Browsing by Author "Kandamby, T"

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item: Conference-Full-text
Cement stabilized rammed earth for wall junctions of two storey houses
(Department of Civil Engineering, University of Moratuwa, 2011) Kandamby, T; Jayasinghe, C; Ratnayake, N
Today the whole world is faced with environmental issues due to unsustainable use of natural resources, especially for construction activities. Finding alternative materials and methods is vital to minimize the impacts and protect the environment from natural disasters. Further increase in demand as well as the rising cost of building materials in Sri Lanka has compelled the general public to use alternative materials. Rammed earth is an ancient technology that has been used in all part of the world to construct different types of civil engineering structures such as buildings, houses, roads and dams. In the current research, rammed earth technology was developed as a means of stabilizing soil with cement to produce an alternative material for building houses due to its valuable characteristics such as affordability, environment friendly, comfort, strong and durability. The mouldis placed in between two columns made out of compressed stabilized earth blocks (CSEB) which were manufactured as per the newly established Sri Lanka Standards. It was found that performances of CSEB columns with CSRE walls were not very successful due to differential shrinkage. Further, this study revealed that the development of wall junctions is necessary to satisfy* the design aspects and to avoid the present construction issues in order to popularize this technology. "L" and "T" junctions made with CSRE and timber mouldswas introduced as an alternative method for making wall junctions to overcome the above-mentioned issues. Method of constructing CSRE walls with CSRE junctions would encourage people to accept this technology* because it is economical and simple.
item: Conference-Abstract
Cement stabilsied rammed earth for wall junctions of two storey houses
Kandamby, T; Jayasinghe, C
Today the whole world is faced with environmental issues due to unsustainable use of natural resources, especially for construction activities. Finding alternative materials and methods is vital to minimize the impacts and protect the environment from natural disasters. Further increase in demand as well as the rising cost of building materials in Sri Lanka has compelled the general public to use alternative materials. Rammed earth is an ancient technology that has been used in all part of the world to construct different types of civil engineering structures such as buildings, houses, roads and dams. In the current research, rammed earth technology was developed as a means of stabilizing soil with cement to produce an alternative material for building houses due to its valuable characteristics such as affordability, environment friendly, comfort, strong and durability. The mould is placed in between two columns made out of compressed stabilized earth blocks (CSEB) which were manufactured as per the newly established Sri Lanka Standards. It was found that performances of CSEB columns with CSRE walls were not very successful due to differential shrinkage. Further, this study revealed that t he development of wall junctions is necessary to satisfy the design aspects and to avoid the present construction issues in order to popularize this technology. “L” and “T” junctions made with CSRE and timber moulds was introduced as an alternative method for making wall junctions to overcome the above - mentioned issues. Method of constructing CSRE walls with CSRE junctions would encourage people to accept this technology because it is economical and simple
item: Conference-Full-text
Enhancing bulk cargo unloading efficiency through AI: fuzzy logic application
(Sri Lanka Society of Transport and Logistics, 2024) Kandamby, T; Sugathadasa, P.T.R.S.; Weerasinghe, B.A; Gunaruwan, T. L.
The efficiency of bulk cargo vessel unloading processes is a pivotal determinant of the overall economic and logistical performance of maritime transport systems. The optimization of these processes directly influences the throughput of shipping operations and the effective use of port infrastructure. Traditional unloading methodologies, which heavily rely on manual coordination and static operational protocols, often struggle to meet the dynamic demands of modern maritime trade. This study develops and assesses an artificial intelligence (AI) and fuzzy logic-based model to optimize bulk cargo unloading for Handymax Carriers, which are equipped with 5 hatches and 4 cranes. Traditional manual methods present inefficiencies that this technology aims to mitigate by improving crane allocation and adapting dynamically to operational conditions. The research demonstrates that the AI-enhanced approach significantly reduces unloading times and operational costs, showcasing substantial improvements over conventional strategies. Through a series of simulations, complemented by real-world application and testing, this research illustrates the capabilities and benefits of AI-human collaboration in maritime logistics. The findings suggest that the integration of AI can significantly boost operational efficiency, improve safety outcomes by reducing human error, and enhance the overall allocation of resources. This approach not only contributes to the technological advancement in the field of maritime logistics but also sets a foundation for future developments in intelligent transport systems where human expertise and AI solutions are intertwined for superior performance and decision-making.