Nano Malzemelerle Modifiye Edilen Bitüm ve Bitümlü Karışımların Fiziksel ve Reolojik Özelliklerinin İncelenmesi: Literatür Araştırması

İnşaa edilen yol kaplamaları; olumsuz iklim şartları, artan ve tekrarlı trafik yüklerden kaynaklı deformasyona uğramaktadır. Servis ömrünü tamamlayamadan bozulmaya uğrayan yollarda yapılan bakım ve onarım çalışmaları ise ülke ekonomisini önemli ölçüde etkilemektedir. Bu sebepten dolayı sürdürülebilir yol üstyapıları için gelişen teknoloji ve katkı malzemelerinin de kullanımıyla kaplamaların dayanımı arttırılarak servis ömrü uzatılabilmektedir. Bitüm ile farklı katkı malzemeleri modifiye edilerek dayanımı yüksek üstyapılar inşaa edilmekte ve kullanıma sunulmaktadır. Bu katkılar; endüstriyel atıklar, geri dönüştürülmüş malzemeler, polimerler ve nano malzemeler olarak sayılabilir. Nanoteknolojinin de gelişmesiyle bitüm modifikasyonunda nano malzemelerin kullanımı yaygınlaşmaya başlamıştır. Yapılan çalışmalarda bitüm; nanokiller, nanosilika, nano-CaCO3, nano-TiO2, nano karbon siyahı ve daha başka malzemelerle modifiye edilerek, bitümün reolojik ve fiziksel özellikleri incelenmiştir. Nano malzemelerin kullanılması ile bitümün, durabilitesi, suya karşı hassasiyeti, depolama stabilitesi ve daha birçok özelliğinde önemli iyileşmeler kaydedilmiştir. Bu çalışmamızda bu önemli konuda yapılan araştırmalar ve bu araştırmalar neticesinde elde edilen bulgular sunulacaktır.

Anahtar Kelimeler:

Bitüm, Modifikasyon, Bitümlü karışımlar

Investigation of Physical and Rheological Properties of Bitumen and Bituminous Mixtures Modified with Nanomaterials: Literature Research

Road pavements are subject to deformation due to adverse climatic conditions, increasing and repetitive traffic loads. Maintenance and repairing works on damaged roads before completing their service life significantly affect the economy. For this reason, the service life of the pavements can be extended by increasing the strength of the coatings by means of developing technology and additives for sustainable road pavements. High-strength superstructures are built and put into service by modifying bitumen and different additive materials. These contributions can be named as industrial wastes, recycled materials, polymers and nanomaterials. With the development of nanotechnology, the use of nano materials in bitumen modification has become widespread. The rheological and physical properties of bitumen were investigated by modifying bitumen with nanoclay, nanosilica, nano calcium carbonate (nano-CaCO3), titanium dioxide nanoparticle (nano-TiO2), nano carbon black obtained from recycled petrochemicals and other materials. With the use of nanomaterials, significant improvements have been achieved in many properties of bitumen, such as durability, water sensitivity and storage stability and resistance to deformation. In this article, the studies in the literature about the nanomaterials mentioned above have been investigated and it is aimed to create a different perspective for researchers by presenting the findings obtained as a result of these researches.

Keywords:

Bitumen, Modification, Bituminous mixtures,

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