Baking-free lightweight insulating brick and preparation method thereof

A light-weight technology for insulating bricks, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of limited product application range, large capacity of insulating bricks, poor economic benefits, etc., and achieve obvious economic benefits And popularize the effect of using value, good thermal insulation performance and low cost

Inactive Publication Date: 2017-11-28
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two unburned bricks have problems such as large volume and poor thermal insulation performance, and it is difficult to use them as the main masonry material in the main structure of the building, which obviously limits the application range of the product and has poor economic be

Method used

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  • Baking-free lightweight insulating brick and preparation method thereof
  • Baking-free lightweight insulating brick and preparation method thereof
  • Baking-free lightweight insulating brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A non-fired lightweight insulating brick, which comprises 65% of mineral wool waste (including 35% of slag balls and 30% of slag wool fibers), 15% of slag portland cement, and 14% of powder Coal ash, 6% water. The mineral wool waste is crushed, the average fiber length is 14mm, and the particle size of the slag ball is 3mm. The cement is grade 32.5 slag portland cement. The fly ash raw material is subjected to impurity removal process, and the particle size is 100 μm.

[0025] The preparation method of the thermal insulation brick includes batching, stirring, billet making, and maintenance procedures, specifically including: 1) batching, preparing slag wool waste, cement, fly ash, and water in proportion; 2) stirring, first putting the slag wool waste and cement , fly ash, and then add water in proportion to stir for 14 minutes to obtain a mixture; 3) blank making, the mixture is vibrated to obtain a brick;

[0026] In the natural maintenance process, water is drawn ...

Embodiment 2

[0030] A non-fired lightweight insulating brick, which comprises 55% mineral wool waste (including 32% slag balls, 23% slag wool fibers), 15.5% slag Portland cement, 20% pulverized coal Ash, 9.5% water. The mineral wool waste is crushed, the average fiber length is 12 mm, and the particle size of the slag ball is 2.8 mm. The cement is grade 32.5 slag portland cement. The fly ash raw material has a particle size of 80 μm after an impurity removal process.

[0031] The preparation method of the thermal insulation brick includes batching, stirring, billet making, and maintenance procedures, specifically including: 1) batching, preparing slag wool waste, cement, fly ash, and water in proportion; 2) stirring, first putting the slag wool waste and Cement, fly ash, and then add water in proportion and stir for 15 minutes to obtain a mixture; 3) Blank making, the mixture is vibrated to obtain adobe; 4) Curing, the adobe is cured at room temperature to obtain an unfired lightweight t...

Embodiment 3

[0036] A non-fired lightweight insulating brick, which includes 59% mineral wool waste (including 34% slag balls, 25% rock wool fibers), 16.2% slag Portland cement, and 15% pulverized coal Ash, 9.8% water. The rock wool waste is crushed, the average fiber length is 11.5 mm, and the particle size of the slag ball is 2.6 mm. The cement is grade 32.5 slag portland cement. The fly ash raw material has been subjected to impurity removal process, and the particle size is 75 μm.

[0037] The preparation method of the thermal insulation brick includes batching, stirring, billet making, and maintenance procedures, specifically including: 1) batching, preparing rock wool waste, cement, fly ash, and water in proportion; 2) stirring, first putting rock wool waste and cement , fly ash, and then add water according to the proportion and stir for 18 minutes to obtain the mixture; 3) blank making, the mixture is vibrated to obtain adobe;

[0038] In the natural maintenance process, the fin...

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Abstract

The invention discloses a baking-free lightweight insulating brick and a preparation method thereof. The insulating brick comprises the following components in percentage by mass: 30-70% of mineral wool wastes, 10-35% of cement, 0-22% of fly ash and 5-10% of water. The preparation method comprises the following steps: burdening, namely preparing the mineral wool wastes, cement, fly ash and water according to a ratio; stirring, adding the mineral wool wastes, cement, fly ash, adding water according to a ratio for stirring 10-20 minutes so as to obtain a mixture; making a blank, vibrating and forming the mixture so as to obtain a brick blank; and curing, namely curing the brick blank at a normal temperature, thereby obtaining the baking-free lightweight insulating brick. According to the preparation method disclosed by the invention, the mineral wool production wastes and short fibers can be made into the baking-free brick, and the baking-free brick is small in investment, simple in process, low in volume-weight, good in thermal insulation properties, high in sound absorption and low in production cost.

Description

technical field [0001] The invention relates to a building material and a preparation method thereof, in particular to a non-burning light-weight insulating brick prepared by using mineral wool slag balls and a preparation method thereof. Background technique [0002] Molten blast furnace slag is one of the main by-products of blast furnaces and a major component of steel mill waste. Usually, each ton of molten blast furnace slag contains (126~188)×10 4 The sensible heat of kJ is equivalent to the energy of 30-40kg heavy oil, and it has a relatively high temperature, about 1450-1600°C, which is a high-quality waste heat resource and has a high recycling value. Recovery of this part of sensible heat will reduce production costs for enterprises and create economic benefits. [0003] At present, most blast furnace slags at home and abroad are mainly water-quenched. Although a small amount of heat can be recovered in the form of waste water, most of the energy cannot be recove...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B14/46C04B18/08
CPCC04B28/04C04B2201/30C04B14/46C04B18/08C04B20/0076Y02W30/91
Inventor 马光宇王向锋徐鹏飞刘常鹏王忠润李卫东张天赋孙守斌
Owner ANGANG STEEL CO LTD
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