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Preparing method of cement products

A technology for cement products and reinforcing agents, applied in the field of cement products, can solve the problems of long molding time, shortened setting time, poor quality of cement products, etc., and achieve the effects of strong penetration and flow ability, improved toughness, and enhanced strength.

Active Publication Date: 2017-09-15
伊春北方水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing cement products, which can shorten the setting time of cement products, and the final cement obtained The surface of the product is smooth, without blisters, and has high strength

Method used

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  • Preparing method of cement products
  • Preparing method of cement products

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of preparation method of cement product, comprises the following steps:

[0022] (1) Put the raw materials of cement products and water into the mixer according to the mass ratio of 1:1.8, mix and stir evenly, and then pour the mixture into the mold;

[0023] (2) Put the un-demolded cement product into the curing room for a curing. During the curing process, keep the pressure in the curing room at 0.3MPa, the temperature at 60°C, and the humidity at 70%. The time for the curing is 2 hours , Spray the reinforcing agent on the cement products during a curing process, and use microwaves to accelerate the coagulation of the cement products throughout the process, and demould after the first curing;

[0024] (3) Spray reinforcing agent again on the cement products after demoulding, and then carry out secondary curing. During the secondary curing, the pressure in the curing room is maintained at normal pressure, the temperature is 35°C, and the humidity is 40%. The ti...

Embodiment 2

[0030] A kind of preparation method of cement product, comprises the following steps:

[0031] (1) Put the raw materials of cement products and water into the mixer according to the mass ratio of 1:2, mix and stir evenly, and then pour the mixture into the mold;

[0032](2) Put the cement product without demoulding into the curing room for a curing, keep the pressure of the curing room at 0.4MPa, the temperature at 70°C, and the humidity at 75% during the curing process, and the curing time is 3 hours , Spray the reinforcing agent on the cement products during a curing process, and use microwaves to accelerate the coagulation of the cement products throughout the process, and demould after the first curing;

[0033] (3) Spray reinforcing agent again on the cement product after demolding, and then carry out secondary curing. During the secondary curing, the pressure in the curing room is maintained at normal pressure, the temperature is 40°C, and the humidity is 45%. The time ...

Embodiment 3

[0039] A kind of preparation method of cement product, comprises the following steps:

[0040] (1) Put the raw materials of cement products and water into the mixer according to the mass ratio of 1:2.3, mix and stir evenly, and then pour the mixture into the mold;

[0041] (2) Put the un-demolded cement product into the curing room for a curing. During the curing process, keep the pressure of the curing room at 0.5MPa, the temperature at 80°C, and the humidity at 80%. The time for the curing is 4 hours , Spray the reinforcing agent on the cement products during a curing process, and use microwaves to accelerate the coagulation of the cement products throughout the process, and demould after the first curing;

[0042] (3) Spray reinforcing agent again on the cement product after the demoulding, then carry out secondary curing, keep the pressure of curing room to be normal pressure in the secondary curing process, temperature is 45 ℃, humidity is 50%, the time of secondary curin...

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Abstract

The invention relates to the technical field of cement products, in particular to a preparing method of the cement products. The method comprises the steps of firstly, stirring casting, secondly, primary maintenance, thirdly, secondary maintenance, fourthly, natural molding and fifthly high-temperature calcination; in the primary maintenance stage, microwave radiationcrowave radiation is used for promoting solidification, in the primary maintenance stage and the secondary maintenance stage, a reinforcing agent is sprayed, and pores in the interiors and the surfaces of the cement products can be filled with the agent; through the method, the solidification time of the cement products can be shortened, the obtained cement products have high strength and do not lose roughness, no pores exists, the surfaces are flat and free of sand holes, the whole quality is good, practicability is good, and the method can be suitable for being applied in the field.

Description

【Technical field】 [0001] The invention relates to the technical field of cement products, in particular to a preparation method of cement products. 【Background technique】 [0002] As one of the main products of building gel materials, cement plays an irreplaceable role in construction. Cement products mainly made of cement are also widely used in various infrastructure constructions. Most of today's cement products are mixed with cement, sand, gravel, lime, etc. The amount of water used and the curing during the solidification and forming stage. The main problem in the process of natural solidification molding is that the solidification time is too long. After solidification and molding, there are blisters on the surface of the cement product or pores in the interior, resulting in low overall strength of the cement product after molding. The surface is rough and easy to wear. Cement products are prone to brittle cracks or even disconnection under overload conditions. The p...

Claims

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Application Information

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IPC IPC(8): B28B11/24C04B24/26C04B20/02
CPCB28B11/24C04B20/023C04B40/0039C04B14/104C04B14/047C04B14/108C04B14/28C04B24/02C04B22/147C04B14/08C04B22/126C04B24/2623C04B22/10C04B12/04C04B22/04C04B22/085C04B22/062
Inventor 陆志斌
Owner 伊春北方水泥有限公司
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