气候变化领域集成服务门户(CCPortal): Direct incorporation of paraffin wax as phase change material into mass concrete for temperature control: mechanical and thermal properties

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DOI	10.3724/SP.J.1226.2021.20032
	Direct incorporation of paraffin wax as phase change material into mass concrete for temperature control: mechanical and thermal properties
	Luo, Tao; Ma, JuanJuan; Liu, Fang; Zhang, MingYi; Sun, ChaoWei; Ji, YanJun; Yuan, XiaoSa
通讯作者	Liu, F (通讯作者)，Xijing Univ, Shaanxi Key Lab Safety & Durabil Concrete Struct, 1st Xijing Rd, Xian 710123, Shaanxi, Peoples R China.
发表日期	2021
ISSN	1674-3822
起始页码	30
结束页码	42
卷号	13 期号:1
英文摘要	Taking advantage of heat absorbing and releasing capability of phase change material (PCM), Paraffin wax-based concrete was prepared to assess its automatic temperature control performance. The mechanical properties of PCM concrete with eight different Paraffin wax contents were tested by the cube compression test and four-point bending test. The more Paraffin wax incorporated, the greater loss of the compressive strength and bending strength. Based on the mechanical results, four contents of Paraffin wax were chosen for studying PCM concrete's thermal properties, including thermal conductivity, thermal diffusivity, specific heat capacity, thermal expansion coefficient and adiabatic temperature rise. When the Paraffin wax content increases from 10% to 20%, the thermal conductivity and the thermal diffusivity decrease from 7.31 kJ/(m.h.degrees C) to 7.10 kJ/(m.h.degrees C) and from 3.03x 10(-3) m(2)/h to 2.44x10(-3) m(2)/h, respectively. Meanwhile the specific heat capacity and thermal expansion coefficient rise from 5.38x10(-1) kJ/(kg.degrees C) to 5.76x 10(-1) kJ/(kg.degrees C) and from 9.63x10(-6)/degrees C to 14.02x10(-6)/degrees C, respectively. The adiabatic temperature rise is found to decrease with an increasing Paraffin wax content. Considering both the mechanical and thermal properties, 15% of Paraffin wax was elected for the mass concrete model test, and the model test results confirm the effect of Paraffin wax in automatic mass concrete temperature control.
关键词	CHANGE MATERIAL PCM SIMULATION ANALYSIS HEAT ENERGY PERFORMANCE CRACKING STORAGE FIELD HYDRATION STRENGTH
英文关键词	phase change material; Paraffin wax; temperature control; mechanical properties; thermal properties; mass concrete
语种	英语
WOS研究方向	Physical Geography
WOS类目	Geography, Physical
WOS记录号	WOS:000616396000003
来源期刊	SCIENCES IN COLD AND ARID REGIONS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254871
作者单位	[Luo, Tao; Ma, JuanJuan; Liu, Fang; Sun, ChaoWei; Ji, YanJun; Yuan, XiaoSa] Xijing Univ, Shaanxi Key Lab Safety & Durabil Concrete Struct, 1st Xijing Rd, Xian 710123, Shaanxi, Peoples R China; [Luo, Tao; Zhang, MingYi] Chinese Acad Sci, State Key Lab Frozen Soil Engn, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Luo, Tao,Ma, JuanJuan,Liu, Fang,et al. Direct incorporation of paraffin wax as phase change material into mass concrete for temperature control: mechanical and thermal properties[J]. 中国科学院西北生态环境资源研究院,2021,13(1).
APA	Luo, Tao.,Ma, JuanJuan.,Liu, Fang.,Zhang, MingYi.,Sun, ChaoWei.,...&Yuan, XiaoSa.(2021).Direct incorporation of paraffin wax as phase change material into mass concrete for temperature control: mechanical and thermal properties.SCIENCES IN COLD AND ARID REGIONS,13(1).
MLA	Luo, Tao,et al."Direct incorporation of paraffin wax as phase change material into mass concrete for temperature control: mechanical and thermal properties".SCIENCES IN COLD AND ARID REGIONS 13.1(2021).