Material for improving mortar coagulating time and operability and use method thereof

Abstract

The invention relates to a material for improving mortar coagulating time and operability and a use method thereof. The material comprises the following raw materials in mortar per cubic meter: 15-20kg of calcium bentonite, 10-15kg of sodium bentonite, 1.2-1.5kg of calcium lignosulfonate, and 0.5-1.0kg of sodium tripolyphosphate. By using the invention, the workable performance of cement mortar can be significantly improved, the mechanical property of the cement mortar is not damaged, the mortar has higher tensile bond strength, and the impermeability of the mortar can be greatly increased. The component of retarder is mingled with products, and therefore, the coagulating time can be adjusted on a large scale. After the retarder is added, the coagulating time of the mortar can be prolonged and adjusted, and the mortar has the advantages of good water retention and little weepage. In addition, when the commercial mortar of the invention is used, environmental pollution can be decreased, and project quality is increased, which is beneficial to increasing construction efficiency. Because of little product amount, obvious effect and low cost, the material is quite suitable for preparing pre-mixed mortar and dry-mixed mortar for ordinary masonry, plaster, ground, cushion and the like.

Description

technical field [0001] The invention relates to a water-retaining thickening material added to building mortar and a method for using the material. Background technique [0002] The general strength level of construction mortar is low. In order to ensure the operability of construction, the common method is to increase the amount of cement or add lime paste, add fly ash, add air-entraining agent, cellulose ether and other chemical admixtures. Cement is a product of high energy consumption. Increasing the amount of cement means increasing shrinkage. Adding lime paste will damage the water resistance of the mortar and affect the performance of the mortar. The effect of adding fly ash on water retention and thickening is not significant enough. Adding chemical admixtures is often accompanied by certain side effects, and the cost of use is also high. Moreover, the mortar used in construction projects is often mixed by the operators themselves on the construction site, and the ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a material for improving the setting time and operability of mortar and its application method. It is necessary to solve the problem of low strength grade of building mortar, poor construction operability, and the added thickening material affects the performance of mortar, the effect is not significant enough, and the side effects are large. , technical problems with high cost

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