Evaluation Of Various Treatment Methods For Enhancing The Properties Of Recycled Concrete Aggregate For Hot Mix Asphalt
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Evaluation Of Various Treatment Methods For Enhancing The Properties Of Recycled Concrete Aggregate For Hot Mix Asphalt
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Author : Hanaa Al-Bayati
language : en
Publisher:
Release Date : 2019
Evaluation Of Various Treatment Methods For Enhancing The Properties Of Recycled Concrete Aggregate For Hot Mix Asphalt written by Hanaa Al-Bayati and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
The application of treated CRCA with heat treatment and short mechanical treatment leads to an increase in the rutting resistance, a decrease in the total rut depth, a slight increase in the stiffness modulus, and an increase in the rutting factor of asphalt mixtures depending on the type of CRCA. The application of treated CRCA with the pre-soaking method and short mechanical treatment results in an increase in the stiffness and rutting factor of mixtures, depending on the type of CRCA. The findings demonstrated that the mixtures that included untreated CRCA have much higher ITS values than the control mix, registering a significant increase of 68%, 70%, 85.6% and 86.7%, for the mixtures that included 30% untreated CRCA#1 and CRCA#2 in both unconditioned and conditioned samples, respectively. This is followed by the ITS values of the mixtures that included 60% untreated CRCA#1 and CRCA#2 for both unconditioned and conditioned samples with an increase of 41.4%, 49.0%, 71.5%, and 56.8%, respectively. Additionally, a reasonable improvement in the ITS values in both conditioned and unconditioned samples were recorded for the mixtures that included 30% treated CRCA with different treatment techniques compared to the mixture that included 30% untreated CRCA. Furthermore, all tensile strength ratio (TSR) values for mixtures that included untreated CRCA with different types and percentages are higher than the minimum required value of MTO specifications. This indicates a successful application for CRCA in these mixtures. The use of the combination technique of pre-soaking method with weak acid followed by a short mechanical treatment method was a highly successful method for enhancing moisture resistance of asphalt mixtures as compared to other combination methods. From TSRST test, the findings indicated that the fracture temperature is reduced due to the CRCA addition compared to the control mix. However, there is no significant influence for the RCA type on the thermal cracks at low temperatures. Additionally, the fracture stress of the mixtures that included different untreated CRCA types with various proportions is generally higher than the fracture stress of the control mix Furthermore, the application of the combination of various treatments leads to a significant reduction in the fracture temperature, indicating a successful application of treated CRCA in HMA mixtures in cold regions. However, the combination of heat at 300 °C and short mechanical treatment has a considerable impact on the fracture temperature of asphalt mixtures as compared to other combination techniques. The results of ANOVA statistical analysis showed that the type of CRCA had a significant effect on the stiffness and rutting, ITS, and the fracture temperature of asphalt mixtures. Additionally, the type of treatment method had a considerable effect on the stiffness, rutting, and fracture temperature of HMA mixtures. In contrast, both the type of treatment method and the type of CRCA have an insignificant effect on the fracture stress of asphalt mixtures. The results of cost analysis revealed that both heat and pre-soaking treatment is quite reasonable, referring to many economic benefits and indicating that these treatment methods could be applicable. In conclusion, the results of this study indicate that the application of different CRCA types in various forms: treated and untreated is very successful and can contribute greatly towards more RCA applications in the asphalt pavements.
Proceedings Of The 9th International Conference On Maintenance And Rehabilitation Of Pavements Mairepav9
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Author : Christiane Raab
language : en
Publisher: Springer Nature
Release Date : 2020-06-19
Proceedings Of The 9th International Conference On Maintenance And Rehabilitation Of Pavements Mairepav9 written by Christiane Raab and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-06-19 with Technology & Engineering categories.
This book gathers the proceedings of an international conference held at Empa (Swiss Federal Laboratories for materials Science and Technology) in Dübendorf, Switzerland, in July 2020. The conference series was established by the International Society of Maintenance and Rehabilitation of Transport Infrastructure (iSMARTi) for promoting and discussing state-of-the-art design, maintenance, rehabilitation and management of pavements. The inaugural conference was held at Mackenzie Presbyterian University in Sao Paulo, Brazil, in 2000. The series has steadily grown over the past 20 years, with installments hosted in various countries all over the world. The respective contributions share the latest insights from research and practice in the maintenance and rehabilitation of pavements, and discuss advanced materials, technologies and solutions for achieving an even more sustainable and environmentally friendly infrastructure.
International Advanced Researches Engineering Congress 2017 Proceeding Book
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Author : Recep HALICIOGLU
language : en
Publisher: Dr. R. HALICIOGLU
Release Date : 2017-12-29
International Advanced Researches Engineering Congress 2017 Proceeding Book written by Recep HALICIOGLU and has been published by Dr. R. HALICIOGLU this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-12-29 with Technology & Engineering categories.
INTERNATIONAL WORKSHOPS (at IAREC'17) (This book inclueds English (main) and Turkish languages) International Workshop on Mechanical Engineering International Workshop on Mechatronics Engineering International Workshop on Energy Systems Engineering International Workshop on Automotive Engineering and Aerospace Engineering International Workshop on Material Engineering International Workshop on Manufacturing Engineering International Workshop on Physics Engineering International Workshop on Electrical and Electronics Engineering International Workshop on Computer Engineering and Software Engineering International Workshop on Chemical Engineering International Workshop on Textile Engineering International Workshop on Architecture International Workshop on Civil Engineering International Workshop on Geomatics Engineering International Workshop on Industrial Engineering International Workshop on Food Engineering International Workshop on Aquaculture Engineering International Workshop on Agriculture Engineering International Workshop on Mathematics Engineering International Workshop on Bioengineering Engineering International Workshop on Biomedical Engineering International Workshop on Genetic Engineering International Workshop on Environmental Engineering International Workshop on Other Engineering Science
Building Materials For Sustainable And Ecological Environment
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Author : Varenyam Achal
language : en
Publisher: Springer Nature
Release Date : 2021-05-28
Building Materials For Sustainable And Ecological Environment written by Varenyam Achal and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-28 with Science categories.
This book uses theories, hypotheses, policies, practical insights and case studies to introduce and elucidate green building materials for sustainable construction. Cement is the most widely used building material in construction; however, it is not sustainable, being responsible for 7% of global carbon dioxide emissions and consuming huge quantities of energy. In order to limit the ecological damage, sustainable building materials are needed. Ecosystems are a source of important lessons and models for transitioning the built environment onto a sustainable path that opens options for sustainable building material in construction. The book provides a guide for readers seeking knowledge on sustainable building materials with the potential to lower environmental impact by reducing CO2 emission throughout the building’s lifecycle. The book is motivated by recent rapid advances in sustainable building materials production, including green building materials made of industrial by-products and recycled wastes, earth materials, plant-based materials, microbial-based materials or supplementary cementitious materials, to reduce the environmental impacts of traditional building materials. Discussing the development and applications of various sustainable building materials, including related case studies, and addressing the environmental issue with a holistic and systematic approach that creates an ecology of construction for sustainability in infrastructures, it offers promising solutions to achieve renewable and sustainable building materials for the future.
Principles Of Cement And Concrete Composites
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Author : Natt Makul
language : en
Publisher: Springer Nature
Release Date : 2021-04-01
Principles Of Cement And Concrete Composites written by Natt Makul and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-01 with Technology & Engineering categories.
This book presents an introduction, a discussion of the concept of the design and the concrete’s development, and the properties and testing of the concrete in fresh and hardened stages. After an introduction to the principles of cement and concrete composites, the reader will find information on the principles of quantum-scaled cement, low-carbon cement, fiber-reinforced concrete, reactive powder concrete, and tailor-made recycled aggregate concrete.
Recycled Aggregate In Concrete
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Author : Jorge de Brito
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-11-28
Recycled Aggregate In Concrete written by Jorge de Brito and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-11-28 with Technology & Engineering categories.
Concrete is the most used man-made material in the world since its invention. The widespread use of this material has led to continuous developments such as ultra-high strength concrete and self-compacting concrete. Recycled Aggregate in Concrete: Use of Industrial, Construction and Demolition Waste focuses on the recent development which the use of various types of recycled waste materials as aggregate in the production of various types of concrete. By drawing together information and data from various fields and sources, Recycled Aggregate in Concrete: Use of Industrial, Construction and Demolition Waste provides full coverage of this subject. Divided into two parts, a compilation of varied literature data related to the use of various types of industrial waste as aggregates in concrete is followed by a discussion of the use of construction and demolition waste as aggregate in concrete. The properties of the aggregates and their effect on various concrete properties are presented, and the quantitative procedure to estimate the properties of concrete containing construction and demolition waste as aggregates is explained. Current codes and practices developed in various countries to use construction and demolition waste as aggregates in concrete and issues related to the sustainability of cement and concrete production are also discussed. The comprehensive information presented in Recycled Aggregate in Concrete: Use of Industrial, Construction and Demolition Waste will be helpful to graduate students, researchers and concrete technologists. The collected data will also be an essential reference for practicing engineers who face problems concerning the use of these materials in concrete production.
Evaluation Of Properties Of Recycled Asphalt Concrete Hot Mix
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Author : Elton R. Brown
language : en
Publisher:
Release Date : 1983
Evaluation Of Properties Of Recycled Asphalt Concrete Hot Mix written by Elton R. Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Asphalt concrete categories.
Recycling of aged asphalt concrete pavements has been demonstrated to be cost-effective and to reduce the demand for natural resources such as aggregate and asphalt. Because of the advantages derived when using recycled materials, the capability to predict long-term performance is needed so that optimum benefits can be obtained. This study was undertaken to evaluate the laboratory performance to recycled asphalt concrete mixtures and to compare these results to those measured for conventional asphalt concrete mixtures. Results of this study indicated a satisfactory comparison between laboratory performance of recycled mixtures and conventional mixtures. Fatigue analysis indicated that conventional mixtures would provide the greatest fatigue resistance in thick asphalt concrete layers at lower temperatures, while the recycled mixtures would provide the greatest fatigue resistance in thin asphalt layers at higher temperatures. Water susceptability was shown to be related more to aggregate type than to mixture type. The data show that recycled mixtures prepared with the recycling agent produced mixtures with the lowest durability and poorest low temperature performance when compared with the recycled mixtures prepared with AC-5 or compared with the conventional mixtures.
Evaluation Of Properties Of Recycled Asphalt Concrete Hot Mix
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Author : Elton R. Brown
language : en
Publisher:
Release Date : 1984
Evaluation Of Properties Of Recycled Asphalt Concrete Hot Mix written by Elton R. Brown and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Concrete categories.
Proceedings Of The Canadian Society Of Civil Engineering Annual Conference 2021
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Author : Scott Walbridge
language : en
Publisher: Springer Nature
Release Date : 2022-05-23
Proceedings Of The Canadian Society Of Civil Engineering Annual Conference 2021 written by Scott Walbridge and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-23 with Technology & Engineering categories.
This book comprises the proceedings of the Annual Conference of the Canadian Society of Civil Engineering 2021. The contents of this volume focus on specialty conferences in construction, environmental, hydrotechnical, materials, structures, transportation engineering, etc. This volume will prove a valuable resource for those in academia and industry.
Icscea 2021
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Author : J. N. Reddy
language : en
Publisher: Springer Nature
Release Date : 2022-09-20
Icscea 2021 written by J. N. Reddy and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-20 with Architecture categories.
This book presents articles from the Second International Conference on Sustainable Civil Engineering and Architecture, held on 30 October 2021 in Ho Chi Minh City, Vietnam. The conference brings together international experts from both academia and industry to share their knowledge, expertise, to facilitate collaboration and improve cooperation in the field. The book highlights the latest advances in sustainable architecture and civil engineering, covering topics such as offshore structures, structural engineering, construction materials, and architecture.