Concrete Quality In Existing Reinforced Concrete Structures In The First Seismic Zone In Turkey

Year 2014, Volume: 6 Issue: 2, 21 - 26, 15.06.2014

Özer Sevim

https://doi.org/10.29137/umagd.346075

Cited By: 1

Abstract

Turkey has faced many severe earthquakes and many buildings were damaged or collapsed. One of the most important reasons of this destruction is the low quality of concrete used in the structures. In order to improve the quality of concrete, the quality supervision of concrete is significant matter for accomplishing safety in reinforced concrete structures. For this purpose, test results of standard cube samples (150x150x150 mm) are collected from all cities located in first seismic zone in Turkey. The concrete quality is investigated in terms of years and concrete classes on the basis of two statistical parameters, mean and coefficient of variation of compressive strength of cube samples. The present study indicates that higher concrete classes have been used over the years. Besides, the mean concrete compressive strength is increased on the average of % 60. Results point out that higher concrete class is used in comparison with the years before the major earthquakes August 17th Kocaeli and the November 12th Düzce earthquakes in 1999.

Keywords

Concrete quality, Concrete compressive strength, Concrete class, Coefficient of variation

References

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