Pomza, İgnimbirit ve Perlitin Taş Mastik Asfaltta Kullanılabilirliği

Öz

Bu çalışmada, pomza, ignimbrit (Ahlat taşı) ve perlitin taş mastik asfalt üretiminde agrega malzemesi olarak kullanılabilirliği araştırılmıştır. Bu agregalar, karayollarında kullanılmadan önce kaldırıma uygulanan standart testlere tabi tutulmuş asfalt örneklerinde filler malzeme olarak kullanılmıştır. Los Angeles aşınma oranı pomza için %73, Ahlat taşı için %78 ve perlit için %67 olarak bulunmuştur. Bu çalışmada 4 farklı tip taş mastik asfalt (TMA) yapılmıştır. Bazalt-TMA'da (BAZ-TMA); karışımda kaba agrega, ince agrega ve filler olarak bazalt kullanılmıştır. Pomza-TMA'da (POM-TMA); kaba agrega ve ince agrega olarak bazalt, filler olarak pomza kullanılmıştır. Ahlat taşı-TMA'da (AT-TMA); kaba agrega ve ince agrega olarak bazalt, filler olarak Ahlat taşı kullanılmıştır. Perlit-TMA'da (PER-TMA); kaba agrega ve ince agrega olarak bazalt, filler olarak perlit kullanılmıştır. Çalışma sonucunda BAZ-TMA stabilitesi ve akma değerleri 979 kg ve 2,88 mm olarak bulunmuştur. POM-TMA stabilitesi ve akma değerleri 940 kg ve 3,24 mm olarak bulunmuştur. AT-TMA stabilitesi ve akma değerleri 965 kg ve 3,20 mm olarak bulunmuştur. PER-TMA stabilitesi ve akma değerleri 937 kg ve 3,19 mm olarak bulunmuştur. Bu testler TMA'ın şartname referans limitlerini sağlamıştır. Test sonuçları, pomza, Ahlat taşı ve perlitin TMA karışımlarında ince veya kaba agrega olarak kullanılamayacağını göstermektedir. Test sonuçları, pomza, Ahlat taşı ve perlitin TMA karışımlarında sadece filler olarak kullanılabileceğini göstermektedir.

Anahtar Kelimeler

• Asfalt kaplama,Taş mastik asfalt (TMA),Pomza,Perlit,İgnimbirit,Ahlat taşı

Usability of Pumice, Ignimbrite and Perlite in Stone Mastic Asphalt

Öz

The usability of pumice, ignimbrite (Ahlat stone), and perlite powders as aggregate material in stone mastic asphalt production was investigated in this study. These aggregates were used as filler in asphalt samples that were subjected to standard tests applied to pavement before it can be used in highways. Los Angeles abrasion rate was found to be 73% for pumice, 78% for Ahlat stone and 67% for perlite. In this study, 4 different types of stone mastic asphalt (SMA) were made. In Basalt-SMA (BAS-SMA); basalt was used as coarse aggregate, fine aggregate and filler in the mixture. In Pumice-SMA (PUM-SMA); basalt was used as coarse aggregate and fine aggregate, and pumice was used as filler. In Ahlat Stone-SMA (AS-SMA); basalt was used as coarse aggregate and fine aggregate, and Ahlat stone was used as filler. In Perlite-SMA (PER-SMA); basalt was used as coarse aggregate and fine aggregate, and perlite was used as filler. As a result of the study, BAS-SMA stability and flow values were found to be 979 kg and 2.88 mm. PUM-SMA stability and flow values were found to be 940 kg and 3.24 mm. AS-SMA stability and flow values were found to be 965 kg and 3.20 mm. PER-SMA stability and flow values were found to be 937 kg and 3.19 mm. These tests provided reference values for the specifications of SMA. Test results show that pumice, Ahlat stone and perlite cannot be used as fine or coarse aggregates in SMA mixtures. The test results show that pumice, Ahlat stone and perlite can only be used as filler in SMA mixtures.

Anahtar Kelimeler

• Asphalt pavement,Stone mastic Asphalt (SMA),Pumice,Perlit,Ignimbrite

Kaynakça

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