Method for preparing steam-curing building block through wet-milling waste glass

A waste glass and block technology, applied in the field of building materials, can solve the problems of increasing energy consumption of raw materials, high cost of machinery and equipment, dangerous manual operation, etc. Effect

Active Publication Date: 2017-04-26
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are following problems in making blocks with this method: firstly, the grinding efficiency of dry grinding is low, if the grinding time is too short, it is difficult to achieve superfineness, and the activity of waste glass powder cannot be stimulated; if the grinding time is increased too much, it will not only increase In addition, the agglomeration effect of fine particles of waste glass powder makes the particle size larger and th...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) Weigh 70 parts by weight of waste glass and 10 parts of carbide slag and send them into the crusher to crush until the average particle size is 2mm;

[0037] 2) Send the crushed material crushed in step 1) into a wet ball mill, add water according to the ratio of water to material weight ratio of 0.5, and then add 0.5 parts by weight of polymeric polyol grinding aid for ball milling for 2 hours, and ball mill the crushed material to The average diameter of the particles is 0.1 μm to obtain a slurry;

[0038] 3) Put the slurry obtained in step 2) into a mixer, add 4 parts by weight of cement, 20 parts of fly ash, 2 parts of anhydrous sodium sulfate, 0.5 parts of aluminum powder and 0.5 parts of polyacrylamide, stir and form, and then carry out Steam curing to obtain blocks.

[0039] During the steaming process, first stand at 45-50°C for 3-5 hours; between 45°C and 70°C, heat up ≯5-6°C per hour, and the heating rate between 70°C and 100°C is not limited, and the heat...

Embodiment 2

[0041] Embodiment 2, with embodiment 1, the difference is,

[0042] 1) Weigh 50 parts by weight of waste glass and 20 parts of carbide slag and send them into the crusher to crush until the average particle size is 10mm;

[0043] 2) Send the crushed material crushed in step 1) into a wet ball mill, add water according to the ratio of water to material weight ratio of 0.5, and then add 0.5 parts by weight of polymeric polyol grinding aid for ball milling for 2 hours, and ball mill the crushed material to The average diameter of the particles is 1 μm, and the slurry is obtained;

[0044] 3) Put the slurry obtained in step 2) in a mixer, add 4 parts by weight of cement, 30 parts of fly ash, 2 parts of water glass, 0.6 parts of aluminum powder and 0.8 parts of polyacrylamide, stir and form, and then steam Conservation gets blocks.

[0045] The block prepared by this embodiment is generally 1.6-2.5 cubic meters per working day in terms of the physical labor productivity of the dire...

Embodiment 3

[0046] Embodiment 3, with embodiment 1, the difference is,

[0047] 1) Take 55 parts by weight of waste glass and 17 parts of carbide slag and send them into the crusher to crush until the average particle is 15mm;

[0048] 2) Send the crushed material crushed in step 1) into a wet ball mill, add water according to the ratio of water to material weight ratio of 0.55, and then add 0.5 parts by weight of triethanolamine grinding aid for ball milling for 2 hours, and ball mill the crushed material into particles After the average diameter is 2 μm, the slurry is obtained;

[0049] 3) Put the slurry obtained in step 2) into a mixer, add 4 parts by weight of cement, 28 parts of fly ash, 2 parts of anhydrous sodium sulfate, 0.5 parts of aluminum powder and 1 part of polyvinyl alcohol, stir and form, and then carry out Steam curing to obtain blocks.

[0050] The block prepared by this embodiment is generally 1.6-2.5 cubic meters per working day in terms of the physical labor product...

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PUM

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Abstract

The invention relates to a method for preparing a steam-curing building block through wet-milling waste glass. The method comprises the following steps of feeding 50 to 70 parts by weight of waste glass and 10 to 20 parts by weight of acetylene sludge into a crushing machine for crushing, then feeding into a wet type ball mill, adding water according to the proportion of 0.4 to 0.6 of weight ratio of water to material, and then adding 0.5 part of grinding aid for ball milling to obtain a slurry; and placing the slurry in a stirring machine, adding 4 to 6 parts of cement, 20 to 30 parts of coal ash, 2 to 5 parts of excitant and 1 to 2 parts of admixture for stirring and forming, carrying out four stages of standing, warming, keeping constant temperature and cooling, and obtaining the building block through steam curing. According to the method for preparing the steam-curing building block through the wet-milling waste glass provided by the invention, waste glass powder is refined through a wet-milling process, and the pozzolanic activity of the waste glass powder is fully played, so that the building block can be prepared by adopting a non-steam process, the energy consumption is low, the production cost is low, and the maintenance period can be shortened; the coal ash and the acetylene sludge are added, so that the prepared building block has excellent performances; and a large number of wastes are utilized, so that the solid waste utilization rate is improved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a method for preparing steam-cured blocks with wet-milled waste glass. Background technique [0002] Due to the large amount of waste glass, the recycling and utilization of waste glass has become an urgent environmental problem to be solved all over the world. Since the hardness modulus of glass is similar to that of natural sandstone, and the density between the two is also close, it is possible to use waste glass to replace the increasingly depleted natural sandstone. In addition, glass itself contains a large amount of silica and is amorphous and non-crystalline, which also makes it possible to be an auxiliary cementitious material for concrete. Therefore, the rational development and utilization of waste glass and its application in engineering can not only relieve the pressure of waste glass treatment and the exhaustion of sand and gravel resources c...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/02C04B20/02C04B14/22
CPCC04B20/026C04B28/04C04B14/22C04B18/0481C04B18/08C04B22/147C04B22/04C04B24/2652C04B38/02C04B40/024C04B22/08C04B24/2623C04B24/122C04B24/32
Inventor 贺行洋王庭苇代飞孙艺恒兰蒙叶青郑正旗卢敏邱慧琼苏英王迎斌苏骏
Owner HUBEI UNIV OF TECH
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