Method for producing coal ash foam concrete block and coal ash foam concrete block produced by same

Abstract

The invention relates to a method for producing coal ash foam concrete blocks and a coal ash foam concrete block produced by the method. The method comprises the following steps of: putting 20-50parts of coal ash, 10-20 parts of sand, 20-50 parts of perlite, 5-30 parts of cement and 10-60 parts of water in a mixer and stirring to obtain mixed material; taking 1-5 parts of MNC-FP or SDS as a foaming agent, adding water according to the ratio of 1:30-50 and stirring till foams are fine, smooth and even to obtain foaming agent diluent; adding the foaming agent diluent into the mixed material inthe mixer, loading foaming mixed material into a mould, delivering the mould into a molding machine for molding to obtain a coal as foam concrete block stock; and curing to obtain the coal ash foam concrete block. In the invention, coal ash is used as main material to manufacture wall bricks, thereby protecting environment and saving energy; the sand and the perlite are added to enhance the strength, the foaming agent is added to enable the bricks to be more slight, the cost is low compared with similar products, so the coal ash foam concrete block is an ideal wall building material.

Description

technical field [0001] The invention relates to a production method of a fly ash foam brick and a fly ash foam brick produced by the method. Background technique [0002] At present, the wall masonry materials widely used in construction projects are mainly bricks, such as: clay fired bricks, porous bricks, hollow bricks, autoclaved lime sand bricks, fly bricks, and then autoclaved aerated concrete blocks and Ceramsite bricks, etc. In recent years, some new lightweight vitrified ceramic hollow blocks, fly ash bricks, foam concrete core insulation blocks, sulfur-fixed ash concrete hollow blocks, sandwich injection holes Wall masonry materials such as thermal insulation coal gangue sintered blocks, and some lightweight partition wall slats, such as: mainly cement series, magnesium oxychloride and gypsum series. With the improvement of people's quality of life, the requirements for environmental quality are becoming more and more urgent, and the production methods and various ...

AI Technical Summary

Problems solved by technology

With the improvement of people's quality of life, the requirements for environmental quality are becoming more and more urgent, and the production methods and various products that are unfavorable to the environment are gradually being replaced or eliminated, and the requirements for energy saving and environmental protection of building wall materials are also increasing. The higher, the requirements for masonry wall bricks are environmental protection and energy saving, light weight, and high compressive strength. Existing wall masonry fly ash bricks, such as: Chinese publication number: CN1210057 disclosed A production process of high-strength fly ash brick and a kind of fly ash brick disclosed in CN1686907, mortar and its production method, a production method of fly ash brick disclosed in CN1693257 and a kind of pulverized coal disclosed in CN1850467 The manufacture method of gray brick, its shortcoming is that the product that obtains all can not satisfy the requirement of light weight, and a kind of utilization fly ash disclosed by CN1145886 is made the brick of burning-free and steam-free as raw material, block and the large-volume autoclaved pressure disclosed by CN1644555. The manufacturing method of fly ash brick, its shortcoming is that product strength is not enough, can not satisfy the demand of load-bearing wall, the fly ash brick disclosed by CN1664263 and its manufacturing process, its shortcoming is needing to pass through sintering, and process is complicated, in a word there is no Wall masonry bricks with simple production process, energy saving and environmental protection, light weight and high strength, and low production cost