Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of high-strength permeable concrete and preparation method thereof

A permeable concrete and high-strength technology, applied in the field of building materials, can solve the problems of low compressive strength and a large number of structural cracks in concrete, and achieve the effect of improving fracture toughness, high hardness, compressive strength and crack resistance

Active Publication Date: 2022-06-07
北京民佳混凝土有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that although the ceramsite made of coal gangue is light in weight and has good air permeability, after the light permeable concrete is hardened, its compressive strength is low due to the large number of internal pores , when subjected to external force, a large number of structural cracks are prone to appear inside the concrete

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of high-strength permeable concrete and preparation method thereof
  • A kind of high-strength permeable concrete and preparation method thereof
  • A kind of high-strength permeable concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1-5

[0045] Boron carbide in preparation example 1-5 was selected from Hebei Yangming Metal Material Co., Ltd., the model is NYT-B4C-1, and the average particle size is 60nm; Nano titanium dioxide is selected from Jiangsu Tianxing New Materials Co., Ltd., the stock number is A12; Graphite powder is selected from Guangdong Yongyao Graphite Technology Co., Ltd., model is YY-04; Alumina is selected from Zibo Yinhan Special Alumina Co., Ltd., model A318.

preparation example 1

[0046] Preparation Example 1: (1) 2kg of boron carbide and 1kg of nano titanium dioxide were dried at 110 °C for 24 h, then mixed with graphite powder, mixed at 50Pa, 1800 °C for 2h under an inert atmosphere, cooled to room temperature, the mass ratio of graphite powder to nano titanium dioxide was 3.5:1;

[0047] (2) Add 5kg of alumina to 10kg of deionized water, stir evenly, dry at 100 °C for 4h, then heat up to 200 °C / h at a heating rate of 200 °C / h, keep warm for 1h, then heat up to 700 °C at a rate of 175 °C / h, keep warm for 3h, cool down to room temperature, crush, pass through a 60 mesh sieve to obtain α- alumina spherical granules;

[0048](3) The proceeds of step (1) and the proceeds of step (2) are mixed evenly, grinded at a speed of 200r / min for 5h, kept warm at 1450 °C and 24MPa for 15min, cooled to room temperature, crushed, sieved, and prepared a reinforcing agent, and the mass ratio of the obtained substances and the obtained substances of step (1) and step (2) is 0...

preparation example 2

[0049] Preparation Example 2: (1) 2.3kg boron carbide and 1.15kg nano titanium dioxide are dried at 110 °C for 24h, then mixed with graphite powder, mixed at 60Pa, 1700 °C for 1h under an inert atmosphere, cooled to room temperature, the mass ratio of graphite powder to nano titanium dioxide is 4:1;

[0050] (2) Add 5.5kg of alumina to 11kg of deionized water, stir evenly, dry at 110 °C for 3.5h, then heat up to 220 °C / h at a heating rate of 220 °C, keep warm for 1h, and then heat up to 750 °C at a rate of 190 °C / h, keep warm for 3h, cool down to room temperature, crush, through a 60 mesh sieve to obtain α-alumina spherical particles;

[0051] (3) The proceeds of step (1) and the proceeds of step (2) are mixed evenly, grinded at a speed of 250r / min for 4.5h, kept warm for 13min at 1500 °C and 27MPa, cooled to room temperature, crushed, sieved, and prepared to enhance the agent, and the mass ratio of the obtained substances of step (1) and the obtained substances of step (2) is 0.2...

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
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The application relates to the field of building materials, and specifically discloses a high-strength permeable concrete and a preparation method thereof. High-strength permeable concrete includes the following components by weight: 200-240 parts of cement, 1300-1600 parts of coarse aggregate, 70-110 parts of mineral powder, 50-70 parts of fly ash, 8.5-25.2 parts of admixture, and 100-parts of water 125 parts, 5-10 parts of toughening fiber, 10-20 parts of reinforcing agent; The reinforcing agent described in every part by weight is made of raw materials comprising the following parts by weight: 5-6 parts of aluminum oxide, 1-1.25 parts of nano-titanium dioxide and 2 ‑2.5 parts of boron carbide; the high-strength permeable concrete of the present application has the advantages of large water permeability coefficient, high compressive strength and flexural strength, and strong heat resistance.

Description

Technical field [0001] The present application relates to the technical field of building materials, more specifically, it relates to a high strength permeable concrete and a method of preparation thereof. Background [0002] Permeable concrete is a new type of concrete born to make up for the impermeability of ordinary concrete, which has permeability and breathability, which can alleviate urban waterlogging and heat island effects, so permeable concrete as an environmentally friendly concrete has received widespread attention. [0003] In the prior art, the Chinese invention patent document no. 201510805358.6 discloses a lightweight permeable concrete containing ceramic particles, the composition of the lightweight permeable concrete and the unilateral dosage ratio kg / m 3 As follows: mixed water 130-150, cement 410-450, ceramic particles 990-1000, admixture 1.11-1.80, the ceramic particles are particle size 5mm-10mm continuously graded gangue pottery particles, the grain type...

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 Patents(China)
IPC IPC(8): C04B28/04C04B20/12C04B20/00
CPCC04B28/04C04B20/12C04B20/0068C04B2111/00284C04B2111/00008C04B2201/50C04B18/023C04B18/12C04B18/08C04B2103/302C04B2103/304C04B24/383C04B24/281C04B14/303C04B20/1066C04B20/1055C04B18/248C04B16/0633C04B14/024C04B24/04Y02W30/91
Inventor 谢玲丽
Owner 北京民佳混凝土有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com