Effect of cocamide diethanolamide chemical on adhesion between bituminous binder and aggregates

As a result of the decrease in adhesion formed between aggregates and bituminous binder, cracks, potholes and raveling occur in the pavement. In order to increase the adhesion between aggregates and bituminous binder, the usability of Cocamide Diethanolamide which is chemical material was examined for the first time. Cocamide Diethanolamide is added to bituminous binder at a rate of 1%, 3%, 5%, 7% and 9% and homogeneously mixed using a high shear temperature-controlled mixer at 2000 rpm for 165 °C and 1 hour. In addition to the conventional bitumen experiments on the bituminous binders which are modified with different ratios of Cocamide Diethanolamide, adhesion and stripping tests were carried out. Vialit, Nicholson and California adhesion and stripping tests were carried out to examine the effect of the material used in the study on adhesion formed between bituminous binder and aggregate. According to the results of the Vialit test, it has been observed that the adhesion between the bituminous binder and aggregates increased by 87.5% as the amount of the Cocamide Diethanolamide material added to bituminous binder increased. In the Nicholson and California stripping tests, it was observed that bituminous binder which modified with 5% Cocamide Diethanolamide has significantly effective on aggregates.

Bitümlü baðlayýcý ve agregalarýn arasýndaki adezyon üzerine cocamide diethanolamide kimyasalýnýn etkisi

Agregalar ve bitümlü baðlayýcý arasýnda oluþan adezyonun azalmasý sonucunda üstyapýda çatlaklar, çukurlar ve sökülmeler meydana gelmektedir. Ýlk kez bu çalýþmada agrega ile bitümlü baðlayýcý arasýndaki adezyonu artýrmak için Cocamide Diethanolamide kimyasalýnýn kullanýlabilirliði incelenmiþtir. Bitümlü baðlayýcýya %1, %3, %5, %7 ve %9 oranlarýnda ilave edilen Cocamide Diethanolamide kimyasal malzemesinin 2000 devir/dk, 165 °C ve 1 saat süreyle yüksek devirli sýcaklýk kontrollü karýþtýrýcý kullanýlarak homojen olarak karýþýmý saðlanmýþtýr. Farklý oranlarda Cocamide Diethanolamide ile modifiye edilmiþ bitümlü baðlayýcýlar üzerinde geleneksel bitüm deneylerine ilaveten, yapýþma ve soyulma deneyleri gerçekleþtirilmiþtir. Çalýþmada kullanýlan malzemenin bitümlü baðlayýcý ve agrega arasýnda oluþan adezyona olan etkisini incelemek için Vialit, Nicholson ve Kaliforniya yapýþma ve soyulma deneyleri yapýlmýþtýr. Vialit deneyinin sonuçlarýna göre bitümlü baðlayýcýya ilave edilen Cocamide Diethanolamide malzemesinin miktarý arttýkça, bitümlü baðlayýcý ve agregalar arasýndaki yapýþma özelliðinin %87.5 oranýnda arttýðý gözlemlenmiþtir. Nicholson ve Kaliforniya soyulma deneylerinde ise, %5 Cocamide Diethanolamide ile modifiye edilmiþ bitümlü baðlayýcýnýn agregalar üzerinde önemli derecede etkili olduðu gözlemlenmiþtir.