聚氨酯溶液，环氧树脂乳液，改性二氧化硅纳米管、增韧剂硬脂酰氯，磺化木质素，丙烯酸盐有效结合，形成了一种独特的复合增韧体系。灌浆后具有很高的强度，可以得到40MPa以上的强度，很好的韧性与抗裂性，有效减少工程后期维护费用。
Toughened cement mortar and preparation method thereof
一种增韧的水泥砂浆及其制备方法
WANG YAJUN (author) / XU RONGPING (author) / WANG LI (author)
2023-01-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023