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Glass fiber reinforced gypsum capable of being used for 3D printing

A glass fiber and 3D printing technology, applied in the field of building materials, can solve the problems of large land occupation, large investment, environmental pollution, etc., and achieve the effects of wide application, broad application prospects, high economic benefits and environmental benefits

Inactive Publication Date: 2016-07-06
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The annual discharge of phosphogypsum in my country has exceeded 50 million tons, accounting for more than 70% of industrial by-product gypsum. Except for a small part of which is used for the production of cement, chemical raw materials, gypsum building materials and roadbed materials, most of them are used as waste directly discharged into the environment, which not only occupies a large area and requires a large investment, but also causes a lot of pollution to the environment.

Method used

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  • Glass fiber reinforced gypsum capable of being used for 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1, a glass fiber reinforced gypsum that can be used for 3D printing, according to phosphogypsum 100, S95 slag powder 50, 42.5 grade ordinary portland cement 2.5, glass fiber 1.0, polycarboxylate water reducer 0.30, early The strength agent is formulated at a weight ratio of 1.0. The amount of water added is 50% of the weight of the material of the present invention. The performance test results of the prepared glass fiber reinforced gypsum are shown in Table 1. The gypsum building material products produced by using the glass fiber reinforced gypsum have good tensile properties, compression resistance and integrity.

Embodiment 2

[0035] Example 2, a glass fiber reinforced gypsum that can be used for 3D printing, according to phosphogypsum 100, S105 slag powder 100, ordinary Portland cement 52.5 grade 10, glass fiber 1.9, polycarboxylate water reducing agent 0.35, early The strength agent is formulated at a weight ratio of 1.5. The amount of water added is 40% by weight of the material of the present invention. The performance test results of the prepared glass fiber reinforced gypsum are shown in Table 1. The gypsum building material products produced by using the glass fiber reinforced gypsum have good tensile properties, compression resistance and integrity.

Embodiment 3

[0036] Example 3, a glass fiber reinforced gypsum that can be used for 3D printing, according to phosphogypsum 100, S105 slag powder 140, 52.5 grade ordinary Portland cement 40, glass fiber 3.0, polycarboxylate water reducer 0.50, early The strength agent is formulated at a weight ratio of 2.0. The amount of water added is 20% of the material weight of the present invention. The performance test results of the prepared glass fiber reinforced gypsum are shown in Table 1. The gypsum building material products produced by using the glass fiber reinforced gypsum have good tensile properties, compression resistance and integrity.

[0037] Table 1 embodiment performance test result

[0038]

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PUM

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Abstract

The invention belongs to the technical field of building materials, and particularly relates to glass fiber reinforced gypsum capable of being used for 3D printing. The glass fiber reinforced gypsum is prepared from phosphorus gypsum, slag powder, cement, glass fibers, a water-reducing agent and an early strength agent. The glass fiber reinforced gypsum with high viscoplasticity, low shrinkage rate, small hydration heat and good working performance can be obtained and directly used for 3D printing to produce a gypsum building material product. By using the glass fiber reinforced gypsum provided by the invention, the problem of resource utilization of the phosphorus gypsum can be effectively solved, and the purposes of high consumption amount of the phosphorus gypsum, low energy consumption and efficient resource utilization of the phosphorus gypsum are realized.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a glass fiber reinforced gypsum which can be used for 3D printing. Background technique [0002] 3D printing is an emerging material processing technology that is quite different from traditional manufacturing technologies such as subtractive manufacturing and isomaterial manufacturing. Based on the three-dimensional data of the model, it is a technology to generate entities by extruding materials through the printer nozzle and printing layer by layer. Therefore, it is also called additive manufacturing. At present, 3D printing, as an "important production tool of the third industrial revolution", is becoming a trend of rapid development and is widely used in various research fields, such as biomedicine, aerospace, mold manufacturing and automobile manufacturing. In recent years, the application of 3D printing in the field of construction is also expanding...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B14/42B33Y70/00
CPCC04B28/143B33Y70/00C04B2201/50C04B7/14C04B7/02C04B14/44C04B24/24C04B2103/0068
Inventor 孙振平郭二飞曾文波刘毅冀言亮杨旭
Owner TONGJI UNIV
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