Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Phase change concrete and preparation method thereof
The invention discloses phase-change concrete and a preparation method thereof.The phase-change concrete is prepared from composite phase-change aggregate and fly ash, the composite phase-change aggregate is prepared from n-decanoic acid, n-caprylic acid, n-tetradecane and nano-graphite.n-decanoic acid, n-caprylic acid and n-tetradecane serve as phase-change materials, the chemical performance is stable, and the phase-change aggregate is high in strength, high in strength and good in performance; the three materials are good in co-melting effect, the melting point after co-melting is very close to zero DEG C, and phase change can be triggered when the environment temperature approaches to the freezing point, so that the rate of positive and negative temperature alternation is slowed down, the nano-graphite can be used as an additive for improving the heat-conducting property, and the thermal performance exerting efficiency of the energy storage phase change material is improved; and positive and negative temperature alternation is slowed down, damage caused by freezing and thawing cycles can be fundamentally reduced, the service life of the phase-change concrete is effectively prolonged, the working performance of the phase-change concrete can be further improved by adding the fly ash, and the phase-change concrete has a wide application prospect.
本发明公开了一种相变混凝土及其制备方法，所述相变混凝土的材料包括复合相变骨料和粉煤灰，其中，所述复合相变骨料的材料包括正癸酸、正辛酸、正十四烷和纳米石墨，本发明将正癸酸、正辛酸、正十四烷作为相变材料，化学性能稳定，相变潜热高，无毒，且三种材料共熔效果很好，共熔后熔点十分接近零度，在环境温度逼近冰点时就可以触发相变，从而减缓温度正负交替的速率，配合纳米石墨可以作为导热性能改善的添加剂，改善储能相变材料的热性能发挥效率，减缓温度正负交替，可以从根本上降低冻融循环带来的损伤从而有效提高相变混凝土使用寿命，且粉煤灰的添加可以进一步改善相变混凝土的工作性能，具有广泛的应用前景。
Phase change concrete and preparation method thereof
The invention discloses phase-change concrete and a preparation method thereof.The phase-change concrete is prepared from composite phase-change aggregate and fly ash, the composite phase-change aggregate is prepared from n-decanoic acid, n-caprylic acid, n-tetradecane and nano-graphite.n-decanoic acid, n-caprylic acid and n-tetradecane serve as phase-change materials, the chemical performance is stable, and the phase-change aggregate is high in strength, high in strength and good in performance; the three materials are good in co-melting effect, the melting point after co-melting is very close to zero DEG C, and phase change can be triggered when the environment temperature approaches to the freezing point, so that the rate of positive and negative temperature alternation is slowed down, the nano-graphite can be used as an additive for improving the heat-conducting property, and the thermal performance exerting efficiency of the energy storage phase change material is improved; and positive and negative temperature alternation is slowed down, damage caused by freezing and thawing cycles can be fundamentally reduced, the service life of the phase-change concrete is effectively prolonged, the working performance of the phase-change concrete can be further improved by adding the fly ash, and the phase-change concrete has a wide application prospect.
本发明公开了一种相变混凝土及其制备方法，所述相变混凝土的材料包括复合相变骨料和粉煤灰，其中，所述复合相变骨料的材料包括正癸酸、正辛酸、正十四烷和纳米石墨，本发明将正癸酸、正辛酸、正十四烷作为相变材料，化学性能稳定，相变潜热高，无毒，且三种材料共熔效果很好，共熔后熔点十分接近零度，在环境温度逼近冰点时就可以触发相变，从而减缓温度正负交替的速率，配合纳米石墨可以作为导热性能改善的添加剂，改善储能相变材料的热性能发挥效率，减缓温度正负交替，可以从根本上降低冻融循环带来的损伤从而有效提高相变混凝土使用寿命，且粉煤灰的添加可以进一步改善相变混凝土的工作性能，具有广泛的应用前景。
Phase change concrete and preparation method thereof
一种相变混凝土及其制备方法
LIU BO (Autor:in) / KABU SAKAE (Autor:in) / XIE JIANGSHENG (Autor:in) / ZHONG WEILING (Autor:in) / WANG CHAO (Autor:in) / YOU NAN (Autor:in) / JIANG ZIQI (Autor:in)
26.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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