skip to main content
Idioma:
Primo Advanced Search
Primo Advanced Search Query Term
Primo Advanced Search prefilters
Busca Simples

Concrete cracking prediction under combined prestress and strand corrosion

Wang, Lei ; Dai, Lizhao ; Bian, Hanbing ; Ma, Yafei ; Zhang, Jianren

Structure and infrastructure engineering, 2019-03, Vol.15 (3), p.285-295 [Periódico revisado por pares]

Taylor & Francis

Texto completo disponível

Citações Citado por
  • Título:
    Concrete cracking prediction under combined prestress and strand corrosion
  • Autor: Wang, Lei ; Dai, Lizhao ; Bian, Hanbing ; Ma, Yafei ; Zhang, Jianren
  • Assuntos: Civil Engineering ; concrete cracking ; corrosion products ; crack propagation ; Engineering Sciences ; Materials ; Mechanics ; Prestressed concrete ; rust-expansion ratio ; strand corrosion
  • É parte de: Structure and infrastructure engineering, 2019-03, Vol.15 (3), p.285-295
  • Descrição: This study investigates strand corrosion-induced concrete cracking under various prestress experimentally and analytically. Experimental data on the critical time of cover cracking, crack width and corrosion loss obtained from the accelerated corrosion test are presented and discussed. The expansion ratio of strand corrosion products is estimated based on the infrared spectroscopy and thermal gravimetry. An analytical model, incorporating the coupled effects of prestress and strand corrosion, is proposed to predict the global process of concrete cracking from initiation to propagation. Strand rust-expansion ratio and the residual stiffness of cracked concrete are also included in the model. Results show that prestress can accelerate the corrosion-induced cracking process. By varying prestress from 0 to 75% strand tensile strength, the critical time of cover cracking decreases 22% and the crack propagation rate increases 9%. It is found that the proposed model is accurate in predicting corrosion-induced crack width in prestressed concrete beams.
  • Editor: Taylor & Francis
  • Idioma: Inglês
Links
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  10 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.