Akademik Veri Yönetim Sistemi
Sekizinci Ulusal Geosentetikler Konferansı, İstanbul, Türkiye, 16 - 17 Mayıs 2019, cilt.1, ss.297-306
In this
experimental study, 8-shaped direct tensile test and split tensile test
(Brazilian test) were used to measure the tensile strength of compacted clay
soil. The unconfined compressive strengths of the same clay samples were also
determined. Laboratory tests were performed
on Ankara clay and Kaolin clay with the addition of various proportions of
synthetic polypropylene fiber, pulverized rubber, and bentonite. This
usage of different stabilizing agents enabled the authors to observe the
reliability of the tensile strength measurement methods when soils’ mechanical
properties were significantly changed and to develop universal equations which
also can be applied on stabilized soils. The data between the results of
8-shaped direct tensile tests, split tensile tests, and unconfined compression
tests were correlated. The ratio of direct tensile strength to split tensile
strength and to unconfined compressive strength was calculated to be 1.9 and
0.4, respectively. Also, the ratio of split tensile strength to unconfined compressive
strength was calculated to be 0.2. Three empirical equations were developed according
to the Ankara clay and Kaolin clay mixtures’ tensile strengths, index
properties, and compaction characteristics and they were proposed to estimate
the tensile strength of fine-grained soils.