BOND STRENGTH OF REINFORCED LATERIZED CONCRETE
31st Our World in Concrete and Structures (OWICs) - 2006
F. Falade, University of Lagos, Akoka-Lagos, Nigeria.
G.L Oyekan*, University of Lagos, Akoka-Lagos, Nigeria.
Bond Strength, Laterized Concrete, Beams, Reinforcement, Embedment
depth, Pullout rods
This paper presents the results of an investigation into the effects of reinforcement
diameter and embedment depth on the bond strength of reinforced laterized
concrete beams. Four different bar diameters (12mm, 16mm, 20mm and 25mm)
were considered. Three embedment depths were used; namely, 3d, 4d and 5d (d =
bar diameter). The specimens were tested at curing ages of 7, 14, 21 and 28 days.
The results show that (i) for a given depth, bond strength decreased with increase in
reinforcement diameter (ii) the higher the depth, the higher the value of bond
strength and (iii) generally there was increase in bond strength with age.