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Road concrete and preparation method thereof

A technology for concrete and roads, applied in the field of concrete materials, can solve problems such as environmental pollution and solid waste discharge problems, and achieve the effects of reducing production costs, increasing compactness, and simple preparation methods

Active Publication Date: 2017-02-22
YOUNGWOO CHEMTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of concrete and preparation method thereof with ferronickel slag micropowder as the main admixture, the utilization rate of ferronickel slag is improved, thereby solved the problem of metallurgical industry solid waste discharge and environmental pollution, and also for Preparation of road concrete provides a source of raw material and reduces production costs

Method used

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  • Road concrete and preparation method thereof

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Effect test

Embodiment 1

[0026] The invention provides a kind of road concrete, each component of this concrete is: portland cement 7.5kg, ferronickel slag micropowder 2.1kg, slag powder 1.5kg, fly ash 0.6kg, steel slag micropowder 0.5kg, fine aggregate 24.9kg, coarse aggregate 30.6kg, admixture 120g, activator 150g, water 5.1kg; the Portland cement is P.O 42.5 grade, specific surface area is 350-600m 2 / kg; the specific surface area of ​​ferronickel slag powder is 400-550m 2 / kg; the specific surface area of ​​slag powder is 380-500m 2 / kg; the specific surface area of ​​fly ash is 450-580m 2 / kg; the specific surface area of ​​steel slag powder is 430-550m 2 / kg; the admixture is polycarboxylate high-efficiency water reducer; the activator includes 80g of sodium cocoyl sulfate and 70g of polyacrylamide; the fine aggregate is continuously graded, and the particle size of the fine aggregate is controlled at 0.15-4.75mm. The fineness modulus is 3.2, and the coarse aggregate particle size is controll...

Embodiment 2

[0031] The invention provides a kind of road concrete, each component of this concrete is: portland cement 6.0kg, ferronickel slag micropowder 2.7kg, slag powder 2.5kg, fly ash 0.5kg, steel slag micropowder 0.8g, fine aggregate 4.3kg, coarse aggregate 30.9kg, admixture 126g, activator 95g, water 4.8kg; the Portland cement is P.O 42.5 grade, specific surface area is 350-600m 2 / kg; the specific surface area of ​​ferronickel slag powder is 400-550m 2 / kg; the specific surface area of ​​slag powder is 380-500m 2 / kg; the specific surface area of ​​fly ash is 450-580m 2 / kg; the specific surface area of ​​steel slag powder is 430-550m 2 / kg; the admixture is polycarboxylate high-efficiency water reducer; the activator includes 45g of water glass and 50g of diethanol monoisopropanolamine; the fine aggregate adopts continuous gradation, and the particle size of the fine aggregate is controlled at 0.15-4.75mm. The fineness modulus is 3.2, and the coarse aggregate particle size is ...

Embodiment 3

[0036] The invention provides a kind of road concrete, each component of this concrete is: portland cement 8.0kg, ferronickel slag micropowder 2.5kg, slag powder 1.1kg, fly ash 0.8kg, steel slag micropowder 0.7kg, fine aggregate 23.8kg, coarse aggregate 29.3kg, admixture 124g, activator 200g, water 5.4kg; the Portland cement is P.O 42.5 grade, specific surface area is 350-600m 2 / kg; the specific surface area of ​​ferronickel slag powder is 400-550m 2 / kg; the specific surface area of ​​slag powder is 380-500m 2 / kg; the specific surface area of ​​fly ash is 450-580m 2 / kg; the specific surface area of ​​steel slag powder is 430-550m 2 / kg; the admixture is polycarboxylate high-efficiency water reducer; the activator is sodium cocoyl sulfate 200g; the fine aggregate adopts continuous gradation, the particle size of fine aggregate is controlled at 0.15-4.75mm, and the fineness modulus is 3.2 , the coarse aggregate particle size is controlled at 4.75-26.5mm.

[0037] The pre...

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Abstract

The invention discloses road concrete. The concrete is prepared from components in parts by mass as follows: 50-80 parts of Portland cement, 20-40 parts of ferro-nickel slag micropowder, 10-24 parts of slag powder, 5-10 parts of fly ash, 5-10 parts of steel slag micropowder, 40-300 parts of fine aggregate, 300-400 parts of coarse aggregate, 1.2-1.5 parts of an additive, 0.8-2 parts of an activator and 50-80 parts of water. All the components are mixed in a mixer, the road concrete is prepared, the preparation method is simple, and the technical requirement is not high. The ferro-nickel slag micropowder and the slag powder are added to the road concrete to serve as main admixtures, the superimposed effect of all the mixed components is played, the components complement one another, and the performance deficiency caused by simple mixing of certain components is avoided; the activator is added, the utilization rate of the ferro-nickel slag micropowder can be remarkably increased, the production cost can be reduced, the activity of the ferro-nickel slag micropowder, the slag powder, the fly ash and the steel slag micropowder is fully played, and the breaking strength and compressive strength of the road concrete are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of concrete materials, and in particular relates to a road concrete with ferronickel slag micropowder as a main admixture and a preparation method thereof. Background technique [0002] With the rapid development of our country's social economy, the road transport industry is playing an increasingly important role in it. The country is expected to invest two trillion yuan in the establishment of the "7918" national transportation highway network in 30 years. Because concrete is an essential raw material for road construction, it has the advantages of low cost, high pressure resistance, and not easily damaged by the natural environment. Concrete has been widely used in road construction. However, with the rapid development of roads, especially highway construction, the demand for concrete is also increasing, and the cementitious material required for preparing concrete is mainly cement. As we all know, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/14C04B18/08
CPCC04B28/04C04B2111/0075C04B2201/50C04B18/141C04B18/144C04B18/142C04B18/08C04B14/00C04B2103/302C04B24/16C04B24/2652C04B22/08C04B24/122Y02W30/91
Inventor 王义高闯
Owner YOUNGWOO CHEMTECH
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