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Steel-carbon mixed fibre concrete material and preparation method thereof

A technology of mixing fiber and concrete, applied in the field of concrete materials, can solve the problems of short service life, poor impact resistance, poor water conveying capacity, etc., achieve long service life, good impact strength, and increase the ability to prevent bleeding Effect

Inactive Publication Date: 2018-07-24
ANHUI YUTE CONCRETE STRUCTURE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, traditional reinforced concrete pipes have problems such as poor corrosion resistance, difficult installation, poor water delivery capacity, poor sealing performance, and short service life, while plastic pipes have problems such as poor overall strength, poor impact resistance, and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A steel-carbon mixed fiber concrete material in this embodiment is made of the following raw materials in parts by weight: 20 parts of calcareous bentonite, 20 parts of nano-scale calcium carbonate, 30 parts of fine aggregate, 30 parts of coarse aggregate, 15 parts of steel slag, carbon fiber 10 parts, 1 part of enhancer, 2 parts of organic thickener, 100 parts of water;

[0022] Among them, the fine aggregate is washed river sand with a fineness modulus of 3; the coarse aggregate is crushed stone with a particle size of 15mm; the particle size of calcareous bentonite is 200 mesh; the particle size distribution of nano-scale calcium carbonate is Ground calcium carbonate with D50<200nm; the reinforcing agent is glass fiber with a length of 3mm; the organic thickener is Welan gum;

[0023] The preparation method of a steel-carbon mixed fiber concrete material in this embodiment comprises the following steps: weighing each raw material according to parts by weight; mixing ...

Embodiment 2

[0025] A steel-carbon mixed fiber concrete material in this embodiment is made of the following raw materials in parts by weight: 45 parts of calcareous bentonite, 45 parts of nano-scale calcium carbonate, 65 parts of fine aggregate, 60 parts of coarse aggregate, 35 parts of steel slag, carbon fiber 25 parts, 4 parts of enhancer, 5 parts of organic thickener, 200 parts of water;

[0026] Among them, the fine aggregate is washed river sand with a fineness modulus of 3.6; the coarse aggregate is crushed stone with a particle size of 25 mm; the particle size of calcareous bentonite is 260 mesh; the particle size distribution of nano-scale calcium carbonate is Heavy calcium carbonate with D50<200nm; the reinforcing agent is aramid fiber with a length of 6mm; the organic thickener is xanthan gum;

[0027] The preparation method of a steel-carbon mixed fiber concrete material in this embodiment comprises the following steps: weighing each raw material according to parts by weight; m...

Embodiment 3

[0029] A steel-carbon mixed fiber concrete material in this embodiment is made of the following raw materials in parts by weight: 32 parts of calcareous bentonite, 32 parts of nanoscale calcium carbonate, 47 parts of fine aggregate, 45 parts of coarse aggregate, 25 parts of steel slag, carbon fiber 18 parts, 2.5 parts of enhancer, 3.5 parts of organic thickener, 150 parts of water;

[0030] Among them, the fine aggregate is washed river sand with a fineness modulus of 3.3; the coarse aggregate is crushed stone with a particle size of 20 mm; the particle size of calcareous bentonite is 230 mesh; the particle size distribution of nano-scale calcium carbonate is Ground calcium carbonate with D50<200nm; the reinforcing agent is glass fiber with a length of 4.5mm; the organic thickener is hydroxyethyl cellulose;

[0031] The preparation method of a steel-carbon mixed fiber concrete material in this embodiment comprises the following steps: weighing each raw material according to pa...

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Abstract

The invention provides a steel-carbon mixed fibre concrete material and a preparation method thereof, and relates to the technical field of concrete materials. The steel-carbon mixed fibre concrete material provided by the invention is prepared from the following raw materials: calcium bentonite, nano-scale calcium carbonate, fine aggregate, coarse aggregate, steel slag, carbon fibres, a reinforcing agent, an organic thickening agent and water. The steel-carbon mixed fibre concrete material disclosed by the invention is good in corrosion resistance, good in sealing property, long in service life, high in strength, and good in impact resistance; the organic thickening agent serving as a raw material can effectively improve the plastic viscosity of fresh concrete, improve the segregation andweeping resistance of the concrete, fully utilize the bubble stabilizing characteristic of the organic thickening agent, and effectively control the bubble stability of the fresh concrete; the calcium bentonite forms colloid in the water, so that the plastic viscosity of the fresh concrete can be effectively improved; therefore, the comprehensive performance of the steel-carbon mixed fibre concrete material is improved.

Description

technical field [0001] The invention relates to the technical field of concrete materials, in particular to a steel-carbon mixed fiber concrete material and a preparation method thereof. Background technique [0002] With the rapid development of the national economy and the acceleration of urbanization, the demand for pipes is increasing. Compared with metal pipes and plastic pipes, due to the low cost of steel-carbon mixed fiber concrete materials, it is favored by design departments and user departments. Common concrete pipes currently on the market are mainly prestressed concrete pipes, concrete pipes and reinforced concrete pipes, and the most used ones are reinforced concrete pipes. According to different pipe-making processes, the pipe-making methods can be divided into centrifugal, hanging roller, vertical extrusion and vertical vibration methods. Compared with other pipe-making processes, the suspended roller method has the characteristics of high external pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/38C04B14/42C04B16/06C04B24/38
CPCC04B28/001C04B14/386C04B14/42C04B16/0691C04B24/38C04B24/383C04B14/28C04B14/068C04B14/02C04B18/142C04B22/002
Inventor 肖吕阳
Owner ANHUI YUTE CONCRETE STRUCTURE TECH
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