A kind of concrete material with anti-abrasion and its preparation method and application

A concrete and anti-abrasion technology, applied in the field of building materials, can solve the problems of reduced wear resistance and unstable concrete performance, and achieve the effects of reducing shrinkage deformation, significant energy saving and environmental protection benefits, and high compressive strength.

Active Publication Date: 2020-05-12
东阳市华能新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After absorbing water, its volume expands and increases several times to more than ten times, which is very unsuitable for concrete, which makes the concrete performance unstable and wear resistance strength reduced when it is applied in this field

Method used

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  • A kind of concrete material with anti-abrasion and its preparation method and application
  • A kind of concrete material with anti-abrasion and its preparation method and application
  • A kind of concrete material with anti-abrasion and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0022] In the embodiment of the present invention, a kind of anti-scouring concrete material comprises the following raw materials: Portland cement 45kg, fine sand 20kg, vinyl acetate resin 12kg, montmorillonite 16kg, octyltin maleate 1kg, levulinic acid 7kg .

[0023] Mix levulinic acid with 8 times its mass of water to prepare a levulinic acid solution. Mix and grind octyltin maleate and montmorillonite, pass through a 100-mesh sieve, then mix with levulinic acid solution, heat to 70°C, and seal and stir at this temperature for 2.2 hours at a stirring speed of 300r / min. The precipitate was collected by centrifugation, washed and dried to obtain the mixture; the centrifugation speed was 3000r / min, and the centrifugation time was 10min. Add vinyl acetate resin to the mixture, and ball mill for 55 minutes. The mass ratio of ball to material during ball milling is 5:1. Then mix it with Portland cement and fine sand, and stir evenly; the stirring speed is 150r / min. Pouring, vi...

Embodiment 2

[0025] In the embodiment of the present invention, a kind of anti-scouring concrete material comprises the following raw materials: Portland cement 55kg, fine sand 30kg, vinyl acetate resin 20kg, montmorillonite 24kg, maleate octyl tin 5kg, levulinic acid 15kg .

[0026] Mix levulinic acid with 9 times its mass of water to prepare a levulinic acid solution. Mix and grind octyltin maleate and montmorillonite, pass through a 150-mesh sieve, then mix with levulinic acid solution, heat to 72°C and seal and stir at this temperature for 2.4 hours at a stirring speed of 300r / min. The precipitate was collected by centrifugation, washed and dried to obtain the mixture; the centrifugation speed was 3000r / min, and the centrifugation time was 20min. Add vinyl acetate resin to the mixture, and ball mill for 60 minutes, the mass ratio of ball to material during ball milling is 5:1. Then mix it with Portland cement and fine sand, and stir evenly; the stirring speed is 150r / min. Pouring, v...

Embodiment 3

[0028] In the embodiment of the present invention, a kind of anti-scouring concrete material comprises the following raw materials: Portland cement 48kg, fine sand 22kg, vinyl acetate resin 14kg, montmorillonite 18kg, maleate octyl tin 2kg, levulinic acid 9kg .

[0029] Mix levulinic acid with 9 times its mass of water to prepare a levulinic acid solution. Mix and grind octyltin maleate and montmorillonite, pass through a 150-mesh sieve, then mix with levulinic acid solution, heat to 71°C and seal and stir at this temperature for 2.3 hours at a stirring speed of 300r / min. The precipitate was collected by centrifugation, washed and dried to obtain the mixture; the centrifugation speed was 3000r / min, and the centrifugation time was 20min. Add vinyl acetate resin to the mixture, and ball mill for 60 minutes, the mass ratio of ball to material during ball milling is 5:1. Then mix it with Portland cement and fine sand, and stir evenly; the stirring speed is 150r / min. Pouring, vi...

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Abstract

The invention discloses a washout-resistant concrete material as well as a preparation method and the application thereof. The concrete material comprises the following raw materials in parts by weight: 45-55 parts of Portland cement, 20-30 parts of fine sand, 12-20 parts of vinyl acetate resin, 16-24 parts of montmorillonite, 1-5 parts of dioctyl(maleate)tin and 7-15 parts of levulinic acid. Thepreparation method comprises the following steps: mixing and grinding the dioctyl(maleate)tin and the montmorillonite, further mixing with a levulinic acid solution, heating, carrying out sealed stirring treatment for 2.2-2.4 hours, carrying put centrifugal separation so as to obtain precipitate, washing and drying the precipitate, further adding the vinyl acetate resin, carrying out ball milling,further mixing with the Portland cement and fine sand, uniformly stirring, and carrying out casting, vibration and maintenance. The concrete material is relatively high in compression strength and breaking strength, is remarkably improved on aspects such as VC values, anti-permeability grades, anti-freezing strength, extreme tension, adiabatic temperature rise and chemical corrosion resistance, is effectively improved in impact wearing resistance and cracking resistance, and is particularly applicable to environments such as hydraulic drain structures with relatively high requirements on washout resistance and cracking resistance.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an abrasion-resistant concrete material and its preparation method and application. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. Concrete, which is widely used in civil engineering. However, ordinary cement concrete has disadvantages such as low compressive and flexural properties, low durability against environmental corrosion, and poor wear resistance. Especially in water conservancy projects, especially in large-scale water conservancy projects, concrete is the most important building material. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B111/76
CPCC04B28/04C04B2111/00293C04B2111/76C04B2201/50C04B14/06C04B24/2623C04B14/104C04B24/40C04B24/123
Inventor 杨改
Owner 东阳市华能新型建材有限公司
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