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Experimental Study on Effect of Different Protective Laying Materials on Dynamic Impact Resistance of Reinforced Concrete Slabs
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Qiu-yue HUANG1, Dong-wang ZHONG1, 2, Teng-fei LI1, Zhi-long YANG1, Li HE1, 2
Blasting | 2025, 42(2) : 120 - 128
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Blasting | 2025, 42(2): 120-128
• EXPLOSIVE DEMOLITION •
Experimental Study on Effect of Different Protective Laying Materials on Dynamic Impact Resistance of Reinforced Concrete Slabs
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Qiu-yue HUANG1, Dong-wang ZHONG1, 2, Teng-fei LI1, Zhi-long YANG1, Li HE1, 2
Affiliations
  • 1.College of Science, Wuhan University of Science and Technology, Wuhan 430065, China
  • 2.Hubei Intelligent Blasting Engineering Technology Research Center, Wuhan 430065, China
Published: 2025-06-01 doi: 10.3963/j.issn.1001-487X.2025.02.015
Outline
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Reinforced concrete structures are usually subjected to explosion impact load, resulting in severe damage. Different protective materials are typically laid on reinforced concrete slabs to improve the explosion resistance. The experimental study on the explosion resistance of reinforced concrete slabs with different protective materials was conducted using the drop hammer test, and an accelerometer tested the impact of reinforced concrete. An embedded piezoelectric intelligent aggregate is used to monitor the internal damage signal of a reinforced concrete slab under the drop hammer impact load. The test results show that both carbon fiber reinforced matrix composites (CFRP) and polyurea can effectively protect the specimens in the single-layer reinforced structure, with an average decrease of 78.20% and 79.05% relative to reinforced concrete acceleration and 40.98% and 65.79% peak impact stress, respectively. Additionally, the average acceleration reduction of polyurea-concrete-CFRP (IPC), polyurea-CFRP-concrete (ICP), and CFRP-concrete-polyurea (CIP) compared with reinforced concrete slabs are 70.29%, 77.46% and 79.85% in the composite protective structure, respectively. The average peak impact stress reduction is 32.73%, 56.32%, and 51.07%, respectively, which can effectively protect the specimens and improve the impact resistance of concrete slabs. It can provide a reference for related engineering applications.

reinforced concrete slabs drop  /  hammer impact  /  CFRP  /  polyurea  /  compound protective structure
Qiu-yue HUANG, Dong-wang ZHONG, Teng-fei LI, Zhi-long YANG, Li HE. Experimental Study on Effect of Different Protective Laying Materials on Dynamic Impact Resistance of Reinforced Concrete Slabs[J]. Blasting, 2025 , 42 (2) : 120 -128 . DOI: 10.3963/j.issn.1001-487X.2025.02.015
Funding
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  • National Natural Science Foundation of China(52274136)
  • National key research and development program of Hubei province(2020BCA084)
Appendix
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Year 2025 volume 42 Issue 2
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130
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Article Info
doi: 10.3963/j.issn.1001-487X.2025.02.015
  • Receive Date：2023-11-20
  • Online Date：2026-03-19
  • Published：2025-06-01
Article Data
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History
  • Received：2023-11-20
Funding
National Natural Science Foundation of China(52274136)
National key research and development program of Hubei province(2020BCA084)
Affiliations
    1.College of Science, Wuhan University of Science and Technology, Wuhan 430065, China
    2.Hubei Intelligent Blasting Engineering Technology Research Center, Wuhan 430065, China

Corresponding:

ZHONG Dong-wang (1963-), male, professor, doctoral supervisor, mainly engaged in engineering blasting and controlled blasting research, (E-mail) .
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https://castjournals.cast.org.cn/joweb/bp/EN/10.3963/j.issn.1001-487X.2025.02.015
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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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