Fly ash polymerization type cementing material, preparation method and application thereof

A technology of cementitious materials and fly ash, which is applied in the field of building materials, can solve the problems of poor weather resistance, easy aging, impact on service life, and injury to construction personnel, and achieve low cost, low production cost, and low cost.

Inactive Publication Date: 2014-03-26
INST OF GEOCHEM CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the stone bonding glue and mesh glue used in the market are basically organic bonding materials. This type of bonding material contains a large amount of organic solvents. During the construction process, it will cause great harm to the construction personnel and cause harm to the environment. Pollution, and poor weather resistance, easy aging, affecting service life
When used for cementing the exterior wall stone of a building, there is a risk of falling off as the service life increases

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The fly ash polymerized cementitious material is prepared according to the following steps:

[0030] a. Weigh 150g of fly ash and place it in a container, add 15g of stabilizer sodium fluorosilicate to the above fly ash, stir fully after adding, make sodium fluorosilicate and fly ash evenly mix, and set aside;

[0031] B, take by weighing 45g of low-alkali sodium silicate, according to the ratio of solid-liquid ratio 0.35g:1mL, add tap water and fully stir in low-alkali sodium silicate, be mixed with low-alkali sodium silicate aqueous solution;

[0032] c. Slowly add the low-alkali sodium silicate aqueous solution obtained in step b to the mixed slag in step a, stir while adding, and adjust the consistency by adding a small amount of tap water according to the situation. In this example, the amount of water added is about 10ml, and the glue is obtained. condensate material.

[0033] Performance testing of cementitious materials:

[0034] The gelled material was tested...

Embodiment 2

[0037] The fly ash polymerized cementitious material is prepared according to the following steps:

[0038] a. Weigh 160g of fly ash and place it in a container, add 15g of stabilizer sodium fluorosilicate to the above fly ash, stir fully after adding, make sodium fluorosilicate and fly ash evenly mix, and set aside;

[0039] B, take by weighing 45g of low-alkali sodium silicate, according to the ratio of solid-liquid ratio 0.4g:1mL, add tap water to low-alkali sodium silicate and fully stir, be mixed with low-alkali sodium silicate aqueous solution;

[0040] c. Slowly add the low-alkali sodium silicate aqueous solution obtained in step b to the mixed slag material in step a, stir while adding, and adjust the consistency by adding a small amount of tap water according to the situation. In this example, the amount of water added is about 14ml, and the glue is obtained. condensate material.

[0041] Performance testing of cementitious materials:

[0042] The gelled material wa...

Embodiment 3

[0045] The fly ash polymerized cementitious material is prepared according to the following steps:

[0046] a. Weigh 170g of fly ash and place it in a container, add 15g of stabilizer sodium fluorosilicate to the above fly ash, stir fully after adding, make sodium fluorosilicate and fly ash evenly mix, and set aside;

[0047] B, take by weighing 45g of low-alkali sodium silicate, according to the ratio of solid-liquid ratio 0.45g:1mL, add tap water to low-alkali sodium silicate and fully stir, be mixed with low-alkali sodium silicate aqueous solution;

[0048] c. Slowly add the low-alkali sodium silicate aqueous solution obtained in step b to the mixed slag material in step a, stir while adding, and adjust the consistency by adding a small amount of tap water according to the situation. In this example, the amount of water added is about 14ml, and the glue is obtained. condensate material.

[0049] Performance testing of cementitious materials:

[0050] The gelled material w...

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Abstract

The present invention discloses a fly ash polymerization type cementing material, which comprises the following raw materials, by weight: 70-90 parts of industrial waste, 1-10 parts of a synergist, 10-25 parts of an activator, and water, wherein the water is added according to a solid-to-liquid ratio of 1.5-2.8 g: 1 ml. According to the present invention, characteristics of simple raw material formula, wide source, low cost and substantial industrial waste consumption are provided, wherein the use amount of the waste material in the product can be 75-85%; the raw materials are not added with cement and other ingredients, cementing property of the obtained product is from the excitation reaction of the technology, and the formula is not added with sodium hydroxide and other alkaline activators, such that the cost is low, and the obtained cementing material has characteristics of short solidification time and high solidification strength; and the use is wide, and the obtained product can be used for adhesion between stones and stones, between stones and ceramics, and between ceramics and ceramics, and can further be used for adhesion of stones or ceramics on the cement-base surface.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a polymeric cementitious material mainly made of fly ash, yellow phosphorus slag, red mud slag, metallurgical slag and other industrial waste residues and a preparation method thereof. Background technique [0002] At present, domestic large-scale power plants and coal enterprises produce a large amount of industrial waste slag every day. The long-term storage of these waste slags not only occupies a large amount of land, but also causes serious pollution and harm to the water system and the atmosphere. The treatment of these waste materials requires a large investment , Improper treatment will pollute the environment again. How to turn these waste residues into treasures through treatment is an urgent problem to be solved. [0003] Fly ash, as one of the largest industrial wastes in China, has the characteristics of large emissions and environmental pollut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24
CPCY02P40/10
Inventor 田佳伟顾汉念王宁田元江李海洋李惠文
Owner INST OF GEOCHEM CHINESE ACADEMY OF SCI
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