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Silicon mortar material as well as preparation and applications thereof

A technology of silica fume slurry and bulk material, which is applied in the application field of silica fume, can solve problems such as pollution of the environment, and achieve the effects of improving dispersion efficiency, simple process and reducing environmental pollution.

Active Publication Date: 2013-07-10
CCCC FOURTH HARBOR ENG INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to make up for the deficiencies of the prior art, to provide a silica fume slurry material and a preparation method thereof, which can not only solve the problem of silica fume polluting the environment during use, but also increase the dispersion rate of silica fume in concrete. Improve efficiency

Method used

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  • Silicon mortar material as well as preparation and applications thereof
  • Silicon mortar material as well as preparation and applications thereof
  • Silicon mortar material as well as preparation and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This example is the preparation example of silica fume slurry.

[0021] In a 6000L mixing tank equipped with powerful dispersing equipment, add 2000kg of water. While maintaining continuous stirring, first add 12.5kg of 20% sulfuric acid solution and 3kg of sodium tripolyphosphate, and then gradually add silica fume at a speed of On the basis of ensuring that the added silica fume can be quickly dispersed into water, the total amount of silica fume added is 2000kg, and finally the remaining 984.5kg of water is added, and the stirring is kept for 30 minutes. The silica fume content of the finally formed silica fume slurry is 40%. Its formulation is shown in Table 1 below.

[0022] Table 1

[0023] serial number material

Embodiment 2

[0025] This example is the preparation example of silica fume slurry.

[0026] Carry out batching according to following table 2 and operate by the step of embodiment 1:

[0027] Table 2

[0028] serial number material

Embodiment 3

[0030] This example is the preparation example of silica fume slurry.

[0031] Carry out batching according to following table 3 and operate by the step of embodiment 1:

[0032] table 3

[0033] serial number material

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Abstract

The invention discloses a silicon mortar material. The formula of the silicon mortar material comprises raw materials of silica fume, water, a retarder and an acidifier, wherein the mass ratio of silica fume to water is 1:(0.9-2.5), the mass content of the retarder is 0.01-0.06% of the silicon mortar material, and the mass content of the acidifier is 0.01-0.05% of the silicon mortar material. The environment-friendly and high-efficiency silicon mortar material is prepared by taking silica fume as raw materials and applied to preparing concrete. The method is simple in technique, the prepared silicon mortar can be widely applied to various concretes, and to important projects of harbor projects, water-conservancy dam projects, nuclear power projects, highways and railways and the like having higher requirements on the concrete, and can also be used as common concrete for replacing cement. The prepared silicon mortar material is beneficial to reduction of the environment pollution caused by directly using silica fume, the dispersion efficiency of silica fume in the concrete can be improved, and the strength, permeability resistance, chemical corrosion resistance and the like of the concrete can be obviously enhanced.

Description

technical field [0001] The invention relates to the application technical field of silica fume, in particular to the application of silica fume slurry material in the technical field of concrete. technical background [0002] Silica fume is the dust recovered from the flue gas of metal silicon or ferrosilicon alloy smelting. The average particle size of silica fume is 0.15-0.2 micron, and the specific surface area is 15000-20000m2 / kg. Its main component is silicon dioxide, with a content of 80% to 92%. The impurity components are sodium oxide, calcium oxide, magnesium oxide, iron oxide, iron oxide and activated carbon, etc. [0003] At present, the utilization of silica fume at home and abroad is mainly for the concrete industry, refractory material additives, cement admixtures, etc., and its application range is very wide. From the concrete industry, it has been widely used in seaport projects, hydropower and water conservancy projects, industrial and civil construction ...

Claims

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Application Information

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IPC IPC(8): C04B18/14
CPCY02W30/91
Inventor 温永向王胜年彭良聪陈中杰
Owner CCCC FOURTH HARBOR ENG INST
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