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High-flowability high-strength super-retarded steel tube concrete additive and preparation method thereof

A steel tube concrete, high fluidity technology, applied in the field of building materials, can solve the problems of complex concrete systems, etc., to achieve the effect of delaying the setting time, enhancing the compactness, and delaying the setting time

Active Publication Date: 2013-06-12
广东武理湾区科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the common use of composite admixtures and expansion agents in concrete systems is more complicated, and due to the interference between various additives and the influence of adaptability problems with other materials in the system, it still exists in the actual application process. question

Method used

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  • High-flowability high-strength super-retarded steel tube concrete additive and preparation method thereof
  • High-flowability high-strength super-retarded steel tube concrete additive and preparation method thereof
  • High-flowability high-strength super-retarded steel tube concrete additive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high -current high -strength high -strength super -slow concrete concrete concrete additive, which is obtained by grinding 30 minutes in the ball mill 30 minutes in the elevation of the alpine and composite modifiers.The modifiers described are amino silane, epoxyl silane, and methyl silicon oil. The percentage is 90%, 5%, and 5%mixed preparation in order.Among them, SiO in the Gaoling Land 2 With AL 2 O 3 The quality of the quality percentage of quality is greater than equal to 50WT%, and the surface area is greater than equal to 2300M 2 / kg; the amino silicane is colorless to light yellow transparent liquid with the content of ≥95.0%and density of 1.010 ± 0.005g / ml.

[0028] The preparation method of the above high -liquidity, high -strength super -slow concrete concrete concrete additive, including the following steps:

[0029] (1) According to the quality percentage of 90%, 5%, and 5%in order, amino silane, epoxyl silane and organic silicon oil are mixed evenly to obt...

Embodiment 2

[0032] A high -current high -strength high -strength super -slow concrete concrete concrete additive, which is obtained by grinding 75 minutes in the ball mill in a high albate and a composite modified agent.The modifiers described are amino silane, epoxyl silane, and methyl silicon oil. The percentage is 90%, 5%, and 5%mixed preparation in order.Among them, the SIO in the Kaolidians is 2 With AL 2 O 3The quality of the quality percentage of quality is greater than equal to 50WT%, and the surface area is greater than equal to 2300M 2 / kg; the amino silicane is colorless to light yellow transparent liquid with the content of ≥95.0%and density of 1.010 ± 0.005g / ml.

[0033] The preparation method of the above high -liquidity, high -strength super -slow concrete concrete concrete additive, including the following steps:

[0034] (1) According to the quality percentage of 90%, 5%, and 5%in order, amino silane, epoxyl silane and organic silicon oil are mixed evenly to obtain a composit...

Embodiment 3

[0037] A high -current high -strength high -strength super -slow concrete concrete concrete additive, which is obtained by grinding 120 minutes in the ball mill with a composite alpine and composite modifiers.The modifiers described are amino silane, epoxyl silane, and methyl silicon oil. The percentage is 90%, 5%, and 5%mixed preparation in order.Among them, SiO in the Gaoling Land 2 With AL 2 O 3 The quality of the quality percentage of quality is greater than equal to 50WT%, and the surface area is greater than equal to 2300M 2 / kg; the amino silicane is colorless to light yellow transparent liquid with the content of ≥95.0%and density of 1.010 ± 0.005g / ml.

[0038] The preparation method of the above high -liquidity, high -strength super -slow concrete concrete concrete additive, including the following steps:

[0039] (1) According to the quality percentage of 90%, 5%, and 5%in order, amino silane, epoxyl silane and organic silicon oil are mixed evenly to obtain a composite m...

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Abstract

The invention belongs to the technical field of construction materials, and particularly relates to a high-flowability high-strength super-retarded steel tube concrete additive. The additive is prepared by mixing metakaolin and composite modifier, wherein the mass ratio of the metakaolin to the composite modifier is (50-20):1; the composite modifier is prepared by mixing the following components in percentage by mass: 70-90% of amino silane, 5-15% of epoxy silane and 5-15% of methyl silicon oil, and the sum of the mass percents of the components is 100%. The additive serving as a steel tube concrete admixture can improve the working performance of steel tube concrete and retard the setting time, can obviously enhance the strength of the steel tube concrete at each stage (especially early strength) and simultaneously can effectively improve the volume stability of the steel tube concrete.

Description

Technical field [0001] The present invention is a construction material technology field, which involves a high -current high -strength high -strength super -slow concrete concrete concrete additive and its preparation methods. Background technique [0002] In recent years, with the strong development of the country's construction of transportation infrastructure, my country Highway Construction Network has developed rapidly.During this period, due to the existence of a large number of mountains, rivers, canyons and other terrain in my country, this must be connected by thousands of bridge construction.Due to the advantages of high loading capacity, light self -weight, good plasticity, fatigue, and good shock resistance, the steel pipe concrete is widely used in the construction of large span bridge projects.Compared with other types of bridges, steel pipe concrete arch bridges have advantages such as beautiful shape, reasonable force, small material dosage, and significant econo...

Claims

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Application Information

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IPC IPC(8): C04B24/42C04B103/22
Inventor 王桂明孔赟水中和
Owner 广东武理湾区科技发展有限公司