Industrial solid waste polymer anti-seepage and anti-freezing material and preparation method thereof

An industrial solid waste and polymer technology, applied in the field of polymer concrete, can solve problems such as surface spalling, building material damage, unsafe incidents, etc., and achieve the effects of reducing the formation of connected pores, improving compactness, and good fluidity

Inactive Publication Date: 2022-05-24
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the improvement of people's living standards, the durability requirements for building materials in severe cold areas have been further increased. After long-term low-temperature freeze-thaw cycle damage, traditional building materials have surface peeling, cracking or even fracture, which seriously affects building functions and people's property safety.
[0003] Therefore, improving the frost resistance of building materials used in severe cold regions is the key to ensuring the durability of materials. There are two main methods for improving the frost resistance of building materials used in severe cold regions in the prior art. One is to control the water-cement ratio of building materials. The smaller the water-cement ratio of building materials, the better the frost resistance of building materials, but the building materials with small water-cement ratios will release a large amount of hydration heat during hydration, which will cause damage to building materials and even lead to unsafe conditions. events; the other is to add air-entraining agents to building materials to improve the impermeability and frost resistance of building materials by reducing the porosity of building materials
[0004] However, because most of the building materials in the prior art are concrete, and the prior art consumes a lot of energy when preparing concrete, and the prepared concrete is prone to produce harmful pores and multiple harmful pores, resulting in poor permeability of concrete and poor material density. Although the above method can alleviate the damage caused by long-term low-temperature freeze-thaw cycles of building materials, it still cannot really solve the damage caused by long-term low-temperature freeze-thaw cycles of building materials used in severe cold regions.

Method used

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  • Industrial solid waste polymer anti-seepage and anti-freezing material and preparation method thereof
  • Industrial solid waste polymer anti-seepage and anti-freezing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides an industrial solid waste polymer impermeability and antifreeze material, and the industrial solid waste polymer impermeability and antifreeze material of this embodiment is prepared by the following steps:

[0035] Step 1, recycle industrial solid waste, remove impurities, and obtain fly ash and coal gangue respectively;

[0036] Grind the fly ash and coal gangue respectively to particles with a particle size of 0.1 mm, then, according to weight parts, take 85 parts of fly ash and 15 parts of coal gangue and send them to the mixer to mix evenly, and stir at a speed of 100r / min for 5min Then, add 0.4 parts of defoamer and 2.5 parts of granite rock powder, stir at 100r / min for 5min and mix well, then add 15 parts of alkaline activator, stir at 130r / min for 30min and mix well to form amorphous Aluminosilicate gel; then add 0.4 parts of water repellent and mix evenly to obtain the impermeable and antifreeze concrete material of industrial solid was...

Embodiment 2

[0045] This embodiment provides an industrial solid waste polymer impermeability and antifreeze material, and the difference between the preparation method of the industrial solid waste polymer impermeability and antifreeze material in this embodiment and Embodiment 1 is only:

[0046] In this embodiment, the weight parts of fly ash is 70 parts.

Embodiment 3

[0048] This embodiment provides an industrial solid waste polymer impermeability and antifreeze material, and the industrial solid waste polymer impermeability and antifreeze material of this embodiment is prepared by the following steps:

[0049] Step 1, recycle industrial solid waste, remove impurities, and obtain fly ash and coal gangue respectively;

[0050] Grind the fly ash and coal gangue to particles with a particle size of 0.15mm respectively, then, according to weight parts, take 60 parts of fly ash and 30 parts of coal gangue and send them to the mixer to mix evenly, and stir at a speed of 150r / min for 2min Then, add 0.2 parts of defoamer and 1.5 parts of granite rock powder, stir at 150r / min for 2min and mix well, then add 20 parts of alkaline activator, stir at 150r / min for 30min and mix well to form amorphous Aluminosilicate gel; then add 0.2 part of water repellent and mix evenly to obtain the impermeable and antifreeze concrete material of industrial solid waste ...

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Abstract

The invention belongs to the technical field of polymer concrete, and discloses an industrial solid waste polymer impervious anti-freezing material and a preparation method thereof, the industrial solid waste polymer impervious anti-freezing material comprises the following components by weight: 80-120 parts of a cementing material, 20-30 parts of a cementing material, 1.5-3.5 parts of granite powder, 0.2-0.6 part of an antifoaming agent, and 0.2-0.6 part of a water repellent; wherein the cementing material comprises fly ash and coal gangue, and the mass ratio of the fly ash to the coal gangue is (2-6): 1. By doping the defoaming agent, the water repellent and the granite stone powder, the volume ratio of harmful pores and multiple harmful pores in the material is reduced, the compactness and pore roughness of the material are increased, and frost heaving force generated after water permeation, migration and freezing is reduced, so that the anti-permeability and anti-freezing performance of the material are greatly improved.

Description

technical field [0001] The invention relates to the technical field of polymer concrete, in particular to an industrial solid waste polymer anti-seepage and anti-freezing material and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, the durability requirements for building materials in severe cold areas have been further improved. After long-term low-temperature freeze-thaw cycles, traditional building materials have surface peeling, cracking or even breaking, which seriously affects building functions and people's property safety. [0003] Therefore, improving the frost resistance of building materials used in severe cold areas is the key to ensuring the durability of materials. There are two main methods for improving the frost resistance of building materials used in severe cold areas in the prior art. One is by controlling the water-cement ratio of building materials. , the smaller the water-cement ratio of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B111/20C04B111/27
CPCC04B28/006C04B2111/29C04B2111/27C04B18/12C04B18/08C04B12/04C04B14/048C04B2103/50C04B2103/65Y02W30/91
Inventor 王家庆李强李国芬黄新罗小娟
Owner NANJING FORESTRY UNIV
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