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High-temperature phase change energy storage concrete and preparation method therefor

A high-temperature phase change and concrete technology, applied in chemical instruments and methods, heat exchange materials, etc., can solve the problems of low work timeliness, poor compatibility between phase change materials and concrete matrix, poor thermal conductivity of concrete matrix, etc., to improve Work effectiveness, simple and convenient preparation method, good integrity and compatibility

Active Publication Date: 2015-12-02
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high temperature phase change energy storage concrete prepared by this technology has the advantages of low cost, low sewage discharge, stable performance, easy construction and maintenance, etc., but there are still the following problems to be solved: (1) The phase change material has poor compatibility with the concrete matrix; ( 2) The thermal conductivity of the concrete matrix is ​​poor, resulting in low working timeliness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A high temperature phase change energy storage concrete is prepared by the following steps:

[0029] (1) Weigh the following raw materials according to weight percentage: Portland cement 16%, copper slag micropowder 8%, copper slag particles 42%, phase change pellets 22%, polycarboxylate superplasticizer 0.1%, water 11.9%;

[0030] (2) Add each raw material into water, stir evenly to obtain a mixture;

[0031] (3) Put the mixture into the mold, harden and form, and cure for 7-10 days at 20-40°C and 40-80% relative humidity to obtain high-temperature phase-change energy storage concrete.

[0032] As mentioned, the phase change spheroids are prepared by the following steps:

[0033] (1) Weigh each material in turn by weight percentage: 18% water, 3% polycarboxylate superplasticizer, 50% aluminate cement, 21% graphite powder, nano-SiO 2 8%;

[0034] (2) Add the water reducer to 10% water, stir evenly, then add aluminate cement and graphite powder, stir for 15-35s, then ...

Embodiment 2

[0040] A high temperature phase change energy storage concrete is prepared by the following steps:

[0041] (1) Weigh the following raw materials according to weight percentage: Portland cement 13%, copper slag micropowder 11%, copper slag particles 37%, phase change pellets 29%, polycarboxylate superplasticizer 0.5%, water 9.5%;

[0042] (2) Add each raw material into water, stir evenly to obtain a mixture;

[0043] (3) Put the mixture into the mold, harden and form, and cure for 7-10 days at 20-40°C and 40-80% relative humidity to obtain high-temperature phase-change energy storage concrete.

[0044] As mentioned, the phase change spheroids are prepared by the following steps:

[0045] (1) Weigh each material in turn by weight percentage: 15% water, 4% polycarboxylate superplasticizer, 41% aluminate cement, 30% graphite powder, nano-SiO 2 10%;

[0046] (2) Add water reducer to 8% water, stir evenly, then add aluminate cement and graphite powder, stir for 15-35s, then add ...

Embodiment 3

[0052] A high temperature phase change energy storage concrete is prepared by the following steps:

[0053] (1) Weigh the following raw materials according to weight percentage: Portland cement 10%, copper slag micropowder 15%, copper slag particles 33%, phase change pellets 35%, polycarboxylate superplasticizer 1%, water 6%;

[0054] (2) Add each raw material into water, stir evenly to obtain a mixture;

[0055] (3) Put the mixture into the mold, harden and form, and cure for 7-10 days at 20-40°C and 40-80% relative humidity to obtain high-temperature phase-change energy storage concrete.

[0056] As mentioned, the phase change spheroids are prepared by the following steps:

[0057] (1) Weigh each material in turn by weight percentage: 10% water, 5% polycarboxylate superplasticizer, 32% aluminate cement, 41% graphite powder, nano-SiO 2 12%;

[0058] (2) Add water reducer to 5% water, stir evenly, then add aluminate cement and graphite powder, stir for 15-35s, then add nano...

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Abstract

The invention discloses high-temperature phase change energy storage concrete and a preparation method therefor. The high-temperature phase change energy storage concrete comprises the following raw materials in percentage by weight: 10-16% of silicate cement, 8-15% of copper slag micropowder, 33-42% of copper slag particles, 22-35% of phase change spherulites, 0.1-1% of a polycarboxylate superplasticizer and 6-11.9% of water. According to the high-temperature phase change energy storage concrete disclosed by the invention, the phase change spherulites and the concrete are organically combined, so that the concrete is good in integrality and compatibility, and the high-temperature performance of the concrete is improved; by adding the copper slag micropowder and the copper slag particles as an admixture and fine aggregate, the heat conductivity of the concrete is effectively improved, and the work effectiveness is improved. The concrete disclosed by the invention is simple and convenient in preparation method and low in cost.

Description

technical field [0001] The invention relates to a high-temperature phase-change energy storage concrete and a preparation method thereof, belonging to the technical field of energy-saving building materials. Background technique [0002] With the reduction of traditional non-renewable energy sources, the crisis of energy depletion is becoming more and more significant, which has attracted unprecedented attention from all countries in the world. Solar energy stands out due to its advantages such as its unlimited reserves, universality of existence, cleanness of use and safety of use, and ranks first in the growth rate of various energy sources in the world. In the process of utilizing solar energy, due to the influence of cloudy weather and day and night, energy storage has become a prominent problem. [0003] Phase change energy storage technology is a new type of environmental protection and energy saving technology, which stores and releases energy through the phase chang...

Claims

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Application Information

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IPC IPC(8): C04B28/04C09K5/00C04B14/34C04B24/24
Inventor 宫晨琛胡大峰芦令超王守德程新
Owner UNIV OF JINAN
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