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A kind of super-tough fiber composite resin concrete and its preparation method

A technology of resin concrete and fiber composite, which is applied in the field of super-tough fiber composite resin concrete and its specific preparation, can solve problems such as fatigue cracks, macro fatigue cracks, fatigue damage, etc. Effect of improving crack resistance

Active Publication Date: 2022-04-15
JIANGSU CHANGLU ENERGY TECH DEV CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to its high strength, good corrosion resistance, good fatigue resistance, and good water stability, epoxy asphalt concrete has been applied in many large-span steel bridge deck pavements at home and abroad, but it is different from thermoplastic asphalt pavement , Epoxy asphalt is a thermosetting material, which is easy to crack and seriously affects the overall service durability of the steel bridge deck
[0003] Due to the above defects, with the increase of the service life and the heavy traffic load, the epoxy asphalt concrete bridge deck pavement has problems such as fatigue cracks; the reason is mainly because the epoxy asphalt concrete is heterogeneous, temperature Sensitive multi-directional materials have many micropores and microcracks inside. The original defects of these materials will continue to evolve and develop under the repeated action of temperature and driving load, and finally form macroscopic fatigue cracks. If the fatigue cracks develop further, it will will cause fatigue damage

Method used

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  • A kind of super-tough fiber composite resin concrete and its preparation method
  • A kind of super-tough fiber composite resin concrete and its preparation method
  • A kind of super-tough fiber composite resin concrete and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] The super-tough fiber composite resin concrete of the present invention comprises 11 parts by mass of super-tough acrylic resin slurry, 1 part of high modulus hybrid chopped fiber, 100 parts of graded mineral material, 12 parts of rubber powder, and 0.1 part of anti-ultraviolet auxiliary agent .

[0062] Among them, the ultra-tough acrylic resin slurry is made by mixing the modified acrylic resin MMR toughened by the active polyether flexible segment and the polyurethane monomer PU at a mass ratio of 5:3 at 40°C-50°C; the high modulus hybrid chopped The fiber is made by mixing glass fiber GF surface treated with oily diaminosilane coupling agent, basalt fiber BF and carbon fiber CF treated with oily epoxy silane coupling agent at a mass ratio of 0.35:1:0.65; gradation The mineral material is composed of basalt aggregates of different particle sizes and mineral powder dry mixed in the mass ratio (5-10mm):(3-5mm):(0-3mm):mineral powder=25:21.5:45:8.5.

[0063] The super-...

Embodiment 2

[0068] The super-tough fiber composite resin concrete of the present invention comprises 12 parts by mass of super-tough acrylic resin slurry, 1.5 parts of high modulus hybrid chopped fibers, 100 parts of graded mineral material, 13.5 parts of rubber powder, and 0.1 part of anti-ultraviolet auxiliary agent .

[0069] Among them, the ultra-tough acrylic resin slurry is made by mixing the modified acrylic resin MMR toughened by the active polyether flexible segment and the polyurethane monomer PU at a mass ratio of 5:3 at 40°C-50°C; the high modulus hybrid chopped The fiber is made by mixing glass fiber GF surface treated with oily diaminosilane coupling agent, basalt fiber BF and carbon fiber CF treated with oily epoxy silane coupling agent at a mass ratio of 0.35:1:0.65; gradation The mineral material is composed of basalt aggregates of different particle sizes and mineral powder dry mixed in the mass ratio (5-10mm):(3-5mm):(0-3mm):mineral powder=25:21.5:45:8.5.

[0070] The ...

Embodiment 3

[0075] The super-tough fiber composite resin concrete of the present invention comprises 14 parts by mass of super-tough acrylic resin slurry, 2 parts of high modulus hybrid chopped fibers, 100 parts of graded mineral materials, 15.5 parts of rubber powder, and 0.12 parts of anti-ultraviolet auxiliary agent .

[0076] Among them, the ultra-tough acrylic resin slurry is made by mixing the modified acrylic resin MMR toughened by the active polyether flexible segment and the polyurethane monomer PU at a mass ratio of 5:3 at 40°C-50°C; the high modulus hybrid chopped The fiber is made by mixing glass fiber GF surface treated with oily diaminosilane coupling agent, basalt fiber BF and carbon fiber CF treated with oily epoxy silane coupling agent at a mass ratio of 0.35:1:0.65; gradation The mineral material is composed of basalt aggregates of different particle sizes and mineral powder dry mixed in the mass ratio (5-10mm):(3-5mm):(0-3mm):mineral powder=25:21.5:45:8.5.

[0077] The...

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Abstract

The invention discloses a super-tough fiber composite resin concrete and a preparation method thereof, comprising the following components by weight: super-tough acrylic resin slurry: 9.5-15 parts, high-modulus hybrid chopped fibers: 1-2 parts, Graded mineral material: 100 parts, rubber powder: 12-18 parts, anti-ultraviolet additives: 0.1-0.15 parts; super-tough acrylic resin slurry is a mixture of modified acrylic resin and polyurethane monomer toughened by active polyether flexible chain segment . The ultra-tough fiber composite resin concrete prepared by the present invention significantly improves the crack resistance of the material through combination and optimization of the preparation process. Compared with UHPC ultra-high performance concrete, the curing time is greatly shortened, the construction is more convenient, and the material is resistant to fatigue cracks. Performance and crack propagation resistance are better than hot-mix epoxy asphalt, and it can effectively compensate for the defects of fatigue bending and tensile cracks on the surface of steel bridge deck pavement in application.

Description

technical field [0001] The invention relates to a road and bridge pavement material and a preparation method thereof, in particular to super-tough fiber composite resin concrete and a specific preparation method thereof. Background technique [0002] Due to its high strength, good corrosion resistance, good fatigue resistance, and good water stability, epoxy asphalt concrete has been applied in many large-span steel bridge deck pavements at home and abroad, but it is different from thermoplastic asphalt pavement , Epoxy asphalt is a thermosetting material, which is easy to crack and seriously affects the overall service durability of the steel bridge deck. [0003] Due to the above defects, with the increase of the service life and the heavy traffic load, the epoxy asphalt concrete bridge deck pavement has problems such as fatigue cracks; the reason is mainly because the epoxy asphalt concrete is heterogeneous, temperature Sensitive multi-directional materials have many mic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/06C04B111/34
CPCC04B26/06C04B2111/343C04B18/22C04B14/42C04B14/4643C04B14/383C04B14/14C04B18/141C04B2103/605
Inventor 张志祥张辉周橙琪万建军潘友强吕浩
Owner JIANGSU CHANGLU ENERGY TECH DEV CO LTD
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