http://103.99.128.19:8080/xmlui/handle/123456789/15 Proceedings published in Dept. of C.E. Sat, 14 Nov 2026 12:02:25 GMT 2026-11-14T12:02:25Z http://103.99.128.19:8080/xmlui/handle/123456789/603 PERFORMANCE OF PREFABRICATED FERROCEMENT SHEET TO RETROFIT RC TIED COLUMNS Rahman, Md. Anisur The durability and performance of reinforced concrete (RC) structures are often compromised due to aging, environmental exposure, poor construction quality, and extreme loading conditions such as earthquakes or cyclones. In developing countries like Bangladesh, where a significant portion of the built environment is vulnerable and maintenance resources are limited, a cost- effective and structurally efficient retrofitting technique is urgently required. In this regard, this research explores the feasibility and effectiveness of a retrofitting method using prefabricated ferrocement sheets (PFSs) to strengthen partially damaged tied RC columns. In this study, an experimental investigation was conducted to assess the structural performance of eighteen one-third-scale column specimens representing three concrete strength levels (20 MPa, 24 MPa, and 28 MPa), divided into control, damaged, and retrofitted groups. The retrofitting involved bonding prefabricated ferrocement sheets, comprising single or double-layer wire mesh, onto the damaged columns using epoxy adhesives and mechanical anchors. All specimens were tested under axial displacement-controlled loading, and key performance indicators such as ultimate load capacity, initial stiffness, energy absorption, ductility index, and failure patterns were determined and evaluated. The results obtained from the investigation indicate that the retrofitted columns outperformed both the control and damaged specimens across all measured parameters. Notably, columns retrofitted with double-layer ferrocement jacketing exhibited up to 164% of axial strength, an improvement of initial structural stiffness of 54% and energy absorption increased by 152% over partial damage specimens for column concrete strength with 28 MPa. Subsequently, the respective values for the PFSs retrofitted column with a single layer are: 123%, vi 40% and 105%. The ductility index also improved substantially for both retrofitting scenarios, while failure modes shifted from brittle longitudinal splitting to ductile diagonal crack propagation with a delayed collapse. These similar scenarios are equally true for column specimens with lower concrete strength. Apart from that, the methodological approach of this study demonstrates prefabricated ferrocement sheet wrapping as a structurally sound, less labour-intensive, time-efficient and economically scalable retrofitting technique for deteriorated RC columns, especially for a developing country like Bangladesh. A Master of Engineering (M.Engg) Thesis in Computer Science and Engineering(CSE) Department at Chittagong University of Engineering and Technology (CUET). Tue, 14 Oct 2025 00:00:00 GMT http://103.99.128.19:8080/xmlui/handle/123456789/603 2025-10-14T00:00:00Z http://103.99.128.19:8080/xmlui/handle/123456789/360 Proceedings of the 6 th International Conference on Advances in Civil Engineering Palit, Dr. Swapan Kumar; Hoque, Dr. Asiful; Mullick, Dr. Md. Reaz Akter; Rahman, Dr. Md. Aftabur; Hoque, Dr. Nusrat PREFACE It is our immense pleasure to publish the proceedings of the 6 th International Conference on Advances in Civil Engineering (ICACE 2022), organized by the Department of Civil Engineering, Chittagong University of Engineering & Technology (CUET) on 21-23 December 2022. The aim of this conference is to bring together the leading academic experts and professionals from different disciplines of civil engineering around the globe to exchange new ideas, share knowledge and explore the cutting-edge technological developments in this field of civil engineering. The Editorial Board of ICACE 2022 also believes that this prestigious event provides not only a real platform of exchanging and sharing the scientific and technical information of relevant fields among all the participants from home and abroad but at the same time offers a bridge between academia and industries. This proceeding contains accepted papers of the 6th ICACE-2022, covering basic civil engineering branches. The book mostly covers some hands-on articles on different realistic problems in civil engineering. To be specific, the current applications of advanced civil engineering knowledge in developing countries have been highlighted. In general, the topic covers construction and building materials, eco-friendly ground improvement, waste disposal technique, waste management, the durability of different concrete structures, various aspects of foundation engineering, transport planning, water resources management and sustainable development scenarios in developing countries. As an event, the conference is considered to be highly successful. From 376 initially submitted abstracts, 342 abstracts were selected for full paper submission. Out of them, 210 full papers were received from the authors, which were undergone through a peer review process. Finally, 153 papers were selected for this proceeding. Following another double-blind review process on the finally selected papers, around 50 papers will be published in a Springer book series after the conference. To conclude, the team expresses its heartiest gratitude to fellow members of different committees for their hard and sincere work in materializing the event. The continuing success of this conference series shows us the light for the next ICACE 2024. Editorial Board ICACE 2022 Wed, 21 Dec 2022 00:00:00 GMT http://103.99.128.19:8080/xmlui/handle/123456789/360 2022-12-21T00:00:00Z http://103.99.128.19:8080/xmlui/handle/123456789/274 NUMERICAL INVESTIGATION OF THE BEHAVIOR OF RETROFITTED FLEXURAL CRACKED BEAM WITH EXTERNAL PLATE BONDING Kaish, A. B. M. Amrul; Alam, Md. Rabiul; Hassan, Md. Kamrul; Ullah, Shah Neyamat The aim of this paper is to study the effectiveness of using “External Plate Bonding” in flexural retrofitting of reinforced concrete (RC) beam. A simply supported rectangular RC beam is considered for this study. The steel plate and the CFRP (Carbon Fiber Reinforced Polymer) sheet are taken into consideration as bonded plates for retrofitting of RC beam. General purpose finite element program (ANSYS 11.0) is used to carry out non-linear analysis of uncracked, cracked and retrofitted RC beam. Based on the results obtained from numerical investigation it is seen that cracking in RC beam reduces the load carrying capacity of the beam. When retrofitting technique using steel or CFRP plate bonding externally is applied, stresses at the crack tip reduce significantly. Therefore, external plate bonding could be effectively applied in retrofitting of RC beam. Tue, 11 Jan 2011 00:00:00 GMT http://103.99.128.19:8080/xmlui/handle/123456789/274 2011-01-11T00:00:00Z http://103.99.128.19:8080/xmlui/handle/123456789/267 USE OF CRUMB RUBBER IN FLEXIBLE PAVEMENTS Khan, Azam; Imam, Mahmood Omar; Roy, Anupom Deb In the modern era, nationwide connectivity is a precondition for the economic and social development. In Bangladesh, flexible pavements count about 98% of paved roads. But these conventional bituminous pavements are highly susceptible to moisture damage, temperature variation and need routine maintenance. So, conventional bitumen modification is a crying need. Bangladesh generates about 90000 tons of non-biodegradable waste tires annually which creates a huge environmental problem. But this waste tires can effectively be incorporated with neat bitumen to make bituminous roads durable, less susceptible to temperature variation and highly resistant to moisture induced damage. Marshall mix design method was used to evaluate the performance of neat bitumen and crumb rubber modified bitumen (CRMB) mixtures whether they meet mix design requirements or not. Water sensitivity analysis was done for both bituminous sample. Loss of stability due to waterlogging was investigated by retained stability test. Resistance to lower temperature cracking and rutting was investigated by indirect tensile strength test. Stripping due to frost and thawing action was investigated by moisture induced damage test. After conducting all tests, it can be concluded that CRMB showed higher softening point and lower stripping value. Water sensitivity tests indicate modified bituminous mixes showed higher resistance to moisture induced damage, lower temperature cracking and rutting which in turn alludes less maintenance work is needed for CRMB road. So, it can be said that CRMB is a sustainable solution for durable and efficient road construction in Bangladesh considering economically and environmentally. Fri, 09 Feb 2018 00:00:00 GMT http://103.99.128.19:8080/xmlui/handle/123456789/267 2018-02-09T00:00:00Z