A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-impermeability cement-based repairing mortar with crack self-sealing function and preparation method
The invention relates to high-impermeability cement-based repair mortar with a crack self-sealing function and a preparation method, and is suitable for the technical field of building materials. The repair mortar is prepared from the following components in parts by mass: 100 parts of sulphoaluminate cement, 150 to 300 parts of quartz sand, 5 to 16 parts of super absorbent resin SAP, 2 to 9 parts of waterborne epoxy resin emulsion, 1.4 to 6.4 parts of curing agent, 0.5 to 1 part of water reducing agent, 0.1 to 0.3 part of defoaming agent and 20 to 35 parts of water. The super absorbent resin needs to be pretreated by adopting a high-concentration calcium salt solution before being used. The cement-based repairing mortar provided by the invention not only has a good bonding effect with matrix concrete, but also has a crack self-sealing function when underground water permeates, so that a good anti-permeability effect is achieved, and the repairing efficiency of underground engineering concrete under high-water-content geology can be effectively improved.
本发明为具有自封闭裂缝功能的高抗渗水泥基修补砂浆及制备方法，适用于建筑材料技术领域，提供一种修补砂浆包含的组分以及各组分的质量份配比如下：硫铝酸盐水泥100份、石英砂150～300份、高吸水性树脂SAP5～16份、水性环氧树脂乳液2～9份、固化剂1.4～6.4份、减水剂0.5～1份、消泡剂0.1～0.3份、水20～35份。其中高吸水性树脂使用前需采用高浓度钙盐溶液预处理。本发明提供的水泥基修补砂浆不但与基体混凝土具有良好的粘结效果，而且在有地下水渗透时具有自封闭裂缝功能，从而起到良好的抗渗效果，可有效提升高含水地质下地下工程混凝土的修补效率。
High-impermeability cement-based repairing mortar with crack self-sealing function and preparation method
The invention relates to high-impermeability cement-based repair mortar with a crack self-sealing function and a preparation method, and is suitable for the technical field of building materials. The repair mortar is prepared from the following components in parts by mass: 100 parts of sulphoaluminate cement, 150 to 300 parts of quartz sand, 5 to 16 parts of super absorbent resin SAP, 2 to 9 parts of waterborne epoxy resin emulsion, 1.4 to 6.4 parts of curing agent, 0.5 to 1 part of water reducing agent, 0.1 to 0.3 part of defoaming agent and 20 to 35 parts of water. The super absorbent resin needs to be pretreated by adopting a high-concentration calcium salt solution before being used. The cement-based repairing mortar provided by the invention not only has a good bonding effect with matrix concrete, but also has a crack self-sealing function when underground water permeates, so that a good anti-permeability effect is achieved, and the repairing efficiency of underground engineering concrete under high-water-content geology can be effectively improved.
本发明为具有自封闭裂缝功能的高抗渗水泥基修补砂浆及制备方法，适用于建筑材料技术领域，提供一种修补砂浆包含的组分以及各组分的质量份配比如下：硫铝酸盐水泥100份、石英砂150～300份、高吸水性树脂SAP5～16份、水性环氧树脂乳液2～9份、固化剂1.4～6.4份、减水剂0.5～1份、消泡剂0.1～0.3份、水20～35份。其中高吸水性树脂使用前需采用高浓度钙盐溶液预处理。本发明提供的水泥基修补砂浆不但与基体混凝土具有良好的粘结效果，而且在有地下水渗透时具有自封闭裂缝功能，从而起到良好的抗渗效果，可有效提升高含水地质下地下工程混凝土的修补效率。
High-impermeability cement-based repairing mortar with crack self-sealing function and preparation method
具有自封闭裂缝功能的高抗渗水泥基修补砂浆及制备方法
YUAN JUN (author) / LI WEN (author) / WANG YONG (author) / HU KAI (author) / XU ZHEN (author) / SUN KAI (author) / ZHANG ZEYONG (author) / FANG YUXUAN (author)
2021-05-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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