Atık lastik parçalarıyla güçlendirilmiş iri taneli zeminlerin donma-çözülme sonucu mukavemetlerindeki değişimin incelenmesi

İklimsel farklılıkların sıkça yaşandığı bölgelerde mühendislik yapıları farklı yükler altında olumsuz etkilemektedir. Bu etkinin iri taneli zeminlerde çeşitli atık malzemeler katılımıyla azaltılması yönünde çalışmalar yapılmaktadır. Bu çalışma da atık lastik parçalarıyla (AL) güçlendirilmiş iri taneli zeminin (TZ) donma-çözülme sonucu mukavemetlerindeki değişim incelenmiştir. Deneyler standart proktor enerjisi altında sıkıştırılması ile hazırlanan iri taneli zemin numuneleri üzerinde yürütülmüştür. Bu iri taneli zemin örneğine ve atık lastik ilavesi yapılarak 1, 7 ve 8 günlük çalışma odası sıcaklığındaki ) kür sonucu, serbest basınç mukavemetleri belirlenmiştir. En yüksek mukavemet artışı; TZ AL ( ) karışımda , TZ+ AL ( ) karışımda ve TZ+ AL ( ) karışımda ise oranında olmuştur. Bu karışımlar, donma-çözülme deneyine tabii tutulmuştur. Deney sonucunda, TZ+%0.5AL (1.18 mm) karışımın mukavemeti ve TZ+ AL ( ) karışımının mukavemeti oranında düşerken, TZ+ AL ( ) karışımın mukavemeti ise oranında artmıştır.

Anahtar Kelimeler:

İri taneli zemin, Atık lastik, Donma-çözülme, Serbest basınç mukavemeti

Investigation on the variation of strength of coarse grained soils reinforced with waste tires pieces as a result of freezing and thawing cycles

In regions where climatic differences frequently are affects especially engineering structures under different loads. This effect is being studied to reduce the participation of various waste materials in coarse grained soil. In this study, the changes in strength of coarse grained soil (CG) reinforced with scrap tire pieces (ST) was investigated under freezing- thawing conditions. Experiments were conducted on coarse grained samples prepared by compression under standard proctor energy. Unconfined compressive strength values of coarse grained soil sample with and addition of scrap tires were determined at studied temperature ( oC) on days 1, 7 and 28. The highest increase rate of strength was in CG+ ST ( ) mixture, in CG+ ST ( ) mixture and in CG+ ST ( ) mixture. The freeze-thaw test was applied on this mixture. The results showed that while the strength rate of CG+ ST ( ) and CG+ ST ( ) mixtures decreased to and respectively; the strength of CG+ ST ( ) mixture increased to

Keywords:

Coarse grained soil, Scrap tires, Freeze-thaw, Unconfined compressive strength,

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