Composite mortar

Abstract

The invention relates to the technical field of building materials, and especially relates to a composite mortar. The composite mortar contains 5-25 parts of an aqueous inorganic silicate solution with the solid content of 30%, 5-25 parts of an aqueous styrene-acrylate or pure acrylic emulsion with the solid content of 45-47%, 0.1-2 parts of an organosilicon modified acrylic emulsion with the solid content of 45-47%, and 0.5 parts of triisopropanolamine. The composite mortar needs no onsite water addition, no stirring, or no addition of a curing agent, can be directly constructed on a wall, and is directly waterborne, so the transportation risks comprising rain, deliquescence and the like are thoroughly avoided; and a plurality of film forming substances adopted in the invention have a very good compatibility, and the composite mortar prepared through adopting the plurality of film forming substances can be disposed for a long term and is not influenced by a construction period.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a composite mortar. Background technique [0002] In today's society, the development direction of the coatings industry is water-based energy-saving and environmental protection, solvent-free and low-VOC, high performance and specialization of special functions. Coating researchers from all over the world are sparing no effort to develop and optimize coatings in these directions. With the in-depth development of modern organic synthesis technology, organic coatings using organic polymers as film-forming substances have made great progress. However, with the increasing depletion of world energy, the source of raw materials for organic polymers is threatened. The increasing attention to environmental protection and organic coatings have functional defects such as poor anti-ultraviolet aging resistance, weak adhesion to the substrate, poor initial water resistance and...

AI Technical Summary

Problems solved by technology

This product has the characteristics of low VOC, easy to obtain materials, convenient production, good adhesion, etc., but this product has the following disadvantages: 1. During construction, water must be added on site and stirred evenly before it can be applied to the wall. Due to the different water quality on site , Difficult to control the amount of water added, uneven electric stirring by workers and other factors affect the film performance of the product, especially when the color material is prepared, the color of the product is difficult to stir evenly, and it is prone to blooming, color layering of the same batch of products, etc.; 2. Silicate The activity period of cement is relatively short, which leads to a short storage time of the product, which is easily affected by the construction period, and the economy is not high; 3. Due to the color limitation of cement, the decorative effect of the product is general, and it is difficult to prepare realistic imitation natural stones and other bright colors 4. Since calcium hydroxide will appear in the hydration process of Portland white cement, this kind of product will have different degrees of efflorescence, which cannot be completely eliminated; 5. Dry powder products are susceptible to rain and humidity Environmental threats, high requirements for transportation and storage

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