A kind of strain hardening powder concrete and its preparation method and its application in bridge construction
A technology of powder concrete and strain hardening, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of difficult construction, insufficient tensile strain, etc., and achieve the effect of improving reactivity, improving dispersion, and promoting full interaction
Active Publication Date: 2022-05-31
JIANGSU SOBUTE NEW MATERIALS +1
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In order to solve the problems of insufficient tensile strain and difficult construction of existing pavement materials, the present invention provides a strain-hardening powder concrete, which realizes an efficient synergistic mechanism between matrix and fiber, realizes tensile strain hardening, and copes with large fatigue deformation of steel bridge decks. It can significantly improve the construction performance and service performance without changing the bearing capacity of the composite structure
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
Embodiment 2
Embodiment 3
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
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| length | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a kind of strain hardening powder concrete, and its composition comprises the following components: cement admixture, fine aggregate, interface strengthening agent, nano reinforcement, zinc phosphate modified steel fiber, water; The strain hardening powder concrete Realize the efficient synergistic mechanism of matrix and fiber, realize tensile strain hardening, deal with the characteristics of large fatigue deformation of steel bridge deck, and significantly improve construction performance and service performance without changing the bearing capacity of the composite structure.
Description
A strain hardening powder concrete and its preparation method and its use in bridge construction application technical field The invention belongs to technical field of building materials, particularly a kind of strain hardening reactive powder concrete and preparation thereof Method and its application in bridge construction. Background technique Orthotropic steel bridge deck is widely used by domestic and foreign large-span due to its advantages such as light weight, convenient erection and short construction period. Widely used in steel bridges. However, the existing pavement is easily damaged and the bridge deck is prone to fatigue cracking, which has become an orthotropic steel bridge deck. The engineering problems of the board, the annual maintenance costs are countless. The main reason for this phenomenon is that the pavement material resists Low tensile strength and poor toughness lead to structural cracking and non-ductile failure, and its poor toughness...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04E01D19/12
CPCC04B28/04E01D19/125E01D2101/24C04B2201/50C04B2201/52C04B18/08C04B18/146C04B18/141C04B14/06C04B14/48C04B22/16C04B2103/0068Y02W30/91
Inventor 韩方玉刘建忠万赟林玮张丽辉沙建芳刘加平
Owner JIANGSU SOBUTE NEW MATERIALS