Effectiveness of Horizontal Rebar on Concrete Block Retaining Wall Strength
Journal Title: American journal of Engineering Research - Year 2016, Vol 5, Issue 9
Abstract
The effectiveness of including a horizontal rebar compared to only a vertical rebar in concrete filled core interlocking concrete block retaining wall sections was investigated with respect to the horizontal retaining force. Experimental results for three specimens of interlocking blocks with vertical rebar and concrete filled cores showed an average horizontal retaining force of 24546 N ± 5.7% at an average wall deflection of 13.3 mm. Experimental results for three wall specimens of interlocking blocks with vertical rebar, horizontal rebar and concrete filled cores showed an average horizontal retaining force of 80776 N ± 13.4% at an average wall deflection of 48.2 mm. The average retaining force for the wall section with both horizontal and vertical rebar was 229% greater than the average retaining force for the wall section with only vertical rebar. The plot of retaining force vs wall deflection indicated that the retaining wall with only vertical rebar will collapse suddenly on reaching the point of structural failure. The retaining wall with both horizontal and vertical rebar showed a gradual decrease in retaining force after the point of structural which prevented the sudden collapse of the wall.
Authors and Affiliations
Krishpersad Manohar1 ,, Rikhi Ramkissoon2
Keywords
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