Composite concrete material and preparation method thereof

A technology of concrete and mixture, which is applied in the field of new composite concrete materials and its preparation, can solve the problems of poor comprehensive performance of semi-flexible pavement, hot construction and short construction period, poor durability, etc., and achieve the elimination of adverse effects and interface compatibility Good, reasonable gravel grading effect

Inactive Publication Date: 2018-10-02
SHANXI PROVINCIAL RES INST OF COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the shortcomings of semi-flexible pavement, the present invention provides a new type of composite concrete material and its preparation method to overcome the shortcomings of existing semi-flexible pavement, such as poor comprehensive performance, poor durability, partial thermal construction and short construction period, etc., for The development of high-performance pavement materials provides a new idea and new materials

Method used

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  • Composite concrete material and preparation method thereof

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Effect test

Embodiment 1

[0040] The new composite concrete material is composed of high-porosity epoxy resin gravel mixture and high-fluidity polymer-modified cement mortar. The specific composite method is that high-fluidity polymer-modified cement mortar is filled The internal pores of the crushed stone mixture form a dense composite structure after the two are consolidated and formed.

[0041] The high-porosity epoxy resin crushed stone mixture is composed of two-component epoxy resin adhesive and crushed stone, the porosity is 20%, and the mass ratio of crushed stone to adhesive is 100:6. Crushed stone is a mixture of basalt rock with a particle size of 3-5mm and basalt rock with a particle size of 5-10mm, and the mass ratio of the two is 2:1.

[0042] The two-component epoxy resin adhesive is composed of two components, A and B, and the mass ratio is A component: B component = 2:1. After the components A and B are accurately weighed according to the mass ratio, they are stirred and mixed evenly ...

Embodiment 2

[0060]The new composite concrete material is composed of high-porosity epoxy resin gravel mixture and high-fluidity polymer-modified cement mortar. The specific composite method is that high-fluidity polymer-modified cement mortar is filled The internal pores of the crushed stone mixture form a dense composite structure after the two are consolidated and formed.

[0061] The high-porosity epoxy resin crushed stone mixture is composed of two-component epoxy resin adhesive and crushed stone, the porosity is 30%, and the mass ratio of crushed stone to adhesive is 100:3. Crushed stone is a mixture of basalt rock with a particle size of 3-5mm and basalt rock with a particle size of 5-10mm, and the mass ratio of the two is 1:1.

[0062] The two-component epoxy resin adhesive is composed of A and B components, and the mass ratio is A component: B component = 3:1; A component and B component are accurately weighed according to the mass ratio, and then stirred Mix evenly to obtain the...

Embodiment 3

[0080] The new composite concrete material is composed of high-porosity epoxy resin gravel mixture and high-fluidity polymer-modified cement mortar. The specific composite method is that high-fluidity polymer-modified cement mortar is filled The internal pores of the crushed stone mixture form a dense composite structure after the two are consolidated and formed.

[0081] The high-porosity epoxy resin crushed stone mixture is composed of two-component epoxy resin adhesive and crushed stone, the porosity is 25%, and the mass ratio of crushed stone to adhesive is 100:4.5. Crushed stone is a mixture of basalt rock with a particle size of 3-5mm and basalt rock with a particle size of 5-10mm, and the mass ratio of the two is 1.5:1.

[0082] The two-component epoxy resin adhesive is composed of A and B components, and the mass ratio is A component: B component = 3:1; A component and B component are accurately weighed according to the mass ratio, and then stirred Mix evenly to obtai...

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Abstract

The invention discloses a composite concrete material belonging to the technical field of preparation of road materials and a preparation method of the composite concrete material. The composite concrete material is prepared by compounding a high void ratio epoxy resin gravel mixture with high fluidity polymer modified cement mortar; a specific compounding mode is to fill internal pores of the high void ratio epoxy resin gravel mixture with the high fluidity polymer modified cement mortar; a dense composite structure is formed by consolidating the high fluidity polymer modified cement mortar and the high void ratio epoxy resin gravel mixture. The preparation method comprises the following steps: firstly, preparing the high void ratio epoxy resin gravel mixture; secondly, pouring the high fluidity polymer modified cement mortar; thirdly, curing concrete. Compared with the prior art, the composite concrete material disclosed by the invention has the advantages of high comprehensive performance, good stability and durability, high price performance cost ratio, convenience in construction, long construction period and the like; the composite concrete material is more suitable for semi-flexible pavement paving engineering.

Description

technical field [0001] The invention belongs to the technical field of road material preparation, and in particular relates to a novel composite concrete material and a preparation method thereof. Background technique [0002] Asphalt concrete material and cement concrete material are two typical pavement materials for expressway construction in my country, each with its own advantages and disadvantages. Asphalt pavement is a flexible pavement with smooth road surface and comfortable driving, but its strength is low, its service life is short, and it is prone to high-temperature rutting and low-temperature cracking. The strength and rheological properties are greatly affected by temperature changes. When the temperature is high in summer, the asphalt material will weaken the cohesion between the aggregate particles due to the decrease in viscosity, which will reduce the strength and deformation resistance of the pavement, and it is easy to appear Waves, bumps and ruts and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/14C04B28/00
CPCC04B26/14C04B28/00C04B2201/50C04B14/14C04B24/023C04B24/32C04B24/24C04B24/2652C04B24/2641C04B2103/50C04B2103/408C04B14/06C04B7/02C04B14/383C04B14/104C04B2103/0085C04B24/121C04B2103/0068C04B24/42C04B14/022C04B24/281C04B24/02C04B18/146C04B18/08
Inventor 舒兴旺程飞申力涛张影李登华刘哲崔东霞林浩毛敏
Owner SHANXI PROVINCIAL RES INST OF COMM
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