University of Tabriz Journal of Civil and Environmental Engineering 2008-7918 51 102 2021 05 22 Field and Laboratory Study of the Effect of Type of Emulsion Bitumen and Chip Seal Aggregate Size Applied on Roller Concrete Pavement Field and Laboratory Study of the Effect of Type of Emulsion Bitumen and Chip Seal Aggregate Size Applied on Roller Concrete Pavement 35 46 10783 10.22034/jcee.2020.10783 FA Ali Bordiuness Faculty of Civil Engineering, Yazd University, Yazd Mohammad Mehdi Khabiri Faculty of Civil Engineering, Yazd University, Yazd Journal Article 2018 07 13 The pavement engineering approach in recent decades has been to develop the use of cement in pavements, including concrete pavement, in particular roller concrete pavement. Some problems with the implementation and application of this type of procedure have led researchers to focus on the subject matter of this type of pavement. In this respect, one of the problems with the level of roller concrete, which, in technical terms, is “surface wear” Known as surface abrasion and surface cracks. Surface abrasion, in addition to reducing the thickness of the pavement layer and defective bearing capacity, in the amount of surface friction and creating a driver safety problem due to the dispersion and throwing of aggregates, it also has a negative effect on the surrounding and passing vehicles. Repair and maintenance is an optimal and economical solution in road pavement management. The use of Chip Seal as preventive maintenance is a two option maintenance for low-volume traffic in highway pavements (Vaitkus et al., 2018, Khabiri, 2005), In previous studies, micronutrient aggregate has been used more than usual, as an example of research on the effect of surface aggregates and bitumen on the performance of peeled aggregates in chip seal (Aktas et al., 2013). The main purpose of this research is to use a fine grading and emulsion bitumen with a rubber powder additive in roller compacted concrete pavement. The pavement engineering approach in recent decades has been to develop the use of cement in pavements, including concrete pavement, in particular roller concrete pavement. Some problems with the implementation and application of this type of procedure have led researchers to focus on the subject matter of this type of pavement. In this respect, one of the problems with the level of roller concrete, which, in technical terms, is “surface wear” Known as surface abrasion and surface cracks. Surface abrasion, in addition to reducing the thickness of the pavement layer and defective bearing capacity, in the amount of surface friction and creating a driver safety problem due to the dispersion and throwing of aggregates, it also has a negative effect on the surrounding and passing vehicles. Repair and maintenance is an optimal and economical solution in road pavement management. The use of Chip Seal as preventive maintenance is a two option maintenance for low-volume traffic in highway pavements (Vaitkus et al., 2018, Khabiri, 2005), In previous studies, micronutrient aggregate has been used more than usual, as an example of research on the effect of surface aggregates and bitumen on the performance of peeled aggregates in chip seal (Aktas et al., 2013). The main purpose of this research is to use a fine grading and emulsion bitumen with a rubber powder additive in roller compacted concrete pavement. https://ceej.tabrizu.ac.ir/article_10783_f3a4e85351ca3b2bb47c870492137a76.pdf