High-wear-resistant building material and preparation method and application thereof

A building material, high wear-resistant technology, applied in the field of building materials, can solve the problems of reduced wear resistance strength, unstable concrete performance, etc., achieve the effects of reducing drying shrinkage deformation, significant energy saving and environmental protection benefits, and improving crack resistance

Active Publication Date: 2018-06-08
兰州新华恒混凝土有限责任公司
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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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  • High-wear-resistant building material and preparation method and application thereof
  • High-wear-resistant building material and preparation method and application thereof
  • High-wear-resistant building material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In the embodiment of the present invention, a highly wear-resistant building material includes the following raw materials: 45kg of Portland cement, 20kg of fine sand, 12kg of guar gum, 16kg of vermiculite, and 7kg of ethanolamine.

[0023] Mix ethanolamine with 8 times its mass of water to prepare ethanolamine solution. Mix and grind the vermiculite, pass through a 100-mesh sieve, then mix with ethanolamine solution, heat to 70°C and seal and stir at this temperature for 2.2 hours, with the 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 guar gum to the mixture, ball mill for 55min, and 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, vibrating and curing.

Embodiment 2

[0025] In the embodiment of the present invention, a highly wear-resistant building material includes the following raw materials: Portland cement 55kg, fine sand 30kg, guar gum 20kg, vermiculite 24kg, ethanolamine 15kg.

[0026] Mix ethanolamine with 9 times its mass of water to prepare ethanolamine solution. Mix and grind the vermiculite, pass through a 150-mesh sieve, then mix with ethanolamine solution, heat to 72°C and seal and stir at this temperature for 2.4 hours, with the 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 guar gum to the mixture, ball mill for 60min, 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, vibrating and curing.

Embodiment 3

[0028] In the embodiment of the present invention, a highly wear-resistant building material includes the following raw materials: 48kg of Portland cement, 22kg of fine sand, 14kg of guar gum, 18kg of vermiculite, and 9kg of ethanolamine.

[0029] Mix ethanolamine with 9 times its mass of water to prepare ethanolamine solution. Mix and grind the vermiculite, pass through a 150-mesh sieve, then mix with ethanolamine solution, heat to 71°C and seal and stir at this temperature for 2.3h, with the stirring speed at 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 guar gum to the mixture, ball mill for 60min, 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, vibrating and curing.

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Abstract

The invention discloses a high-wear-resistant building material and a preparation method and application thereof. The high-wear-resistant building 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 guar gum, 16-24 parts of vermiculite and 7-15 parts of ethanol amine. The preparation method comprises the following steps: mixing and grinding vermiculite; mixing the ground vermiculite with an ethanol amine solution; performing heating, sealing and stirring for 2.2-2.4 h; performing centrifugal separation; taking a deposit; washing and then drying the deposit; adding guar gum; performing ball-milling; mixing with portland cement and fine sand; performing uniform stirring; and performing casting, vibrationand maintenance to obtain the high-wear-resistant building material. The high-wear-resistant building material is higher in compressive strength and rupture strength, and is remarkably improved in VCvalue, seepage resistance grade, anti-freezing strength, ultimate tensile property, adiabatic temperature rise, chemical corrosion resistance and the like, the erosion and abrasion resistance is effectively improved, the crack resistance is improved, and the high-wear-resistant building material is particularly suitable for environments such as hydraulic drainage buildings, which demand more on the erosion wear resistance and the crack resistance of concrete.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a highly wear-resistant building 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. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B2201/52C04B14/06C04B14/042C04B24/38C04B24/122
Inventor 阮袆
Owner 兰州新华恒混凝土有限责任公司
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