THERMAL PARAMETERS OF WHEAT-STRAW FIBER REINFORCED NOVEL MATERIAL MEASURED WITH HOT-WIRE METHOD

ZHU Jing; FENG Shihui; LIU Shaotong; QU Zijian; SONG Lizhuo

doi:10.13204/j.gyjzG21012105

Volume 51 Issue 4

Aug. 2021

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ZHU Jing, FENG Shihui, LIU Shaotong, QU Zijian, SONG Lizhuo. THERMAL PARAMETERS OF WHEAT-STRAW FIBER REINFORCED NOVEL MATERIAL MEASURED WITH HOT-WIRE METHOD[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(4): 53-57. doi: 10.13204/j.gyjzG21012105

Citation:

ZHU Jing, FENG Shihui, LIU Shaotong, QU Zijian, SONG Lizhuo. THERMAL PARAMETERS OF WHEAT-STRAW FIBER REINFORCED NOVEL MATERIAL MEASURED WITH HOT-WIRE METHOD[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(4): 53-57. doi: 10.13204/j.gyjzG21012105

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THERMAL PARAMETERS OF WHEAT-STRAW FIBER REINFORCED NOVEL MATERIAL MEASURED WITH HOT-WIRE METHOD

doi: 10.13204/j.gyjzG21012105

1. College of Civil Engineering and Architecture, Harbin University of Science and Technology, Harbin 150080, China;
2. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China

Received Date: 2021-01-21
Available Online: 2021-08-19

Abstract

Abstract

The thermal parameters (thermal conductivity, thermal diffusion and specific heat capacity) of PF-AASCM were measured with hot-wire method at high temperatures (20 to 800℃). The thermal conductivity, thermal diffusion and specific heat capacity of PF-AASCM ranged from 0.8 to 3.7 W/(m·K), from 0.3 to 1.1 m²/s, and from 0.5 to 1.8 kJ/(kg·K), respectively. The thermal parameters showed a small peak at 200℃, which is indicated that a strong exothermic reaction happens. The thermal conductivity of PF-AASCM and concrete material was compared, and the analysis results showed that the thermal conductivity of PF-AASCM at 800℃ was basically the same as that of concrete. Its thermal diffusivity is higher, thermal conductivity and specific heat are relatively lower. It shows that PF-AASCM has good thermal diffusivity, but poor heat conduction and storage capacity, which indicates that PF-AASCM has heat insulation and heat storage capacity. The central temperature of the high-temperature specimen was measured, which was compared with the simulation results of finite element in the temperature field, the increase of the central temperature of the specimens is in good agreement.
- alkali-activated slag cementitious material,
- plant fiber,
- hot-wire method,
- thermal performance

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References(20)

References

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