Reinforced polymer cement concrete and preparation method thereof

A cement concrete and polymer technology, applied in the field of building materials, can solve the problems of high flexural strength and compressive strength, affecting the use effect of the road surface, permanent deformation of the road surface, etc., to ensure volume stability, increase strength, The effect of preventing degradation

Pending Publication Date: 2021-09-17
安徽筑园景新型建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In some special areas of the road (such as bus stops or tunnel pavements), the pavement surface is subjected to repeated actions of lateral force and shear stress, and the volume stability, flexural strength, and compressive strength of the pavement are extremely high, and pavement surface often appears The permanent deform

Method used

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  • Reinforced polymer cement concrete and preparation method thereof
  • Reinforced polymer cement concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for reinforcing polymer cement concrete, comprising the steps of:

[0025] S1. Add 4kg of nano diatomaceous earth to 80kg of ethanol aqueous solution with a mass fraction of 40%, stir, let stand for 20h, extract the upper suspension, add 0.1kg of dimethyl sulfoxide, 2kg of nano silicon dioxide, and stir at 50°C for 4h , get slurry;

[0026] S2. Heat 100 kg of water to 60° C., slowly add 40 kg of polyphenylene sulfide resin powder into it, stir evenly, add 2 kg of emulsifier, and continue stirring for 2 hours to obtain a polyphenylene sulfide emulsion;

[0027] Add 1 kg of coupling agent to the slurry for stirring, add 15 kg of polyphenylene sulfide emulsion, and continue stirring at 60°C for 4 hours to obtain a premix;

[0028] S3. Add 100kg of grade 42.5 Portland cement, 1kg of reinforcement synergist, 50kg of coarse aggregate, 5kg of sand powder with a fineness modulus of 2.70-2.85 and stone powder content < 0.30%, and 2kg of naphthalene-based ce...

Embodiment 2

[0030] A preparation method for reinforcing polymer cement concrete, comprising the steps of:

[0031] S1. Add 8kg of nanometer diatomaceous earth to 40kg of ethanol aqueous solution with a mass fraction of 60%, stir, let stand for 10h, extract the upper suspension, add 0.2kg of dimethyl sulfoxide, 1kg of nanometer silicon dioxide, and stir at 70°C for 2h , get slurry;

[0032] S2. Heat 100 kg of water to 90° C., slowly add 20 kg of polyphenylene sulfide resin powder into it, stir evenly, add 4 kg of emulsifier, and continue stirring for 1 hour to obtain a polyphenylene sulfide emulsion;

[0033] Add 2kg of coupling agent to the slurry for stirring, add 5kg of polyphenylene sulfide emulsion, and continue stirring at 80°C for 2 hours to obtain a premix;

[0034] S3. Add 100kg of grade 42.5 Portland cement, 2kg of reinforcement synergist, 20kg of coarse aggregate, 15kg of sand powder with a fineness modulus of 2.70-2.85 and stone powder content <0.30%, and 1kg of naphthalene-ba...

Embodiment 3

[0036] A method for preparing reinforced polymer cement concrete, comprising the steps of:

[0037] S1. Add 7kg of nano-diatomaceous earth to 50kg of ethanol aqueous solution with a mass fraction of 55%, stir, let stand for 12 hours, extract the upper suspension, add 0.17kg of dimethyl sulfoxide, 1.3kg of nano-silicon dioxide, and stir at 65°C 2.5h, obtain slurry;

[0038] S2. Heat 100kg of water to 80°C, slowly add 25kg of polyphenylene sulfide resin powder into it, stir evenly, add 3.5kg of emulsifier, and continue stirring for 1.3h to obtain a polyphenylene sulfide emulsion;

[0039] Add 1.8kg of coupling agent to the slurry and stir, add 6kg of polyphenylene sulfide emulsion, and continue stirring at 75°C for 2.5h to obtain a premix;

[0040] S3. Add 100kg 42.5 grade Portland cement, 1.7kg reinforcement synergist, 30kg coarse aggregate, 812kg sand powder with a fineness modulus of 2.70-2.85 and stone powder content <0.30%, 1.3kg Naphthalene-based water reducer, 0.8kg alk...

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Abstract

The invention discloses reinforced polymer cement concrete, which is prepared from the following raw materials in parts by weight: 100 parts of cement, 5 to 15 parts of polyphenylene sulfide emulsion, 1 to 2 parts of nano silicon dioxide, 4 to 8 parts of nano diatomite, 20 to 50 parts of coarse aggregate, 5 to 15 parts of sand powder, 1 to 2 parts of a reinforcing synergist, 1 to 2 parts of a coupling agent, 1 to 2 parts of a naphthalene type water reducer, 0.1 to 1 part of alkyl tin carboxylate, 0.1 to 1 part of pentaerythritol, 0.1 to 1 part of an anti-permeability synergist, 0.1 to 0.2 part of dimethyl sulfoxide and 40-80 parts of an ethanol water solution. The invention also discloses a preparation method of the reinforced polymer cement concrete. According to the invention, the concrete structure can be effectively promoted to form a stable and fine structure, so that the volume stability of the concrete is ensured, the breaking strength, the compressive strength and the flexural-compressive ratio are enhanced, the toughness is also obviously improved, and the wear resistance is relatively strong.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a reinforced polymer cement concrete and a preparation method thereof. Background technique [0002] Concrete is the largest building material in the world. It is mainly composed of cementitious materials, coarse and fine aggregates and water. Concrete has a series of advantages, such as superior plasticity, good water resistance, excellent durability and extremely Due to its competitive economy, it has become the largest and most widely used material in the world, and will remain one of the most important engineering structural materials in the future. [0003] In some special areas of the road (such as bus stops or tunnel pavements), the pavement surface is subjected to repeated actions of lateral force and shear stress, and the volume stability, flexural strength, and compressive strength of the pavement are extremely high, and pavement surface often appears The pe...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B2201/52C04B24/16C04B24/00C04B24/026C04B24/40C04B14/02C04B14/06C04B14/08C04B14/14C04B2103/0068C04B2103/302
Inventor 吴业发高勤孟伟余夕海
Owner 安徽筑园景新型建材科技有限公司
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