Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention relates to the technical field of thermal insulation mortar, and provides flexible anti-crack plastering mortar for external thermal insulation of an external wall and a preparation method thereof. The mortar is prepared from flexible silicon dioxide aerogel wrapping vitrified micro bubbles, cement, coal ash, water, a water reducing agent, a thickening agent and redispersible latex powder. Compared with a traditional method, the preparation method comprises the following steps: the flexible silicon dioxide aerogel is prepared; the vitrified microbeads are wrapped in the network structure of the aerogel, so that the rigid vitrified microbeads are not in direct contact with other components in the mortar, but are in contact with the flexible silicon dioxide aerogel, stress concentration at an interface under the action of external force can be prevented, microcracks are prevented from being generated, and the crack resistance of the thermal insulation mortar is enhanced. According to the invention, the thermal insulation mortar with good flexibility is prepared under the condition of not adding anti-cracking fibers.
本发明涉及保温砂浆的技术领域，提供了一种用于外墙外保温的柔性抗裂抹面砂浆及制备方法。所述砂浆由包裹玻化微珠的柔性二氧化硅气凝胶、水泥、粉煤灰、水、减水剂、增稠剂、可再分散乳胶粉组成。与传统方法相比，本发明通过制备柔性的二氧化硅气凝胶，并将玻化微珠包裹在气凝胶的网络结构内部，使刚性的玻化微珠不直接与砂浆中的其他组分接触，而是通过柔性的二氧化硅气凝胶进行接触，可防止外力作用下界面处出现应力集中，防止微裂纹的产生，从而增强保温砂浆的抗裂能力。本发明在不添加抗裂纤维的情况下，制得了具有良好柔性的保温砂浆。
The invention relates to the technical field of thermal insulation mortar, and provides flexible anti-crack plastering mortar for external thermal insulation of an external wall and a preparation method thereof. The mortar is prepared from flexible silicon dioxide aerogel wrapping vitrified micro bubbles, cement, coal ash, water, a water reducing agent, a thickening agent and redispersible latex powder. Compared with a traditional method, the preparation method comprises the following steps: the flexible silicon dioxide aerogel is prepared; the vitrified microbeads are wrapped in the network structure of the aerogel, so that the rigid vitrified microbeads are not in direct contact with other components in the mortar, but are in contact with the flexible silicon dioxide aerogel, stress concentration at an interface under the action of external force can be prevented, microcracks are prevented from being generated, and the crack resistance of the thermal insulation mortar is enhanced. According to the invention, the thermal insulation mortar with good flexibility is prepared under the condition of not adding anti-cracking fibers.
本发明涉及保温砂浆的技术领域，提供了一种用于外墙外保温的柔性抗裂抹面砂浆及制备方法。所述砂浆由包裹玻化微珠的柔性二氧化硅气凝胶、水泥、粉煤灰、水、减水剂、增稠剂、可再分散乳胶粉组成。与传统方法相比，本发明通过制备柔性的二氧化硅气凝胶，并将玻化微珠包裹在气凝胶的网络结构内部，使刚性的玻化微珠不直接与砂浆中的其他组分接触，而是通过柔性的二氧化硅气凝胶进行接触，可防止外力作用下界面处出现应力集中，防止微裂纹的产生，从而增强保温砂浆的抗裂能力。本发明在不添加抗裂纤维的情况下，制得了具有良好柔性的保温砂浆。
Flexible anti-cracking plastering mortar for external thermal insulation of external wall and preparation method thereof
一种用于外墙外保温的柔性抗裂抹面砂浆及制备方法
CAI JIE (Autor:in)
23.06.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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