Preparation method of wet-mixed mortar with high water retention rate

Abstract

The invention discloses a preparation method of wet-mixed mortar with a high water retention rate. The preparation method comprises the following steps: stirring coal cinder, tailings machine-made sand, cement, diatomite, a castor oil complex substance and water, adding a plastic stabilizing agent, glass fiber, a retarder and a water reducing agent, and uniformly stirring the materials to obtain wet-mixed mortar with a high water retention rate. The castor oil complex substance is prepared by the following process: mixing castor oil, dibutyltin dilaurate and toluene diisocyanate, carrying outheating and stirring under the protection of nitrogen, adding epoxidized soybean oil, carrying out stirring continuously, adding phthalic anhydride and N,N-dimethylbenzylamine, and carrying out heating and stirring to obtain the castor oil complex substance. The preparation method of the wet-mixed mortar with a high water retention rate, provided by the invention, not only realizes reasonable utilization of resources and reduces the environmental pollution caused by waste stone chips, but also reduces the production cost of the mortar, enhances the water retention rate and viscosity of the mortar, prolongs the setting time of the mortar, and ensures use continuity of the mortar.

Description

technical field [0001] The invention relates to the technical field of wet-mixed mortar, in particular to a method for preparing wet-mixed mortar with a high water retention rate. Background technique [0002] Ordinary site-mixed mortar is mixed with cement, river sand, and clear water, and after hardening, it plays the role of bonding building materials together to form a solid whole. With the technological progress of the construction industry and the improvement of civilized construction requirements, the on-site mixing mortar has increasingly shown its inherent defects, such as unstable mortar quality, large waste of materials, single type of mortar, low degree of civilized construction, and environmental pollution. Therefore, it is imperative to adopt industrially produced wet-mixed mortar, but at present, wet-mixed mortar has the defect of poor water retention, which has become a shortcoming restricting its development. Contents of the invention [0003] Based on th...

AI Technical Summary

Problems solved by technology

With the technological progress of the construction industry and the improvement of civilized construction requirements, on-site mortar mixing has increasingly shown its inherent defects, such as unstable mortar quality, large waste of materials, single type of mortar, low degree of civilized construction, and environmental pollution.

Therefore, it is imperative to adopt industrially produced wet-mixed mortar, but at present, wet-mixed mortar has the defect of poor water retention, which has become a shortcoming restricting its development