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

High-ductility cement based composite material and preparation method thereof

A composite material and cement-based technology, which is applied in the field of coatings, can solve the problems of compressive strength decline and imperfection, and achieve the effects of dry shrinkage, good carbonation resistance and low alkali content

Inactive Publication Date: 2017-04-26
SHANGHAI YANGSEN SPECIALITY CHEM
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In actual use, the toughness requirements of ECC materials are very high, but many existing methods for improving the toughness of ECC materials are not perfect, because although the toughness of ECC materials is improved, its compressive strength will decrease

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
  • High-ductility cement based composite material and preparation method thereof
  • High-ductility cement based composite material and preparation method thereof
  • High-ductility cement based composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A high-ductility cement-based composite material, comprising 5% of A component, 10% of B component and 85% of C component, the A component is an emulsion, by weight percentage,

[0057] A component includes:

[0058]

[0059] The B component includes:

[0060] Water-based epoxy curing agent 20%

[0061] Defoamer 1%

[0062] water 79%;

[0063] The C component includes:

[0064]

[0065] The solid content in component A is 70%. The epoxy resin is a mixture of bisphenol A epoxy resin and epoxy diluent. The emulsifier is an octylphenol polyoxyethylene ether series emulsifier, and the thickener is a polyurethane emulsion stabilizer. The water-based epoxy curing agent in component B is a water-based phenalkamine epoxy curing agent. River sand is 30-40 mesh mixed sand. Dry powder defoamer is a special defoamer for dry powder mortar. It is a non-ionic surfactant suitable for dry cement mortar containing liquid hydrocarbons, polyethylene glycol and inorganic carri...

Embodiment 2

[0067] A high-ductility cement-based composite material, comprising 10% of A component, 10% of B component and 80% of C component, by weight percentage,

[0068] A component includes:

[0069]

[0070] The B component includes:

[0071] Waterborne epoxy curing agent 39%

[0072] Defoamer 0.1%

[0073] Water 60.1%;

[0074] The C component includes:

[0075]

[0076] The solid content in component A is 50%. The epoxy resin is a mixture of bisphenol A epoxy resin and epoxy diluent. The emulsifier is an octylphenol polyoxyethylene ether series emulsifier, and the thickener is a polyurethane emulsion stabilizer. The water-based epoxy curing agent in component B is a water-based phenalkamine epoxy curing agent. River sand is 80-100 mesh mixed sand. Dry powder defoamer is a special defoamer for dry powder mortar. It is a non-ionic surfactant suitable for dry cement mortar containing liquid hydrocarbons, polyethylene glycol and inorganic carriers. The water reducer is ...

Embodiment 3

[0078] A high ductility cement-based composite material, comprising 7% of A component, 11% of B component and 82% of C component, by weight percentage,

[0079] A component includes:

[0080]

[0081]

[0082] The B component includes:

[0083] Water-based epoxy curing agent 30%

[0084] Defoamer 0.5%

[0085] Water 69.5%;

[0086] The C component includes:

[0087]

[0088] The solid content in component A is 60%. The epoxy resin is a mixture of bisphenol A epoxy resin and epoxy diluent. The emulsifier is an octylphenol polyoxyethylene ether series emulsifier, and the thickener is a polyurethane emulsion stabilizer. The water-based epoxy curing agent in component B is a water-based phenalkamine epoxy curing agent. River sand is 80-100 mesh mixed sand. Dry powder defoamer is a special defoamer for dry powder mortar. It is a non-ionic surfactant suitable for dry cement mortar containing liquid hydrocarbons, polyethylene glycol and inorganic carriers. The water...

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 high-ductility cement based composite material and a preparation method thereof. The high-ductility cement based composite material comprises a component A, a component B and a component C, wherein the component A comprises epoxy resin, emulsifier water, and a thickener; the component B comprises a waterborne epoxy curing agent, a defoaming agent and water; and the component C comprises 52.5 white cement, river sand, a defoaming agent, a water reducer and an expanding agent. The high-ductility cement based composite material disclosed by the invention is low in content of chlorine ions and alkali, which is beneficial for durability of concrete. The production process of the composite material is pollution-free, and the composite material does not contain formaldehyde, meets an international standard of ISO 14000 environmental protection management, and is a green and environment-friendly product. While the compression strength is ensured, the toughness of the product can be improved.

Description

technical field [0001] The invention relates to the technical field related to coatings, in particular to a high-ductility cement-based composite material and a preparation method thereof. Background technique [0002] ECC (Engineered Cementitious Composites) material is a high-ductility fiber-reinforced cement-based composite material. It is a new type of civil engineering material with pseudo-strain hardening characteristics and multi-slit cracking characteristics optimized based on micromechanics principles. Among them, the volume content of polyvinyl alcohol fiber (PVA) is usually about 2%, the tensile strain of ECC is 2% to 5%, which is several hundred times that of ordinary concrete, and the compressive strength can be as high as 70~ 80MPa. [0003] The high tensile strain capacity of ECC material is based on its ability to form "steady state cracking" during tension. "Steady state cracking" means that when the tensile strain exceeds 1%, the crack width in the ECC wi...

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): C04B28/04
CPCC04B28/04C04B14/068C04B24/32C04B24/282C04B24/281C04B24/121C04B2103/50C04B2103/302C04B22/142Y02A30/30
Inventor 杨成陈辉于昆王会
Owner SHANGHAI YANGSEN SPECIALITY CHEM
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