TY - JOUR T1 - EXAMINATION OF STORAGE STABILITY BEHAVIOUR OF POLYMER MODIFIED BITUMEN INVOLVING NANOCLAY AU - Öner, Jülide PY - 2019 DA - June JF - Eurasian Journal of Civil Engineering and Architecture JO - EJCAR PB - Serkan ŞAHİNKAYA WT - DergiPark SN - 2602-3865 SP - 49 EP - 55 VL - 3 IS - 1 LA - en AB - In recent years, the use ofnanomaterials has become widespread in the modification of bitumen due todeveloping nanotechnology. It has been observed that the physical and rheologicalproperties of base and modified bitumens have improved as a result of the useof nanomaterials. In addition, the use of nanomaterials for the solution of thephase separation problem seen for the polymer modified bitumens had a positiveeffect. In this study, the effect of adding nanoclay into the polymer modifiedbitumen samples on storage stability was investigated.Styrene-Butadiene-Styrene (SBS), which is a widely used polymer type andHalloysite is a nanoclay type were determined as additives. The additive ratioswere determined as 3%, 5% for SBS and 2%, 4% for Halloysite according to thestudies in the literature. Modified bitumen samples were produced by high shearmixer. The polymer was added into the base bitumen then Halloysite was added into the polymer modified bitumen during the production process. After themodified bitumen production, thin section samples were taken from each sampleand examined under a microscope and the samples were subjected to the storagestability test. According to the results of the experiments, it was observedthat Halloysite additive improves storage stability. However, this improvementis more effective in low polymer percentage. As the percentage of polymerincreases, the improvement effect decreases, phase separation increases. KW - Modified Bitumen KW - Polymer KW - Nanoclay KW - Storage Stability KW - Phase Separation CR - Airey, G. D. (2002). “Rheological evaluation of EVA polymer modified bitumen.” Journal of Construction and Building Materials, Vol. 16, pp. 473-487. CR - Chen, J., Liao, M. and Shiah, M. (2002).” Asphalt modified by SBS triblock copolymermorphology and model.”Journal of Materials in Civil Engineering, Vol. 14, No. 3, pp. 224-229. CR - Galooyak, S. S., Dabir, B., Nazarbeygi, A. E. and Moeini, A. (2010).“Rheologicalproperties and storage stability of bitumen/SBS/montmorillonite composites.”Consturction and Building Materials, Vol. 24, pp.300-307. CR - Golestani, B., Nejad, F. M. and Galooyak, S. S. (2012). “Performance evaluation oflinear and nonlinear nanocomposite modified asphalts.”Consturction and BuildingMaterials, Vol. 35, pp. 197-203. CR - Jahromi, S. G. and Khodaii, A. (2009).“Effects of nanoclay on rheological properties of bitumen binder.”Construction and Building Materials, Vol. 23, pp. 2894-2904. CR - KGM, (2009).Modified bitumen and bituminous binders - modified bitumen storage determination of stability,Turkish Standard Institute, Ankara, Turkey. CR - Kraton®. (2012). Kraton® D1101A Polymer, Data document. CR - Topal, A., Sureshkumar, M. S., Şengöz, B. and Polacco, G. (2012).“Rheology and microstructure of polymer-modified asphalt nanocomposites.”International Journal of Materials Research, Vol. 103, pp. 1271-1276. CR - Vonk, W. C. and Gooswilligen, G. (1989).“Improvement of paving grade bitumens with SBS polymers.”Proceeding of the Fourth Eurobitume Symposium, pp. 289-303. UR - https://dergipark.org.tr/tr/pub/ejcar/issue//562554 L1 - https://dergipark.org.tr/tr/download/article-file/734042 ER -