A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study of the structural-functional lightweight concrete containing novel hollow ceramsite compounded with paraffin
Graphical abstract Display Omitted
Highlights Lightweight aggregate concrete (LWAC) containing novel hollow ceramsite (HC) compounded with paraffin is proposed and charactered. The compressive strength of LWAC/HC-Paraffin is 41.9 MPa which could be used for structural application and has a good thermal cycle stability. The 8.1 wt% paraffin introduced into energy storage concrete play an important role in regulating temperature fluctuation. The LWAC/HC-Paraffin could effectively alleviate the contradiction between the strength of energy storage concrete and the amount of PCMs added.
Abstract In this paper, a structural-functional lightweight aggregate concrete (LWAC) with novel hollow ceramsite (HC) compounded with paraffine was prepared and studied. The mechanical and thermal properties of LWAC with HC-Paraffin are investigated and multiple thermal cycles are tested to evaluate the stability of this novel energy storage concrete. Results show that, the energy storage density () of HC-paraffin is 85.23 J/g in the temperature range 15 °C–45 °C and the latent heat of HC-paraffin is 51.09 J/g. Compressive strength of LWAC with HC-Paraffin is 41.9 MPa which fully meets the requirements of structural building application. The amount of paraffin (8.1 wt%) introduced by HC is relatively advantageous in the current energy storage concrete researches. Compare to control group, the peak temperature and temperature fluctuation of LWAC panel with HC-Paraffin reduce about 5.2 °C and 7.6 °C respectively during the thermal test. Morever, the LWAC with HC-Paraffin shows good stability of mechanical and thermal property. The compressive strength of concrete increases about 8.6 % and the thermal regulation ability of concrete panel has no obvious degradation after 100 thermal cycles. This research gives a new method for the shape stable PCMs which can be directly used in building envelope, providing an alternative for the application of PCMs in buildings.
Study of the structural-functional lightweight concrete containing novel hollow ceramsite compounded with paraffin
Graphical abstract Display Omitted
Highlights Lightweight aggregate concrete (LWAC) containing novel hollow ceramsite (HC) compounded with paraffin is proposed and charactered. The compressive strength of LWAC/HC-Paraffin is 41.9 MPa which could be used for structural application and has a good thermal cycle stability. The 8.1 wt% paraffin introduced into energy storage concrete play an important role in regulating temperature fluctuation. The LWAC/HC-Paraffin could effectively alleviate the contradiction between the strength of energy storage concrete and the amount of PCMs added.
Abstract In this paper, a structural-functional lightweight aggregate concrete (LWAC) with novel hollow ceramsite (HC) compounded with paraffine was prepared and studied. The mechanical and thermal properties of LWAC with HC-Paraffin are investigated and multiple thermal cycles are tested to evaluate the stability of this novel energy storage concrete. Results show that, the energy storage density () of HC-paraffin is 85.23 J/g in the temperature range 15 °C–45 °C and the latent heat of HC-paraffin is 51.09 J/g. Compressive strength of LWAC with HC-Paraffin is 41.9 MPa which fully meets the requirements of structural building application. The amount of paraffin (8.1 wt%) introduced by HC is relatively advantageous in the current energy storage concrete researches. Compare to control group, the peak temperature and temperature fluctuation of LWAC panel with HC-Paraffin reduce about 5.2 °C and 7.6 °C respectively during the thermal test. Morever, the LWAC with HC-Paraffin shows good stability of mechanical and thermal property. The compressive strength of concrete increases about 8.6 % and the thermal regulation ability of concrete panel has no obvious degradation after 100 thermal cycles. This research gives a new method for the shape stable PCMs which can be directly used in building envelope, providing an alternative for the application of PCMs in buildings.
Study of the structural-functional lightweight concrete containing novel hollow ceramsite compounded with paraffin
Wang, Fei (author) / Zheng, Wukui (author) / Qiao, Zhigang (author) / Qi, Yongle (author) / Chen, Zili (author) / Li, Hui (author)
2022-05-24
Article (Journal)
Electronic Resource
English
Lightweight water-permeable concrete containing ceramsite
| European Patent Office | 2016
Ceramsite lightweight aggregate structural concrete and preparation method thereof
| European Patent Office | 2015
Study on the Thermal Properties of Paraffin/Ceramsite Phase Change Concrete
| Tema Archive | 2013