Concrete protective agent and preparation method thereof

A protective agent and concrete technology, applied in coatings, climate change adaptation, reflective/signal coatings, etc., can solve problems such as reducing heat absorption, achieve the effects of reducing heat absorption, reducing heat island effect, and not easy to transfer heat

Inactive Publication Date: 2019-12-13
SINOHYRDO ENG BUREAU 3 CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a concrete protective agent and a preparation method thereof in order to overcome the general technical problems encountered in the popularization and application of the existing permeable concrete, and at the same time effectively alleviate the urban heat island effect. At the same time, it can effectively improve the bonding surface between permeable concrete and organic protective agent, which can effectively avoid or reduce the excessive local friction of heavy vehicle loads or the low bonding strength between surface layer coarse aggregates during use. At the same time, the concrete protective agent diffusely reflects part of the ultraviolet light through the cooling material to reduce the absorption of heat, thereby alleviating the urban heat island effect

Method used

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  • Concrete protective agent and preparation method thereof
  • Concrete protective agent and preparation method thereof
  • Concrete protective agent and preparation method thereof

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preparation example Construction

[0067] Further, an embodiment of the present invention provides a method for preparing a concrete protective agent, comprising the following steps:

[0068] 1) Stir the resin with a high-speed disperser, then add diluent, anti-corrosion agent and cooling agent, continue high-speed stirring to obtain a mixture, and grind the mixture through a sand mill until the particle size is less than or equal to 15 μm; add dispersant, Defoamer, obtains finished product A;

[0069] 2) Stir and disperse the curing agent, diluent, accelerator, dispersant and defoamer at high speed to make finished product B;

[0070] 3) The concrete protective agent is prepared by mixing finished product A and finished product B according to the weight ratio of resin to curing agent of 4.5:1-5.5:1.

[0071] In a preferred embodiment of the present invention, the mass fraction of the resin is 40-60 parts, and the resin is selected from epoxy (meth)acrylate epoxy resin.

[0072] In some embodiments, the mass ...

Embodiment 1

[0092] This embodiment provides a concrete protective agent, which comprises the following components in parts by mass: 50 parts of epoxy (meth)acrylate epoxy resin, 12 parts of silicon nitride, 8 parts of hollow glass microspheres, alkylene 9 parts of glycidyl ether, 0.2 part of solsperse, 0.2 part of polysiloxane, 20.55 parts of 651 low molecular weight polyamide, 0.05 part of DMP-30.

[0093] The concrete protective agent of the present embodiment is prepared by the following method:

[0094]1) Stir the epoxy (meth)acrylate epoxy resin with a high-speed disperser, then add alkylene glycidyl ether, silicon nitride and glass microspheres, continue high-speed stirring to obtain a mixture, and pass the mixture through Grind with a sand mill until the particle size is less than or equal to 15 μm; add solsperse and polysiloxane to obtain finished product A;

[0095] 2) 2) Mix and disperse 651 low molecular weight polyamide, alkylene glycidyl ether, DMP-30, solsperse and polysilo...

Embodiment 2

[0098] This embodiment provides a concrete protective agent, comprising the following components in parts by mass: 60 parts of epoxy (meth)acrylate epoxy resin, 7 parts of silicon carbide, 12 parts of hollow glass microspheres, methyl glycidol 10 parts of ether, 0.2 parts of solsperse, 0.2 parts of polysiloxane, 10.5 parts of 304 low molecular weight polyamide, 0.1 part of DMP-30.

[0099] The concrete protective agent of the present embodiment is prepared by the following method:

[0100] 1) Stir the acrylic epoxy resin with a high-speed disperser, then add methyl glycidyl ether, silicon carbide and glass beads, continue high-speed stirring to obtain a mixture, and grind the mixture through a sand mill until the particle size is less than or equal to 15 μm ; Add solsperse and polysiloxane to obtain finished product A;

[0101] 2) 304 low molecular weight polyamide, methyl glycidyl ether, DMP-30, solsperse and polysiloxane are dispersed at high speed to make finished product ...

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Abstract

The invention provides a concrete protective agent and a preparation method thereof. The concrete protective agent has the advantages that the abrasion and corrosion resistance is high; meanwhile, thebonding surface of permeable concrete and the organic protective agent is effectively improved; the phenomena of surface abrasion and particle falling caused by overlarge local friction force of heavy vehicle loads or overlow bonding strength between coarse aggregates on a surface layer in the use process can be effectively avoided or reduced; meanwhile, the concrete protective agent performs diffuse reflection on a part of near-infrared light and the like through a cooling material, heat absorption is reduced, and the pavement temperature is reduced, so that the urban heat island effect is relieved.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a concrete protective agent and a preparation method thereof. Background technique [0002] At present, on the one hand, the rapid development of urbanization has led to serious urban flood disasters. The country has proposed and strongly called for the construction of "sponge cities". As a key material for sponge cities, permeable concrete has also developed rapidly. Due to the special structure of pervious concrete, there are large pores inside and on the surface. Under the action of load, stress concentration is prone to occur at the tip of the pores, resulting in the destruction and expansion of cracks. In the actual application process, it will cause a series of problems such as shedding of surface particles, cracking and damage. Under the action of dynamic load, the local friction force is too large (such as sudden braking of vehicles), which makes th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/10C09D163/00C09D7/61C09D5/33C04B41/65
CPCC04B41/5059C04B41/5066C04B41/65C09D5/004C09D163/10C09D7/61C09D7/70C08L63/00C08K3/34C08K7/20C08K7/28C04B41/5022C04B41/4853C04B41/46C04B41/463C04B41/48C04B41/4892C04B41/4961C04B41/4539C04B41/49C04B41/5001Y02A30/60
Inventor 焦凯陈晨赵文升褚立波李磊史迅
Owner SINOHYRDO ENG BUREAU 3 CO LTD
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