High-performance base mortar

Abstract

The invention aims at providing a low-cost multipurpose base mortar which comprises the following ingredients in proportions: 15-50 percent of cement, 50-85 percent of sand, 1-20 percent of inorganic composite material, 0.05-10 percent of organic composite material and 0.1-5 percent of fibrous material. The invention generates a super-composition effect by utilizing a multi-compositing design thinking and adding a plurality of inorganic and organic functional materials and enables that the mortar performance is greatly prompted, different types of prepared mortars satisfy the rigorous requirement for the mortar performance from various corresponding novel materials, the cost is not increased remarkably, and factory-produced dry-mixed mortar can be used in engineering construction actually.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a high-performance basic mortar used for building construction through composite modification of organic and inorganic materials. Background technique [0002] Common building mortars widely used are divided into masonry, plastering and ground mortars according to their uses. Traditional solid brick wall materials mostly use cement-based mortar, but with the popularization and application of new lightweight wall materials, such as aerated concrete blocks, slag blocks, lime sand bricks, ceramsite bricks, etc., due to the The properties have changed. The thermal conductivity and linear shrinkage of ordinary mortar and these new wall materials are quite different. However, the construction mortar itself prepared by the construction site has large shrinkage and low bond strength due to low measurement accuracy and poor quality stability. Low, low tensile strength, small ultimate el...

AI Technical Summary

Problems solved by technology

Traditional solid brick wall materials mostly use cement-based mortar, but with the popularization and application of new lightweight wall materials, such as aerated concrete blocks, slag blocks, lime sand bricks, ceramsite bricks, etc., due to the The properties have changed. The thermal conductivity and linear shrinkage of ordinary mortar and these new wall materials are quite different. However, the construction mortar itself prepared by the construction site has large shrinkage and low bond strength due to low measurement accuracy and poor quality stability. Low, low tensile strength, small ultimate elongation, significant brittleness, the mixture does not have enough time to form tensile strength to resist the capillary shrinkage stress due to rapid evaporation under the conditions of sunshine, wind, etc., so the difference causes The stress generated by the thermal expansion and contraction of the new wall material causes large-scale cracking and peeling off of the wall plaster layer of the new wall material after one or two years, which seriously affects the project quality and normal use, and also seriously restricts the application of the new wall material. Popularization and application, but also cause waste of materials and pollution of the construction environment

With the rapid development of the country's urbanization process, the continuous improvement of modern building technology requirements and the urgent need for green environmental protection, traditional mortar has not adapted to the requirements of social development, nor can it meet the needs of diversified mortar varieties.

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