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A large amount of fly ash composite self-insulating block and its preparation method

A self-insulating block and fly ash technology, applied in the direction of sustainable waste treatment, solid waste management, climate change adaptation, etc., can solve the problems of thermal insulation, heat insulation, energy saving, durability, ecological environment and natural environment Problems such as landscape damage and high block damage rate are achieved, which is beneficial to environmental protection, has obvious energy-saving effects, and reduces project cost

Inactive Publication Date: 2015-10-21
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the long-term stacking of fly ash, it not only occupies and destroys a large area of ​​land, but also causes serious damage to the ecological environment and natural landscape.
The use of fly ash to produce building wall materials is an effective way and has been widely used. However, the current fly ash wall materials are mainly autoclaved aerated concrete blocks, and the amount of fly ash is generally At about 60%, the production process consumes a lot of energy and has certain pollution to the environment. At the same time, the block products produced and applied to the wall are insufficient in thermal insulation, heat insulation, energy saving, and durability.
Some fly ash porous thermal insulation blocks currently used are provided with multiple through holes on the block. Due to the excessive number of holes and rows, the production process is complicated, and the block damage rate is high during processing, handling and construction.

Method used

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  • A large amount of fly ash composite self-insulating block and its preparation method
  • A large amount of fly ash composite self-insulating block and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Such as figure 1 figure 2 As shown, the large-volume fly ash composite self-insulating block of the present invention includes a rectangular block body 2 with eight through holes 1 formed by extrusion, and the through holes are arranged in three rows up and down, parallel and staggered. Wherein the first row and the third row are the same, all are three rectangular longitudinal through holes, the second row is two rectangular longitudinal through holes plus two longitudinal semi-open through holes, and each row of holes has a hole wall interval. The left and right sides of the rectangular block body 2 are symmetrically opened with semi-open through-holes 3 , and thermal insulation materials 4 are filled in the semi-open through-holes 3 and the plurality of through-holes 1 .

[0013] The preparation method of the large-volume fly ash composite self-insulating block of the present invention: firstly, fly ash, Portland cement, and fly ash ceramsite are crushed in a rolle...

Embodiment 2

[0015] Such as figure 1 figure 2 As shown, while extruding a rectangular block body with eight through holes, semi-open through holes are symmetrically extruded on its left and right sides. The cross section of the through holes is rectangular. The first row and the third row are the same, all are three rectangular longitudinal through holes, the second row is two rectangular longitudinal through holes plus two longitudinal semi-open through holes, and each row of holes has a hole wall interval. The semi-open through hole and multiple through holes are filled with insulation material mixed with rice husk, Portland cement and 901 glue according to the mass percentage, compacted, leveled, and prepared after natural curing.

[0016] Preparation method of large-volume fly ash composite self-insulating block: by mass percentage, the fly ash is 43.4%, Portland cement is 16.9%, fly ash ceramsite is 33.9%, and water is 5.8% . Filling material preparation method: In terms of mass p...

Embodiment 3

[0018] Such as figure 1 figure 2 As shown, while extruding a rectangular block body with eight through holes, semi-open through holes are symmetrically extruded on its left and right sides. The cross section of the through holes is rectangular. Wherein the first row and the third row are the same, all are three rectangular longitudinal through holes, the second row is two rectangular longitudinal through holes plus two longitudinal semi-open through holes, and each row of holes has a hole wall interval. The semi-open through hole and multiple through holes are filled with insulation material mixed with rice husk, Portland cement and 901 glue according to the mass percentage, compacted, leveled, and prepared after natural curing. The cycle of natural conservation is about 28 days. Care should be taken to keep the blocks moist during maintenance, especially in dry and hot climates, to prevent cracks on the surface of the blocks.

[0019] Preparation method of large-volume fl...

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Abstract

The invention discloses a large-dosage coal ash composite self-insulation building block and a preparation method thereof. The building block comprises a rectangular building block body on which multiple through holes are formed through extrusion, wherein semi-open through holes are symmetrically formed on two sides of the rectangular building block body; a thermal insulation material mixed by rice hull, silicate cement and 901 glue according to mass percentage is filled in the semi-open through holes and the multiple through holes; and the thermal insulation material is compacted, flattened, naturally cured to prepare the building block. The coal ash, coal ash ceramsite, rice hull, other industrial and agricultural wastes and light materials serve as main components, and a self-insulation function can be realized. The building block has the volume density of 676-704kg / m<3>, so that the capacity of the building block is greatly reduced, and the building deadweight and construction cost are reduced. The comprehensive dosage of the coal ash is more than 70 percent, the resources are fully utilized, and waste materials are changed into valuable materials. The building block are few in holes and rows and easy to form, and the damage rate in the processing, transport and construction process is low.

Description

technical field [0001] The invention relates to a self-insulating block and a preparation method thereof, in particular to a large-volume fly ash composite self-insulation block suitable for building walls such as houses and a preparation method thereof. Background technique [0002] Fly ash is one of the largest industrial wastes in my country, and the current comprehensive utilization rate is still low, about 30%. Due to the long-term stacking of fly ash, it not only occupies and destroys a large area of ​​land, but also causes serious damage to the ecological environment and natural landscape. The use of fly ash to produce building wall materials is an effective way and has been widely used. However, the current fly ash wall materials are mainly autoclaved aerated concrete blocks, and the amount of fly ash is generally At about 60%, the production process consumes a lot of energy and causes some pollution to the environment. At the same time, the block products produced ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C1/41C04B28/04C04B18/08
CPCY02W30/92Y02A30/244Y02W30/91
Inventor 吕恒林黄建恩冯伟闫加贺
Owner CHINA UNIV OF MINING & TECH
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