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A kind of manganese slag composite gel and preparation method thereof

A technology of composite gel and manganese slag, applied in the field of composite gel

Pending Publication Date: 2016-11-02
铜仁市恒睿生产力促进中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology has not been reported in China

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Embodiment 1: the preparation of composite admixture gets manganese slag, under the condition of 75 ℃ or natural air-drying to water content15m 2 / g (measured by nitrogen adsorption BET method), then the manganese slag after grinding is heated up to 450 °C at 40 °C / h, and kept for 1h to cool with the furnace, and finally press 82wt% manganese slag, 18%Ca (OH ) 2 (Slaked lime is required to pass 180 mesh) and mix well to obtain slag cement admixture.

Embodiment 2

[0008] Embodiment 2: the preparation of composite admixture gets manganese slag, under 85 ℃ of conditions or natural air-drying to water content15m 2 / g (measured by nitrogen adsorption BET method), then the manganese slag after the grinding is warmed up to 400°C with 50°C / h, and kept warm for 1.5h with furnace cooling, finally by 80wt% manganese slag, 9wt% Ca ( Oh) 2 , 11% clinker (both slaked lime and clinker are required to pass 180 mesh) and mix well to obtain slag cement admixture.

Embodiment 3

[0009] Embodiment 3: the preparation of composite admixture gets manganese slag, under 95 ℃ of conditions or natural air-dried moisture content15m 2 / g (measured by nitrogen adsorption BET method), then the manganese slag after grinding is heated up to 350°C with 60°C / h, and kept warm for 2h to cool with the furnace, finally by 78wt% manganese slag, 22% clinker ( The clinker is required to pass 180 mesh) and mixed evenly to obtain the slag cement admixture.

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Abstract

A manganese slag composite gel and a preparation method thereof, the raw materials include 18-38wt% composite admixture, 50-62wt% slag powder, and 0-30% clinker; the composite admixture includes 78-82wt% modified Electrolytic manganese slag, 0-18wt%Ca (OH) 2 and 0-22% clinker; Described manganese slag is obtained by the following method: dry pretreatment electrolytic manganese slag to water content<10%, will be dried The pretreated manganese ore slag is ground to a specific surface area>15m2 / g, and the specific surface area is measured by the nitrogen adsorption BET method. Furnace cooling is obtained. The invention relates to a clinker-free or less-clinker green gel that can utilize industrial solid waste (mainly manganese slag and slag) in a large amount, that is, a manganese slag composite gel and a preparation method thereof.

Description

technical field [0001] The invention belongs to the technical field of resource utilization of industrial solid waste, and specifically relates to a method of firstly activating and modifying the washing filter residue (hereinafter referred to as "manganese slag") in the production process of electrolytic manganese to make a composite admixture, and then mixing it into Composite gel prepared from slag and clinker. Background technique [0002] With the continuous development of the national economy and science and technology, urban and rural construction and real estate development have grown rapidly, and the production and application of various building materials have increased significantly. Among them, Portland cement is the most widely used and used gel. my country's annual cement output has exceeded 900 million tons, clinker output has exceeded 600 million tons, and the annual emission of carbon dioxide is 630 million tons, sulfur dioxide is 660,000 tons, nitrogen oxid...

Claims

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Application Information

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IPC IPC(8): C04B7/14C04B7/36
Inventor 龚泽
Owner 铜仁市恒睿生产力促进中心有限公司
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