Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A fast-hardening and early-strength composite repair mortar

A repairing mortar and early-strength technology, applied in the field of building materials, can solve the problems of low bonding strength, large dry shrinkage, shrinkage of repairing mortar strength, etc., and achieve strong adhesion, dry shrinkage, and improved water retention. Effect

Active Publication Date: 2021-06-11
长春昌驰新材料科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a fast-hardening and early-strength composite repair mortar, which solves the problems of repair mortar strength shrinkage, large drying shrinkage and low bonding strength in the prior art

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 fast-hardening and early-strength composite repair mortar
  • A fast-hardening and early-strength composite repair mortar
  • A fast-hardening and early-strength composite repair mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A rapid-hardening and early-strength composite repair mortar, consisting of the following components in weight percentage:

[0034] Water 5%, cement 20%, silica fume 1%, fly ash 2%, quartz sand 70% (coarse sand 25%, medium sand 25%, fine sand 20%), composite early strength agent 0.4% (A component : Nano calcium carbonate whisker 0.21%, B component: triisopropanolamine: 0.01% and aluminum sulfate: 0.22%), water reducing agent 0.06%, rubber powder 1.48%, hybrid fiber 0.06% (basalt fiber 0.05%, polypropylene fiber 0.01%), the particle diameter of coarse sand is 2.36-4.75mm, the particle diameter of medium sand is 1.18-2.36mm, and the particle diameter of fine sand is 0.6-1.18mm.

[0035] Its preparation method comprises the following steps:

[0036] S1. According to the above formula of a fast-hardening and early-strength composite repair mortar, weigh each component for later use;

[0037] S20: mechanically milling and activating the fly ash to a particle size of 200 me...

Embodiment 2

[0047] A rapid-hardening and early-strength composite repair mortar, consisting of the following components in weight percentage:

[0048] Water 7.29%, cement 22.25%, silica fume 2.47%, fly ash 1.3%, quartz sand 65.05% (coarse sand: 25.13%; medium sand: 21.16%; fine sand 18.76%), composite early strength agent 0.44% (A Components: nano calcium carbonate whiskers 0.21%, B component: triisopropanolamine 0.01%, aluminum sulfate 0.22%), water reducing agent 0.08%, rubber powder 1.05%, hybrid fiber 0.07% (basalt fiber 0.06%, Polypropylene fiber 0.01), the particle size of coarse sand is 2.36-4.75mm, the particle size of medium sand is 1.18-2.36mm, and the particle size of fine sand is 0.6-1.18mm.

[0049] Its preparation method comprises the following steps:

[0050] S1. According to the above formula of a fast-hardening and early-strength composite repair mortar, weigh each component for later use;

[0051] S20: mechanically milling and activating the fly ash to a particle size ...

Embodiment 3

[0061] A rapid-hardening and early-strength composite repair mortar, consisting of the following components in weight percentage:

[0062] Water 6.79%, cement 20.75%, silica fume 2.31%, fly ash 1.21%, quartz sand 67.41% (coarse sand: 26.04%; medium sand: 21.92%; fine sand 19.44%), composite early strength agent 0.42% (A Components: nano calcium carbonate whiskers 0.20%, B component: triisopropanolamine: 0.01% and aluminum sulfate: 0.21%), water reducer 0.07%, rubber powder 0.97%, hybrid fiber 0.07% (basalt fiber 0.06 %, polypropylene fiber 0.01), the particle size of coarse sand is 2.36-4.75mm, the particle size of medium sand is 1.18-2.36mm, and the particle size of fine sand is 0.6-1.18mm.

[0063] Its preparation method comprises the following steps:

[0064] S1. According to the above formula of a fast-hardening and early-strength composite repair mortar, weigh each component for later use;

[0065] S20: mechanically milling and activating the fly ash to a particle size ...

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
particle diameteraaaaaaaaaa
particle size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of building materials, and proposes a fast-hardening and early-strength composite repair mortar, which is composed of the following components in weight percent: 5% to 10% of water, 20% to 30% of cement, and 1% to 5% of silica fume. %, fly ash 1% to 5%, quartz sand 50% to 70%, composite early strength agent 0.4% to 0.5%, water reducing agent 0.06% to 0.1%, rubber powder 1% to 5%, mixed fiber 0.06% ~0.8%, the composite early strength agent is composed of A component and B component, the A component is nano-calcium carbonate whiskers, and the B component is a mixture of triisopropanolamine and aluminum sulfate, so The quartz sand is composed of coarse sand, medium sand and fine sand, and the hybrid fiber is composed of basalt fiber and polypropylene fiber. The invention solves the problems in the prior art that the strength of the repair mortar shrinks back, the dry shrinkage rate is large, and the bonding strength is low.

Description

technical field [0001] The invention belongs to the technical field of building materials and relates to a fast-hardening and early-strength composite repair mortar. Background technique [0002] As the main building material, cement concrete has played an irreplaceable role in my country's infrastructure construction, especially in road construction. As one of the two high-grade pavements in my country, cement concrete pavement has been widely used in road construction in my country due to its high rigidity, strong bearing capacity, low cost, and convenient construction. However, with the development of society, the road transportation volume has increased sharply. The cement concrete pavement has been crushed and worn by vehicles for a long time, and the road surface has been damaged to varying degrees, especially the frequent occurrence of heavy and overloaded vehicles, which has accelerated the road damage. speed. Therefore, the repair of existing cement concrete pavem...

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): C04B28/00
CPCC04B28/00C04B2111/72C04B2201/50C04B2201/52C04B18/146C04B18/08C04B24/122C04B22/148C04B16/0633C04B14/4643C04B14/06C04B14/383C04B18/22C04B2103/302
Inventor 肖力光张洪磊齐凤梅李根壮林侠
Owner 长春昌驰新材料科技有限公司
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
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