Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Formula for improving freeze-thaw performance of loess roadbed through phase-change material and preparation method thereof
The invention discloses a formula for improving the freeze-thaw performance of a loess roadbed through a phase-change material and a preparation method thereof, belonging to the field of road roadbed construction. The invention aims to provide the phase-change material for solving freezing-thawing problems of roadbeds. The formula comprises the following components in parts by mass: 5-10 parts of a phase change material, 90-95 parts of loess and 7-21 parts of water, wherein the phase change material comprises liquid paraffin or phase-change microcapsules. Thus, a temperature self-adjusting system is formed in the loess roadbed, and the relative stability of the loess roadbed is maintained. The phase-change material has the characteristic of absorbing and releasing energy through self phase state change; and when the roadbed temperature is lower than the freezing temperature, the PCM (phase-change material) improved soil can release heat to relieve the adverse effect generated by freezing and thawing, so the roadbed is protected. The phase-change material used in the invention is green and pollution-free, has cost lower than the cost of a traditional roadbed material resistant to freezing and thawing, can be recycled, is simple in construction process, and has certain theoretical significance and engineering value for guaranteeing the long-term performance stability of the loess roadbed and protecting the ecological environment.
一种相变材料改良黄土路基冻融性能的配方及其制备方法，属于道路路基施工领域，目的在于提供一种用于解决路基冻融的相变材料，包括如下质量份数的组分：5~10份相变材料、90~95份黄土以及7~21份水；相变材料包括液态石蜡或相变微胶囊。使得黄土路基内部形成一种温度自调节体系，维持黄土路基的相对稳定。相变材料具有通过自身相态变化进行吸收和释放能量的特点，当路基温度低于结冰温度时，PCM改良土会释放热量以减缓冻融产生的不利影响，从而对路基起到保护作用。本发明中相变材料绿色无污染、成本低于传统抗路基冻融材料，可循环利用，施工工艺简单，对于保障黄土路基长期性能稳定和生态环境保护具有一定理论意义和工程价值。
Formula for improving freeze-thaw performance of loess roadbed through phase-change material and preparation method thereof
The invention discloses a formula for improving the freeze-thaw performance of a loess roadbed through a phase-change material and a preparation method thereof, belonging to the field of road roadbed construction. The invention aims to provide the phase-change material for solving freezing-thawing problems of roadbeds. The formula comprises the following components in parts by mass: 5-10 parts of a phase change material, 90-95 parts of loess and 7-21 parts of water, wherein the phase change material comprises liquid paraffin or phase-change microcapsules. Thus, a temperature self-adjusting system is formed in the loess roadbed, and the relative stability of the loess roadbed is maintained. The phase-change material has the characteristic of absorbing and releasing energy through self phase state change; and when the roadbed temperature is lower than the freezing temperature, the PCM (phase-change material) improved soil can release heat to relieve the adverse effect generated by freezing and thawing, so the roadbed is protected. The phase-change material used in the invention is green and pollution-free, has cost lower than the cost of a traditional roadbed material resistant to freezing and thawing, can be recycled, is simple in construction process, and has certain theoretical significance and engineering value for guaranteeing the long-term performance stability of the loess roadbed and protecting the ecological environment.
一种相变材料改良黄土路基冻融性能的配方及其制备方法，属于道路路基施工领域，目的在于提供一种用于解决路基冻融的相变材料，包括如下质量份数的组分：5~10份相变材料、90~95份黄土以及7~21份水；相变材料包括液态石蜡或相变微胶囊。使得黄土路基内部形成一种温度自调节体系，维持黄土路基的相对稳定。相变材料具有通过自身相态变化进行吸收和释放能量的特点，当路基温度低于结冰温度时，PCM改良土会释放热量以减缓冻融产生的不利影响，从而对路基起到保护作用。本发明中相变材料绿色无污染、成本低于传统抗路基冻融材料，可循环利用，施工工艺简单，对于保障黄土路基长期性能稳定和生态环境保护具有一定理论意义和工程价值。
Formula for improving freeze-thaw performance of loess roadbed through phase-change material and preparation method thereof
一种相变材料改良黄土路基冻融性能的配方及其制备方法
ZHANG XIAO (Autor:in) / ZHENG YONGJIE (Autor:in) / GAO YANG (Autor:in) / SHI LIQIANG (Autor:in) / LIU FANG (Autor:in) / ZHANG YANFEI (Autor:in) / DONG XIAOQIANG (Autor:in) / QIN PENGJU (Autor:in) / LUO ZHILI (Autor:in) / LAN XUEJIANG (Autor:in)
27.07.2021
Patent
Elektronische Ressource
Chinesisch
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