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Active compound activator of phosphorous slag powder and using method thereof

A composite excitation, phosphorus slag powder technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc. Condensation, improving the late structure, the effect of dense structure

Inactive Publication Date: 2014-02-05
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of phosphorus slag powder active composite activator that can effectively stimulate the activity of phosphorus slag powder, solve the problems such as retardation of concrete and mortar, low early strength and slow strength development caused by the incorporation of phosphorus slag powder and its use method

Method used

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  • Active compound activator of phosphorous slag powder and using method thereof
  • Active compound activator of phosphorous slag powder and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]Example 1, an active composite activator of phosphorus slag powder, according to the quality of 100 carbide slag, 20 desulfurized gypsum, 20 sodium silicate (chemical reagent), 20 aluminum sulfate (chemical reagent), and 20 sodium hydroxide (chemical reagent) The ratio is matched. According to the dosage of phosphorus slag powder is 30% of the mass of cement, and the dosage of composite activator is 4% of the mass of phosphorus slag powder, the proportion of the prepared mortar is shown in Table 1, and the test results of mortar performance are shown in Table 2.

Embodiment 2

[0035] Example 2, an active compound activator of phosphorus slag powder, according to the quality of 100 calcium carbide slag, 60 desulfurized gypsum, 40 sodium silicate (chemical raw material), 40 aluminum sulfate (chemical raw material), and 35 sodium hydroxide (chemical raw material) The ratio is matched. According to the dosage of phosphorus slag powder is 30% of the mass of cement, and the dosage of composite activator is 8% of the mass of phosphorus slag powder, the proportion of the prepared mortar is shown in Table 1, and the test results of mortar performance are shown in Table 2.

Embodiment 3

[0036] Example 3, an active composite activator of phosphorus slag powder, according to the quality of 100 carbide slag, 80 desulfurized gypsum, 60 sodium silicate (chemical reagent), 60 aluminum sulfate (chemical reagent), and 60 sodium hydroxide (chemical raw material) The ratio is matched. According to the dosage of phosphorus slag powder is 30% of the mass of cement, and the dosage of composite activator is 12% of the mass of phosphorus slag powder, the proportion of the prepared mortar is shown in Table 1, and the test results of mortar performance are shown in Table 2.

[0037]

[0038] Table 1 Example Test Proportion

[0039]

[0040] Table 2 Example performance test results

[0041]

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Abstract

The invention belongs to the technical field of a building material, and particularly relates to an active compound activator of phosphorous slag powder and a using method thereof. The active compound activator is compounded of industrial waste carbide slag, desulfurized gypsum, and chemical reagents (or industrial materials) sodium silicate, aluminum sulfate and sodium hydroxide. A plurality of activation compound effects of alkali-activation, basic salt-activation, sulfate activation and the like are mainly utilized to completely activate the activity of the phosphorous slag powder. By adopting the product disclosed by the invention, the activity of the phosphorous slag powder can be effectively activated; the problems of delayed coagulation, low early strength, slow strength development and the like existing when the phosphorous slag powder is used as concrete or mortar admixture are obviously relieved. By adopting the active compound activator, application of the phosphorous slag powder as the admixture in the industries such as cement and concrete can be facilitated, waste materials are changed into precious materials; the economic benefits are improved; meanwhile, the problems of environmental pollution, soil waste and the like caused by stocking of a lot of phosphorous slag also can be solved; the environmental benefits are improved. In addition, the problem of shortage of excellent admixtures such as coal ash, slag powder and the like in the industries such as cement and concrete also can be relieved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a phosphorus slag powder active composite activator. Background technique [0002] With the continuous development and growth of my country's yellow phosphorus industry, a large amount of phosphorus slag is discharged during the process of refining yellow phosphorus. The preparation of yellow phosphorus by electric furnace method uses phosphate rock as raw material, coke as phosphorus reducing agent, and silica as phosphorus slagging agent. When refining yellow phosphorus, SiO in the slagging agent 2 The melting point decreases, and at (1350-1400) °C, it combines with calcium in phosphate rock to form molten slag with calcium silicate as the main component. After high-pressure water quenching, it forms granular phosphorus slag. For every 1t of yellow phosphorus produced in industry, about (8-10)t of phosphorus slag is produced. In 2012 (January-December)...

Claims

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Application Information

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IPC IPC(8): C04B22/14C04B18/04
CPCY02W30/91
Inventor 孙振平陈明杨旭
Owner TONGJI UNIV
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