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

Wave-absorbing concrete for improving uniformity of microwave-acted pavement temperature field and preparation method thereof

A technology of pavement temperature and uniformity, which is applied in the field of microwave deicing of concrete pavement in winter, can solve the problems of uneven surface temperature field and performance degradation, and achieve the effects of improving mechanical strength, reducing temperature difference, and reducing surface temperature gradient

Pending Publication Date: 2022-04-15
CHANGAN UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies, to provide a microwave-absorbing concrete and a preparation method for improving the uniformity of the temperature field of the microwave-affected road surface, so as to overcome the unevenness of the surface temperature field of the existing microwave-absorbing concrete pavement after being irradiated by microwaves. slow performance issues

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
  • Wave-absorbing concrete for improving uniformity of microwave-acted pavement temperature field and preparation method thereof
  • Wave-absorbing concrete for improving uniformity of microwave-acted pavement temperature field and preparation method thereof
  • Wave-absorbing concrete for improving uniformity of microwave-acted pavement temperature field and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] According to the mass parts, add 10 parts of cement, 35 parts of aggregate and 14 parts of magnetite into the forced concrete mixer, and dry mix at 45r / min~50r / min for 1min to make the materials evenly mixed; Add 4 parts of water and 0.1 part of water reducer to the mixture, and mix for 1 minute at the same speed to make the cement cement composite material evenly mixed; the size of the wave-absorbing concrete device after mixing is 150mm×150mm×150mm The cube mold was vibrated for 1 min, and the air inside the freshly mixed concrete was exhausted. After standing for 24 hours, it was demolded and placed in a standard curing room for 28 days of curing to obtain microwave-absorbing concrete that improved the uniformity of the temperature field of the microwave-induced pavement.

Embodiment 2

[0034] According to the mass parts, add 10 parts of cement, 27 parts of aggregate and 23 parts of magnetite into the forced concrete mixer, and dry mix at 45r / min~50r / min for 1min to make the materials evenly mixed; Add 4 parts of water and 0.1 part of water reducer to the mixture, and mix for 1 minute at the same speed to make the cement cement composite material evenly mixed; the size of the wave-absorbing concrete device after mixing is 150mm×150mm×150mm The cube mold was vibrated for 1 min, and the air inside the freshly mixed concrete was exhausted. After standing for 24 hours, it was demolded and placed in a standard curing room for 28 days of curing to obtain microwave-absorbing concrete that improved the uniformity of the temperature field of the microwave-induced pavement.

Embodiment 3

[0036] According to the mass parts, add 10 parts of cement, 35 parts of aggregate, 14 parts of magnetite and 0.1 part of cellulose thickener into the forced concrete mixer, dry mix at 45r / min~50r / min for 1min, make Mix the materials evenly; add 4 parts of water and 0.1 part of water reducer to the dry-mixed mixture, and mix for 1 minute at the same speed to make the cement cementitious composite material mix evenly; mix the wave-absorbing concrete Vibrate in a cubic mold with a size of 150mm×150mm×150mm for 1 minute, drain the air inside the freshly mixed concrete, let it stand for 24 hours, remove the mold and put it in a standard curing room for 28 days of curing to improve the uniformity of the temperature field of the microwave-induced road surface absorbing concrete.

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
sizeaaaaaaaaaa
electrical resistivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses wave-absorbing concrete capable of improving the uniformity of a microwave-acted pavement temperature field and a preparation method, magnetite aggregate is used for replacing part of natural aggregate to prepare the wave-absorbing concrete, and meanwhile, a cellulose thickener is added to solve the problem that the magnetite sinks to the bottom due to vibration as the density of the magnetite is larger than that of the concrete. Meanwhile, a certain amount of carbon fibers are added to serve as a heat conduction material to serve as filler in the concrete, a heat transfer path is established in the wave-absorbing concrete, heat in the concrete can be effectively transferred from a high-heat area to a low-heat area in a short time, the temperature difference in the concrete is effectively reduced, the surface temperature gradient is reduced, and the thermal conductivity of the concrete is improved. The heating is uniform. The excellent hardness of the magnet ore and the good toughness of the carbon fiber can improve the mechanical strength of the concrete. And under the action of microwave irradiation, the temperature of the wave-absorbing concrete pavement is rapidly increased, and meanwhile, heat is uniformly transferred, so that the pavement deicing efficiency is improved, and meanwhile, the influence of long-term microwaves on deterioration of the mechanical strength of the wave-absorbing concrete is reduced.

Description

technical field [0001] The invention belongs to the field of microwave deicing of concrete pavement in winter, and in particular relates to a wave-absorbing concrete for improving the uniformity of the temperature field of the road surface under microwave action and a preparation method thereof. Background technique [0002] Microwave, as a recyclable and clean energy, has been applied in the field of civil engineering in recent years. Microwave technology can use its heating principle to de-ice the concrete pavement that freezes in winter. In winter, road surface roads and airport pavements cannot be cleared in time to cause snow to freeze, which reduces the friction coefficient of the road, seriously affects driving safety, and increases the rate of traffic accidents. Microwave deicing has the characteristics of small thermal inertia, strong penetration, and no pollution to the environment. The principle is to mix a part of the microwave-absorbing material into the concr...

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 Applications(China)
IPC IPC(8): C04B28/04C04B14/30C04B14/38C04B24/38
Inventor 吴永畅邱贺枰陈华鑫刘益民关博文马子宸吴佳育
Owner CHANGAN UNIV