High-strength thermal insulation concrete and preparation method thereof

An insulating concrete, high-strength technology, applied in ceramic products, other household appliances, applications, etc., can solve the problems of no effect on the thermal insulation performance of concrete, poor compressive strength of foam concrete, poor compressive capacity of concrete, etc. The effect of improving thermal performance, reducing heat transfer rate, and improving thermal insulation performance

Active Publication Date: 2019-06-04
万宁嘉德兴盛建材有限责任公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Concrete is the most widely used material in civil engineering. However, concrete has disadvantages such as poor compressive capacity, high brittleness, easy water seepage, and poor thermal insulation performance, which makes it easy for water seepage through gaps and heat insulation when houses and other residential buildings are constructed. Poor insulation effect
[0003] In order to achieve high thermal insulation performance in the existing concrete preparation process, concrete is usually prepared as foam concrete, which can achieve high thermal insulation performance, and its thermal conductivity can reach 0.18W / m.K, but the resistance of foam concrete The compressive strength is poor and cannot be used for the load bearing of the building, which in turn affects the life of the building
[0004] In order to improve the strength of concrete in the existing concrete preparation process, polymer binders or polymer fibers are usually added to the concrete to fill the gaps of the concrete through the polymer, reduce the gap ratio of the concrete, and improve the strength of the concrete, but for The thermal insulation performance of concrete has no effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The specific preparation process of the casing volcanic rock is as follows:

[0027] Step 1: Crushing the volcanic rock into gravel particles with a particle size of less than 15mm for use;

[0028] Step 2: Take 2.4kg of polyvinyl alcohol and add it to the stirring tank, heat up to 150-155°C to melt, then add 2.9kg of E44 epoxy resin, 0.8kg of dicumyl peroxide, and 1.7kg of hydroxyl Silicone oil, stir and mix evenly, then evacuate the stirred tank, continue to stir in a vacuum environment, and add 6kg of volcanic stone particles prepared in step 1 to it while stirring, stir and mix for 1-2min, then add 1.4kg to the reactor Add toluene diisocyanate and 0.23kg azodicarbonamide foaming agent, stir for 15-20s after adding, then stop vacuuming, control the temperature of the reactor to rise to 180-185°C, stir while raising the temperature, and raise the temperature to 180-185°C After ℃, keep the temperature constant and stir the reaction for 10-15min, then cool and discharg...

Embodiment 2

[0034] The specific preparation process of the casing volcanic rock is as follows:

[0035] Step 1: Crushing the volcanic rock into gravel particles with a particle size of less than 15mm for use;

[0036] Step 2: Take 2.4kg of polyvinyl alcohol and add it to the stirring tank, heat up to 150-155°C to melt, then add 2.9kg of E44 epoxy resin and 0.8kg of dicumyl peroxide to the polyvinyl alcohol melt, stir and mix evenly , then vacuumize the stirring tank, continue stirring under vacuum environment, and add the volcanic stone particles prepared in 6kg step 1 wherein while stirring, add 1.4kg toluene diisocyanate and 0.23 kg toluene diisocyanate and 0.23 kg of azodicarbonamide foaming agent, stir for 15-20s after adding, then stop vacuuming, control the temperature of the reaction kettle to rise to 180-185°C, stir while raising the temperature, and keep the temperature constant after raising the temperature to 180-185°C Stir and react for 10-15 minutes, then cool and discharge ...

Embodiment 3

[0043] A preparation method of high-strength thermal insulation concrete, the specific preparation process is as follows:

[0044] In the first step, 21kg of river sand, 22kg of perforated volcanic stone prepared in Example 1, 14kg of crushed stone, 12kg of Portland cement, and 1.8kg of fly ash are all added to the concrete mixer and mixed uniformly;

[0045] In the second step, add 8kg of water to the concrete mixer and stir and mix. During the mixing process, add 0.2kg of water reducer and 3.6kg of the self-made foaming adhesive prepared in Example 1, at a speed of 1200-1500r / min Turn and stir for 5-10 minutes to obtain high-strength thermal insulation concrete. After the concrete is prepared, it needs to be used within two hours at room temperature, and it needs to be used within 8 hours when the temperature is lower than 15°C. Otherwise, the self-made foaming adhesive can be used directly when not in use. Foaming, resulting in uneven laying of concrete, and uneven distribu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses high-strength thermal insulation concrete. The invention discloses a high-strength concrete, which comprises the following components in parts by weight: 210-220 parts of riversand, 220-230 parts of trepanning volcanic stone, 140-150 parts of broken stone, 120-125 parts of Portland cement, 18-20 parts of fly ash, 36-41 parts of a self-made foaming adhesive, 2-3 parts of awater reducing agent and 80-90 parts of water. In the concrete preparation process, trepanning volcanic stone is used as aggregate; due to the fact that the trepanning volcanic stone is of a three-layer bubble hole structure, the specific surface area of the trepanning volcanic stone is increased through a layer-by-layer wrapping structure. Along with the increase of the foam holes, more spaces exist in the material, so that the content of air filled in the trepanning volcanic stone is increased, the heat insulation performance of the trepanning volcanic stone is further improved, and the heatinsulation performance of the prepared concrete is further improved. The volcanic stone itself has high compressive strength, and the compressive strength is further increased after the polymer is filled in the pore channels, so that the concrete not only has high heat insulation performance, but also has high compressive strength.

Description

technical field [0001] The invention belongs to the field of concrete preparation, and relates to a high-strength thermal insulation concrete and a preparation method thereof. Background technique [0002] Concrete is the most widely used material in civil engineering. However, concrete has disadvantages such as poor compressive capacity, high brittleness, easy water seepage, and poor thermal insulation performance, which makes it easy for water seepage through gaps and heat insulation when houses and other residential buildings are constructed. The insulation effect is poor. [0003] In order to achieve high thermal insulation performance in the existing concrete preparation process, the concrete is usually prepared as foam concrete, which can achieve high thermal insulation performance, and its thermal conductivity can reach 0.18W / m.K, but the resistance of foam concrete The compressive strength is poor and cannot be used for the load bearing of the building, which in tur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/10C04B38/08C08G8/36C04B24/30C04B20/10C04B14/16
Inventor 不公告发明人
Owner 万宁嘉德兴盛建材有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap