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A kind of preparation method of lightweight porous marble composite brick

A marble and composite brick technology, which is applied in the field of preparation of lightweight porous marble composite bricks, can solve problems such as poor mechanical properties of marble bricks, and achieve the effects of improving mechanical properties, ensuring porosity, and increasing strength

Active Publication Date: 2020-12-08
泰州峰飞机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: Aiming at the problem of poor mechanical properties of traditional marble bricks, a preparation method of lightweight porous marble composite bricks is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0019] Pour the marble into a pulverizer, pass through a 800-mesh round-hole sieve after crushing, and obtain refined marble powder, and then mix the refined marble powder and absolute ethanol at a mass ratio of 1:10, and then transfer it to an ultrasonic disperser. Under the condition of ultrasonic frequency of 55kHz, ultrasonically disperse for 60min. After the dispersion is completed, add polyvinylpyrrolidone with 20% absolute ethanol mass, and stir and mix at a constant temperature for 36h at a temperature of 55°C and a rotational speed of 500r / min. , to get the marble dispersion; in parts by weight, take 30 parts of tetraethyl orthosilicate solution, 8 parts of boric acid, 0.8 part of nano-iron powder, 6 parts of sodium fluoride, and 100 parts of marble dispersion. Add it into a four-necked flask, and move the four-necked flask into a digital display speed measuring constant temperature magnetic stirrer, set the stirring speed at 600r / min, and the temperature at 60°C, and ...

example 2

[0021]Pour the marble into a pulverizer, pass through a 800-mesh round-hole sieve after crushing, and obtain refined marble powder, and then mix the refined marble powder and absolute ethanol at a mass ratio of 1:10, and then transfer it to an ultrasonic disperser. Under the condition of ultrasonic frequency of 55kHz, ultrasonic dispersion was carried out for 60 minutes to obtain marble dispersion; in parts by weight, 30 parts of tetraethyl orthosilicate solution, 8 parts of boric acid, 0.8 parts of nano-iron powder, 6 parts of sodium fluoride, and 100 parts of For the marble dispersion, first add the marble dispersion into the four-necked flask, and then move the four-necked flask into the digital display speed measurement and constant temperature magnetic stirrer, set the stirring speed to 600r / min, and the temperature to 60°C, and then in the state of constant temperature stirring , add tetra-necked ethyl silicate solution dropwise to the four-necked flask through the droppi...

example 3

[0023] Pour the marble into a pulverizer, pass through a 800-mesh round-hole sieve after crushing, and obtain refined marble powder, and then mix the refined marble powder and absolute ethanol at a mass ratio of 1:10, and then transfer it to an ultrasonic disperser. Under the condition of ultrasonic frequency of 55kHz, ultrasonically disperse for 60min. After the dispersion is completed, add polyvinylpyrrolidone with 20% absolute ethanol mass, and stir and mix at a constant temperature for 36h at a temperature of 55°C and a rotational speed of 500r / min. , to get the marble dispersion; in parts by weight, get 8 parts of boric acid successively, 0.8 part of nanometer iron powder, 6 parts of sodium fluoride, 100 parts of marble dispersion, add the marble dispersion in the four-necked flask earlier, and four Move the four-necked flask into a magnetic stirrer with digital display speed measurement and constant temperature, set the stirring speed to 600r / min, and set the temperature ...

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Abstract

The invention discloses a preparation method of a lightweight porous marble composite brick, and belongs to the technical field of building materials. The preparation method comprises the following steps: firstly, crushing marble, sieving and then dispersing into absolute ethyl alcohol; secondly, adding polyvinylpyrrolidone to obtain marble dispersion liquid and then dropwise adding a tetraethylortho silicate solution into the marble dispersion liquid; adjusting a pH value to be alkaline; carrying out thermostatic mixing reaction, then adding boronic acid, nano-iron powder and sodium fluorideto obtain modified marble dispersion liquid; thirdly, carrying out heating and stirring reaction on acrylamide, N,N'-methylene-bisacrylamide, an initiator and the modified marble dispersion liquid andfiltering to obtain a filter cake wet material; fourthly, carrying out injection molding on the filter cake wet material and then carrying out compression moulding; drying, demolding and carrying outfiring molding, thus obtaining the lightweight porous marble composite brick. The lightweight porous marble composite brick obtained by the preparation method disclosed by the invention has excellentmechanical properties.

Description

technical field [0001] The invention discloses a preparation method of a lightweight porous marble composite brick, which belongs to the technical field of building materials. Background technique [0002] With the continuous improvement of people's living standards nowadays, the quality requirements of clothing, food, housing, transportation and entertainment in daily life are getting higher and higher, and the practicality is getting better and better. In terms of housing, In addition to requiring comfortable living, environmental protection of building materials is generally taken into consideration when decorating. [0003] Now the marble on the market is generally mined directly from the mine, after a simple polishing process, it is directly sold on the market, the marble material needs hundreds of years of evolution to form, the material is seriously wasted, and the marble is relatively heavy, which will increase the cost of construction. The weight of the body affect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/06C04B38/00C04B35/057C04B35/634C04B35/80
CPCC04B35/057C04B35/63404C04B35/63444C04B35/80C04B38/0025C04B38/067C04B2235/3409C04B2235/405C04B2235/445
Inventor 刘凡领许玉张烨
Owner 泰州峰飞机械设备有限公司
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