Cement-based dry-mixed mortar

Abstract

The invention relates to cement-based dry-mixed mortar. The cement-based dry-mixed mortar is prepared from, by weight, 250-300 parts of iron mine mining and beneficiation scrap, 15-130 parts of coal ash, 120-260 parts of cement, 420-510 parts of medium sand, 4-7 parts of wood fibers, 5-9 parts of PP fibers, 11-16 parts of gypsum, 4-8 parts of latex powder, 3-7 parts of calcium nitrite and 1-5 parts of perlite. The cement-based dry-mixed mortar is high in tensile strength and adhesion stress, less prone to shrinkage cracking and low in cost, and product cost reduction and waste recycling can berealized by application of a great quantity of industrial wastes.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a cement-based dry-mixed mortar. Background technique [0002] With the improvement of people's living standards, the requirements for building quality are getting higher and higher. Due to the influence of the technical proficiency of the construction personnel and the quality of various raw materials such as cement and sand, the mortar used on the construction site, whether it is masonry mortar, plastering mortar, or ground leveling mortar, often has cracking phenomena in building plastering mortar ( Even if the most traditional clay brick wall is plastered with cement mortar, there will be large-scale cracking), resulting in unstable project quality, insufficient strength, and even poor quality, which has become a common problem in construction quality. Contents of the invention [0003] The object of the present invention is to overcome the disadvantages of t...

AI Technical Summary

Problems solved by technology

Due to the influence of the technical proficiency of the construction personnel and the quality of various raw materials such as cement and sand, the mortar used on the construction site, whether it is masonry mortar, plastering mortar, or ground leveling mortar, often has cracking phenomena in building plastering mortar ( Even if the most traditional clay brick walls are plastered with cement mortar, there will be large-scale cracks), resulting in unstable project quality, insufficient strength, and even poor quality, which has become a common problem in construction quality

Images