• Development of a Formula to Quantify Emissions Generated from Diesel Vehicles in Sri Lanka 

  Konara, K.M.T.N.; Samarasekara, G.N.; Chaminda, G.G.T.; Perera, S.; Dissanayaka, A.W. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Unprecedented increase of greenhouse gases (GHG) have become a burning issue in the current world. Mainly Carbon dioxide (CO2) is the most critical pollutant causing greenhouse effect. Approximately 50% of the total ...
• Arial Patrol for Bridge Routine and Post Earthquake Emergency Inspection Using Small Aerial Photography UAV 

  Dang, J.; Haruta, D.; Shrestha, A.; Endo, H.; Matsunaga, S.; Kasai, A.; Wang, X. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  In this paper, the possibility of use General Purposed UAVs is verified by a series of tests. A smart device based control app is developed based on the Software Development Kit (SDK) released by the UAV maker for ...
• Investigation on Modified Hot Mix Asphalt Concrete with PET as Binder Additive and Fly Ash as Filler 

  Muhammed, M.H.; Rengarasu, T.M.; Bandara, W.M.K.R.T.W. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Suitability of modified Hot Mix Asphalt Concrete (HMA) with waste materials was investigated in this study. Marshall stability, Marshall flow and air void ratio were used as criteria to measure the suitability of modified ...
• Effects of Temperature Variation on Hot Mix Asphalt Concrete with Saw Dust Ash Used as Aggregates 

  Yasanth, R.G.N.; Renqarasu, T.M.; Jegatheesan, N.; Bandara, W.M.K.R.T.W. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  This study attempts to identify the sensitivity of modified Hot Mix Asphalt concrete for temperature variation. Saw dust ash was used as a partial replacement of the conventional filler used in contemporary road construction ...
• Estimation of Average Daily Traffic (ADT) Using Short - Duration Volume Counts 

  Meeqahapola, M.D.D.V.; Ranamuka, R.D.S.M.; Sathyaprasad, I.M.S. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  The average daily traffic (ADT) is utilized as an important basic data in transportation and road sector to predict the future service level of the road based on the planned traffic volume and to determine the geometry ...
• Investigation of Suitability of Using Unique Price Indices (ICTAD) for Price Adjustments in Construction Projects 

  Ganegoda, C.K.; Malkanthi, S.N. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  The nature of construction industry is, it consumes huge cost and it needs considerably long duration. This time and cost are interrelated. If the project duration is too long, the initial estimation may not sufficient ...
• Investigation of Effect of ICTAD Price Fluctuation Formula Procedure to Recover the Actual Materials Cost of Contract 

  Wijesinghe, W.M.P.M.; Malkanthi, S.N. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  The cost estimation prepared during the bidding stage may not same as the cost calculated at the time of actual work done. This is because open market escalation of construction inputs. To address this problem ICTAD has ...
• Assessment of FlyAsh Based Geopolymer Concrete Paving Blocks for Sri Lankan Roads 

  Karunarathne, D.V.; Arulolipavan, K.; Udamulla, K.M.L.A. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  The coal fired thermal power plants generate solid waste in the form of fly ash and pond ash. Disposal of these wastes is a major engineering challenge. Since large amountjof raw materials is needed in the production of ...
• Variation of the Start-Up Time of Pedestrians with Their Familiarity to the Signal Phase 

  Jayatilake, P.A.S.R.; Premachandra, B.M.N.M.; Wickramasinghe, W.M.V.S.K. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  In allocating green time for pedestrians’ signal phase, most of the signal time calculations are paying attention only towards the time taken by pedestrians to traverse the crosswalk. But it may result in dangerous ...
• Development of Trip Attraction Rates and Parking Standards for Supermarkets in Kandy Area 

  Suthakaran, S.; Dharmakeerthi, U.G.S.; Sathyaprasad, I.M.S. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Trip attraction rates are major inputs needed in traffic impact assessment of commercial developments. The objectives of this study are to develop models to estimate trip attraction rates for person trips and vehicle ...
• Usage of Fly Ash, Quarry Dust and Lime for Upper Sub-Base Stabilization 

  Thilakarathne, H.W.M.B.; Sirisena, V.G.P.; Karunananda, P.A.K. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Soil stabilization refers to the process of changing soil properties to improve strength and durability. There are many techniques for soil stabilization including adding materials such as quarry dust, fly ash, slag ...
• Identification of Construction Waste in High-Rise Building Projects in Sri Lanka & Solutions from a ‘Lean’ Perspective 

  Wijesekare, S.N.; Tantirimudalige, M.N.; Kesavan, M. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  The construction industry in Sri Lanka is a major contributor to the country’s economic growth hence the importance of eliminating all forms of waste. This study focused on identifying principal forms of construction ...
• Upper Sub-Base Stabilization with Quarry Dust and Lime 

  Jayakody, J.A.T.K.; Sirisena, V.G.P.; Judith, H.L.D.M.A. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Soil stabilization is one of the most suitable alternatives which are widely used in pavement construction. Soil stabilization techniques are used to improve the engineering properties of soil such as strength and ...
• Water Quality Modelling of Gin River Downstream 

  Jayasena, W.M.S.D.; Chaminda, G.G.T.; Silva, G.H.A.C.; Wijesiri, I.D. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  This study was aimed to evaluate the water quality of Gin River downstream by using QUAL2k modelling software. Calibrated and validated QUAL2k model was used to predict key water quality parameters; Dissolved Oxygen (DO), ...
• Potential of Improving Air Quality and Thermal Comfort Via Green Boundary Walls 

  Javasundara, J.H.D.K.H.; Samarasekara, G.N.; Nandapala, K.; Chaminda, G.G.T. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  World is facing many problem due to increasing atmospheric temperature and air pollution. Excess of waste, heat release, lack of vegetation, high thermal capacity material in urban areas are several reasons for global ...
• Comparison of Groundwater Quality in Southern Province 

  Balasooriva, B.M.J.K.; Chaminda, G.G.T.; Ellawala, K.C.; Kawakami, Tomonori (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Groundwater quality in southern province is varying considerably in between Galle, Matara and Hambantota. Hambantota district has recorded as Chronic Kidney Disease in unknown etiology (CKDu) prevailing districts. Some ...
• Methane Emissions in Porous Media under different Atmospheric Conditions: A Bench-Scale Computational and Experimental Study 

  Deepagoda, Chamindu; Smits, Katheleen (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Fugitive atmospheric emission of methane, a potent greenhouse gas with a 25-fold global warming potential compared to CO2, from the natural gas industry has raised significant environmental and health concerns during ...
• Evaluation of Chemical and Microbial Quality of Bottled Water Available in Sri Lankan Market 

  Ellawala, K.C.; De Rekha, E.P.R.; Bandara, W.D.L.S.; Kodithuwakku, Hasini (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Production of bottled water in Sri Lanka has been started in the late 1§80's. Many studies have proved that consumers believe that bottled water is safe and tastes better. However, some studies on bottled water quality ...
• Biodegradation of Grease Trap Waste by Lipolytic Fungi under Local Ambient Conditions 

  Witharana, A.; Ratnayake, N.; Manatunge, J.; Nanayakkara, C.M. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Relatively higher concentrations of fat, oil and grease (FOG) are contained in hotel and restaurant wastewater which makes it difficult to be treated through cost-effective conventional biological treatment systems. The ...
• Removal of Phosphorus from Nutrient Enriched Water by Using Combinations of Three Aquatic Macrophytes Found in Sri Lanka 

  Kodithuwakku, Hasini; Perera, W.C.S.; Sewwandi, S.H.I.; Ellawala, K.C. (Department of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Sri Lanka., 2017-03-16)

  Phosphorous is one of the major nutrients, which contribute for increased eutrophicationof lakes and natural waters. Aquatic plants can be used to reduce the phosphorus in water and commonly used in wastewater treatment ...

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