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Concrete utilizing industrial solid waste and preparation method thereof

A solid waste and concrete technology, applied in the field of concrete, can solve the problems of concrete thermal conductivity and compressive strength to be improved, rubber particle density is small, thermal insulation performance decline, etc., to improve interface compatibility, improve compatibility, The effect of improving the bonding performance

Inactive Publication Date: 2021-04-06
陕西天皓万业混凝土工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] For the above-mentioned related technologies, the density of rubber particles is small, and it is easy to float up when directly added to concrete, resulting in uneven distribution, lower thermal insulation performance, and a sharp drop in compressive strength. The inventor believes that the thermal conductivity and compressive strength of concrete need to be improved.

Method used

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  • Concrete utilizing industrial solid waste and preparation method thereof
  • Concrete utilizing industrial solid waste and preparation method thereof

Examples

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preparation example 1

[0040] Modified waste polyurethane particles, its preparation method is as follows: 50kg cement, 2kg782 type cement quick-setting agent and 10kg bamboo fiber are added to 20kg water, stir evenly, the length of bamboo fiber is 4mm, and diameter is 10 μ m, obtains modified slurry; 100kg of waste polyurethane particles were added to the modified slurry. The particle diameter of the waste polyurethane particles was 8 mm. The waste polyurethane particles were made by crushing waste polyurethane products. The polyurethane products used in this embodiment were polyurethane shoe soles. After stirring evenly, remove Take out the waste polyurethane particles and place them flat on the smooth ground to separate the waste polyurethane particles. After drying, collect the waste polyurethane particles and sieve to remove the fallen cement powder. After curing in the curing room for 20 hours, put them in tap water for curing for 48 hours, and take them out. The waste polyurethane particles ar...

preparation example 2

[0042] Modified waste polyurethane particles, its preparation method is as follows: 55kg cement, 2.5kg cement quick-setting agent and 12kg Achnatherum splendens fiber are added to 25kg water, stir evenly, the length of Achnatherum splendens fiber is 4mm, and diameter is 10 μ m, obtains modified slurry; Add 100kg of waste polyurethane particles into the modified slurry. The particle diameter of the waste polyurethane particles is 9mm. The waste polyurethane particles are made by crushing waste polyurethane products. The polyurethane products used in this embodiment are polyurethane shoe soles. After stirring evenly, remove Take out the waste polyurethane particles and place them flat on the smooth ground to separate the waste polyurethane particles. After drying, collect the waste polyurethane particles and sieve to remove the fallen cement powder. After curing in the curing room for 22 hours, put them in tap water for curing for 44 hours, and take them out. The waste polyuretha...

preparation example 3

[0044]Modified waste polyurethane particles, its preparation method is as follows: 60kg cement, 3kg cement quick-setting agent and 15kg Achnatherum splendens fiber are added to 30kg water, stir evenly, the length of Achnatherum splendens fiber is 3mm, and diameter is 15 μ m, obtains modified slurry; Add waste polyurethane particles into the modified slurry. The particle size of waste polyurethane particles is 10 mm. Waste polyurethane particles are made by crushing waste polyurethane products. The polyurethane products used in this example are polyurethane shoe soles. After stirring evenly, fish out Put the waste polyurethane particles flat on the smooth ground to separate the waste polyurethane particles. After drying, collect the waste polyurethane particles and sieve to remove the fallen cement powder. After curing in the curing room for 24 hours, put them in tap water for curing for 40 hours, and take them out for disposal. The polyurethane particles are dried to obtain mod...

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Abstract

The invention relates to the field of concrete, and particularly discloses concrete utilizing industrial solid waste and a preparation method of the concrete, and the concrete utilizing the industrial solid waste is prepared from the following raw materials in parts by weight: 260-270 parts of cement; 45-55 parts of fly ash; 35-45 parts of mineral powder; 710-720 parts of fine sand; 990-1000 parts of broken stone; 10-12 parts of a water reducing agent; 140-160 parts of water; and 100-150 parts of modified waste polyurethane particles; wherein the modified waste polyurethane particles are obtained by coating the surfaces of waste polyurethane particles with modified slurry and curing, and the modified slurry is prepared from cement, a cement accelerator, plant fibers and water. The concrete has the advantage that the thermal insulation property and compressive strength of the concrete are improved.

Description

technical field [0001] The present application relates to the field of concrete, and more specifically, it relates to a concrete utilizing industrial solid waste and a preparation method thereof. Background technique [0002] Concrete, referred to as concrete for short, refers to the collective name of engineering composite materials in which aggregates are cemented into a whole by cementitious materials. The term concrete usually refers to the cement concrete obtained by mixing cement with cement as cementing material, sand and stone as aggregate and water (may contain admixtures and admixtures) in a certain proportion, also known as ordinary concrete. , which is widely used in civil engineering. [0003] According to related technologies, adding rubber particles to ordinary concrete can reduce the thermal conductivity of concrete, improve the thermal insulation performance of concrete, and reduce the compressive strength of concrete. [0004] In view of the related techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B20/10C04B20/02C04B18/20C04B18/24
CPCC04B28/00C04B20/1077C04B20/023C04B2201/32C04B2201/50Y02W30/91
Inventor 吕江江李莉石彬彬魏旭艳
Owner 陕西天皓万业混凝土工程有限责任公司
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