Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118202
Thomas Boillat, C. Tuffnell, H. Rivas, F. Aloul, C. Montana
Global industries are acknowledging that professions as we know them will not require the same skills as they did in the 20th Century. Therefore how can universities prepare students for challenges that have not been fully identified? This paper will present the Design4Health Bootcamp, an initiative that intends to close the so-called “21st century skills gap”. We present its course curriculum, quantitative and qualitative evaluation and conclude with a set of principles that support the implementation of such initiatives.
{"title":"Design4Health Bootcamp: A design thinking approach to improve the 21stcentury skills of health, engineering and design students","authors":"Thomas Boillat, C. Tuffnell, H. Rivas, F. Aloul, C. Montana","doi":"10.1109/ASET48392.2020.9118202","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118202","url":null,"abstract":"Global industries are acknowledging that professions as we know them will not require the same skills as they did in the 20th Century. Therefore how can universities prepare students for challenges that have not been fully identified? This paper will present the Design4Health Bootcamp, an initiative that intends to close the so-called “21st century skills gap”. We present its course curriculum, quantitative and qualitative evaluation and conclude with a set of principles that support the implementation of such initiatives.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"363 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122767255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118276
Neebal Al Azzawi, L. Amir, P. Tiwari, E. Mushtaha
In January 2019, Lebanon was hit by the storm Norma. The Inter-Agency Coordination of Lebanon from the UNHCR reported severe damages in several informal settlements in Eastern Lebanon. There, refugees were already striving to live with their families along with being a vulnerable community at risk from various hazards. Architectural engineering offers several sheltering solutions to respond to flood and aiming for resilience for communities at risk. This paper presents a design for a resilient shelter, using the Dalhamieh informal settlement in eastern Lebanon as a case study. For this purpose, using the data available from secondary sources, we firstly propose a preliminary risk assessment for the affected area in the Bekaa Valley. The resulting analysis combined with the integration of several guidelines from the UNHCR emergency handbook provided a basis for this research thereby presented. The shelter unit and its extension to the campsite here designed is resilient in such a way it is lightweight, flexible, movable, stretchable, deployable, and sustainable. Also, it protects residents from harsh environment.
{"title":"Sustainable and Resilient design for emergency shelters in flood risk communities: Case study: The informal settlements in the Bekaa Valley (Eastern Lebanon)","authors":"Neebal Al Azzawi, L. Amir, P. Tiwari, E. Mushtaha","doi":"10.1109/ASET48392.2020.9118276","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118276","url":null,"abstract":"In January 2019, Lebanon was hit by the storm Norma. The Inter-Agency Coordination of Lebanon from the UNHCR reported severe damages in several informal settlements in Eastern Lebanon. There, refugees were already striving to live with their families along with being a vulnerable community at risk from various hazards. Architectural engineering offers several sheltering solutions to respond to flood and aiming for resilience for communities at risk. This paper presents a design for a resilient shelter, using the Dalhamieh informal settlement in eastern Lebanon as a case study. For this purpose, using the data available from secondary sources, we firstly propose a preliminary risk assessment for the affected area in the Bekaa Valley. The resulting analysis combined with the integration of several guidelines from the UNHCR emergency handbook provided a basis for this research thereby presented. The shelter unit and its extension to the campsite here designed is resilient in such a way it is lightweight, flexible, movable, stretchable, deployable, and sustainable. Also, it protects residents from harsh environment.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129983224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118305
A. Melake, H. Jishi, Bahnay Melake
A three-dimensional Navier-Stokes equation based flow solver has been modified to accommodate multi-block computational domain and applied to investigate the flow features of a compressor cascade. Experimental investigation at different flow conditions conducted by Schulz [1] on the same cascade showed that the compressor was dominated by flow separation, hub and suction side flow stall and reverse flow around the trailing edge of the cascade. Extensive pressure distribution on all surfaces and qualitative analysis of the flow patterns using dye injection on all flow passage have been conducted by Schulz with the aim of providing a benchmark database for a comparison with computational codes. The purpose of this paper is thus to compare these results with that of computational results. The qualitative flow patterns obtained by dye injection have also been compared with that of computational limiting streamlines on the surface of the hub and suction surface corner. Finally, the flow patterns are analyzed using the critical point theory.
{"title":"Analysis of Hub Corner Flow of a Compressor Cascade Using Dye Injection and Limiting Streamlines","authors":"A. Melake, H. Jishi, Bahnay Melake","doi":"10.1109/ASET48392.2020.9118305","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118305","url":null,"abstract":"A three-dimensional Navier-Stokes equation based flow solver has been modified to accommodate multi-block computational domain and applied to investigate the flow features of a compressor cascade. Experimental investigation at different flow conditions conducted by Schulz [1] on the same cascade showed that the compressor was dominated by flow separation, hub and suction side flow stall and reverse flow around the trailing edge of the cascade. Extensive pressure distribution on all surfaces and qualitative analysis of the flow patterns using dye injection on all flow passage have been conducted by Schulz with the aim of providing a benchmark database for a comparison with computational codes. The purpose of this paper is thus to compare these results with that of computational results. The qualitative flow patterns obtained by dye injection have also been compared with that of computational limiting streamlines on the surface of the hub and suction surface corner. Finally, the flow patterns are analyzed using the critical point theory.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127663973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118242
Yousef Elbaz, Marwan Naeem, Muamer Abuzwidah, Samer M. Barakat
The occurrence of road traffic accidents is subjected to a variety of causes and one of them is drowsy driving. The presence of drowsy driving has been a critical contributor to road accidents worldwide. The purpose of this study is to analyze attitudes, behaviors, and opinions associated with fatigued or drowsy driving. The data were collected using a questionnaire-based survey in the United Arab Emirates and were descriptively analyzed. The results of the analysis showed that a wide number of drivers (71 percent) admitted that they drive while fatigued at least once a week. Out of all respondents, 27 percent admitted falling asleep behind the wheel before and 7 percent of them were involved in a crash related to nodding off. Moreover, the results also showed that most of the drivers prefer to either listen to the radio or talk to passengers to reduce drowsiness rather than stop and rest or nap. Overall, there is a need to raise awareness about the risk of drowsy driving since people tend to see other factors to be riskier. Also, this study highlights the necessity to counteract fatigued driving with treatments on-road and more education to the public. More research and crash data analysis are highly recommended to reach a clear conclusion and suggest certain treatments.
{"title":"Effect of Drowsiness on Driver Performance and Traffic Safety","authors":"Yousef Elbaz, Marwan Naeem, Muamer Abuzwidah, Samer M. Barakat","doi":"10.1109/ASET48392.2020.9118242","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118242","url":null,"abstract":"The occurrence of road traffic accidents is subjected to a variety of causes and one of them is drowsy driving. The presence of drowsy driving has been a critical contributor to road accidents worldwide. The purpose of this study is to analyze attitudes, behaviors, and opinions associated with fatigued or drowsy driving. The data were collected using a questionnaire-based survey in the United Arab Emirates and were descriptively analyzed. The results of the analysis showed that a wide number of drivers (71 percent) admitted that they drive while fatigued at least once a week. Out of all respondents, 27 percent admitted falling asleep behind the wheel before and 7 percent of them were involved in a crash related to nodding off. Moreover, the results also showed that most of the drivers prefer to either listen to the radio or talk to passengers to reduce drowsiness rather than stop and rest or nap. Overall, there is a need to raise awareness about the risk of drowsy driving since people tend to see other factors to be riskier. Also, this study highlights the necessity to counteract fatigued driving with treatments on-road and more education to the public. More research and crash data analysis are highly recommended to reach a clear conclusion and suggest certain treatments.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129222157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118188
S. M. Shaikh, P. Mane
The need of well-trained engineers is very huge in India. At present, the enterprises cannot fill all job openings even though the number of engineering institutes has increased exponentially in the last decade. The main hurdle in this is the holistic development and in particular the communication skills of the budding engineers in India. In this paper we have included case study of our institute and tried to explore the myriad ways in which these issues can be addressed. It also gives various methods and strategies for substantial improvement in students by adopting innovative teaching techniques. It also tries to throw some light on role of instructional/learning designers.
{"title":"Case Study of Outcomes of Innovative Teaching methods adopted in Engineering Education in India","authors":"S. M. Shaikh, P. Mane","doi":"10.1109/ASET48392.2020.9118188","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118188","url":null,"abstract":"The need of well-trained engineers is very huge in India. At present, the enterprises cannot fill all job openings even though the number of engineering institutes has increased exponentially in the last decade. The main hurdle in this is the holistic development and in particular the communication skills of the budding engineers in India. In this paper we have included case study of our institute and tried to explore the myriad ways in which these issues can be addressed. It also gives various methods and strategies for substantial improvement in students by adopting innovative teaching techniques. It also tries to throw some light on role of instructional/learning designers.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129068557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118314
I. Alsyouf
This paper suggests and introduces a new concept that is based on the quality circles concept and suggests introducing it to enhance the sustainability performance in higher education institutions. This concept is called the Sustainability Circles, which is adapted from the well-known Japanese quality circles concept. A sustainability circle indicates that a group of volunteer members with interests in a sustainability-related track, such as energy, water, transportation, etc., meets regularly to identify, analyze, and suggest initiatives. It has a significant advantage in engaging all university stakeholders. It aims to engage members of Institutions of Higher Education community (students, administrative/technical staff, and faculty members) in its endeavors to develop a culture of sustainability and incorporate sustainability in every aspect of campus life. The results of the implementation of the sustainability circles concept at the University of Sharjah are presented. Using the sustainability circle will help prepare the students, engage the faculty members and administrative staff to work together with partners from government and business, and international organizations and community leaders on solutions to local, regional, and global sustainability challenges. This will lead the Institutions of Higher Education to achieve excellent sustainability performance.
{"title":"Sustainability Circles the way to Sustainbility Excellence in Institutions of Higher Education","authors":"I. Alsyouf","doi":"10.1109/ASET48392.2020.9118314","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118314","url":null,"abstract":"This paper suggests and introduces a new concept that is based on the quality circles concept and suggests introducing it to enhance the sustainability performance in higher education institutions. This concept is called the Sustainability Circles, which is adapted from the well-known Japanese quality circles concept. A sustainability circle indicates that a group of volunteer members with interests in a sustainability-related track, such as energy, water, transportation, etc., meets regularly to identify, analyze, and suggest initiatives. It has a significant advantage in engaging all university stakeholders. It aims to engage members of Institutions of Higher Education community (students, administrative/technical staff, and faculty members) in its endeavors to develop a culture of sustainability and incorporate sustainability in every aspect of campus life. The results of the implementation of the sustainability circles concept at the University of Sharjah are presented. Using the sustainability circle will help prepare the students, engage the faculty members and administrative staff to work together with partners from government and business, and international organizations and community leaders on solutions to local, regional, and global sustainability challenges. This will lead the Institutions of Higher Education to achieve excellent sustainability performance.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"525 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117034082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118385
S. Alansari, A. Ziadat
The research was developed to improve the logistical functions for further implement and enhancement-towards a selected corporation that serves in the field of aviation, maintenance, and logistics. The research conducted covers various methodologies that involve qualitative and quantitative approach enlightened through different literature review, articles, books, interviews, and journals. A survey was distributed to the workers, managers, and others in the selected corporation. It identified the importance of implementing Enterprise Resource Planning Systems (ERP) within any organization and demonstrated the vitality of establishing Standardized Operational Procedures that has to be completed when logistical and mobilization of goods functions are fulfilled. These functions would include the handling, transporting, and storage of all sort of goods, components, items, and parts. Alternative solutions and recommendations were provided to assist and enhance the current operations and activities that are completed within the selected service provider corporation in addition to any other similar corporations that may benefit from the research findings.
{"title":"Modelling a Sustainable Approach toward Logistical Functions at PAL Aerospace Services Aircraft Maintenance in the UAE","authors":"S. Alansari, A. Ziadat","doi":"10.1109/ASET48392.2020.9118385","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118385","url":null,"abstract":"The research was developed to improve the logistical functions for further implement and enhancement-towards a selected corporation that serves in the field of aviation, maintenance, and logistics. The research conducted covers various methodologies that involve qualitative and quantitative approach enlightened through different literature review, articles, books, interviews, and journals. A survey was distributed to the workers, managers, and others in the selected corporation. It identified the importance of implementing Enterprise Resource Planning Systems (ERP) within any organization and demonstrated the vitality of establishing Standardized Operational Procedures that has to be completed when logistical and mobilization of goods functions are fulfilled. These functions would include the handling, transporting, and storage of all sort of goods, components, items, and parts. Alternative solutions and recommendations were provided to assist and enhance the current operations and activities that are completed within the selected service provider corporation in addition to any other similar corporations that may benefit from the research findings.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117150139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118335
Lekshmi Vijayalekshmi Amma, Farwa Ashraf
Many countries in the world, particularly the Middle East countries, are suffering from water scarcity. The use of reverse osmosis desalination for the production of potable water has drastically increased over the past few decades. UAE is one of the world leaders in desalination. Almost 61% of the desalinated water capacity in UAE is from reverse osmosis. Like most chemical processes, waste is an imminent by-product of desalination causing severe environmental and social problems. Majority of the Reverse osmosis plants in UAE dispose brine directly into the sea, which is not at all sustainable. An environmentally friendly and cost-effective alternative is required to manage the reject produced in the UAE. This paper focuses in analysing the sustainable options to manage the reject efficiently in UAE. Evaluations of different disposal methods were carried out, comparing all characteristics of each method of disposal and it was found out that, evaporation pond can be a possible alternative for brine disposal in UAE climatic conditions. The paper focuses on the efficiency and limitations of evaporation ponds in UAE.
{"title":"Brine Management in Reverse Osmosis Desalination: A UAE Perspective","authors":"Lekshmi Vijayalekshmi Amma, Farwa Ashraf","doi":"10.1109/ASET48392.2020.9118335","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118335","url":null,"abstract":"Many countries in the world, particularly the Middle East countries, are suffering from water scarcity. The use of reverse osmosis desalination for the production of potable water has drastically increased over the past few decades. UAE is one of the world leaders in desalination. Almost 61% of the desalinated water capacity in UAE is from reverse osmosis. Like most chemical processes, waste is an imminent by-product of desalination causing severe environmental and social problems. Majority of the Reverse osmosis plants in UAE dispose brine directly into the sea, which is not at all sustainable. An environmentally friendly and cost-effective alternative is required to manage the reject produced in the UAE. This paper focuses in analysing the sustainable options to manage the reject efficiently in UAE. Evaluations of different disposal methods were carried out, comparing all characteristics of each method of disposal and it was found out that, evaporation pond can be a possible alternative for brine disposal in UAE climatic conditions. The paper focuses on the efficiency and limitations of evaporation ponds in UAE.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115399950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118361
A. A. Azeez, M. Alkhedher, M. Gadala
In rotating machinery, rolling element bearings are one of the most critical components and a large majority of system failures arise from faulty bearings. Hence, there is an increasing demand to find an effective and reliable condition monitoring technique. In this paper, a procedure for detecting various types of bearing faults using thermal imaging is presented and assessed. Five different fault cases are tested: no fault (NF), line fault (LF), small circle fault (SCF), double line fault (DLF), and large circle fault (LCF). Experiments were conducted on the BENTLY NEVADA RK4 Rotor Kit. The tests were performed at 1500 RPM and 2000 RPM. A video is recorded for 10 minutes using FLIR thermal imaging camera and images are extracted from the video and processed to detect the average temperature at the bearing hotspot using MATLAB. Analysis of the results show that Thermal Imaging can be used as an effective means to differentiate between different types of faults that occur in the outer race of the rolling element bearing.
{"title":"Thermal Imaging Fault Detection for Rolling Element Bearings","authors":"A. A. Azeez, M. Alkhedher, M. Gadala","doi":"10.1109/ASET48392.2020.9118361","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118361","url":null,"abstract":"In rotating machinery, rolling element bearings are one of the most critical components and a large majority of system failures arise from faulty bearings. Hence, there is an increasing demand to find an effective and reliable condition monitoring technique. In this paper, a procedure for detecting various types of bearing faults using thermal imaging is presented and assessed. Five different fault cases are tested: no fault (NF), line fault (LF), small circle fault (SCF), double line fault (DLF), and large circle fault (LCF). Experiments were conducted on the BENTLY NEVADA RK4 Rotor Kit. The tests were performed at 1500 RPM and 2000 RPM. A video is recorded for 10 minutes using FLIR thermal imaging camera and images are extracted from the video and processed to detect the average temperature at the bearing hotspot using MATLAB. Analysis of the results show that Thermal Imaging can be used as an effective means to differentiate between different types of faults that occur in the outer race of the rolling element bearing.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126645534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-01DOI: 10.1109/ASET48392.2020.9118294
Hemraj R. Kumavat, N. Chandak
Concrete subject to elevated temperatures are directly affected by inner microstructure blending components. As a consequence, owing to high temperatures, the non-destructive test (Rebound Index) helps to evaluates the behavior of concrete. The paper focuses on behavior of normal strength concrete specimens exposed to high temperatures ranging from 200°C to 800°C with distinct cooling regimes (air cooled condition, hot condition) on M20, M30 and M40 concrete grades. It is observed that the compressive strength is approximately 9% lower in air-cooled condition than in hot condition for concrete subjected to 200 to 400°C temperature. Reduction of compressive strength correlates with reduction of concrete graph cube strength by rebound hammer in temperature range from 600°C to 800°C. The results revealed that, due to greater crack propagation at temperature range between 600 and 800°C, the higher percentage loss in strength for M40 grade concrete results in reduced rebound index values.
{"title":"Experimental study on behavior of normal strength concrete influenced by elevated temperatures","authors":"Hemraj R. Kumavat, N. Chandak","doi":"10.1109/ASET48392.2020.9118294","DOIUrl":"https://doi.org/10.1109/ASET48392.2020.9118294","url":null,"abstract":"Concrete subject to elevated temperatures are directly affected by inner microstructure blending components. As a consequence, owing to high temperatures, the non-destructive test (Rebound Index) helps to evaluates the behavior of concrete. The paper focuses on behavior of normal strength concrete specimens exposed to high temperatures ranging from 200°C to 800°C with distinct cooling regimes (air cooled condition, hot condition) on M20, M30 and M40 concrete grades. It is observed that the compressive strength is approximately 9% lower in air-cooled condition than in hot condition for concrete subjected to 200 to 400°C temperature. Reduction of compressive strength correlates with reduction of concrete graph cube strength by rebound hammer in temperature range from 600°C to 800°C. The results revealed that, due to greater crack propagation at temperature range between 600 and 800°C, the higher percentage loss in strength for M40 grade concrete results in reduced rebound index values.","PeriodicalId":237887,"journal":{"name":"2020 Advances in Science and Engineering Technology International Conferences (ASET)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126654580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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