Arabian Journal for Science and Engineering最新文献_第3页

Investigation of Screw Pile Behavior in Cohesive Soil Under Uplift and Compressive Forces by Experimental Studies and Numerical Analyses 通过实验研究和数值分析探究粘性土中螺旋桩在上浮力和压缩力作用下的行为

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-15 DOI: 10.1007/s13369-024-09553-x

Talha Sarici, Mustafa Ozcan

{"title":"Investigation of Screw Pile Behavior in Cohesive Soil Under Uplift and Compressive Forces by Experimental Studies and Numerical Analyses","authors":"Talha Sarici, Mustafa Ozcan","doi":"10.1007/s13369-024-09553-x","DOIUrl":"https://doi.org/10.1007/s13369-024-09553-x","url":null,"abstract":"Within the scope of this study, experimental studies and numerical analyses were carried out to investigate the effect of the use of screw piles and traditional piles without screws on the bearing capacity of cohesive soils under the effect of uplift and compressive forces. In the experimental studies, the effect of changing the number of helixes and the effect of different overburden loads caused by this change were investigated. In numerical analyses, the finite element method was used via Plaxis 3D and a new design different from the commonly used modeling was created using the segmented helix model. After validating the results of numerical analysis and experimental study, the effect of different embedment depths and helix diameters on the behavior of cohesive soil reinforced with screw piles under loads was investigated. According to the results obtained from the study, the bearing capacity of cohesive soil increased as the screw pile helix number increased. Increase in bearing capacity was also observed with increasing embedment depth and helix diameter. In addition, the segmented helix model used in the numerical analyses represented the screw pile behavior more realistically.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"34 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142269429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Magnet Design of an Advanced High-Field Superconducting Cyclotron for Medical Isotope Production 用于医用同位素生产的先进高场超导回旋加速器的磁体设计

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-15 DOI: 10.1007/s13369-024-09566-6

A. O. Alrashdi, M. A. Alkadi, S. M. Alshammari, K. S. Alharbi, K. N. Alharbi, A. S. Aldawood, S. A. Altuijri, K. A. Alkhulayfi

{"title":"A Magnet Design of an Advanced High-Field Superconducting Cyclotron for Medical Isotope Production","authors":"A. O. Alrashdi, M. A. Alkadi, S. M. Alshammari, K. S. Alharbi, K. N. Alharbi, A. S. Aldawood, S. A. Altuijri, K. A. Alkhulayfi","doi":"10.1007/s13369-024-09566-6","DOIUrl":"https://doi.org/10.1007/s13369-024-09566-6","url":null,"abstract":"Radioisotopes are one of the essential cornerstones of modern medicine. They serve both diagnostic and therapeutic purposes. These radioisotopes are mainly produced using charged particle accelerators such as cyclotrons. In this paper, we present a description of a compact high-field superconducting magnet as it is considered the most important part of the cyclotron accelerator because it is approximately 60% of the overall TAAC30 cyclotron design. This 30 MeV cyclotron uses the magnet to boost a magnetic field two times higher than the recently developed conventional H-cyclotrons. This magnet will also be a modern, state-of-the-art design not only because of the higher magnetic field, but also smaller size, lower maintenance, lighter weight, and lower power consumption in comparison with any other magnet available. This design also allows both low construction requirements with operation costs for the production of PET isotopes, which require an internal water target. The acceleration frequency is 200 MHz, and an operating power level of 2–3 kW is foreseen for the acceleration, powered by a compact water-cooled solid-state RF amplifier. The cyclotron, as well as the beam, operates as a fully continuous wave with a 100% duty cycle. This design aims to provide a sustainable supply of the critical imaging isotopes F-18 and N13, eliminating the need of supplying from other production facilities for small centers. Additionally, this paper presents simulation results of this magnet using multiple analysis models, which are sufficient and present high capability in accelerator field.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"44 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142256181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prospects of Nuclear Power in a Sustainable Energy Transition 核能在可持续能源转型中的前景

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-15 DOI: 10.1007/s13369-024-09557-7

Muhammad Asif, Barry Solomon, Charles Adulugba

{"title":"Prospects of Nuclear Power in a Sustainable Energy Transition","authors":"Muhammad Asif, Barry Solomon, Charles Adulugba","doi":"10.1007/s13369-024-09557-7","DOIUrl":"https://doi.org/10.1007/s13369-024-09557-7","url":null,"abstract":"The availability of refined and efficient energy resources has played a decisive role in the advancement of societies, especially since the Industrial Revolution of the mid eighteenth to nineteenth centuries. In the twentieth century, the international energy scenario is experiencing a profound transition in terms of energy resources and their utilization. The energy transition is in response to the challenges the global energy landscape faces such as rapidly growing demand, depleting fossil fuel reserves, surging energy prices, risks associated with the security of supplies, and above all climate change. Nuclear power is an important form of energy making a significant contribution to the electricity mix around the world, especially in developed countries. One of the major advantages of nuclear power is its minimal greenhouse gas emissions as compared to fossil fuels. The paper examines the prospects of nuclear power in the energy transition considering both the trend of phase-out that the technology has experienced primarily in several European countries since the 1980s, as well as the growing interest it has received more recently as a low carbon energy solution toward addressing climate change. It also examines the significance of nuclear power toward energy transition with the help of multi-criteria decision analysis (MCDA) based on expert opinion from developed as well as developing countries.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"13 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142256157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison Between Analytical and Numerical Solutions for Water Transport in the Membrane on a PEMFC Model PEMFC 模型膜中水传输的分析和数值解决方案比较

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-15 DOI: 10.1007/s13369-024-09499-0

Leonardo Fortuna Carneiro, Esly Ferreira da Costa Junior, Samuel Tadeu de Paula Andrade, Tulio Matencio, Rudolf Huebner, Rosana Zacarias Domingues

{"title":"Comparison Between Analytical and Numerical Solutions for Water Transport in the Membrane on a PEMFC Model","authors":"Leonardo Fortuna Carneiro, Esly Ferreira da Costa Junior, Samuel Tadeu de Paula Andrade, Tulio Matencio, Rudolf Huebner, Rosana Zacarias Domingues","doi":"10.1007/s13369-024-09499-0","DOIUrl":"https://doi.org/10.1007/s13369-024-09499-0","url":null,"abstract":"Based on the necessity of better understanding the trade-off between the accuracy and computational efficiency of fuel cell models, this work aims to evaluate the impact of a simplifying assumption that permits the analytical description of water transport in the electrolyte. This simplification is the usage of a mean value for the water diffusivity, which is a function of the membrane’s water content. For this test, analytical expressions for the transport are developed for two different electro-osmotic drag models, Springer’s linear description and a piecewise-linear proposal. Those expressions are implemented on a PEMFC model along with the non-simplified description, which is solved numerically. Both submodels have good accuracies on the polarization curve while the water concentration does not reach the region of the peak in diffusivity ((lambda cong 4)), indicating that the underestimation of the back-diffusion caused by the mean can hinder the accuracy. As for computational time, improvements of 49.85 and 23.69% are, respectively, obtained for Springer’s and the piecewise-linear electro-osmotic drag models for a larger interval between the solved current densities. However, the analytical expressions cause a performance loss of 6.80% when a smaller interval is used for the piecewise description. Therefore, the assumption of a mean diffusivity can be beneficial for models if the cell operates under well-humidified conditions and with fewer points in the domain, but it loses some of its benefits with smaller intervals in current density.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"187 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142256186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Studies on the Oil–Water Mixture Separation by Corrugated Plates with Hooks and Holes in Various Shapes and Configurations 各种形状和配置的带钩和孔波纹板分离油水混合物的数值研究

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-14 DOI: 10.1007/s13369-024-09560-y

Mehmet Oruc, Muhammed Salih, Sedat Yayla, Seyfettin Bayraktar

{"title":"Numerical Studies on the Oil–Water Mixture Separation by Corrugated Plates with Hooks and Holes in Various Shapes and Configurations","authors":"Mehmet Oruc, Muhammed Salih, Sedat Yayla, Seyfettin Bayraktar","doi":"10.1007/s13369-024-09560-y","DOIUrl":"https://doi.org/10.1007/s13369-024-09560-y","url":null,"abstract":"The present paper reports the studies on the separation efficiency of a water–oil mixture in the second process in which the water consists of 5–10% crude oil in general. The mixture in this stage was exposed to an additional separation. For this purpose, corrugated plates with L-shaped hooks and holes on the top intersection of the plates were used. Before handling some design factors such as the hole pattern at the intersection of the inclined plates, the inclination angle of the corrugated plates, and the hooks attached to the plates, an experimental rig was designed to validate the computational fluid dynamics (CFD) results. Upon achieving a successful comparison, the numerical studies were extended to reveal the effects of hole shapes and arrangement pattern and the angle of the plates. It was found that attaching L-shaped hooks to the plates improves separation effectiveness by 2% as compared to hookless plates. The parametric CFD studies reveal that the hole shapes do not affect considerably the separation efficiency while raising the plates increases the efficiency slightly and pressure drop dramatically.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"8 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142256188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structured Defense Model Against DNP3-Based Critical Infrastructure Attacks 针对基于 DNP3 的关键基础设施攻击的结构化防御模型

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-14 DOI: 10.1007/s13369-024-09577-3

Erdal Ozdogan

{"title":"Structured Defense Model Against DNP3-Based Critical Infrastructure Attacks","authors":"Erdal Ozdogan","doi":"10.1007/s13369-024-09577-3","DOIUrl":"https://doi.org/10.1007/s13369-024-09577-3","url":null,"abstract":"Critical infrastructures encompass the essential systems required to operate various sectors, including energy, water, communication, finance, health, and transportation. The sophistication and organization of attacks on these infrastructures are escalating. A frequently targeted protocol within these critical infrastructures is the Distributed Network Protocol 3 (DNP3). This study developed a Machine Learning-supported Intrusion Detection System to identify attacks on DNP3 networks. The research utilized a current and balanced dataset containing DNP3 traffic from critical infrastructures. A model incorporating two defense lines, reflecting the structure of the attacks, was proposed. The initial detection of reconnaissance attacks is designed to prevent subsequent attacks. Reconnaissance attacks are identified in the first defense line using Extreme Gradient Boosting. In contrast, attacks on critical infrastructures are classified as the second defense line, with the support of artificial neural networks. In the study’s first phase, the model achieved high accuracy in detecting reconnaissance attacks. In the second phase, the model achieved approximately 99% accuracy in detecting attacks and around 98% average success in classification. The model achieved 96% accuracy in evaluating unknown attack detection capability.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"100 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142256189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tribological Investigation and Statistical Optimization by Response Surface Methodology of Vegetable Oil-Based Ionanolubricants 植物油基离子醇润滑剂的摩擦学研究和响应面方法的统计优化

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-14 DOI: 10.1007/s13369-024-09538-w

Gitesh Kumar, H. C. Garg

{"title":"Tribological Investigation and Statistical Optimization by Response Surface Methodology of Vegetable Oil-Based Ionanolubricants","authors":"Gitesh Kumar, H. C. Garg","doi":"10.1007/s13369-024-09538-w","DOIUrl":"https://doi.org/10.1007/s13369-024-09538-w","url":null,"abstract":"The demand for environmentally acceptable lubricants has surged due to awareness of the detrimental effects of petroleum-based lubricants. Vegetable oil-based nanolubricants have garnered significant attention over the past two decades. The present research work focuses on detailed experimental investigation of tribological and rheological characteristics of rice bran oil and sesame oil with trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl) phosphinate ([P66614][BTMPP]) ionic liquid and titanium oxide (TiO2) nanoparticles as additives. Experiments were conducted using ball on disc tribotester based on central composite design generated by response surface methodology. The study evaluated under three input parameters are load, speed, ionic liquid concentration and two output responses are average coefficient of friction and specific wear rate. Optimal tribological performance has been observed in rice bran oil and sesame oil formulations containing 0.608 vol% and 0.99 vol% of ionic liquid, respectively. Rheological analysis indicated Newtonian behavior across all lubricant samples.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"28 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142256190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Process Simulation for Converting CO2 Emissions from the Cement Industry to Dimethyl Ether 将水泥工业排放的二氧化碳转化为二甲醚的工艺模拟

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-13 DOI: 10.1007/s13369-024-09530-4

Mohamed Essam, Fatma Gad, Nour Abouseada, Moustafa Aly Soliman, Dina Aboelela

{"title":"Process Simulation for Converting CO2 Emissions from the Cement Industry to Dimethyl Ether","authors":"Mohamed Essam, Fatma Gad, Nour Abouseada, Moustafa Aly Soliman, Dina Aboelela","doi":"10.1007/s13369-024-09530-4","DOIUrl":"https://doi.org/10.1007/s13369-024-09530-4","url":null,"abstract":"Climate change is the leading severe problem in the twenty-first century, which is associated with greenhouse gas emissions, carbon dioxide that is the foremost cause of global warming and super greenhouse effect. In this concern, to avoid hazardous problems, the steady stream of CO2 effluents existing in the atmosphere must be transformed to beneficial products for being used as an abundant chemical feedstock. Implementing a new green strategy, which is known for the catalytic hydrogenation of CO2 into alternative fuels and valuable chemicals, will be a long-lasting solution to alleviate CO2 emissions. In this paper, a process simulation showing the synthesis of dimethyl ether (DME) from CO2 hydrogenation (CO2 produced from EL-Sewedy cement industry) is performed using Aspen HYSYS V10 to attain a complete distinctive design for all equipment for producing a capacity of 475,000 tons per year, while energy integration is performed using Energy Analyzer Simulation software. In the main model, catalytic dehydration is done in a single-pass reactor, and then separation in multi-column product separations. Other configurations were tested by developing three simulation models with different reactors, a double pipe reactor and membrane reactor were with the aim of modification for higher energy efficiency and lower operating and capital costs. Moreover, an economic and environmental study was obtained for the basic & the integrated case, which showed that the total annual/capital costs based on the “base case” are estimated to be 90 million USD without heat integration while the optimum and integrated costs are found to be 100 Million USD. Finally, process optimization and integration were obtained to reduce the utilized energy of the hot & cold utilities by 90% and 60%, respectively.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"13 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conversion of Used Cooking Oil into Biodiesel by Utilizing Zirconia Catalyst as Acid Catalyst (SO4/ZrO2) and Base Catalyst (ZrO2/CaO) 利用氧化锆催化剂作为酸催化剂（SO4/ZrO2）和碱催化剂（ZrO2/CaO）将废食用油转化为生物柴油

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-13 DOI: 10.1007/s13369-024-09520-6

Remi Ayu Pratika, Zahrotun Nafisah, Yuliana Yuliana, Syarpin Syarpin, Rendy Muhamad Iqbal, Ysrafil Ysrafil, Karna Wijaya

{"title":"Conversion of Used Cooking Oil into Biodiesel by Utilizing Zirconia Catalyst as Acid Catalyst (SO4/ZrO2) and Base Catalyst (ZrO2/CaO)","authors":"Remi Ayu Pratika, Zahrotun Nafisah, Yuliana Yuliana, Syarpin Syarpin, Rendy Muhamad Iqbal, Ysrafil Ysrafil, Karna Wijaya","doi":"10.1007/s13369-024-09520-6","DOIUrl":"https://doi.org/10.1007/s13369-024-09520-6","url":null,"abstract":"Zirconium (ZrO2) was synthesized from Zirconium Oxychloride (ZrOCl2.8H2O) using hydrothermal method. Modification of ZrO2 as an acid catalyst (SO4/ZrO2) was made by adding 0.5; 1; and 1.5 M sulfuric acid solutions to ZrO2. The sulfation process was confirmed by formation of SO42− ion spectrum in 1238–1001 cm−1 region and resulted presence of elemental sulfur with mass percentage of 1.36%. The catalyst acidity test showed 1.5 M SO4/ZrO2 catalyst as catalyst with the highest acidity value. The application of 1.5 M SO4/ZrO2 catalyst in the esterification reaction of used cooking oil resulted decreasing of free fatty acid content up to 55.33%. In the another, preparation of basic catalyst, ZrO2/CaO was carried out by the addition of Calcium oxide (CaO) to ZrO2 in three concentrations group of 25, 30, and 35%. The results, we found the catalyst with optimal basicity value in group 30% ZrO2/CaO. In addition, the 30% ZrO2/CaO catalyst has CaZrO3 and lime-CaO crystal phases; exfoliated surface morphology and result Zirconium and Calcium of 7.41 and 42.83%, respectively. Furthermore, biodiesel production from used cooking oil using 30% ZrO2/CaO catalyst produces biodiesel with good conversion percentage of 94.00%.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"22 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-Healing and Mechanical Properties of Aged Hot Mix Asphalt Containing Waste Oil Capsules 含废油胶囊的熟化热拌沥青的自愈合和力学性能

IF 2.9 4区综合性期刊

Arabian Journal for Science and Engineering Pub Date : 2024-09-13 DOI: 10.1007/s13369-024-09574-6

Özge Erdoğan Yamaç, Mehmet Yilmaz, Erkut Yalçin, Ahmet Münir Özdemir, Alvaro Garcia-Hernandez, Baha Vural Kök

{"title":"Self-Healing and Mechanical Properties of Aged Hot Mix Asphalt Containing Waste Oil Capsules","authors":"Özge Erdoğan Yamaç, Mehmet Yilmaz, Erkut Yalçin, Ahmet Münir Özdemir, Alvaro Garcia-Hernandez, Baha Vural Kök","doi":"10.1007/s13369-024-09574-6","DOIUrl":"https://doi.org/10.1007/s13369-024-09574-6","url":null,"abstract":"Hot mix asphalts are known to have a self-healing property and microcracks in the pavement can close to some extent after they occur if they are not subjected to load and if sufficient time is allowed. However, this healing period is prolonged, and the healing rate is not very high. In this study, calcium alginate capsules containing waste vegetable oil and waste mineral oil as rejuvenating agents were produced, and used in asphalt mixtures at four different rates (0.25%, 0.50%, 0.75%, and 1.0%) by weight. The study aims to develop an environmentally friendly and economically viable repair method by using waste oils. Marshall stability and flow and tensile strength ratio tests were conducted on cylindrical specimens. Additionally, three-point bending test was performed on aged asphalt mixtures to determine the self-healing rates of cracks formed in the specimens. Fourier transform infrared spectroscopy was conducted on bitumen specimens taken before crack formation and after the healing period to determine the percentage of ruptured capsules in the mixture. The results showed that the addition of capsules containing waste mineral oil and vegetable oil reduced stability values and increased flow values. However, according to the results of the retained Marshall stability test, it was determined that the addition of capsules, especially at a 0.5% ratio, increased resistance to moisture damage. Regarding crack-healing results, it was found that temperature and curing time increased healing rates, and capsules containing waste mineral oil provided higher healing rates compared to those containing waste vegetable oil.","PeriodicalId":8109,"journal":{"name":"Arabian Journal for Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0