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Light high-strength geopolymer material and preparation method thereof

A geopolymer and high-strength technology, applied in the field of geopolymer and its preparation, can solve the problems of uneven settlement of bridges, cracks, large shrinkage, etc. Effect

Active Publication Date: 2021-05-25
SHANGHAI LIYANG ROAD REINFORCEMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Light weight, high strength, and good durability are the development direction of most building materials. Some buildings, road structures, and long-span bridges cause uneven settlement of roadbeds, road surfaces, and bridges due to their weight, which leads to cracks; light weight Geopolymer is a new type of energy-saving and environmentally friendly material. It has the characteristics of light weight, but it has defects such as low strength, poor toughness, poor integrity, and large shrinkage.

Method used

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  • Light high-strength geopolymer material and preparation method thereof
  • Light high-strength geopolymer material and preparation method thereof
  • Light high-strength geopolymer material and preparation method thereof

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preparation example Construction

[0035] The present invention also provides a method for preparing the above-mentioned lightweight and high-strength geopolymer material, comprising the following steps:

[0036](1) 20-60 parts of finely ground coal gangue powder, 5-30 parts of regenerated fine powder, 5-25 parts of superfine metakaolin, 2.5-8 parts of silica fume, 2-15 parts of high-strength gypsum powder, 5-15 parts 1 part of concrete expansion agent, 0.1-2 parts of basalt fiber, 0.1-1.5 part of steel fiber, 0.01-1 part of defoamer, 0.4-1 part of water reducing agent, put them into the mortar mixer, at the speed of 300-500r / min , and stirred for 3-5 minutes until uniform, to obtain a geopolymer dry mix.

[0037] (2) First weigh 1 / 4 of the total mixing water (water temperature is 20-30°C) and add it to a 500ml or 1000ml plastic beaker, then add 0.1-5 parts of carboxylated styrene-butadiene latex and 0.1-2 parts of combined foam Add the agent into the beaker, use a hand-held small mixer, at the speed of 5000-8...

Embodiment 1

[0043] This embodiment provides a light-weight and high-strength geopolymer material, which includes: 41.4 parts of ground coal gangue powder, 5 parts of regenerated ground powder, 20 parts of ultrafine metakaolin, 2.5 parts of silica fume, 5 parts by weight High-strength gypsum powder, 5 parts of concrete expansion agent, 0.2 part of basalt fiber, 0.1 part of steel fiber, 0.1 part of defoamer, 0.5 part of polycarboxylate superplasticizer, 0.1 part of carboxylated styrene-butadiene latex, 0.1 part of combined foaming agent, 15 Part sodium water glass and 5 parts sodium hydroxide etc.

[0044] The present embodiment provides a kind of lightweight high-strength geopolymer material, and its preparation method comprises the following steps:

[0045] (1) 41.4 parts of finely ground coal gangue powder, 5 parts of regenerated fine powder, 20 parts of superfine metakaolin, 2.5 parts of silica fume, 5 parts of high-strength gypsum powder, 5 parts of concrete expansion agent, 0.2 parts ...

Embodiment 2

[0051] This embodiment provides a light-weight and high-strength geopolymer material, which includes: 37.4 parts of ground coal gangue powder, 15 parts of regenerated fine powder, 10 parts of ultrafine metakaolin, 2.5 parts of silica fume, 5 parts by weight High-strength gypsum powder, 7 parts of concrete expansion agent, 0.3 part of basalt fiber, 0.2 part of steel fiber, 0.1 part of defoamer, 0.5 part of polycarboxylate superplasticizer, 1.2 parts of carboxylated styrene-butadiene latex, 0.8 part of combined foaming agent, 15 Part sodium water glass and 5 parts sodium hydroxide etc.

[0052] The present embodiment provides a kind of lightweight high-strength geopolymer material, and its preparation method comprises the following steps:

[0053] (1) 37.4 parts of finely ground coal gangue powder, 15 parts of regenerated fine powder, 10 parts of superfine metakaolin, 2.5 parts of silica fume, 5 parts of high-strength gypsum powder, 7 parts of concrete expansion agent, 0.3 parts...

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Abstract

The invention discloses a light high-strength geopolymer material and a preparation method thereof. The geopolymer material comprises the following components: ground coal gangue powder, regenerated ground powder, superfine metakaolin, silica fume, high-strength gypsum powder, a concrete expansive agent, basalt fibers, steel fibers, water glass, caustic alkali, carboxylic butadiene-styrene latex, a combined foaming agent, a defoaming agent and a water reducing agent. According to the light high-strength geopolymer material provided by the invention, industrial waste residues and old building wastes are effectively utilized; the material has the characteristics of light self weight, high strength, good toughness and the like, has the performances of sound absorption, sound insulation, noise reduction, settlement prevention and the like, and is wide in application range; and the preparation method of the light high-strength geopolymer material provided by the invention is simple in operation steps and does not need high-temperature forming maintenance.

Description

technical field [0001] The invention relates to a geopolymer and a preparation method thereof, in particular to a light-weight and high-strength geopolymer material and a preparation method thereof. Background technique [0002] Coal gangue is one of the solid wastes with the largest discharge in my country. The problems of causing environmental pollution and occupying a large amount of land need to be solved urgently; the demolition of old buildings produces a large amount of waste concrete, bricks, mortar, glass, porcelain blocks and other inorganic non It is in line with the national policy of sustainable development to rationally recycle metal waste. [0003] Light weight, high strength, and good durability are the development direction of most building materials. Some buildings, road structures, and long-span bridges cause uneven settlement of roadbeds, road surfaces, and bridges due to their weight, which leads to cracks; light weight Geopolymer is a new type of energy...

Claims

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Application Information

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IPC IPC(8): C04B38/10C04B28/00C04B111/40C04B111/52
CPCC04B28/006C04B2111/40C04B2111/52C04B2201/20C04B2201/32C04B2201/50C04B18/12C04B18/167C04B14/4643C04B14/48C04B24/26C04B24/14C04B24/16C04B24/38C04B22/143C04B2103/302C04B2103/50C04B2103/0068C04B38/10C04B38/0067Y02P40/10
Inventor 季晓丽郝庆凯李熙
Owner SHANGHAI LIYANG ROAD REINFORCEMENT TECH
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