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Ultra-fine soil concrete and preparation method thereof

A technology for concrete and concrete regeneration, applied in the field of civil engineering materials, can solve the problems of high cost of raw materials, health conditions, large demand for materials, etc., and achieve the effects of saving manpower and material resources, widening sources, and improving tensile strength

Inactive Publication Date: 2018-12-14
XIAN UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the strength of the concrete in the above two patents can meet the road use requirements, its high raw material cost and strict health conditions make it unsuitable for roads with a wide distribution area and a large demand for materials, which require large-scale on-site construction requirements

Method used

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  • Ultra-fine soil concrete and preparation method thereof
  • Ultra-fine soil concrete and preparation method thereof
  • Ultra-fine soil concrete and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] The ultra-fine soil concrete of this embodiment is made of the following components by mass: 1500 parts of loess, 400 parts of 42.5 ordinary Portland cement, 310 parts of grade I fly ash, 195 parts of silica fume, and 66 parts of concrete regeneration agent , 100 parts of iron-containing polypropylene fiber, 463 parts of water; the loess is ground to more than 90% of the ultrafine soil with a particle size of less than 1mm, and the silica fume is amorphous spherical particles, and SiO in silica fume 2 The mass content of not less than 83%, SiO 2 The specific surface area is not less than 15m 2 / g; The main components of the concrete regeneration agent are isoprenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, acrylic acid, methallyl polyoxyethylene Ethylene glycol macromonomer, acrylic acid, ammonium persulfate, mercaptoacetic acid, branched active macromonomer and sodium bisulfite; the iron-containing polypropylene...

Embodiment 2

[0046] The ultra-fine soil concrete of this embodiment is made of the following components by mass: 1300 parts of loess, 243 parts of 42.5 ordinary Portland cement, 200 parts of Class I fly ash, 147 parts of silica fume, and 80 parts of concrete regeneration agent , 80 parts of iron-containing polypropylene fiber, 318 parts of water; the loess is ground to more than 90% of the ultrafine soil with a particle size of less than 1mm; the silica fume is amorphous spherical particles, and SiO in silica fume 2 The mass content of not less than 83%, SiO 2 The specific surface area is not less than 15m 2 / g; The main components of the concrete regeneration agent are isoprenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, acrylic acid, methallyl polyoxyethylene Ethylene glycol macromonomer, acrylic acid, ammonium persulfate, mercaptoacetic acid, branched active macromonomer and sodium bisulfite; the iron-containing polypropylene fiber...

Embodiment 3

[0052] The ultra-fine soil concrete of this embodiment is made of the following components by mass: 1500 parts of loess, 380 parts of 42.5 ordinary Portland cement, 230 parts of grade I fly ash, 180 parts of silica fume, and 62 parts of concrete regeneration agent , 100 parts of iron-containing polypropylene fiber, 498 parts of water; the loess is ground to more than 90% of the ultrafine soil with a particle size of less than 1mm; the silica fume is amorphous spherical particles, and SiO in silica fume 2 The mass content of not less than 83%, SiO 2 The specific surface area is not less than 15m 2 / g; The main components of the concrete regeneration agent are isoprenyl polyoxyethylene ether, hydrogen peroxide, vinyltriethoxysilane, sodium hydroxide, ferrous sulfate, acrylic acid, methallyl polyoxyethylene Ethylene glycol macromonomer, acrylic acid, ammonium persulfate, mercaptoacetic acid, branched active macromonomer and sodium bisulfite; the iron-containing polypropylene fib...

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Abstract

The invention discloses ultra-fine soil concrete. The ultra-fine soil concrete is mainly prepared from soil, cement, fly ash, silica fume, a concrete regenerant, iron-containing polypropylene fibers and water. The soil is ground into ultra-fine soil containing 90% or more of particles with sizes of less than 1mm. The invention also discloses a preparation method of the ultra-fine soil concrete. The preparation method comprises: uniformly mixing raw materials, uniformly stirring the mixture and the concrete regenerant, pouring the mixture into a mold, orderly carrying out insertion smashing andvibration smashing, carrying out standing, carrying out demolding and carrying out curing. The single mineral particle or agglomerate in the soil is exposed through grinding and then undergoes an active reaction to produce gel under the conditions of cement hydration reaction heat release so that other components in the concrete are firmly cemented together, the tensile strength of the concrete is greatly improved and the raw material cost of the concrete and the pollution damage to the environment are reduced. The preparation method is simple, has low equipment requirements, is easy to implement and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of civil engineering materials, and in particular relates to an ultrafine soil concrete and a preparation method thereof. Background technique [0002] Concrete is an indispensable building material in current engineering construction, which is widely used and used in huge quantities. Ordinary concrete is mainly composed of cement and stone, and the production of cement not only consumes a lot of electricity, but also causes environmental pollution, such as smog. The mining of stone materials will not only consume a lot of manpower and material resources, but also cause more serious damage to the mountain body and cause more serious environmental damage effects. [0003] The invention patent with the application number 201510538352.7 discloses an ultra-high-strength reactive powder concrete and its preparation method, and the invention patent with the application number 201710175668.3 discloses a recycled s...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B14/361C04B18/08C04B18/146C04B24/32C04B24/42C04B24/28C04B24/04C04B22/14C04B22/149C04B22/062C04B22/068C04B16/0633
Inventor 李晓军李昊翟雪强马嘉昕易浩吴燕利
Owner XIAN UNIV OF SCI & TECH
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