Phosphogypsum-based imitated cedar structure building material and preparation method thereof

A building material, phosphogypsum technology, applied in the field of phosphogypsum-based imitation fir structure building materials and its preparation, can solve the problems such as the technical scheme of imitation fir structure, and achieve sustainable development, simple construction process, and compression resistance high intensity effect

Inactive Publication Date: 2015-09-09
GUIZHOU KAILIN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At the same time, there is also the technology of using phosphogypsum to prepare building insulation materials, but there is no technical solution for the imitation of Chinese fir structure in the process of using phosphogypsum to prepare building materials.

Method used

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  • Phosphogypsum-based imitated cedar structure building material and preparation method thereof
  • Phosphogypsum-based imitated cedar structure building material and preparation method thereof
  • Phosphogypsum-based imitated cedar structure building material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Formula: 210kg of phosphogypsum, 190kg of electrolytic yellow phosphorus slag, 10kg of quicklime, 28kg of cooked brown, 20kg of raw brown, 23kg of Heshi stone, 20kg of gasoline, and 21kg of alkyd varnish.

[0041] Preparation:

[0042] Take phosphogypsum and unslaked lime according to the mass ratio of 21:1 and neutralize them for 1min, put them in a mixer and stir for 30s, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 60s to obtain a mixed material, and then dry the mixed material to After the free water is ≤1%, put it into a ball mill for grinding for 40 minutes, until the specific surface area is 275m 2 / kg; the mixed material after ball milling was calcined at 140°C for 3 hours, and then aged for 24 hours; the aged material was put into a vibration molding machine, and formed by vibration according to the required shape; After natural curing of the vibration-molded material for 7 days, autoclave curing is carried out. The...

Embodiment 2

[0044] Formula: 290kg of phosphogypsum, 230kg of electrolytic yellow phosphorus slag, 14kg of quicklime, 28kg of cooked brown, 20kg of raw brown, 23kg of Heshi stone, 20kg of gasoline, and 21kg of alkyd varnish.

[0045] Preparation:

[0046]Take phosphogypsum and unslaked lime according to the mass ratio of 21:1 and neutralize them for 1min, put them in a mixer and stir for 30s, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 60s to obtain a mixed material, and then dry the mixed material to After the free water is ≤1%, put it into a ball mill and grind for 42 minutes until the specific surface area is 275m 2 / kg; the mixed material after ball milling was calcined at a temperature of 142°C for 3 hours, and then aged for 26 hours; the aged material was put into a vibration molding machine, and formed by vibration according to the required shape; After natural curing of vibration-molded materials for 7 days, autoclave curing is carried...

Embodiment 3

[0048] Formula: 230kg of phosphogypsum, 200kg of electrolytic yellow phosphorus slag, 11kg of quicklime, 28kg of cooked brown, 20kg of raw brown, 23kg of Heshi stone, 20kg of gasoline, and 21kg of alkyd varnish.

[0049] Preparation:

[0050] Take phosphogypsum and quicklime according to the mass ratio of 21:1 and neutralize them for 1min, put them in a mixer and stir for 30s, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 60s to obtain a mixed material, and then put the mixed material into Grinding in a ball mill for 47 minutes until the specific surface area is 277m 2 / kg; the mixed material after ball milling was calcined at a temperature of 148°C for 4 hours, and then aged for 32 hours; the aged material was put into a vibration molding machine, and formed by vibration according to the required shape; After natural curing of vibration-molded materials for 9 days, autoclave curing is carried out. The temperature rise rate is 20°C / ...

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Abstract

The invention discloses a phosphogypsum-based imitated cedar structure building material and a preparation method thereof. The phosphogypsum-based imitated cedar structure building material comprises the following raw materials in parts by weight: 210-290 parts of phosphogypsum, 190-230 parts of electrolyzed yellow phosphorus slag and 10-14 parts of quick lime. The preparation method comprises the steps of material preparing, ageing, forming, autoclave curing, phosphogypsum base material preparing, drying, spraying and finished product forming. The phosphogypsum-based imitated cedar structure building material has the characteristics of simple construction process, light weight, good waterproofness and fire resistance, high compressive strength, high bending strength and good weatherability; furthermore, the phosphogypsum-based imitated cedar structure building material as an indoor decorative building material has the excellent decoration effect; besides, a large amount of phosphogypsum is consumed, the exploitation of natural stones is reduced, and very important significance is provided for environmental protection and achievement of sustainable development.

Description

technical field [0001] The invention relates to the field of chemical building materials, in particular to a phosphogypsum-based fir-like structure building material and a preparation method thereof. Background technique [0002] Phosphogypsum is the main industrial by-product when phosphate and compound fertilizer enterprises use phosphate rock and sulfuric acid as raw materials to produce phosphoric acid. The wet-process phosphoric acid production process is to produce extraction slurry by decomposing phosphate rock powder with sulfuric acid, and then filtering to obtain phosphoric acid, which is filtered and washed. Phosphogypsum waste is generated in the process. [0003] With the development of ammonium phosphate industry and high-concentration phosphate compound fertilizer, the discharge of phosphogypsum is increasing year by year. At present, the annual increase of phosphogypsum discharge in the world is 280 million tons, and China is about 50 million tons, accounting...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B41/61B28B11/24
Inventor 杨步雷杨永彬向前勇王伟刘小成胡新菊李泽钢李显权
Owner GUIZHOU KAILIN GRP CO LTD
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