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Impact Resistance of EPS Concrete at Early Ages
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Jing ZHOU1, Wen-fei WANG2, Nan HU3
Blasting | 2024, 41(3) : 149 - 155
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Blasting | 2024, 41(3): 149-155
• EXPLOSIVE DEMOLITION •
Impact Resistance of EPS Concrete at Early Ages
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Jing ZHOU1, Wen-fei WANG2, Nan HU3
Affiliations
  • 1.Department of Urban Construction, Taiyuan City Vocational College, Taiyuan 030027, China
  • 2.CCCC First Highway Consultants Co., Ltd., Xi'an 710075, China
  • 3.School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China
Published: 2024-09-01 doi: 10.3963/j.issn.1001-487X.2024.03.018
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Dynamic mechanical tests were carried out on EPS concrete at early ages (12 h、24 h and 36 h). Whereafter, the influences of impact velocity (4.5~6.5 m/s) and age (12 h、24 h and 36 h) on impact resistance of EPS concrete were analyzed in terms of dynamic compressive strength, peak strain, ultimate strain and energy dissipation density. Additionally, the properties of EPS concrete at early ages were compared with that at the age of 28 d. The results show that the dynamic compressive strength, peak strain, ultimate strain, and energy dissipation density of EPS concrete have an impact on the velocity-strengthening effect. With the increase of age, the dynamic mechanical property indicators of EPS concrete and its sensitivity to impact velocity increase. At the age of 28 d, the dynamic compressive strength, peak strain, ultimate strain and dissipation density of EPS concrete are the maximum, and its sensitivity to impact velocity is the strongest. EPS concrete has good deformation and energy absorption characteristics at the early age. At the age of 36 h, the peak strain, ultimate strain and energy dissipation density of EPS concrete can reach 66%~82%, 91%~93% and 72%~78% of that at the age of 28 d, respectively.

EPS concrete  /  impact resistance  /  age  /  deformation characteristic  /  energy absorption characteristic
Jing ZHOU, Wen-fei WANG, Nan HU. Impact Resistance of EPS Concrete at Early Ages[J]. Blasting, 2024 , 41 (3) : 149 -155 . DOI: 10.3963/j.issn.1001-487X.2024.03.018
Funding
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  • Natural science Foundation of Shandong Province(ZR2021ME004)
Appendix
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Year 2024 volume 41 Issue 3
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Article Info
doi: 10.3963/j.issn.1001-487X.2024.03.018
  • Receive Date：2023-07-17
  • Online Date：2026-03-20
  • Published：2024-09-01
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History
  • Received：2023-07-17
Funding
Natural science Foundation of Shandong Province(ZR2021ME004)
Affiliations
    1.Department of Urban Construction, Taiyuan City Vocational College, Taiyuan 030027, China
    2.CCCC First Highway Consultants Co., Ltd., Xi'an 710075, China
    3.School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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