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

A kind of modified steel fiber reinforced concrete for bridge pouring

A bridge pouring and steel fiber technology is applied in the field of bridge pouring, which can solve the problems of difficulty in improving the quality of steel fiber concrete, little improvement in strength, and fiber agglomeration and sinking. The effect of improving the surface acid and alkali resistance

Active Publication Date: 2020-08-28
杭州汉特建材有限公司
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the above existing defects, the quality of the existing steel fiber concrete is difficult to be improved; cracks are prone to appear, the strength has a certain strength but the strength is not improved much, and the phenomenon of fiber agglomeration and sinking often occurs. The invention provides a modified Concrete for steel fiber reinforced bridge pouring and preparation method thereof

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A modified steel fiber reinforced concrete for bridge pouring and its manufacturing method is characterized in that it comprises the following parts by weight: 100 parts of raw cement, 12 parts of diatomite, 7 parts of magnesium oxide, 5 parts of calcium carbide slag, 7 parts of magnesium chloride, red 3 parts of mud, 120 parts of sand, 90 parts of gravel, 5 parts of modified steel fiber, 1 part of water reducer, 0.8 part of defoamer, 4 parts of fiber dispersant, 40 parts of water,

[0036] The steel fiber reinforced bridge pouring concrete manufacturing method comprises the following steps:

[0037] Step 1: Soak the steel fiber in polyethyleneimine solution for 12-18 hours, put it in a dryer after soaking and dry it at 50-60°C for 30 minutes, and set it aside;

[0038] Step 2: Mix 7 parts of urethane acrylate, 4 parts of geranyl acetate, 1 part of diisocyanate, 2 parts of benzophenone, and 50 parts of ethanol to obtain a UV-curable modification solution. The steel fibe...

Embodiment 2

[0045] A modified steel fiber reinforced concrete for bridge pouring and its manufacturing method is characterized in that it comprises the following parts by weight: 100 parts of raw cement, 10 parts of diatomite, 5 parts of magnesium oxide, 7 parts of calcium carbide slag, 7 parts of magnesium chloride, red 2 parts of mud, 120 parts of sand, 100 parts of gravel, 6 parts of modified steel fiber, 1 part of water reducer, 1 part of defoamer, 3 parts of fiber dispersant, 45 parts of water,

[0046] The steel fiber reinforced bridge pouring concrete manufacturing method comprises the following steps:

[0047] Step 1: Soak the steel fiber in polyethyleneimine solution for 12-18 hours, put it in a dryer after soaking and dry it at 50-60°C for 30 minutes, and set it aside;

[0048] Step 2: Mix 9 parts of urethane acrylate, 4 parts of geranyl acetate, 1 part of diisocyanate, 3 parts of benzophenone, and 60 parts of ethanol to obtain a UV-curable modified solution. The steel fiber obt...

Embodiment 3

[0055] A modified steel fiber reinforced concrete for bridge pouring and its manufacturing method is characterized in that it comprises the following parts by weight: 100 parts of raw cement, 18 parts of diatomite, 7 parts of magnesium oxide, 8 parts of calcium carbide slag, 6 parts of magnesium chloride, red 5 parts of mud, 110 parts of sand, 80 parts of gravel, 4 parts of modified steel fiber, 2 parts of water reducer, 0.5 part of defoamer, 5 parts of fiber dispersant, 50 parts of water,

[0056] The steel fiber reinforced bridge pouring concrete manufacturing method comprises the following steps:

[0057] Step 1: Soak the steel fiber in polyethyleneimine solution for 12-18 hours, put it in a dryer after soaking and dry it at 50-60°C for 30 minutes, and set it aside;

[0058] Step 2: Mix 10 parts of urethane acrylate, 2 parts of geranyl acetate, 2 parts of diisocyanate, 2 parts of benzophenone, and 50 parts of ethanol to obtain a UV-curable modified solution. The steel fiber...

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
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses concrete for casting of a modified steel fiber enhanced bridge. The preparation method of concrete comprises steps as follows: step 1, steel fiber is soaked in a polyethyleneimine solution for 12-18 h and dried in a drier at the temperature of 50-60 DEG C for 30 min for later use; step 2, 5-10 parts of polyurethane acrylate, 2-4 parts of geranyl acetate, 1-2 parts of diisocyanate, 2-3 parts of benzophenone and 20-60 parts of ethanol are mixed uniformly, a ultraviolet curing modification solution is obtained, and steel fiber obtained in the step 1 is put in the ultraviolet curing modification solution to be soaked for 20-30 min, fished out and spread. The acid resistance and the alkaline resistance of the surface of the modified steel fiber are effectively improved after modification, rusting in the long-time use process is not easily caused, the adhesion with a hydraulic material is improved, the fiber is not prone to settling at the lower part of the concrete after a fiber dispersant is used, the fiber is uniformly distributed, and the fiber enhancing function is higher through the uniformly distributed fiber spaces.

Description

technical field [0001] The invention relates to modified steel fiber reinforced concrete for bridge pouring, which belongs to the field of bridge pouring. Background technique [0002] At present, fiber reinforced concrete is high elastic modulus short fiber reinforced concrete, and its representative fiber is steel fiber. Because steel fibers can retard the development of cracks in matrix concrete, the alkali and acid resistance of steel fiber reinforced concrete is also poor. However, steel fibers often have fiber agglomeration and sinking during the concrete mixing process. Concrete strength has always been the main performance index of concrete as an important structural material, and the quality of existing steel fiber concrete is difficult to improve; cracks are prone to occur, and the strength There is a certain strength but not much improvement. Contents of the invention [0003] In order to overcome the above existing defects, the quality of the existing steel f...

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): C04B28/04C04B24/42C04B20/12C04B14/48C04B103/40
CPCC04B14/48C04B20/12C04B28/04C04B40/0039C04B2103/408C04B2201/50C04B14/08C04B22/066C04B18/0481C04B22/124C04B18/0409C04B14/06C04B14/02C04B2103/302C04B2103/50C04B22/002C04B24/32C04B24/00C04B24/085C04B24/023C04B24/06C04B24/42
Inventor 郑亮
Owner 杭州汉特建材有限公司
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