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Composite admixture for cement or high-performance concrete and preparation method thereof

A technology of high-performance concrete and composite admixtures, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., to achieve the effects of optimized performance, optimized particle gradation, and low cost

Inactive Publication Date: 2011-09-14
葫芦岛市辽西混凝土外加剂有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it only uses silicon-manganese slag micropowder without modification

Method used

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  • Composite admixture for cement or high-performance concrete and preparation method thereof
  • Composite admixture for cement or high-performance concrete and preparation method thereof
  • Composite admixture for cement or high-performance concrete and preparation method thereof

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Embodiment Construction

[0046] The present invention will be further described below by way of examples.

[0047] Table 1 Admixture ingredients for cement (A)

[0048]

[0049] Table 2 Ingredients of admixtures used in high performance concrete (B)

[0050]

[0051] The composition of the grinding aids in Table 1 and Table 2 is shown in Attached Table 1.

[0052] Attached Table 1 Ingredients of Grinding Aids (Mass Percent%)

[0053]

[0054] The samples in Table 1 and Table 2 were tested with reference to the S95 grade slag powder in GB / T 18046-2008 Granulated Blast Furnace Slag Powder Used in Cement and Concrete, and the results are shown in Table 3.

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Abstract

A composite admixture for cement or high-performance concrete and a preparation method thereof. The admixture comprises silicon manganese slag, slag, limestone, furnace slag or fly ash, and grinding aids, and the mass ratios are: 50-70 of silicon-manganese slag, 10-20 of slag, 8-15 of limestone, 10-15 of furnace slag or fly ash, and 0.5 or 2 of grinding aids. The preparation method comprises: adding the raw materials according to the ratios into a ball mill, grinding till the grinding fineness meets that the Blaine specific surface area is not less than 400 m2 / kg or 450 m2 / kg so as to obtain the silicon manganese slag-based composite admixture for cement or high-performance concrete. The preparation of the admixture can use a large amount of industrial waste residues - silicon manganese slag discharged from the production of silicomanganese alloy, and the admixture is prepared with a proper amount of slag, limestone, furnace slag or fly ash, and a small amount of grinding aids, which has remarkable economic effect, and outstanding social benefits and environmental benefits.

Description

technical field [0001] The invention belongs to the production technology of cement and high-performance concrete, and in particular relates to a silico-manganese slag-based admixture for cement or high-performance concrete and a preparation method thereof. Background technique [0002] Regarding the use of silicomanganese slag in cement, there is a small amount of individual components added to the grinding head, such as an article in the fifth issue of "China Cement" in 2003 "Production of Ordinary Portland Water Cement with Silicomanganese Slag". , the article claims to use silicomanganese slag to produce clinker, not as admixture. In addition, in the "China Cement Technology Network" there is an article "Development of Fly Ash Less Clinker Composite Cement", the author is Ren Sumei and others. It introduces the preparation of high-volume fly ash-less clinker composite Portland cement, which is made from ordinary fly ash, silico-manganese slag and a small amount of gypsu...

Claims

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Application Information

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IPC IPC(8): C04B18/14
CPCY02W30/91
Inventor 詹学彬张殿元李平何海泉詹乐张超张金龙戴连文何志勇毕建光宝金瑞鞠秉秀
Owner 葫芦岛市辽西混凝土外加剂有限公司
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