Shear Behavior of Concrete Beams Strengthened with CFRP Grid and PCM Shotcrete

Autor:	Andi Arwin Amiruddin
Rok vydání:	2019
Předmět:	Materials science Concrete beams Shear (geology) business.industry Structural engineering business Grid Shotcrete Cement mortar Diagonal crack Beam (structure) Longitudinal direction
Zdroj:	EPI International Journal of Engineering. 2:5-8
ISSN:	2621-0541 2615-5109
DOI:	10.25042/epi-ije.022019.02
Popis:	The results of an experimental and analytical study of the shear behavior of damaged or under-strength concrete beams strengthened with carbon fiber reinforced plastics (CFRP) grid and polymer cement mortar (PCM) shotcrete describes in this paper. The aim of this study is to evaluate shear performances of reinforced concrete beams retrofitted by using PCM shotcrete and CFRP grid. Four concrete beams reinforced internally with steel and externally with both PCM and CFRP grid (longitudinal direction used CR-10 and transversal direction used CR-6) applied to the specimens were tested under three-point bending. The shear failure is initiated by a major diagonal crack within the beam shear span. This diagonal crack extended horizontally at the level of the CFRP grid. Results show that PCM shotcrete with CFRP grid is very effective for shear strengthening. Increases in strength of 140% for PGB over the RCB as control, un-retrofitted beams were noted.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::56fc8e7e91d13a7f9b1c3b9ef7fe63ec https://doi.org/10.25042/epi-ije.022019.02 Zobrazit plný text záznamu