Unlock instant, AI-driven research and patent intelligence for your innovation.

Waste fiber-regenerated concrete as well as preparation method and application thereof

A technology of recycled concrete and waste fibers, which is applied in the field of building materials, can solve the problems of poor hygroscopicity, and achieve the effects of easy water permeability, improved hydrophilicity, and high moisture absorption rate

Active Publication Date: 2021-08-31
YANCHENG INST OF IND TECH
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]Although polyester textiles have the above-mentioned advantages, they also have certain defects. Polyester is the trade name of polyethylene terephthalate fiber. It is a symmetrical benzene ring structure, with good linearity and three-dimensional structure of the macromolecular chain, so that there is only one hydroxyl group at each end of the molecule, no other hydrophilic groups, tight molecular chain structure, high crystallinity and orientation. It is a typical hydrophobic fiber, so its hygroscopicity is poor, and its moisture absorption rate is only 0.4%. If it is used in large quantities in concrete, it will have adverse effects on municipal drainage

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
  • Waste fiber-regenerated concrete as well as preparation method and application thereof
  • Waste fiber-regenerated concrete as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method for waste fiber recycled concrete, comprising the steps of:

[0033] (1) Preparation of modified fiber:

[0034] S1. Dissolve 100 g of waste polyester textiles and 4 g of chlorobenzene swelling agent into 100 mL of water, stir at 70° C. for 1 hour, and then wash to obtain swollen textiles;

[0035] S2. Add 100 g of the swollen textile in step S1 to an aqueous solution containing 5 mL of Tween 20, and add 10 g of a polysiloxane-based hydrophilic treatment agent, stir at 80° C. for 4 hours, and then dry to obtain a modified textile;

[0036] S3, pulverizing the modified textile in step S2 to obtain modified fibers, the length of which is 1.5 cm;

[0037] (2) Weighing: Weigh raw materials according to the following parts by weight: 953 parts of coarse aggregate, 813 parts of fine aggregate, 340 parts of cementitious material, 6 parts of foaming agent, 6.8 parts of water reducing agent, and 11 parts of modified fiber , 40 parts of slag, 200 parts of w...

Embodiment 2

[0042] A preparation method for waste fiber recycled concrete, comprising the steps of:

[0043] (1) Preparation of modified fiber:

[0044] S1. Dissolve 120 g of waste polyester textiles and 6 g of m-cresol swelling agent in 100 mL of water, stir at 80° C. for 45 min, and then wash to obtain swollen textiles;

[0045] S2. Add 120 g of the swollen textile in step S1 to an aqueous solution containing 8 mL of Tween 60, and add a polyurethane hydrophilic treatment agent, stir at 90° C. for 2.5 h, and then dry to obtain a modified textile;

[0046] S3, pulverizing the modified textile in step S2 to obtain a modified fiber, the length of the modified fiber is 3 cm;

[0047] (2) Weighing: Weigh raw materials according to the following parts by weight: 1000 parts of coarse aggregate, 800 parts of fine aggregate, 400 parts of cementitious material, 5 parts of foaming agent, 7 parts of water reducing agent, and 12 parts of modified fiber , 38 parts of slag, 230 parts of water, spare; ...

Embodiment 3

[0052] A preparation method for waste fiber recycled concrete, comprising the steps of:

[0053] (1) Preparation of modified fiber:

[0054] S1. Dissolve 150g of waste polyester textiles and 8g of chlorobenzene and m-cresol mixed swelling agent into 150mL of water, stir at 85°C for 0.5h and then wash to obtain swollen textiles;

[0055] S2. Add 150 g of the swollen textile in step S1 to an aqueous solution containing 10 mL of AOE9, and add 6 g of a chitosan hydrophilic treatment agent, stir at 100° C. for 1.5 h and then dry to obtain a modified textile;

[0056] S3, pulverizing the modified textile in step S2 to obtain a modified fiber, the length of the modified fiber is 4 cm;

[0057] (3) Weighing: Weigh raw materials according to the following parts by weight: 1080 parts of coarse aggregate, 728 parts of fine aggregate, 490 parts of cementitious material, 3 parts of foaming agent, 8.33 parts of water reducing agent, and 15 parts of modified fiber , 35 parts of slag, 250 p...

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
Lengthaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of construction waste regeneration, in particular to waste fiber-regenerated concrete as well as a preparation method and application thereof. The waste fiber-regenerated concrete is prepared from the following raw materials in parts by weight: 953-1080 parts of coarse aggregate, 728-813 parts of fine aggregate, 340-490 parts of a cementing material, 3-6 parts of a foaming agent, 6.8-8.33 parts of a water reducing agent, 11-15 parts of modified fibers, 35-40 parts of slag and 200-250 parts of water. According to the invention, waste polyester textiles are used as a raw material, and the waste polyester textiles are modified to obtain the modified fibers; and by adopting the modified fibers, excellent water absorption and permeation effects are achieved while the mechanical property of the concrete is guaranteed.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a waste fiber regenerated concrete and its preparation method and application. Background technique [0002] With the development of the city, heavy rain on urban roads puts great pressure on the water supply and drainage, and the landscape of the urban ocean often appears. The main reason is that the urban municipal pipe network is becoming more and more complicated, the drainage is not timely enough, and the drainage effect is also poor. In recent years, foamed concrete has become more and more popular in urban water supply and drainage. Foamed concrete is made by mechanically foaming the foaming agent through the foaming system of the foaming machine, and uniformly mixing the foam with cement slurry, and then foaming The pumping system of the machine is used for cast-in-place construction or mold forming. After natural curing, it is a new type of lightweight thermal...

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): C04B28/14C04B38/10C04B111/40
CPCC04B28/14C04B2111/40C04B2201/50C04B2111/00284C04B2111/00017C04B7/02C04B18/08C04B18/141C04B18/20C04B24/005C04B24/42C04B24/283C04B2103/0068C04B2103/302C04B2103/48C04B2103/304C04B38/10C04B24/02C04B24/282C04B24/38C04B24/32Y02W30/91
Inventor 张静
Owner YANCHENG INST OF IND TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com