This book highlights advances in the fields of civil engineering and construction industry with a particular focus on Structural Engineering and Construction Management. This book consists of top quality and innovative research papers selected from the proceedings of the 12th ICSECM 2021 under the themes of Innovations in Building Materials, Construction Management, Tall buildings, Concrete Technology and High Performance concrete, Geotechnical Engineering, Water and Waste Water Treatment, CKDu problem in Sri Lanka, Structural Health Monitoring & Design of Resistive Structures, Disaster Risk Reduction and Resilience in the Built Environment, Fibre Reinforced Polymer, Life Cycle Assessment of Buildings and Fire Safety Engineering.

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Prof. Ranjith Dissanayake is a Senior Professor in Civil Engineering, University of Peradeniya, Sri Lanka, who is also currently serving the country as the Secretary for the State Ministry of Rural Roads and Other Infrastructures. He is the Chairman of the Green Building Council of Sri Lanka (GBCSL) and Vice President of the Institution of Engineers, Sri Lanka (IESL). In private sector, he is the Chairman for Lego International (Pvt) Ltd, ICB (Pvt) Ltd, Lanka AAC (Pvt) Ltd and GAP (Pvt) Ltd. Prof. Dissanayake was a Fulbright Scholar in USA, Endeavour Fellow in Australia, and JASSO Research Fellow in Japan while being awarded the Young Scientist Award in 2007 by the NSTC of Sri Lanka. Prof. Priyan Mendis is a Senior Professor in Civil Engineering, University of Melbourne, Australia, who also serves as the Director of the ARC Centre for Advanced Manufacturing of Prefabricated Modular Housing (ARC CAMP.H) and the Leader of the Advanced Protective Technology of Engineering Structures Group, Australia. He is a leading expert in Innovative construction methods such as prefabricated structures, tall buildings, durability of concrete structures, and advanced sustainable construction materials. Prof. Mendis is the Honorary Chairman of Civil and Structural Engineering Consultants (Pvt) Ltd. and the Founding Chairman of Green Building Council of Sri Lanka (GBCSL) while being a Member of many global civil engineering bodies. Prof. Kolita Weerasekera is a Senior Professor and the Chair of Department of Civil Engineering, Open University of Sri Lanka, who is also a Chartered Engineer, International Professional Engineer, a Fellow of the Institution of Engineers Sri Lanka, a Member of Institution of Engineers Australia, American Society of Civil Engineers, and Institution of Highways and Transport, United Kingdom. As a transport engineering expert, he has authored two text books on highway and traffic engineering; "TowardsBetter Roads" and "An Introduction to Traffic Engineering". Prof. Sudhira De Silva is a Professor in Civil and Environmental Engineering, University of Ruhuna Sri Lanka, while being a Member of Institution of Engineers Sri Lanka (IESL), Society of Structural Engineers Sri Lanka, and Japan Concrete Institute. He has been Conference Co-chairs, Scientific Committee Chairs, and a Member of review panels in many national and international conferences. His research interests are in the areas of high strength and high-performance concrete, bridge management systems for RC and PC bridges, structural assessment, durability of reinforced concrete and pre-stressed concrete structures, and sustainable building materials. Eng. Shiromal Fernando is the Managing Director as well as the Principal Structural Engineer of Civil and Structural Engineering Consultants (Pvt) Ltd., Sri Lanka, which is one of the leading consultancy companies in Sri Lanka. He is a well-experienced Charted Engineer in Sri Lanka while also being the Chairman of Council on Tall Buildings and Urban Habitat, Sri Lanka, Vice President of Green Building Council of Sri Lanka (GBCSL), and Member of Institution of Engineers Sri Lanka (IESL), Sri Lankan Standard Institute (SLS), and Society of Structural Engineers, Sri Lanka. Eng. Fernando is a Leading Expert in innovative construction methods such as tall buildings, bridge construction, and advanced sustainable construction materials. Dr. Chaminda Konthesingha is a Senior Lecturer in Department of Civil Engineering, University of Sri Jayawardanepura, Sri Lanka, who is also currently serving as the Dean of Faculty of Engineering in the same university. His research interests are based on structural engineering and modular construction where he has managed to publish many journal and conference papers in these areas. He obtained his Bachelor and Master degrees in Civil Engineering from University of Moratuwa and Ph.D. from Newcastle University, UK. He is also a Member of Institution of Engineers Sri Lanka (IESL) and Society of Structural Engineers Sri Lanka.