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

An integrated device and method for cooling and moisturizing grouting of large-volume concrete

A large-volume concrete and concrete technology, which is applied in the direction of construction and infrastructure engineering, can solve the problems of internal cracks that are difficult to avoid, concrete moisturizing and curing, and concrete cracks without good solutions, so as to avoid temperature rise cracks and low cost , to achieve the effect of crack resistance

Active Publication Date: 2020-11-13
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A moisturizing mechanism is set up, but since there are no ventilation holes inside the pipeline, the moisturizing mechanism cannot moisturize and maintain the interior of the concrete
[0007] In the prior art, the curing devices for large-volume concrete cannot perform moisturizing maintenance on the inside of the concrete, and the internal cracks after the concrete is cured are unavoidable, but there is no good solution for the cracks generated inside the concrete 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
  • An integrated device and method for cooling and moisturizing grouting of large-volume concrete
  • An integrated device and method for cooling and moisturizing grouting of large-volume concrete
  • An integrated device and method for cooling and moisturizing grouting of large-volume concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as Figure 1-3 As shown, a large-volume concrete cooling and moisturizing grouting integrated device in this embodiment includes an air refrigerator 1, an atomizer 2, and a cold air pipeline; the cold air pipeline includes an air intake pipe 3, an air outlet pipe 4, and The cold air buried pipe, the cold air buried pipe includes the cold air main pipe 5, the cold air branch pipe 6, and the cold air branch pipe 7; the cold air main pipe 5 is horizontally arranged in the middle of the concrete 8 and the middle of the cold air main pipe 5 is connected to one end of the air intake pipe 3 vertical to the surface of the concrete 8; The air pipe 3 is provided with a booster pump 9 and a pressure gauge 10, and the other end of the air inlet pipe 3 is respectively connected to a low-temperature atomization channel 11 and an ultra-fine cement slurry grouting channel 12 through a three-way pipe. Machine 1 and atomizer 2, ultra-fine cement slurry grouting channel 12 is connect...

Embodiment 2

[0049] Such as Figure 4-7 As shown, compared with Embodiment 1, the cold air branch pipe 7 of this embodiment is provided with a one-way valve 18 for controlling the atomized water drops or ultra-fine cement slurry in the cold air branch pipe to flow into the concrete 8 in one direction from the air hole 16 . The one-way valve includes a vent 1801 , an elastic blocking piece 1802 and a stopper 1803 , the elastic blocking piece 1802 is arranged behind the ventilation port 1801 , and the stopper 1803 is located on one side behind the elastic blocking piece 1802 . The elastic blocking piece can be made of elastic rubber sheet, more preferably made of air permeable and impermeable elastic material. When the booster pump works, the pressure of the cold air pipe is greater than the air pressure in the pore, and one side of the elastic flap is deformed and bent to the side and rear, so that the vent is opened, and the atomized water drops or ultra-fine cement slurry enters the inter...

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 relates to a cooling, moisturizing and grouting integrated device and method for mass concrete. The device comprises an air refrigerator, an atomizer and a cold air pipeline. The cold air pipeline comprises an air inlet pipe, an air outlet pipe and a cold air buried pipe pre-buried in concrete. The cold air buried pipe comprises a cold air main pipe, cold air branch pipes and cold air branch pipes. A pressurizing device and a pressure gauge are arranged on the air inlet pipe, and the air inlet pipe is connected with the low-temperature atomization channel and the superfine cementpaste grouting channel through a three-way pipe; the air outlet pipe is connected with the recovery tank; the two sides of the pipeline of each cold air branch pipe are connected with a plurality ofcold air branch pipes, and a plurality of vent holes are formed in the cold air branch pipes. According to the integrated device, the interior of concrete can be subjected to cooling and moisturizingmaintenance at the same time, the internal stress is greatly reduced, temperature shrinkage and drying shrinkage are reduced, and cracks are reduced; and grouting treatment can be performed to repaircracks in concrete.

Description

technical field [0001] The invention belongs to the field of construction, and in particular relates to an integrated device and method for cooling and moisturizing grouting of large-volume concrete. Background technique [0002] Today, cracks are still a persistent problem plaguing mass concrete structures. Research and practice have shown that temperature stress is the most important cause of mass concrete cracking during construction and even operation. During the construction period, the hydration reaction of the cementitious material in the concrete will generate a large amount of heat, which will cause the temperature of the structure to rise, and the internal and external temperature difference deformation caused by the temperature rise will easily cause cracks on the surface of the structure under the action of self-constraint. The temperature stress generated by the overall cooling temperature difference in the later period under the action of external constraints ...

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): E02D15/02E02D15/04
Inventor 李家正李明霞颉志强
Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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