Experimental research and numerical analysis of the effects of blasting vibration on young concrete

  • Zhengguo Gao*
  • , Qingqing Zhu
  • , Xin Huang
  • , Xiaobo Huang
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

During large airport projects, blasting works can bring adverse effects on young concrete and decrease its strength. To ensure concrete structures comply with design requirements, model tests and numerical simulations were conducted to study this effect on the strength of young concrete. The test applied pendulum blew to the cubes at different curing times and measured 18-day and 28-day compressive strengths. The results show that the effects on the strength of young concrete depend on the curing time at blasting. The decrease of the strength within the first 1-2 days is not obvious, but is more pronounced at 3-5days. After that period, it has no more effect. It was also revealed that longer curing times can heal concrete cracks which occurred during the blasting vibration. The results of prior research work and site testing can also contribute to establish the security technology index for related projects.

Original languageEnglish
Title of host publicationCICTP 2012
Subtitle of host publicationMultimodal Transportation Systems - Convenient, Safe, Cost-Effective, Efficient - Proceedings of the 12th COTA International Conference of Transportation Professionals
Pages2986-2995
Number of pages10
DOIs
StatePublished - 2012
Event12th COTA International Conference of Transportation Professionals: Multimodal Transportation Systems - Convenient, Safe, Cost-Effective, Efficient, CICTP 2012 - Beijing, China
Duration: 3 Aug 20126 Aug 2012

Publication series

NameCICTP 2012: Multimodal Transportation Systems - Convenient, Safe, Cost-Effective, Efficient - Proceedings of the 12th COTA International Conference of Transportation Professionals

Conference

Conference12th COTA International Conference of Transportation Professionals: Multimodal Transportation Systems - Convenient, Safe, Cost-Effective, Efficient, CICTP 2012
Country/TerritoryChina
CityBeijing
Period3/08/126/08/12

Keywords

  • Blasting Vibration
  • Curing Time
  • Strength
  • Young Concrete

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