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Self-insulation high-strength environment-friendly concrete and preparation method thereof

An environmentally friendly concrete, high-strength technology, applied in the field of concrete, can solve the problems of reducing the strength performance of concrete, poor interface compatibility, etc., and achieve the effects of improving interface compatibility, improving strength performance, and improving active energy.

Inactive Publication Date: 2020-11-10
蔡念明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese Patent Document Publication No. CN103755240B discloses a kind of thermal insulation concrete, including the following components in parts by mass: 750-800 parts of cement, 25-30 parts of polyurethane particles, 10-15 parts of polystyrene foam particles, 8- 12 parts, 15-20 parts of blowing agent, 800-850 parts of water; in this document, the composite addition of polystyrene foam particles and polyurethane particles can improve the thermal insulation effect, but the styrene foam particles, polyurethane and concrete Inorganic materials such as cement have poor interfacial compatibility, which reduces the strength of concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of self-insulating high-strength environment-friendly concrete of the present embodiment comprises the following raw materials in parts by weight:

[0028] 100 parts of Portland cement, 40 parts of fine sand, 15 parts of foamed polyurethane resin, 20 parts of fly ash, 5 parts of modified wollastonite, 12 parts of blast furnace slag powder, 1 part of interface agent, sodium lignosulfonate 5 parts of water agent and 80 parts of deionized water.

[0029] The preparation method of the foamed polyurethane resin of the present embodiment is:

[0030] Step 1: Preparation of modified additives: Grind 10 parts of bentonite to 100 mesh first, then add it to 40 parts of sodium lauryl sulfate for ultra-dispersion for 20 minutes, the ultrasonic power is 100W, then take it out, dry it, and then irradiate it with electron beams treatment, the irradiation energy is 220keV, and the injection volume is 2×10 4 cm;

[0031] Step 2: Cyclodextrin modified polyurethane resin: 10 par...

Embodiment 2

[0040] A kind of self-insulating high-strength environment-friendly concrete of the present embodiment comprises the following raw materials in parts by weight:

[0041] 120 parts of Portland cement, 50 parts of fine sand, 25 parts of foamed polyurethane resin, 30 parts of fly ash, 15 parts of modified wollastonite, 18 parts of blast furnace slag powder, 5 parts of interface agent, sodium lignosulfonate 10 parts of water agent and 100 parts of deionized water.

[0042] The preparation method of the foamed polyurethane resin of the present embodiment is:

[0043] Step 1: Preparation of modified additives: Grind 10 parts of bentonite to 200 mesh first, then add it to 40 parts of sodium lauryl sulfate for ultra-dispersion for 30 minutes, the ultrasonic power is 200W, then take it out, dry it, and then irradiate it with electron beams treatment, the irradiation energy is 280keV, and the injection volume is 4×10 4 cm;

[0044] Step 2: Cyclodextrin modified polyurethane resin: 10 p...

Embodiment 3

[0053] A kind of self-insulating high-strength environment-friendly concrete of the present embodiment comprises the following raw materials in parts by weight:

[0054] 110 parts of Portland cement, 45 parts of fine sand, 20 parts of foamed polyurethane resin, 25 parts of fly ash, 10 parts of modified wollastonite, 15 parts of blast furnace slag powder, 3 parts of interface agent, sodium lignosulfonate 7.5 parts of water agent and 90 parts of deionized water.

[0055] The preparation method of the foamed polyurethane resin of this example is:

[0056] Step 1: Preparation of modified additives: Grind 10 parts of bentonite to 150 mesh first, then add 45 parts to sodium lauryl sulfate for ultra-dispersion for 25 minutes, ultrasonic power is 150W, then take it out, dry, and then irradiate with electron beams treatment, the irradiation energy is 250keV, and the injection volume is 3×10 4 cm;

[0057] Step 2: Cyclodextrin modified polyurethane resin: 10 parts of polyurethane res...

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Abstract

The invention discloses self-insulation high-strength environment-friendly concrete, which is prepared from the following raw materials in parts by weight: 100-120 parts of Portland cement, 40-50 parts of fine sand, 15-25 parts of foamed polyurethane resin, 20-30 parts of fly ash, 5-15 parts of modified wollastonite, 12-18 parts of blast furnace slag powder, 1-5 parts of an interface agent, 5-10 parts of a sodium lignosulfonate water reducing agent and 80-100 parts of deionized water. According to the invention, inorganic raw materials such as Portland cement, fine sand, fly ash, blast furnaceslag powder and the like are used as main agents, and foamed polyurethane resin, an interface agent and modified wollastonite are used as auxiliary agents to enhance the strength and thermal insulation properties of concrete.

Description

technical field [0001] The invention belongs to the technical field of concrete. More specifically, it relates to a self-insulating high-strength environment-friendly concrete and a preparation method thereof. Background technique [0002] Concrete is one of the most important civil engineering materials today. It is composed of cementitious materials, granular aggregates (also known as aggregates), water, and additives and admixtures added when necessary, prepared in a certain proportion, uniformly stirred, densely formed, cured and hardened. artificial stone. Concrete has the characteristics of rich raw materials, low price and simple production process, so its consumption is increasing. At the same time, concrete also has the characteristics of high compressive strength, good durability, and a wide range of strength grades. These characteristics make it widely used, not only in various civil engineering, but also in shipbuilding, machinery industry, marine development...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/08C04B28/04C04B111/40
CPCC04B28/04C04B2111/40C04B2201/32C04B2201/52C04B14/06C04B24/282C04B18/08C04B14/043C04B18/141C04B22/124C04B22/06C04B22/149C04B22/142C04B24/18C04B24/38C04B38/08
Inventor 蔡念明
Owner 蔡念明
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