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

Geopolymer permeable brick and preparation method thereof

A technology of geopolymers and permeable bricks, applied in cement production, etc., can solve problems affecting performance, complicated process, pressure, etc., and achieve the effects of no pressure forming, low energy consumption for preparation, and simple process

Active Publication Date: 2017-11-17
CHINA UNIV OF GEOSCIENCES (WUHAN)
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, common pavement permeable bricks mainly include sintered ceramic permeable bricks, polymer permeable bricks and cement permeable bricks. Sintered ceramic permeable bricks have problems such as high cost, high energy consumption, and greenhouse gas emissions; The cost of permeable bricks is high, and the resin will age after being exposed to the sun and rain for a long time, which not only affects the performance, but also pollutes the environment; although the cement-type permeable bricks have better overall performance, some products need to be pressurized, and the process is relatively complicated. complex

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
  • Geopolymer permeable brick and preparation method thereof
  • Geopolymer permeable brick and preparation method thereof
  • Geopolymer permeable brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An embodiment of the present invention provides a geopolymer permeable brick, including a base layer and a finishing layer, the base layer includes aggregate A, cementitious material A and an activator, and the decorative layer includes aggregate B, cementitious material B and stimulator.

[0028] The mass fraction of aggregate A is 78% to 84%. Aggregate A is graded by crushed stones of two particle sizes. One crushed stone has a particle size of 4.75-9.5mm and a mass fraction of 55% to 65%. ; Another crushed stone has a particle size of 9.5-15mm and a mass fraction of 35%-45%.

[0029] The mass fraction of the cementitious material A is 16%-24%. The cementitious material A is uniformly mixed with fly ash and slag. The mass fraction of the fly ash is 10%-14%. The mass fraction of the slag is 6% to 8%. The fly ash is fluidized bed fly ash, and the slag is granulated blast furnace slag.

[0030] The sum of the mass fractions of the aggregate A and the cementitious mate...

Embodiment 2

[0044] The embodiment of the present invention provides a geopolymer permeable brick, and the raw material composition of the permeable brick is as follows:

[0045]

[0046] Please refer to figure 1 , a preparation method of geopolymer permeable brick, comprising the following steps:

[0047] (1) prepare activator, dissolve 1.05kg sodium hydroxide in 7.67kg water glass, after stirring until sodium hydroxide dissolves completely, promptly make activator, be cooled to normal temperature, for subsequent use;

[0048] (2) Put 20.28kg of 4.75-9.5mm crushed stone and 10.92kg of 9.5-15mm crushed stone into the concrete mixer, mix and stir for 1min; add 5.6kg of fly ash and 3.2kg of slag into the concrete mixer, and mix with the graded Mix and stir for 1 minute, then add 8.0 kg of activator, and mix and stir for 3 minutes to obtain the base material for preparing geopolymer permeable bricks; the fly ash is fluidized bed fly ash, and the slag is granulated blast furnace slag;

[00...

Embodiment 3

[0055] The embodiment of the present invention provides a geopolymer permeable brick, and the raw material composition of the permeable brick is as follows:

[0056]

[0057] Please refer to figure 1 , a preparation method of geopolymer permeable brick, comprising the following steps:

[0058] (1) prepare activator, dissolve 0.71kg sodium hydroxide in 5.17kg water glass, after stirring until sodium hydroxide dissolves completely, promptly make activator, be cooled to normal temperature, for subsequent use;

[0059] (2) Add 18.9kg of crushed stones of 4.75-9.5mm and 12.6kg of crushed stones of 9.5-15mm into the concrete mixer, mix and stir for 1min; add 3.75kg of fly ash and 2.25kg of slag into the concrete mixer, and mix Mix and stir for 1 min, then add 5.4 kg of activator, and mix and stir for 3 min to obtain the base material for preparing geopolymer permeable bricks; the fly ash is fluidized bed fly ash, and the slag is granulated blast furnace slag;

[0060] (3) Pour ...

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 sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a geopolymer permeable brick, which comprises a base layer and a decorative layer. The base layer comprises aggregate A, a gelling material A, and an exciting agent. The decorative layer comprises aggregate B, a gelling material B, and an exciting agent. The invention further provides a preparation method of the geopolymer permeable brick. The provided geopolymer permeable brick has the advantages that the sintering is not needed; the preparation energy consumption is low; the moulding can be carried out without pressure; the technology is simple, and a large amount of solid waste is consumed. The 28d compression strength of the permeable brick is 32.3 MPa or more. The 28d rupture strength is 3.18 MPa or more. The permeation coefficient is 0.028 cm / s or more.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a geopolymer permeable brick and a preparation method thereof. Background technique [0002] The traditional urban construction model is full of hardened roads. Whenever there is heavy rain, drainage is mainly relied on "grey" facilities such as pipes, canals, and pumping stations. The main planning and design concepts are "quick drainage" and "end-centralized" control, which often results in waterlogging every rain, and sudden changes in drought and flood. In recent years, the problem of urban waterlogging has become increasingly prominent. After heavy rains, many large cities have serious water accumulation. Therefore, the state vigorously advocates the construction of sponge cities, and has successively established 30 pilot cities to speed up the construction of sponge cities. [0003] Permeable bricks were first born in the Netherlands. After systematic research ...

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
IPC IPC(8): C04B28/00
CPCC04B28/006C04B2111/00284C04B2111/00612C04B2201/50C04B14/02C04B14/06Y02P40/10
Inventor 段平武悦悦严春杰周伟浦嵩
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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