Research and application for key technology of anti-cracking of acrylic emulsion mortar

[摘要] Acrylic emulsion mortar is an ideal material of repair and reinforcement for concrete anti-carbonation and erosion, and it has been widely used in the reinforcement of culvert and sluice in recent years. When it is used, shrinkage stress occurs inside the mortar. Once this shrinkage stress exceeds the tensile strength of the mortar, cracks will appear in the mortar, which will seriously affect the construction quality and increase the repair rate or warranty workload. In this paper, the key technology of anti-cracking of acrylic emulsion mortar is studied, characteristic is analyzed of acrylic emulsion mortar protection, and various anti-cracking parameters are proposed. This key technology is verified through the application in the Dongchi sluice reinforcement project. When the technology has achieved economic benefits, it also achieved social benefits. In the future, the application prospects of the key technology of acrylic emulsion mortar anti-cracking in the culvert and sluice reinforcement project in the Yellow River Basin are very broad.

[学科分类] 材料科学（综合）