Preparation method of modified mixed basalt fiber concrete

A technology of basalt fiber and concrete, which is applied in the field of concrete processing, can solve the problems of poor fusion between polymer compounds and concrete, and achieve the effects of saving manpower and material resources, excellent performance, and simple preparation process

Inactive Publication Date: 2019-01-22
罗永山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface modification of basalt fiber has increased the fusion of basalt fiber and concrete, but the polymer compound and concrete still have the problem of poor fusion

Method used

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  • Preparation method of modified mixed basalt fiber concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Soak 24 parts by mass of 20-40mm basalt fibers in excess sulfuric acid for 50 minutes, drain the sulfuric acid, and immediately add 12 parts by mass of cyclohexanone peroxide, 16 parts by mass of cinnamaldehyde, 7 parts by mass of 50-80mm high crimp high wet modulus viscose fiber, 17 parts by mass of dimethylaminoethyl acrylate, the temperature is 44°C, the stirring rate is 160r / min and stirred for 38min; then add 29 parts by mass of titanic acid Ester coupling agent, the temperature is 75°C, the stirring speed is 320r / min and stirred for 1h to obtain the modified mixed fiber;

[0026] (2) Put 370 parts by mass of gravel and sand of 00 parts by mass into the mixer and stir for 60 seconds; put in 380 parts by mass of cement, 200 parts by mass of fly ash, and slag powder of 200 parts by mass Stir for 70s; 40 parts by mass of polycarboxylate superplasticizer, 180 parts by mass of water, and 10 parts by mass of diethylenetriaminepentamethylenephosphonic acid are added t...

Embodiment 2

[0028] (1) Soak 30 parts by mass of 20-40mm basalt fiber in excess sulfuric acid for 40 minutes, drain the sulfuric acid, and immediately add 14 parts by mass of cyclohexanone peroxide, 15 parts by mass of perillaldehyde, 9 parts by mass of 50-80mm high crimp high wet modulus viscose fiber, 20 parts by mass of dimethylaminoethyl acrylate, the temperature is 48°C, the stirring rate is 200r / min and stirred for 40min; then add 30 parts by mass of titanium Ester coupling agent, the temperature is 80°C, the stirring speed is 380 / min and stirred for 2h to obtain the modified mixed fiber;

[0029] (2) Put 420 parts by mass of crushed stone and 800 parts by mass of sand into the mixer and stir for 65 seconds; put in 450 parts by mass of cement, 180 parts by mass of fly ash, and 100 parts by mass of mineral powder and mix Stir for 80s; 42 parts by mass of lignosulfonate water reducer, 190 parts by mass of water, and 9 parts by mass of diethylenetriaminepentamethylenephosphonic acid are...

Embodiment 3

[0031] (1) Soak 26 parts by mass of 20-40mm basalt fibers in excess sulfuric acid for 60 minutes, drain the sulfuric acid, and immediately add 15 parts by mass of cyclohexanone peroxide, 20 parts by mass of veratraldehyde, 10 parts by mass of 50-80mm high crimp high wet modulus viscose fiber, 15 parts by mass of dimethylaminoethyl acrylate, the temperature is 41°C, the stirring rate is 100r / min and stirred for 32min; then add 22 parts by mass of titanium Ester coupling agent, the temperature is 65°C, the stirring rate is 300r / min and stirred for 1h to obtain the modified mixed fiber;

[0032] (2) Put 430 parts by mass of crushed stone and 850 parts by mass of sand into the mixer and stir for 80 seconds; put in 350 parts by mass of cement, 220 parts by mass of fly ash, and 120 parts by mass of mineral powder and mix Stir for 75s; 45 parts by mass of polycarboxylate superplasticizer, 170 parts by mass of water, and 8 parts by mass of diethylenetriaminepentamethylenephosphonic ac...

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Abstract

The invention discloses a preparation method of modified mixed basalt fiber concrete, the method comprises the following steps: soaking basalt fiber in excessive sulfuric acid, discharging sulfuric acid, and then sequentially adding cyclohexanone peroxide, natural aldehyde, high-curling high-wet-modulus viscose and dimethylaminoethyl acrylate for stirring; then adding a titanate coupling agent, and stirring to obtain modified mixed fiber; putting crushed stones and sand into a stirrer for stirring; adding cement, coal ash and mineral powder for stirring; mixing a water reducer, water and Diethylene Triamine Penta (Methylene Phosphonic Acid) into a stirrer to be stirred so as to obtain a concrete matrix; uniformly spreading the modified mixed basalt fiber into the concrete matrix and stirring so as to obtain the modified mixed basalt fiber concrete. The concrete has excellent toughness, crack resistance, mechanical property, corrosion resistance and high temperature resistance and longer service life.

Description

technical field [0001] The invention belongs to the technical field of concrete processing, and in particular relates to a preparation method of modified mixed basalt fiber concrete. Background technique [0002] Concrete is generally made by mixing cement, sand, stone and water, and is widely used in the field of civil engineering. As a base material, concrete has some problems, such as low tensile strength, poor toughness, and easy cracking. Therefore, adding a certain amount of fiber material can increase its mechanical strength, toughness, crack resistance, etc. The fibers added to concrete are generally steel fibers, carbon fibers, glass fibers, resin fibers, etc. [0003] Basalt fiber is a research hotspot in recent years. It uses basalt ore as raw material and is drawn by high-temperature melting at high speed. It has many advantages such as good crack resistance, high temperature resistance, good shock resistance, good stability, and high tensile strength. And the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2201/50C04B14/46C04B16/06C04B18/12C04B14/06C04B18/08C04B2103/302C04B24/121
Inventor 罗永山
Owner 罗永山
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