Evaluation of Printability and Thermal Properties of 3D Printed Concrete Mixed with Phase Change Materials

Energies

Haibin Yang¹  Hongzhi Cui¹  Shiheng Yu¹  Xiangpeng Cao¹ 

[1] College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518061, China;

关键词: 3D concrete printing;    phase change concrete;    printability;    buildability;    thermophysical properties;   

DOI  :  10.3390/en15061978

来源: DOAJ

【 摘 要 】

Three-dimensional (3D) printed concrete has recently received considerable research attention. In buildings, phase change materials (PCMs) with excellent thermoregulatory properties and thermal storage capacity can improve the insulation capacity of external walls and reduce energy consumption. In this study, microencapsulated paraffin was added to a 3D printable material and a 3D printed phase-change concrete was developed, resulting in good printability and buildability. The compressive and flexural strengths were declined maximally by 44.6% and 37.5%, respectively, with 20 wt% PCM mixed. Results from 3D printed room models proved the thermo-regulated performance by regulating the room temperature when mixed with 20 wt% PCM. With the addition of PCM, 3D printed facilities can have sufficient thermal comfort.

【 授权许可】

Unknown