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

Carbon fiber reinforced cement-based composite for 3D printing technology

A technology for strengthening cement and composite materials, applied in the field of 3D printing materials, it can solve problems such as poor fluidity, high brittleness, and self-weight, and achieve the effect of improving mechanical properties, high strength, and high surface quality

Inactive Publication Date: 2017-01-04
上海闵轩钢结构工程有限公司
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a carbon fiber reinforced cement-based composite material for 3D printing technology, which has high strength and strong plasticity, and solves the problem that the existing ordinary cement-based materials have high brittleness, heavy weight, poor fluidity and are not suitable for 3D printing process. technical issues

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
  • Carbon fiber reinforced cement-based composite for 3D printing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Take the production of a pitch-based carbon fiber reinforced cement-based composite material as an example. The composition ratio of the calcium sulfoaluminate modified Portland cement in this example is: 70.5% limestone; 12.5% ​​aluminum ore tailings; 1.0% sandstone; 6.5% industrial waste gypsum; 9.5% fly ash.

[0030] The preparation method of above-mentioned 3D printing material is:

[0031] Step 1. Dissolve methylcellulose accounting for 0.6% of the cement mass in warm water, stir evenly for 2-3 minutes to disperse it, and then add chopped asphalt accounting for 2.0% of the total volume of the carbon fiber reinforced cement-based composite material base carbon fiber, continue to stir evenly for 3-4 minutes;

[0032] Step 2, preparing calcium sulfoaluminate modified Portland cement according to the mass ratio of the components of the above cement-based matrix;

[0033] Step 3: Mix uniformly stirred carbon fiber and methyl cellulose with calcium sulfoaluminate modif...

Embodiment 2

[0035] Take the production of a pitch-based carbon fiber reinforced cement-based composite material as an example. The composition ratio of the calcium sulfoaluminate modified Portland cement in this example is: limestone 71.5%; aluminum ore tailings 11.5%; sandstone 0.5%; industrial waste gypsum 6.5%; fly ash 10.5%.

[0036] The preparation method of above-mentioned 3D printing material is:

[0037] Step 1. Dissolve methyl cellulose accounting for 0.6% of the cement mass in warm water, stir evenly for 2-3 minutes to disperse it, and then add chopped asphalt accounting for 4.0% of the total volume of the carbon fiber reinforced cement-based composite material base carbon fiber, continue to stir evenly for 3-4 minutes;

[0038] Step 2, preparing calcium sulfoaluminate modified Portland cement according to the mass ratio of the components of the above cement-based matrix;

[0039] Step 3: Mix uniformly stirred carbon fiber and methyl cellulose with calcium sulfoaluminate modif...

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

No PUM Login to View More

Abstract

The invention discloses a carbon fiber reinforced cement-based composite for 3D printing technology. The carbon fiber reinforced cement-based composite is formed by dispersant, carbon fiber and cement-based matrix, wherein the carbon fiber is short-cutting pitch-based carbon fiber, and the cement-based matrix comprises concrete, mineral fine particles, fine sand, additives and mixing water, wherein the concrete is calcium sulphoaluminate modified portland cement. The carbon fiber reinforced cement-based composite for 3D printing technology has the excellent functions of being high in specific strength, low in density and short in coagulation time, and can meet higher requirements of 3D printing technology for the performance and applicability of materials. Meanwhile, the calcium sulphoaluminate modified portland cement used in the cement matrix not only has a series of excellent properties of portland cement, but also has the advantages of sulphate aluminium cement, such as rapid hydration and hardening, high early strength, small volume contraction when hardening and good durability, and has the vital practical significance on energy conservation, emission reduction, environmental protection and the like.

Description

technical field [0001] The invention relates to a 3D printing material, in particular to a carbon fiber reinforced cement-based composite material used in 3D printing technology. Background technique [0002] 3D printing technology is a manufacturing technology that is quite different from traditional manufacturing technologies such as subtractive manufacturing and isomaterial manufacturing. It is based on the three-dimensional data of the model, extruding materials through the printer nozzle, and printing and increasing materials layer by layer to generate 3D entities. technology, so it is also called additive manufacturing. Compared with traditional subtractive manufacturing, 3D printing can not only improve material utilization, but also produce more complex products in a shorter time. The most prominent advantage of 3D printing technology is that it can directly generate parts of any shape from computer graphics data without machining or any molds, thereby greatly short...

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): C04B28/06C04B7/345C04B14/38
CPCC04B28/065C04B7/345C04B14/386C04B24/383
Inventor 夏学云
Owner 上海闵轩钢结构工程有限公司
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