A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mortar with self-repairing function and preparation method thereof
The invention belongs to the technical field of building materials, and particularly relates to mortar with a self-repairing function, which is prepared from the following components: 25 parts of water, 100 parts of cement, 180 parts of sand, 0.3 part of water reducing agent, 1.3 parts of PVA fiber, 1.5 parts of crystallization additive and 10 parts of calcium sulphoaluminate-based expansion additive. Through the crystallization additive and the calcium sulphoaluminate-based expansion additive, a large amount of calcium hydroxide crystals and C-S-H gel are generated in the cement hydration process, the mechanical property and the self-repairing function of a mortar structure are greatly improved, generation of large cracks of a mortar matrix can be controlled, the mortar has certain deformation capacity, and in the early stage of mortar crack generation, the mortar has good crack resistance. And effective repairing can be carried out automatically, the cost generated by repairing mortar cracks in engineering is reduced, and further guarantee is provided for safety, economical efficiency and durability of a mortar structure.
本发明属于建筑材料技术领域，具体涉及一种具有自修复功能的砂浆，由以下组分构成：25份水、100份水泥、180份砂、0.3份减水剂、1.3份PVA纤维、1.5份结晶添加剂、10份硫铝酸钙基膨胀添加剂。本发明通过结晶添加剂以及硫铝酸钙基膨胀添加剂使得水泥水化过程产生大量氢氧化钙晶体以及C–S–H凝胶，大幅提高砂浆结构的力学性能以及自修复功能，并能够控制砂浆基体大裂缝的产生，具有一定的形变能力，在砂浆裂缝产生初期，可自行进行有效的修复，减低工程中修复砂浆裂缝所产生的费用，为砂浆结构的安全性、经济性和耐久性提供进一步的保障。
Mortar with self-repairing function and preparation method thereof
The invention belongs to the technical field of building materials, and particularly relates to mortar with a self-repairing function, which is prepared from the following components: 25 parts of water, 100 parts of cement, 180 parts of sand, 0.3 part of water reducing agent, 1.3 parts of PVA fiber, 1.5 parts of crystallization additive and 10 parts of calcium sulphoaluminate-based expansion additive. Through the crystallization additive and the calcium sulphoaluminate-based expansion additive, a large amount of calcium hydroxide crystals and C-S-H gel are generated in the cement hydration process, the mechanical property and the self-repairing function of a mortar structure are greatly improved, generation of large cracks of a mortar matrix can be controlled, the mortar has certain deformation capacity, and in the early stage of mortar crack generation, the mortar has good crack resistance. And effective repairing can be carried out automatically, the cost generated by repairing mortar cracks in engineering is reduced, and further guarantee is provided for safety, economical efficiency and durability of a mortar structure.
本发明属于建筑材料技术领域，具体涉及一种具有自修复功能的砂浆，由以下组分构成：25份水、100份水泥、180份砂、0.3份减水剂、1.3份PVA纤维、1.5份结晶添加剂、10份硫铝酸钙基膨胀添加剂。本发明通过结晶添加剂以及硫铝酸钙基膨胀添加剂使得水泥水化过程产生大量氢氧化钙晶体以及C–S–H凝胶，大幅提高砂浆结构的力学性能以及自修复功能，并能够控制砂浆基体大裂缝的产生，具有一定的形变能力，在砂浆裂缝产生初期，可自行进行有效的修复，减低工程中修复砂浆裂缝所产生的费用，为砂浆结构的安全性、经济性和耐久性提供进一步的保障。
Mortar with self-repairing function and preparation method thereof
一种具有自修复功能的砂浆及其制备方法
JI JIAKUN (author) / ZHANG ZUOHAI (author) / ZHAO QINGYIN (author) / GE XUYAO (author) / LI ZHE (author) / ZHANG TIANTIAN (author) / HU WEN (author) / WANG LU (author) / LI PU (author) / QIAN BO (author)
2024-04-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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