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Concrete materials having functions of heat conduction and heat storage, and preparation method thereof

A concrete and heat storage technology, applied in heat exchange materials, chemical instruments and methods, preparation of microspheres, etc. The effect of thermal performance, simple process and high compressive strength

Active Publication Date: 2015-03-04
MAANSHAN NBWAVE HEAT ENERGY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of poor thermal conductivity and inability to store heat in the heat-conducting concrete in the prior art, and the gradual decrease in heat storage and release efficiency of the existing heat-storing concrete, the present invention provides a heat-conducting and heat-storing concrete Concrete material and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A concrete material with heat conduction and heat storage functions in this embodiment, the main components are the following raw materials in parts by weight:

[0035] 15 parts of 42.5 grade ordinary Portland cement, 15 parts of quartz sand, 15 parts of natural pebbles, 10 parts of phase change polyethylene microcapsules, 10 parts of graphite, 1 part of aramid fiber (d=0.15mm, L=5mm), 20 parts of water, 1 part of water reducer, 1 part of expansion agent.

[0036] A kind of preparation method of the concrete material with heat conduction and heat storage function of the present embodiment, its specific steps are as follows:

[0037] Step 1: Preparation of phase change polyethylene microcapsules:

[0038]1) Prepare the oil phase and the water phase: melt the phase change material paraffin and the polymer shell material polyethylene and mix them uniformly as the oil phase, wherein: the phase change material paraffin accounts for 40% by mass of the oil phase, and the poly...

Embodiment 2

[0047] A concrete material with heat conduction and heat storage functions in this embodiment, the main components are the following raw materials in parts by weight:

[0048] 25 parts of 42.5 grade ordinary Portland cement, 20 parts of quartz sand, 25 parts of natural pebbles, 7 parts of phase change polyethylene microcapsules, 15 parts of graphite, 3 parts of aramid fiber (d=0.15mm, L=8mm), 30 parts of water, 2 parts of water reducing agent, 3 parts of expansion agent.

[0049] A kind of preparation method of the concrete material with heat conduction and heat storage function of the present embodiment, its specific steps are as follows:

[0050] Step 1: Preparation of phase change polyethylene microcapsules:

[0051] 1) Prepare the oil phase and the water phase: melt the phase change material paraffin and the polymer shell material polyethylene and mix them uniformly as the oil phase, wherein: the phase change material paraffin accounts for 80% by mass of the oil phase, an...

Embodiment 3

[0060] A concrete material with heat conduction and heat storage functions in this embodiment, the main components are the following raw materials in parts by weight:

[0061] 20 parts of 42.5 grade ordinary Portland cement, 25 parts of quartz sand, 20 parts of natural pebbles, 5 parts of phase change polyethylene microcapsules, 13 parts of graphite, 5 parts of aramid fibers (d=0.15mm, L=8mm), 25 parts of water, 3 parts of water reducer, 2 parts of expansion agent.

[0062] A kind of preparation method of the concrete material with heat conduction and heat storage function of the present embodiment, its specific steps are as follows:

[0063] Step 1: Preparation of phase change polyethylene microcapsules:

[0064] 1) Prepare the oil phase and the water phase: melt the phase change material paraffin and the polymer shell material polyethylene and mix them uniformly as the oil phase, wherein: the phase change material paraffin accounts for 5% by mass of the oil phase, and the p...

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Abstract

The invention discloses a concrete material having the functions of heat conduction and heat storage, and a preparation method thereof, and belongs to the technical field of building materials. The concrete material having the function of heat conduction and heat storage, disclosed by the invention, comprises 15-25 parts of cement, 15-25 parts of quartz sand, 15 -25 parts of natural pebbles, 10-15 parts of graphite, 20-30 parts of water, 1-3 parts of water reducing agents, 1-3 parts of expanding agents, 5-10 parts of phase-change polyethylene microcapsules and1-5 parts of aramid fibers. The preparation method comprises three steps: step 1) preparing cement slurry and performing the heat conduction on the cement slurry; step 2) preparing hot concrete slurry; step 3) pouring concrete. The working procedures are simple. Through the adoption of the concrete material and the preparation method, disclosed by the invention, the double purposes of good heat conducting effect and good heat storing effect for the concrete material having the functions of heat conduction and heat storage can be realized.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a concrete material with heat conduction and heat storage functions and a preparation method thereof. Background technique [0002] Thermally conductive concrete is a new type of cement-based composite material made by adding a certain amount of thermally conductive component materials to ordinary concrete. Ordinary concrete is neither an insulator nor a good conductor. Adding a certain amount of thermal conductive components such as graphite and carbon fiber to concrete can improve its thermal conductivity. Adding heat-conducting phase materials to concrete can become heat-conducting concrete, which has the ability to sense and convert heat and electricity. It is a new type of intelligent concrete, which can be used in electrical engineering, electronics, heating, electromagnetic interference shielding, anti-static, steel cathodic protection, etc. Play an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/26C09K5/06B01J13/06
Inventor 孙金金武加耀吴剑锋汪德忠张冰冰
Owner MAANSHAN NBWAVE HEAT ENERGY SCI
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