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Burak Şengöz - One of the best experts on this subject based on the ideXlab platform.

  • Investigation of the Properties of Warm Mix Asphalt Involving Organic Additive
    2018
    Co-Authors: Ali Topal, Baha Vural Kök, Derya Kaya, Burak Şengöz, Peyman Aghazadeh Dokandari, Mehmet Yilmaz
    Abstract:

    Demand for sustainable pavements increases day by day in asphalt paving industry. Warm Mix Asphalt (WMA) technology has begun to be an interesting topic for researchers owing to sustainability and environmental issues. Within the scope of this study, the effect of an organic WMA additive was evaluated in terms of mixture characteristics and performance. The fundamental and rheological properties of Bitumen samples involving organic WMA additive were determined by conventional Bitumen tests and dynamic shear rheometer (DSR). Mixtures modified with organic WMA additives were produced according to Marshall mix design method and the Optimum Bitumen Content of the samples were determined. Following the determination of Optimum Bitumen Content, the effect of the organic WMA additive was investigated in terms of indirect tensile stiffness modulus, fatigue and creep behaviour. Hamburg wheel tracking device was also applied to evaluate the permanent deformation characteristics of WMA mixtures in comparison to Hot Mix Asphalt (HMA) mixtures. The results appraised the effect of the organic WMA additive on rheological and performance characteristics of bituminous mixtures.

  • evaluation of steel slag coarse aggregate in hot mix asphalt concrete
    Journal of Hazardous Materials, 2009
    Co-Authors: Perviz Ahmedzade, Burak Şengöz
    Abstract:

    This paper presents the influences of the utilization of steel slag as a coarse aggregate on the properties of hot mix asphalt. Four different asphalt mixtures containing two types of asphalt cement (AC-5; AC-10) and coarse aggregate (limestone; steel slag) were used to prepare Marshall specimens and to determine Optimum Bitumen Content. Mechanical characteristics of all mixtures were evaluated by Marshall stability, indirect tensile stiffness modulus, creep stiffness, and indirect tensile strength tests. The electrical sensitivity of the specimens were also investigated in accordance with ASTM D257-91. It was observed that steel slag used as a coarse aggregate improved the mechanical properties of asphalt mixtures. Moreover, volume resistivity values demonstrated that the electrical conductivity of steel slag mixtures were better than that of limestone mixtures.

Serdal Terzi - One of the best experts on this subject based on the ideXlab platform.

  • The investigation of Polyamide fiber as an additive in HMA
    Road and Rail Infrastructure V, 2018
    Co-Authors: Ekinhan Eriskin, Kemal Armagan, Sebnem Karahancer, Caglar Sivri, Mehmet Saltan, Serdal Terzi
    Abstract:

    The number of heavy vehicles on traffic and traffic volume are extremely increasing nowadays. Consequently, maintenance costs are increasing too. So, durability becomes necessary in asphalt pavement design and construction. For this purpose, asphalt industry partners are investigating innovative technologies and additives for Hot Mix Asphalt (HMA) Pavements. In this study, the utility of Polyamide 6.6, which is a synthetically produced flexible and highly thermoplastic material that have good mechanical and physical properties in terms within the nylon species, was investigated in HMA as a fiber. For examining the test results, specimens were prepared in four different proportions including reference specimens. Volumetric mix design was used to determine the Optimum Bitumen Content. Then Indirect Tensile Strength (ITS) Test was applied to HMA specimens. The aim of this research was to identify the usability of Polyamide 6.6 in HMA mixtures as a fiber, and the engineering properties of the specimens with Polyamide 6.6 fiber.

  • Utility of polyparaphenylene terephtalamide fiber in hot mix asphalt as a fiber
    Construction and Building Materials, 2016
    Co-Authors: Nihat Morova, Sebnem Karahancer, Mehmet Saltan, Serdal Terzi, Sercan Serin, D. Ozdemir Kucukcapraz, Ekinhan Eriskin
    Abstract:

    Abstract In this study, utility of polyparaphenylene terephtalamide (PT) was investigated in hot mix asphalt as a fiber. For this aim samples were prepared with limestone aggregate at different proportions. Marshall Stability test was applied and Optimum Bitumen Content was determined. In the second stage of the study, new samples were prepared using different polyparaphenylene terephtalamide fiber (PTF) rates of 0.25%, 0.50%, 0.75%, 1.00%, 1.50%, 2.00% based on Optimum Bitumen Content. When examining test results, samples which prepared using 0.25% PTF rate gave highest Marshall Stability result. At the final stage of the study, different Bitumen Contents (4.15%, 4.65% and 5.15%) were conducted for the best fiber rate (0.25%) and close to this result (0.50% and 0.75%). Thus, the effect of Bitumen Content on determined fiber rate at the second stage of the study was investigated. Also Indirect Tensile (IDT) Strength Test was performed on hot mix asphalt (HMA) samples preparing at 0.25%, 0.50% and 0.75% fiber rates and moisture sensitivities were determined. All results showed that, the best fiber rate was 0.25% and determined Optimum Bitumen Content remain constant with the fiber additive for the reference samples. Besides, some sample groups which prepared using different PTF rates proved the specification limits and it was said that; PTF can be used in asphalt concrete as a fiber additive.

  • Evaluation of andesite waste as mineral filler in asphaltic concrete mixture
    Construction and Building Materials, 2012
    Co-Authors: İsmail Uzun, Serdal Terzi
    Abstract:

    Abstract In the study, the use of andesite collected during the shaping process of andesite blocks in asphalt mixtures as mineral filler was investigated. Samples with limestone aggregate were prepared and the Optimum Bitumen Content was then determined by the Marshall Stability Test procedure. Using Optimum Bitumen Content and the same limestone aggregate and aggregate gradation as the andesite waste mineral filler (under No. 200 sieve), the mixtures were prepared and their stability values determined. When comparing all mixtures, the andesite mineral filler with 6% Bitumen Content showed the highest stability, but this stability value was less than the limestone mixtures with 4% Bitumen Content. In addition, 6% in the andesite and limestone filler Content in the samples, the Optimum percentage of Bitumen was investigated. Following this, it was found that 5% Bitumen Content provided the best stability value. As a result, especially in areas where there is widespread andesite waste, if transportation costs do not exceed the cost of limestone, andesite waste can be used instead of limestone in asphalt concrete mixtures as mineral filler.

  • Investigation of usability of steel fibers in asphalt concrete mixtures
    Construction and Building Materials, 2012
    Co-Authors: Sercan Serin, Mehmet Saltan, Nihat Morova, Serdal Terzi
    Abstract:

    Abstract In this study, the usability of steel fibers in order to bear the stresses occurring at the surface layer of pavement, which are directly subjected to the traffic effects, was investigated. In this context, specimens were produced and tested under Marshall Stability Test, and the Optimum Bitumen Content value for the aggregates sample to be used was determined. Results showed that based on the determined value for the Optimum Bitumen Content (5.5%), three specimens for each of a series of different fiber rates (0%, 0.25%, 0.50%, 0.75%, 1.0%, 1.5%, 2.0%, 2.5%) were prepared and the Optimum value for fiber rate that results in the best stability value was determined as 0.75%. As a result, steel fiber additions can be used in binder course of flexible pavement because of its positive stability impact.

Nihat Morova - One of the best experts on this subject based on the ideXlab platform.

  • Utility of polyparaphenylene terephtalamide fiber in hot mix asphalt as a fiber
    Construction and Building Materials, 2016
    Co-Authors: Nihat Morova, Sebnem Karahancer, Mehmet Saltan, Serdal Terzi, Sercan Serin, D. Ozdemir Kucukcapraz, Ekinhan Eriskin
    Abstract:

    Abstract In this study, utility of polyparaphenylene terephtalamide (PT) was investigated in hot mix asphalt as a fiber. For this aim samples were prepared with limestone aggregate at different proportions. Marshall Stability test was applied and Optimum Bitumen Content was determined. In the second stage of the study, new samples were prepared using different polyparaphenylene terephtalamide fiber (PTF) rates of 0.25%, 0.50%, 0.75%, 1.00%, 1.50%, 2.00% based on Optimum Bitumen Content. When examining test results, samples which prepared using 0.25% PTF rate gave highest Marshall Stability result. At the final stage of the study, different Bitumen Contents (4.15%, 4.65% and 5.15%) were conducted for the best fiber rate (0.25%) and close to this result (0.50% and 0.75%). Thus, the effect of Bitumen Content on determined fiber rate at the second stage of the study was investigated. Also Indirect Tensile (IDT) Strength Test was performed on hot mix asphalt (HMA) samples preparing at 0.25%, 0.50% and 0.75% fiber rates and moisture sensitivities were determined. All results showed that, the best fiber rate was 0.25% and determined Optimum Bitumen Content remain constant with the fiber additive for the reference samples. Besides, some sample groups which prepared using different PTF rates proved the specification limits and it was said that; PTF can be used in asphalt concrete as a fiber additive.

  • investigation of usability of basalt fibers in hot mix asphalt concrete
    Construction and Building Materials, 2013
    Co-Authors: Nihat Morova
    Abstract:

    Abstract In this study, the usability of basalt fibers in order to bear the stresses occurring at the surface layer of pavement, which are directly subjected to the traffic effects, was investigated. In this context, specimens were produced and tested under Marshall Stability Test, and the Optimum Bitumen Content value for the aggregates sample to be used was determined. Based on the determined value for the Optimum Bitumen Content (5%), three specimens for each of a series of different fiber ratios were prepared. The Optimum value for fiber ratio that results in the best stability value was determined. In order to determine whether the best fiber ratio (0.50%) might result in a better stability value for other Bitumen Contents, extra specimens were prepared with different Bitumen amounts and with the best and five different fiber ratio values close to the Optimum value. These specimens were tested under Marshall Stability Test and the obtained results were evaluated.

  • Investigation of usability of steel fibers in asphalt concrete mixtures
    Construction and Building Materials, 2012
    Co-Authors: Sercan Serin, Mehmet Saltan, Nihat Morova, Serdal Terzi
    Abstract:

    Abstract In this study, the usability of steel fibers in order to bear the stresses occurring at the surface layer of pavement, which are directly subjected to the traffic effects, was investigated. In this context, specimens were produced and tested under Marshall Stability Test, and the Optimum Bitumen Content value for the aggregates sample to be used was determined. Results showed that based on the determined value for the Optimum Bitumen Content (5.5%), three specimens for each of a series of different fiber rates (0%, 0.25%, 0.50%, 0.75%, 1.0%, 1.5%, 2.0%, 2.5%) were prepared and the Optimum value for fiber rate that results in the best stability value was determined as 0.75%. As a result, steel fiber additions can be used in binder course of flexible pavement because of its positive stability impact.

Mehmet Saltan - One of the best experts on this subject based on the ideXlab platform.

  • The investigation of Polyamide fiber as an additive in HMA
    Road and Rail Infrastructure V, 2018
    Co-Authors: Ekinhan Eriskin, Kemal Armagan, Sebnem Karahancer, Caglar Sivri, Mehmet Saltan, Serdal Terzi
    Abstract:

    The number of heavy vehicles on traffic and traffic volume are extremely increasing nowadays. Consequently, maintenance costs are increasing too. So, durability becomes necessary in asphalt pavement design and construction. For this purpose, asphalt industry partners are investigating innovative technologies and additives for Hot Mix Asphalt (HMA) Pavements. In this study, the utility of Polyamide 6.6, which is a synthetically produced flexible and highly thermoplastic material that have good mechanical and physical properties in terms within the nylon species, was investigated in HMA as a fiber. For examining the test results, specimens were prepared in four different proportions including reference specimens. Volumetric mix design was used to determine the Optimum Bitumen Content. Then Indirect Tensile Strength (ITS) Test was applied to HMA specimens. The aim of this research was to identify the usability of Polyamide 6.6 in HMA mixtures as a fiber, and the engineering properties of the specimens with Polyamide 6.6 fiber.

  • Utility of polyparaphenylene terephtalamide fiber in hot mix asphalt as a fiber
    Construction and Building Materials, 2016
    Co-Authors: Nihat Morova, Sebnem Karahancer, Mehmet Saltan, Serdal Terzi, Sercan Serin, D. Ozdemir Kucukcapraz, Ekinhan Eriskin
    Abstract:

    Abstract In this study, utility of polyparaphenylene terephtalamide (PT) was investigated in hot mix asphalt as a fiber. For this aim samples were prepared with limestone aggregate at different proportions. Marshall Stability test was applied and Optimum Bitumen Content was determined. In the second stage of the study, new samples were prepared using different polyparaphenylene terephtalamide fiber (PTF) rates of 0.25%, 0.50%, 0.75%, 1.00%, 1.50%, 2.00% based on Optimum Bitumen Content. When examining test results, samples which prepared using 0.25% PTF rate gave highest Marshall Stability result. At the final stage of the study, different Bitumen Contents (4.15%, 4.65% and 5.15%) were conducted for the best fiber rate (0.25%) and close to this result (0.50% and 0.75%). Thus, the effect of Bitumen Content on determined fiber rate at the second stage of the study was investigated. Also Indirect Tensile (IDT) Strength Test was performed on hot mix asphalt (HMA) samples preparing at 0.25%, 0.50% and 0.75% fiber rates and moisture sensitivities were determined. All results showed that, the best fiber rate was 0.25% and determined Optimum Bitumen Content remain constant with the fiber additive for the reference samples. Besides, some sample groups which prepared using different PTF rates proved the specification limits and it was said that; PTF can be used in asphalt concrete as a fiber additive.

  • Use of glass waste as mineral filler in hot mix asphalt
    Science and Engineering of Composite Materials, 2015
    Co-Authors: Mehmet Saltan, Betül Öksüz
    Abstract:

    AbstractThe use of resources is increasing due to continuous increase in world population and rapid industrialization, while natural resources are being exhausted day by day. Usage of waste materials or by-products in highway construction has substantial environmental and economic benefits. In this study, the usage of cullet and waste glass bottle dust as mineral filler material in hot mix asphalt as an alternate to traditional crushed stone dust was investigated. Optimum Bitumen Content was determined by the Marshall mix design method by using six different Bitumen Contents (4.0%, 4.5%, 5.0%, 5.5%, 6.0%, and 6.5%). With the Optimum Bitumen Content, three different mineral filler types (cullet, glass bottle waste, and stone dust) and six different filler ratios (4%, 5%, 6%, 7%, 8%, and 9%) were used to prepare asphalt mixture samples. Samples were performed using the Marshall stability test, and the results were compared. It is concluded that cullet and glass bottle waste can be used in asphalt mixtures as a mineral filler alternate to crushed stone dust if the economic and environmental factors favor it.

  • Investigation of usability of steel fibers in asphalt concrete mixtures
    Construction and Building Materials, 2012
    Co-Authors: Sercan Serin, Mehmet Saltan, Nihat Morova, Serdal Terzi
    Abstract:

    Abstract In this study, the usability of steel fibers in order to bear the stresses occurring at the surface layer of pavement, which are directly subjected to the traffic effects, was investigated. In this context, specimens were produced and tested under Marshall Stability Test, and the Optimum Bitumen Content value for the aggregates sample to be used was determined. Results showed that based on the determined value for the Optimum Bitumen Content (5.5%), three specimens for each of a series of different fiber rates (0%, 0.25%, 0.50%, 0.75%, 1.0%, 1.5%, 2.0%, 2.5%) were prepared and the Optimum value for fiber rate that results in the best stability value was determined as 0.75%. As a result, steel fiber additions can be used in binder course of flexible pavement because of its positive stability impact.

  • BITUMINOUS MIX DESIGN CONSIDERATIONS IN TURKEY
    2000
    Co-Authors: Mustafa Karasahin, Mesut Tigdemir, Mehmet Saltan
    Abstract:

    In this study, both Marshall and Indirect tensile test equipment was used in order to find a relationship between these equipments. Specimens were prepared using Marshall mould and standard Marshall compactor. In order to determine the Optimum Bitumen Content for each grading of granular materials three samples were prepared for each Bitumen Content. The samples were then tested by Marshall test equipment. After having determined the Optimum Bitumen Content the samples were then prepared according to the Optimum Bitumen Content. Fatigue and plastic deformation test were then carried out on the samples. Samples were then prepared for 5% Optimum Bitumen Content. It was seen that the longer fatigue life was obtained at the Optimum Bitumen Content as compared with the other samples. Therefore, designing the mix with Marshall equipment test results guarantee the longer fatigue life. However, as the Marshall equipment test results does not give any information about plastic deformation life, using indirect tensile test equipment for the determination of plastic deformation helps to develop better bituminous mixtures. For the covering abstract see ITRD E107185.

Perviz Ahmedzade - One of the best experts on this subject based on the ideXlab platform.

  • evaluation of steel slag coarse aggregate in hot mix asphalt concrete
    Journal of Hazardous Materials, 2009
    Co-Authors: Perviz Ahmedzade, Burak Şengöz
    Abstract:

    This paper presents the influences of the utilization of steel slag as a coarse aggregate on the properties of hot mix asphalt. Four different asphalt mixtures containing two types of asphalt cement (AC-5; AC-10) and coarse aggregate (limestone; steel slag) were used to prepare Marshall specimens and to determine Optimum Bitumen Content. Mechanical characteristics of all mixtures were evaluated by Marshall stability, indirect tensile stiffness modulus, creep stiffness, and indirect tensile strength tests. The electrical sensitivity of the specimens were also investigated in accordance with ASTM D257-91. It was observed that steel slag used as a coarse aggregate improved the mechanical properties of asphalt mixtures. Moreover, volume resistivity values demonstrated that the electrical conductivity of steel slag mixtures were better than that of limestone mixtures.

  • Influence of carbon black on the mechanical and electrical properties of asphalt mixtures
    Indian Journal of Engineering and Materials Sciences, 2007
    Co-Authors: Perviz Ahmedzade, Tacettin Geçkil
    Abstract:

    The effect of carbon black used as a filler on the mechanical and electrically conductive properties of two types of asphalt mixtures was investigated. The asphalt mixtures in which carbon black and limestone fillers having the same aggregate gradation were prepared and Optimum Bitumen Content was determined by Marshall stability test. Mechanical characteristics of the carbon black and control mixtures were evaluated by Marshall stability, indirect tensile stiffness modulus, creep stiffness, and indirect tensile strength tests. Based on these tests values it is clear that the best results were obtained from mixtures with carbon black filler. Obtained volume resistivity values of the all mixtures indicate that mixtures with carbon black filler have higher electrical conductivity than that of the control mixtures. The results of investigation showed that carbon black improves both mechanical and electrically conductive properties of the asphalt mixtures.