Effect of live load increment of old steel railway bridges in Sri Lanka -- Use of Markov chain method to predict service life of reinforced concrete bridge decks -- Thin-walled hollow steel box piers with energy dissipation mechanism under bi-directional cyclic loading -- Damage prediction by using nonlinearity of damping -- Effects of refined coconut oil and vegetable oil on the mechanical, thermal, morphological, and biodegradable properties of cassava starch-based thermoplastic (tps) films -- Batch adsorption study for the removal of textile dyes from aqueous solutions using pandanus amaryllifolius (rampe) leaves -- Tea waste bio-char as an absorbent for the removal of pb(ii) in the industrial wastewater -- Mechanical recycling and valorisation of disposable face masks: a potential solution to the covid-19 waste issue -- Assessment of dispersion potential of discarded coconut fibres in concrete pavements -- Evaluation of thermal conductivity of concrete using finite element analysis -- Effect of carbonation on microstructure of cement pastes with different water-to-cement ratios -- Development of lightweight aggregate concrete with locally available lightweight materials -- Assessment of heat of hydration of high-strength concrete -- Critical selection factors for contractors to make bid/ no-bid decision in construction projects in Sri Lanka -- Cost control techniques on the delivery of sustainable construction projects in Sri Lanka.