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High-temperature anhydrous gypsum pavement brick and kerb and preparation method thereof

An anhydrite and pavement brick technology, applied in the field of road engineering, can solve the problems of reducing curb protection effect, affecting road aesthetics, natural resource consumption, etc., achieving easy industrial flow operation, shortening production cycle time, and increasing production capacity effect of quantity

Inactive Publication Date: 2021-03-26
四川涅钰绿色新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The excessive application of natural stone curbs leads to the consumption of a large amount of natural resources and damages the environment
Therefore, at the end of the last century, concrete curbs and pavement bricks were gradually put into the market. However, due to insufficient consideration of durability in the design of ordinary concrete curbs, after several years of application practice, various degrees of damage have occurred, such as denudation, cracking, etc. Seriously reduces its protective effect on the curb, and also seriously affects the aesthetics of the road

Method used

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  • High-temperature anhydrous gypsum pavement brick and kerb and preparation method thereof
  • High-temperature anhydrous gypsum pavement brick and kerb and preparation method thereof
  • High-temperature anhydrous gypsum pavement brick and kerb and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]A high-temperature hydrated plaster pavement brick, including the following materials: High-temperature water water gypsum 70kg, silicate cement 10kg, silicon powder 5 kg, initiator 0.14 kg, water 25 kg, 0.7 kg of water reduction agent.

[0027]Among them, high-temperature anhydrous gypsum is anhydrous gypsum prepared by high temperature by dihydrate gypsum at high temperature of 600 to 900 ° C; silicate cement is P.O42.5 ordinary silicate cement; Silicon powder contains silicon ≥ 90%; the initiator is 30 to 50% sulfate, 30 to 50% sulfate, 10 to 30% ammonium salts, mixed into a mixture of 80 mesh, mixed by weight of 30 ~ 50% ammonium salide, mixed to 80 megadownload Carboxylic acid reduction agent; fibers are polypropylene fibers; water meets water requirements for concrete mixing.

[0028]Preparation method of the high temperature anhydrous plaster pavement brick:

[0029](1) Pour the high temperature anhydrous gypsum, silicate cement, silica powder, and fibers into the stirring tank,...

Embodiment 2

[0035]A high-temperature water plaster pavement brick, including the following materials: 80kg, fly ash 9kg, silicon powder 7kg, initiator 0.16 kg, water 25 kg, fiber 0.16 kg, dispersant 1.6kg.

[0036]Among them, high-temperature aqueous gypsum is anhydrous gypsum prepared by heating water from water by using a dihydrate gypsum at a calcination temperature of 600 to 900 ° C; fly ash is a grade II fly ash; silicon powder contains silicon 90%; the initiator is a mixture of 30 to 50% sulfate, 30 to 50% sulfate, 10 to 30% ammonium salts by weight, and mixed into a mixture of 80 megadownloadpicies; the dispersant is a commercially available polyvinyl alcohol. The adhesive is a commercially available polyether compound; the fibers are polypropylene; water meets the water requirements for concrete mixing.

[0037]Preparation method of the high temperature anhydrous plaster pavement brick:

[0038](1) Pour high temperature anhydrous gypsum, fly ash, silica powder, fiber into the stirring tank, low ...

Embodiment 3

[0044]A high-temperature water plaster pavement brick, including the following materials: high temperature anhydrous gypsum 60kg, milling steel slag powder 10kg, silicon powder 5kg, initiator 0.2 kg, fiber, 4 kg of fiber, 4 kg.

[0045]Among them, high-temperature water water gypsum is anhydrous gypsum prepared by high temperature by high temperature of dihydrate plaster at a calcination temperature of 600 to 900 ° C; silicon powder contains silicon is ≥90%; grinding steel slag powder is steelmaking Slag grinding steel slag powder; initiator is a mixture of 30 to 50% sulfate, 30 to 50% sulfate, 10 to 30% ammonium salts, mixed by weight of 30 to 50% ammonium sulfate, and mixed into 80 mesh; fiber is polypropylene; viscomela For the market, the polyether compound is used; water meets the concrete mixed water requirements.

[0046]Preparation method of the high temperature anhydrous plaster pavement brick:

[0047](1) Pour high temperature anhydrous gypsum, grinding steel slag powder, silica po...

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Abstract

The invention discloses a high-temperature anhydrous gypsum pavement brick and kerb and a preparation method thereof, belongs to the technical field of road engineering, and aims to break through theshackle that gypsum products cannot be applied in an outdoor humid environment so as to increase the consumption way of industrial byproduct gypsum. Positive protection and absorption promotion effects can be achieved on natural environment protection, natural resource and hazardous waste recycling, civil cost reduction and the like. The high-temperature anhydrous gypsum pavement brick and kerb, provided by the invention, comprise high-temperature anhydrous gypsum, an admixture, an initiator, water, fibers and an additive. The preparation method of the high-temperature anhydrous gypsum pavement brick and kerb comprises the following steps: uniformly stirring the high-temperature gypsum, the admixture and the fibers at a low speed, adding the water, the additive and the initiator solution for high-speed stirring, finally pouring, molding, demolding and laminating for moisturizing maintenance, and finally obtaining the pavement brick and kerb made of the high-temperature anhydrous gypsummaterial with various indexes such as durability, strength, water resistance, wear resistance, softening resistance and the like reaching the national standard.

Description

Technical field[0001]The present invention relates to a high temperature anhydrous plaster pavement brick, a pair of stone stones and a preparation method thereof, belonging to the technical field of road engineering.Background technique[0002]my country has a wealth of plaster mine resources, there is a large number of industrial attached plaster, which provides a wealth of resources for the preparation and production of gypsum. Because the gypsum has a fast coagulation time, good plasticity, light quality, good prevention, renewable utilization, and has a nacular expansion property, so gypsum is used as a traditional building material, which has a very high utilization value. At present, we have achieved extensive applications in building materials, medicine and other industries. Since the semi-water gypsum produced by the traditional process has a large water absorption, the water resistance is poor, the softening coefficient is low, the abrasion resistance, the abrasion resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/16C04B11/036
CPCC04B28/165C04B11/036C04B2201/50C04B7/02C04B18/08C04B18/146C04B18/142C04B22/148C04B22/147C04B22/08C04B22/002C04B16/0633C04B2103/302C04B2103/408C04B24/32
Inventor 王健
Owner 四川涅钰绿色新材料科技有限公司
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