A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental Investigation of the FRCM/Concrete Interfacial Debonding
This project will study the bond behavior of fiber reinforced cementitious matrix (FRCM) composites externally bonded to reinforced concrete (RC) members. Fiber-reinforced composite systems are widely used for strengthening, repairing, and rehabilitation of reinforced concrete structural members. A promising newly-developed type of composite, comprised of fibers and an inorganic cement-based matrix, provides several environmental, structural, and sustainability-related advantages over fiber reinforced polymer (FRP) composites traditionally used in structural applications, which potentially expands the strengthening applications beyond those currently utilized. Such advantages include: 1) high resistance to fire and high temperatures; 2) resistance to UV radiation; 3) ease of handling during the application because the inorganic binder is water-based; 4) easy cleanup and reuse of tools; 5) low odor and toxin emissions during application and curing; 6) permeability compatibility with the concrete substrate; and 7) unvarying workability time (between 40DGF and 105DGF). Stress-transfer mechanisms and interfacial fracture propagation of fiber-reinforced composites externally-bonded to a concrete substrate are complex phenomena that are highly dependent on the bond characteristics of the composite matrix material to the fibers. These phenomena have not yet been clearly defined and understood for FRCM composites. Experimental work will be carried out in this study to isolate the shear debonding phenomenon using single lap shear tests.
Experimental Investigation of the FRCM/Concrete Interfacial Debonding
This project will study the bond behavior of fiber reinforced cementitious matrix (FRCM) composites externally bonded to reinforced concrete (RC) members. Fiber-reinforced composite systems are widely used for strengthening, repairing, and rehabilitation of reinforced concrete structural members. A promising newly-developed type of composite, comprised of fibers and an inorganic cement-based matrix, provides several environmental, structural, and sustainability-related advantages over fiber reinforced polymer (FRP) composites traditionally used in structural applications, which potentially expands the strengthening applications beyond those currently utilized. Such advantages include: 1) high resistance to fire and high temperatures; 2) resistance to UV radiation; 3) ease of handling during the application because the inorganic binder is water-based; 4) easy cleanup and reuse of tools; 5) low odor and toxin emissions during application and curing; 6) permeability compatibility with the concrete substrate; and 7) unvarying workability time (between 40DGF and 105DGF). Stress-transfer mechanisms and interfacial fracture propagation of fiber-reinforced composites externally-bonded to a concrete substrate are complex phenomena that are highly dependent on the bond characteristics of the composite matrix material to the fibers. These phenomena have not yet been clearly defined and understood for FRCM composites. Experimental work will be carried out in this study to isolate the shear debonding phenomenon using single lap shear tests.
Experimental Investigation of the FRCM/Concrete Interfacial Debonding
H.L Sneed (author) / T D'Antino (author) / C Carloni (author)
2014
22 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Civil Engineering , Construction Materials, Components, & Equipment , Construction Management & Techniques , Structural Analyses , Engineering Materials , Materials Degradation & Fouling , Prestressed concrete , Girders , Bonding strength , Design criteria , Beams(Supports) , Pavement overlays , Concrete pavements , Highway construction , Vibration , Life cycle cost analysis , Performance evaluations , Debonding , Prestressing steels , Cracking(Fracturing) , Mathematical models , Loads(Forces) , Asphalt concrete overlay (ACO) , Bonding concrete overlay (BCO) , Interface bonding , Fiber Reinforced Cementitious Matrix(FRCM)
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