Sürdürülebilir Kalkınma Amaçları

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Yazarlar

• Akpolat, Mustafa(1)
• Alataş, Taner(1)
• Barros, J.(1)
• Cachim, P.(1)
• El Naggar, H.(1)
• Erdem, Omer Alper(1)
• Erol, Nida Demirtas(1)
• Kök, Baha Vural(1)
• Ozdemir, Ahmet Münir(1)
• Yalcin, Beyza Furtana(1)
• Yalcin, Erkut(1)
• Yalçın, Erkut(1)
• Yamaç, Özge Erdoğan(1)
• Yilmaz, Mehmet(1)
• Yılmaz, Mehmet(1)
• Çakli, Sukran(1)
• Çeloğlu, M. Ertuğrul(1)

• BildiriAçık Erişim2024/r/munzur/1886
  Investigation of the Effects of Different Modified Asphalts on Storage Stability

  Yalcin, Beyza Furtana; Yilmaz, Mehmet; Yalcin, Erkut; Ozdemir, Ahmet Münir; El Naggar, H.; Barros, J.; Cachim, P.

  In this study, the storage stability of modified bitumen prepared with bitumen additives styrene-butadiene-styrene (SBS) and American Gilsonite (AG) was evaluated. For this purpose, modified bitumen was prepared by using different ratios of each additive type. The prepared modified bitumens were subjected to storage stability test according to EN 13399 standard. Penetration, softening point and rotational viscometry tests were performed on the samples subjected to storage stability test. As a result of the penetration and softening point tests of the samples prepared with SBS after storage stability, it was determined that the penetration and softening point values of the samples obtained from the upper part of the tube were higher. This is thought to be due to the accumulation of SBS, which has a lower specific gravity than bitumen, in the upper part of the tube during the storage stability test. Considering the viscosity test results, it was determined that the viscosity values of the modified bitumen samples obtained from the upper part of the tubes were higher than the samples obtained from the lower part of the tubes.

  İncele
• MakaleAçık Erişim2019Scopus SJRQ2/r/munzur/3332
  Effect of gilsonite use on storage stability of styrene-butadiene-styrene modified bitumen

  Yalçın, Erkut; Çeloğlu, M. Ertuğrul; Akpolat, Mustafa; Yamaç, Özge Erdoğan; Alataş, Taner; Kök, Baha Vural; Yılmaz, Mehmet

  Styrene-butadiene-styrene (SBS) polymer is one of the most preferred additives to improve performance in hot mix asphalt pavements. The storage instability, in other words, the separation of a polymer-rich phase from the bitumen-rich phase in the course of storage and transportation is one of the prevalent problems in SBS modified bitumen. The present study attempted to obtain modified bitumen at the same performance level with the SBS modified bitumen, but stable with respect to the storage stability. For this purpose, both SBS and American Gilsonite (AG) were used in modified bitumen production. It was determined that modified bitumen at the same performance level was obtained with the use of 5 % SBS or 18 % AG in bitumen modification. It was also determined that the performance levels of the modified bitumen obtained with the use of 2 % SBS + 13 % AG, 3 % SBS + 10 % AG and 4 % SBS + 6 % AG were similar. Additionally, 2 %, 3 % and 4 % SBS modified bitumen were used for the assessment of storage stability properties of the SBS modified binders. These 8 different modified bitumen samples were tested for storage stability based on the EN 13399 standard. Penetration, softening point, rotational viscometer, bending beam rheometer, and dynamic shear rheometer tests were conducted on the samples. Based on all conducted tests, it was determined that more stable binders were obtained with the use of AG and SBS in terms of storage stability compared to solely SBS modified bitumen.

  AtıfScopus18·WoS15·OpenAlex15

  İncele
• MakaleAçık Erişim2017/r/munzur/4788
  Stability of fish protein hydrolysate from heads of gilthead sea bream (Sparus aurata), european sea bass (Dicentrarchus labrax) and rainbow trout (Oncorhyncus mykiss) during storage

  Erol, Nida Demirtas; Erdem, Omer Alper; Çakli, Sukran

  In the present study, protein hydrolyzate was obtained from the head region from the wastes produced during filleting of seabream (Sparus aurata), seabass (Dicentrarchus labrax) and trout (Oncorhyncus mykiss) cultured in Turkey. After the functional and antioxidant properties of the obtained products were determined, the post-storage stability of the protein hydrolysates stored frozen for 6 months was determined by analysis. In this study, degree of hydrolysis, functional properties (protein solubility, emulsion properties, foaming properties, color properties, water holding capacity (WHC)), antioxidant properties (DPPH (1,1 -diphenyl-2-pic-ryhydrayl) free radical scavenging capacity, antioxidative activity, metal chelating) and determination of aminoacid sequencing were carried out in protein hydrolysate. To evaluate the effect of storage time on fish protein hydrolysates stored at -18 degrees C after production, the above-mentioned analyzes including functional and antioxidative properties were repeated at the end of the 6 month storage period. Results were interpreted using statistical analysis. According to the functional and antioxidative properties of fish protein hydrolyzate, the highest antioxidant activity was determined in seabream head hydrolyzate. The production yield of all fish protein hydrolysates is 5%. The functional and antioxidant properties of fish protein hydrolysates varied according to fish species.

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  AtıfWoS6·OpenAlex7

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