Concrete containing electrolytic manganese slag, preparation method thereof, and concrete pavement

A technology of electrolytic manganese slag and concrete, which is applied in the field of materials, can solve the problems of increasing the cost of land requisition and site disposal of waste residues piled up by enterprises, affecting groundwater resources, and consuming large land resources, so as to save sand and gravel, good strength, and use long life effect

Active Publication Date: 2018-09-11
TONGREN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to the production statistics of relevant enterprises, for every ton of electrolytic manganese powder produced, the amount of acid leaching waste residue discharged is about 5-6 tons. At present, the annual production capacity of electrolytic manganese in my country has exceeded 1 million tons, and the annual discharge of waste ...

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  • Concrete containing electrolytic manganese slag, preparation method thereof, and concrete pavement

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preparation example Construction

[0027] The present invention also provides a method for preparing the above-mentioned concrete containing electrolytic manganese slag, which includes:

[0028] The electrolytic manganese slag is calcined at 800-1000° C., pulverized and graded, and the raw materials of the above-mentioned electrolytic manganese slag-containing concrete are prepared and mixed.

[0029] In a preferred embodiment of the present invention, calcination is carried out for 4-5 hours, and the material is turned once every 20 minutes. Under the above conditions, the electrolytic manganese slag is fully calcined, and the prepared electrolytic manganese slag calcined material has good quality, good porosity and strength.

[0030] In a preferred embodiment of the present invention, mixing includes:

[0031] First, the calcined material of electrolytic manganese slag is mixed with the dispersant to obtain the first material.

[0032] Under the stirring state, the first material is mixed with cement, silica fume, and...

Embodiment 1

[0038] A concrete containing electrolytic manganese slag is prepared by the following method:

[0039] After preparing the raw materials, the calcined material of electrolytic manganese slag is mixed with the dispersant to obtain the first material.

[0040] Under the stirring state, the first material is mixed with cement, silica fume, and fly ash, and then mixed with the water reducing agent after stirring for 5 minutes to obtain the second material.

[0041] Under stirring, the second material is mixed with water.

[0042] Among them, the raw materials include: 180 parts of graded electrolytic manganese slag calcined material, 14 parts of cement, 8 parts of silica fume, 13 parts of fly ash, 0.6 parts of dispersant, 1 part of water reducing agent and 11 parts of water. The dispersant is sodium dodecylbenzene sulfonate.

[0043] Among them, the graded electrolytic manganese slag calcined material is calcined from the electrolytic manganese slag at 900°C for 4 hours, and the material i...

Embodiment 2

[0046] A concrete containing electrolytic manganese slag is prepared by the following method:

[0047] After preparing the raw materials, the calcined material of electrolytic manganese slag is mixed with the dispersant to obtain the first material.

[0048] Under the stirring state, the first material is mixed with cement, silica fume, and fly ash, and then mixed with the water reducing agent after stirring for 4 minutes to obtain the second material.

[0049] Under stirring, the second material is mixed with water.

[0050] Among them, the raw materials include: 185 parts of graded electrolytic manganese slag calcined material, 17 parts of cement, 8 parts of silica fume, 14 parts of fly ash, 0.7 parts of dispersant, 0.8 parts of water reducing agent and 13 parts of water. The dispersant is sodium dodecylbenzene sulfonate.

[0051] Among them, the graded electrolytic manganese slag calcined material is obtained by calcining the electrolytic manganese slag at 950°C for 4 hours, and tur...

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Abstract

The invention relates to concrete containing electrolytic manganese slag, a preparation method thereof, and a concrete pavement and relates to the field of materials. The concrete is prepared by mixing raw materials including, by weight, 130-200 parts of grading electrolytic manganese slag calcined material; 13-20 parts of cement, 5-10 parts of silica fume, 10-15 parts of fly ash, 0.5-0.8 parts ofa dispersant, 0.7-1 part of a water reducing agent, and 10-15 parts of water; the grading electrolytic manganese slag calcined material is prepared by calcining electrolytic manganese slag at 800-1000 DEG C, and crushing and grading the product. The concrete has good anti-freezing performance and high strength, is suitable for pavement, can effectively save sand and stone, and improves utilization rate of the electrolytic manganese slag. The preparation method is simple, is convenient to carry out and is free of pollution, and can effectively increase performance of the concrete containing electrolytic manganese slag. Meanwhile, by applying the concrete containing electrolytic manganese slag to a concrete pavement, the pavement has good anti-freezing performance and high strength and is long in service life.

Description

Technical field [0001] The invention relates to the field of materials, and in particular to a concrete containing electrolytic manganese slag, a preparation method thereof, and a concrete road surface. Background technique [0002] my country is the world's most important manganese metal producer. The annual manganese output reaches more than 90% of the world's total output. Most of its products are obtained through sulfuric acid compound rhodochrosite (the main active ingredient is MnCO 3 ) Is achieved by electrolysis after obtaining electrolyte manganese sulfate, because MnCO in manganese ore in my country 3 The content is only within 20%, and other mineral components in the ore are discharged in the form of electrolytic manganese slag during the compound reaction process. The concentration of sulfate, ammonia nitrogen, and manganese in electrolytic manganese slag is higher, and the concentration of arsenic, mercury, and selenium is also higher. The appearance of electrolytic ...

Claims

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Application Information

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IPC IPC(8): C04B28/00E01C7/00C04B111/76
CPCC04B28/00C04B2111/76C04B2201/50E01C7/00C04B18/141C04B18/146C04B18/08C04B2103/302C04B2103/408
Inventor 石维吴思展冷森林成昊叶芬
Owner TONGREN UNIV
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