STRUCTURAL BEHAVIOR OF SELF CURING REINFORCED CONCRETE FLAT SLABS WITH OPENINGS

Document Type : Original Article

Authors

1 Lecturer , Civil Engineering Department., Higher Institute of Engineering and Technology Kafr El-Sheikh.

2 Professor, Civil Engineering Department, Faculty of Eng., Menoufiya University.

Abstract

Self curing concrete (SCC) is a new trend on construction industry. Flat plates are the most commonly used slab system today for multistory
reinforced concrete hotels, hospitals, and apartment houses. In this investigation the focus will be on the effect of the reinforcement ratio and the
effect of central square opening size on the behavior of self curing reinforced concrete flat slabs, This goal is achieved through the studying the
structural behavior of ten RC tested slabs. The experimental program was carried out on ten reinforced concrete plate of (120 x 120 x 7) cm
resting on four supports and subjected to concentrated load. The load was applied gradually in increments to record the first crack load, the
failure load and the deflections at each load increment. Comparative study between the experimental results and previous research on high
strength concrete slabs were performed. Self curing concrete flat slabs were recorded higher cracking loads than high strength concrete flat slabs.
Deflections recorded from SCC were greater than deflection recorded from high strength concrete slabs.

Keywords

ERJ. Engineering Research Journal
Volume 42, Issue 2
April 2019
Pages 125-131

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