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All-solid-waste high-performance light material as well as preparation method and application thereof

A light-weight material and high-performance technology, applied in the field of building materials, can solve problems such as poor water resistance, easy foaming, and cumbersome steps, and achieve improved water resistance and layering stability, excellent heat insulation performance, and preparation methods. simple effect

Active Publication Date: 2022-03-25
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Calcium carbide slag is the waste residue mainly composed of calcium hydroxide obtained from the hydrolysis of calcium carbide to obtain acetylene, which is easy to pollute the environment and groundwater, and the treatment cost is high
[0005] patent CN110194641A discloses a kind of interface reinforced phosphogypsum lightweight interior wall partition and its preparation method, to solve the existing phosphogypsum lightweight interior wall partition thermal insulation Poor thermal effect and low mechanical properties
However, the above-mentioned products have the defects of single function, high cost and cumbersome processing steps of light aggregates. At the same time, light aggregates cannot be completely evenly distributed in the interior wall partitions, which also affects the stability of light interior wall partitions. Sexuality and Self-Confidence
More importantly, the water resistance of gypsum itself is poor, and this method does not add materials that significantly improve water resistance in the process of using gypsum to prepare interior wall partitions, nor does it improve through the preparation method, resulting in poor water resistance of the product. Poor, not conducive to the multi-functionality of the interior wall partition, if it is in a humid environment for a long time, it is easy to foam, warp, deform, and fall off

Method used

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  • All-solid-waste high-performance light material as well as preparation method and application thereof
  • All-solid-waste high-performance light material as well as preparation method and application thereof
  • All-solid-waste high-performance light material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for preparing all solid waste high-performance lightweight materials, comprising the following steps:

[0039] (1) According to the parts by weight shown in Table 1, take fly ash, slag, carbide slag and water reducer, and mix to obtain a mixture; wherein, 10 parts of fly ash are composed of 5 parts of Class I fly ash and Composed of 5 parts of Class II fly ash.

[0040] (2) Add water to the mixture in step (1) at a water-solid ratio (volume ratio) of 0.5, and wet mill to obtain a slurry. The milling speed of the wet mill is 330 rpm, and the time of the wet mill is 110 min.

[0041] (3) Put EPS particles, dihydrate phosphogypsum whiskers and the slurry prepared in step (2) in a mixer, and stir for 60 seconds to disperse the materials evenly; among them, 0.6 parts of EPS particles have a particle size of 1 to 3mmEPS and 3 ~5mmEPS is composed according to the volume ratio of 0.2:1.

[0042] (4) Add the product of step (3), phosphorus building gypsum and retarder...

Embodiment 2

[0044] A method for preparing all solid waste high-performance lightweight materials, comprising the following steps:

[0045] (1) According to the parts by weight shown in Table 1, take fly ash, slag, carbide slag and water reducer, and mix to obtain a mixture; wherein, 15 parts of fly ash are composed of 5 parts of Class I fly ash and Composed of 10 parts of Class II fly ash.

[0046] (2) Add water to the mixture in step (1) at a water-solid ratio (volume ratio) of 0.6, and wet-grind to obtain a slurry. The grinding speed of the wet-mill is 380 rpm, and the time of the wet-mill is 100 minutes.

[0047] (3) Put EPS particles, dihydrate phosphogypsum whiskers and the slurry prepared in step (2) in a mixer, and stir for 55 seconds to disperse the materials evenly; among them, 0.6 parts of EPS particles have a particle size of 1 to 3mmEPS and 3 ~5mmEPS is composed according to the volume ratio of 0.3:1.

[0048] (4) Add the product of step (3), phosphorus building gypsum and r...

Embodiment 3

[0050] A method for preparing all solid waste high-performance lightweight materials, comprising the following steps:

[0051] (1) According to the parts by weight shown in Table 1, take fly ash, slag, carbide slag and water reducer, and mix to obtain a mixture; wherein, 15 parts of fly ash are composed of 10 parts of class I fly ash and Composed of 5 parts of Class II fly ash.

[0052] (2) Add water to the mixture in step (1) at a water-solid ratio (volume ratio) of 0.7, and wet mill to obtain a slurry. The milling speed of the wet mill is 400 rpm, and the time of the wet mill is 90 minutes.

[0053] (3) Put the EPS particles, dihydrate phosphogypsum whiskers and the slurry prepared in step (2) in a mixer, and stir for 50 seconds to disperse the materials evenly; among them, 0.6 parts of EPS particles have a particle size of 1 to 3mmEPS and 3 ~5mmEPS is composed according to the volume ratio of 0.35:1.

[0054] (4) Add the product of step (3), phosphorus building gypsum and...

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Abstract

The invention provides a preparation method of an all-solid-waste high-performance light material, which comprises the following steps: firstly, mixing fly ash, slag, carbide slag and a water reducing agent according to a certain proportion to obtain a product A; secondly, mixing water with the product A according to a certain proportion, and performing wet grinding treatment to obtain a product B; thirdly, mixing the product B with EPS particles and phosphogypsum dihydrate whiskers to obtain a product C; and finally, uniformly mixing the product C with phosphorus building gypsum and a retarder to prepare slurry, and pouring and molding to obtain the all-solid-waste high-performance light material. The all-solid-waste high-performance light material prepared by the invention has the characteristics of high absolute dry compressive strength and absolute dry density, low heat conductivity coefficient, excellent water resistance and the like, and the interior wall partition plate prepared from the material has excellent heat insulation performance, water resistance and layering stability; the raw material solid waste mixing amount is high, the building cost can be remarkably saved, the preparation method is simple in process, large-scale production is easy, and high economic value is achieved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to an all-solid-waste high-performance lightweight material and a preparation method and application thereof. Background technique [0002] Lightweight interior wall partitions have the advantages of moisture resistance, earthquake resistance and sound insulation, fire protection and heat preservation, small footprint, good strength, convenient construction, and reduced wall costs. In recent years, more and more light-weight interior wall partitions have been used as non-load-bearing interior partition walls in general industrial buildings, residential buildings, and public construction projects. The installation and operation are simple, easy to master, and the market prospect is broad. It is suitable for investment entrepreneurs to develop and develop , is an ideal decorative plate. [0003] Phosphogypsum is an industrial by-product of wet-process preparation of phosphor...

Claims

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Application Information

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IPC IPC(8): C04B28/14E04C2/04C04B18/04C04B18/08C04B18/14C04B20/02C04B16/08C04B14/38C04B111/40
CPCC04B28/143E04C2/044E04C2/049C04B18/08C04B18/141C04B18/0481C04B20/026C04B16/08C04B14/383C04B2111/40C04B2201/50C04B2201/20C04B2201/32C04B2103/302C04B2103/22Y02W30/91
Inventor 金子豪王丽玥王智瑞丁文斌崔程嘉苏英杨启凡张博贺行洋杨进李玉博陈顺王迎斌
Owner HUBEI UNIV OF TECH
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