Atık lastik katkılı harç plak ve briketlerin termo-mekanik davranışlarının araştırılması

Bu çalışmada; atık otomobil lastiklerinin uygun geometri ve koşullarda harç içerisine ilavesinin termo-mekanik özellikler üzerindeki etkisi araştırılmaktadır. Atık bir otomobil lastiğinin, çelik telli alın yüzeyi ile çelik tel bulunmayan yanal yüzeyleri farklı amaçlarla kullanılmıştır. Çelik telli lastikler, şerit biçiminde kesilerek harç içerisine döşenmişlerdir. Çelik tel bulunmayan lastikler ise, granül boyutuna getirilerek briket içerisinde agrega olarak kullanılmıştır. Harç numunelerde; farklı miktar ve dizilişin harç numunenin ısıl yalıtım performansı üzerinde etkisi araştırılmıştır. Briket numunelerde ise ilave edilen atık lastik miktarının, ısıl yalıtım performansı ile fiziko-mekanik özellikler üzerindeki etkisi araştırılmıştır. Atık lastik katkı miktarına bağlı olarak yalıtımda sağlanan minimum iyileşme aralıkları; harç numuneler için % 6.5–13.3 ve briket numuneler için ise % 4.5 – 10.8 olarak bulunmuştur. Diğer taraftan, atık lastik katkısı ile briket numunelerin mekanik özelliklerinde önemli seviyede azalmalar, fiziksel özelliklerde ise bazı iyileşmeler söz konusudur. En çarpıcı iyileşme; briket ağırlığının % 29’a varan oranlarda azalmasıdır.

Investigation of thermo-mechanical behaviors of scrap rubber added mortar plate and bricks

In this study, the effect of adding scrap automobile tire pieces at appropriate conditions and geometries on the thermo-mechanical properties of mortars are investigated. The front surface with steel belt and the side surface without steel belt of a scrap automobile tire are used with the different purposes. The tire parts with steel belt are placed into mortar after cutting them in stripe form. The tire parts without steel belt are used as aggregate in bricks after grinding into granule dimensions. The effect of different amounts and arrangements of strip rubbers on the thermal insulation performance are investigated for mortar specimens. The amount of added-granule rubbers on thermal insulation performance and physico-mechanical properties are examined for the bricks. The percentage-wise improvements in thermal insulation performance have nearly varied between 6.5-13.3 % and 5- 11 % for mortar and brick specimens, respectively, depending on the amount of rubber used. The addition of scrap rubber has significantly decreased the mechanical properties but provided some degree of improvements in physical properties. The most striking improvement in physical properties is the decrease of the unit weight of bricks up to % 29.

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