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Preparation method of non-burnt environment-friendly water permeable brick

A kind of permeable brick, environmental protection technology, applied in the field of preparation of fire-free environment-friendly permeable brick, can solve the problems of low bonding strength, unsatisfactory mechanical properties, etc., and achieve the effect of improving water permeability

Inactive Publication Date: 2017-09-22
常州蓝森环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a method for preparing non-burning environment-friendly permeable bricks, aiming at the defects of unsatisfactory mechanical properties due to the low bonding strength of the common non-burning permeable bricks.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026] According to the mass ratio of 1:1:10, mix the basalt ore, grape skin and water and let it soak for 10 days. After the soaking, take out the basalt ore, immediately spray and freeze it with liquid nitrogen for 10 minutes, and put the crushed stone after the freezing treatment. Grind in the machine for 20 minutes, then transfer to a ball mill and continue grinding for 20 minutes, then screen out the basalt particles with a particle size of 1mm; mix the basalt particles and the dopamine solution with a mass concentration of 2g / L at a mass ratio of 1:8 and put them into ultrasonic oscillation In the instrument, under the conditions of frequency 30kHz and power 200W, the ultrasonic vibration treatment was performed for 1h, and the filter residue was obtained by filtration and separation; the filter residue, sodium silicate and water were mixed according to the mass ratio of 1:3:10 to obtain a mixed solution, and the concentration was Adjust the pH of the mixture to 5.0 with ...

example 2

[0028]According to the mass ratio of 1:1:10, mix the basalt ore, grape skin and water and let it soak for 13 days. After the soaking, take out the basalt ore and immediately spray and freeze it with liquid nitrogen for 13 minutes. After the freezing treatment, put the gravel Grind in the machine for 25 minutes, then transfer to a ball mill and continue grinding for 25 minutes, then screen out the basalt particles with a particle size of 1mm; mix the basalt particles and dopamine solution with a mass concentration of 2g / L at a mass ratio of 1:8 and put them into ultrasonic oscillation In the instrument, under the conditions of frequency 35kHz and power 250W, ultrasonic vibration treatment was performed for 1h, and the filter residue was obtained by filtration and separation; the filter residue, sodium silicate and water were mixed according to the mass ratio of 1:3:10 to obtain a mixed solution, and the concentration was 0.5mol / L hydrochloric acid to adjust the pH of the mixed s...

example 3

[0030] According to the mass ratio of 1:1:10, mix the basalt ore, grape skin and water and let it soak for 15 days. After soaking, take out the basalt ore and immediately spray and freeze it with liquid nitrogen for 15 minutes. After the freezing treatment, put the crushed stone Grind in the machine for 30 minutes, then transfer to the ball mill and continue grinding for 30 minutes, then screen out the basalt particles with a particle size of 2mm; mix the basalt particles and the dopamine solution with a mass concentration of 2g / L at a mass ratio of 1:8 and put them into ultrasonic oscillation In the instrument, under the conditions of frequency 40kHz and power 300W, ultrasonic vibration treatment was performed for 2 hours, and the filter residue was obtained by filtration and separation; the filter residue, sodium silicate and water were mixed according to the mass ratio of 1:3:10 to obtain a mixed solution, and the concentration was 0.5mol / L hydrochloric acid to adjust the pH...

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Abstract

The invention relates to the technical field of preparation of building materials, in particular to a preparation method of a non-burnt environment-friendly water permeable brick. According to the preparation method, firstly, the porosity of basalt is modified and increased, and the pore diameter of the basalt is further broadened by utilizing an ice splitting function, so that the basalt has more abundant pore channels so as to be provided for water molecules to pass through, and the water permeation rate of a brick body can be increased by using the basalt as a raw material of the non-burnt environment-friendly water permeable brick; then, silicon hydroxyl groups are added on the particle surface of the basalt, high-bond energy chemical bonding can be generated by utilizing the silicon hydroxyl groups on the surface of the basalt and silicon hydroxyl groups in silicate cement, and the internal bonding strength of the non-burnt environment-friendly water permeable brick is increased, so that the problem that the mechanical performance of a common non-burnt water permeable brick is not ideal is solved; in addition, with the enhancement of the internal bonding strength, required compression molding pressure is reduced while the same molding effect is achieved, so that the porosity of the non-burnt environment-friendly water permeable brick is increased, the water permeability of the non-burnt environment-friendly water permeable brick is further increased, and a wide application prospect is obtained.

Description

technical field [0001] The invention relates to the technical field of building material preparation, in particular to a method for preparing a fire-free environment-friendly permeable brick. Background technique [0002] With the acceleration of urbanization, the urban surface is gradually being covered by water-repelling materials such as buildings and various concretes, and the proportion of impermeable areas has increased significantly, and the coverage rate in some areas has exceeded 80%. As the drainage capacity of cities is getting worse and worse, when many cities encounter heavy rains, the rainwater on the roads cannot seep quickly, which can easily cause urban waterlogging. Therefore, in order to solve the problem of urban surface hardening, create a high-quality natural living environment, and maintain urban ecological balance, a new green and environmentally friendly building material product-permeable bricks emerged as the times require and have developed rapidl...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B111/40
CPCC04B28/04C04B2111/00017C04B2111/00284C04B2111/0075C04B2111/40C04B2201/50C04B14/14C04B18/248C04B24/122C04B22/00C04B18/0436C04B38/08
Inventor 石磊林茂兰
Owner 常州蓝森环保设备有限公司
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