Preparation method for warm-keeping mortar

Abstract

A preparation method for warm-keeping mortar is disclosed. The mortar is characterized by comprising, in parts by weight, 500-1000 parts of cement, 0-200 parts of mineral powder, 0-150 parts of fly ash, 0-100 parts of talcum powder, 0-100 parts of heavy calcium powder, 0-50 parts of silica fume, 0-100 parts of an expanding agent, 0-1 part of an early strength agent, 0-2 parts of PP fiber, 0-2 parts of wood fiber, 0-30 parts of latex powder, 0.5-8 parts of cellulose ether, 0-3 parts of a water repellent, 0.001-0.2 part of an air entraining agent, 1-4 parts of a water reducer, 0-2 parts of starch ether, 0-2 parts of a retarder, 2-500 parts of a lightweight particle, and 400-1000 parts of water. The warm-keeping mortar possesses good fluidity and fluidity maintenance property, good wrapping property, good durability and high strength. The product can be produced as dry-mixed mortar, also can be produced as wet-mixed mortar in a wet-mixed mortar production line or a concrete stirring station, is used by being transported to a building site by utilizing a tank car, and accords with the current-stage environment protection requirements of saving energy and reducing emission and preventing dust. The mortar is good in plasticity, is applicable to exterior-wall warm insulation, indoor baffle walls, roofs and the like, and is wide in application scope and low in cost.

Description

technical field [0001] The invention relates to a preparation method of large fluidity thermal insulation mortar, which belongs to the field of building material design. Background technique [0002] With the global energy crisis, countries all over the world have increasing requirements for environmental protection and energy conservation. In 1979, at the symposium on the promotion of development by science and technology held by the United Nations in Vienna, energy issues, population issues, food issues, and environmental issues were listed as the four major issues facing mankind. At the same time, countries around the world have also successively proposed to control the amount of mineral energy, develop new energy and utilize renewable energy, and improve energy efficiency, so that the environment can be protected and energy can be effectively used. [0003] As a high-energy-consuming industry, construction has attracted much attention, and it has become a basic trend in...

AI Technical Summary

Problems solved by technology

[0004] Wall insulation is divided into three types: external wall insulation, internal wall insulation, and wall self-insulation. Internal wall insulation is difficult to construct and occupies the indoor usable area, so it is rarely used now; external wall insulation usually uses thermal insulation mortar, Insulation boards, thermal insulation and decorative integrated boards, etc., the thermal insulation performance is limited by the thickness of the insulation layer, it is impossible to be too high; the self-insulation of the wall is not very mature at this stage, and the use of self-insulation blocks between the blocks There will be cold bridges and hot bridges, and the plasticity from prefabricated blocks to masonry walls is poor; the use is very limited at this stage, but its thermal insulation performance is good, and it is easier to meet the energy saving requirement of 65%.

Therefore, preparing a wall self-insulation material with high fluidity and pourability can overcome the shortcomings of the existing self-insulation system, such as slow construction, cold and heat bridges, and poor plasticity, and has high engineering application value