Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"Expanded Polystyrene"”.
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Storage life of fresh whitefish fillets in grass fiber boxes and expanded polystyrene boxes
… and extending the shelf life of fresh fish. Expanded polystyrene (EPS) packaging is widely used in storage and transportation of fresh fish. Numerous studies have declared that a significant percentage of polystyrene boxes are collected in landfills after being used and discarded which leads …
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The performance of lightweight concrete brick containing expanded polystyrene and palm oil fuel ash
… the production of lightweight concrete brick is Expanded Polystyrene (EPS). However concrete materials containing EPS were observed to be low in strength and fire resistance performance. On the other hand, Palm Oil Fuel Ash (POFA) which is unprofitable agricultural waste that is extensively …
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An investigation into the structural suitability of standard grade Expanded Polystyrene (EPS) as an innovative building material
Submitted in fulfilment of the academic requirements for the Degree of Master of Engineering, Durban University of Technology, Durban, South Africa, 2019.
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Sound absorption characteristic of lightweight brick containing Expanded Polystyrene Beads (EPS) and Palm Oil Fuel Ash (POFA)
… characteristic of lightweight bricks containing expanded polystyrene beads (EPS) and palm oil fuel ash (POFA). In order to fulfill the standard of a lightweight brick to be used as a building element, the physical and mechanical properties were test first. EPS was used as a sand replacement …
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Guidelines for the Use of Expanded Polystyrene (eps)-Block Geofoam for the Function of Lightweight Fill in Road Embankment Projects
This dissertation presents a design guideline or procedure as well as an appropriate material and construction standard. It is anticipated that the results of this study will encourage greater and more consistent use of EPS-block geofoam as an alternative for construction of embankments over soft …
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Seasonal and long-term change in the abundance, accumulation and distribution of beach litter within Table Bay, Cape Town, South Africa
… (116.6 kg) sampled in 2019, plastics (including expanded polystyrene) dominated at both sites in terms of numbers (Milnerton: 97.8 %; Koeberg: 98.7%) and mass (Milnerton: 45.2%; Koeberg: 58.9%). The accumulation rates were generally an order of magnitude greater at Milnerton than Koeberg. …
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A Tale of Two Dogs Fine Art Exhibit
… leads to a relevant way of seeing. Using expanded polystyrene foam as a sculpture medium, a series of artworks created during the MFA research process are conceptually analyzed to explore the value of maintaining a multiplicity of viewpoints within a single composition. Through the …
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Development of low cost thermal insulating materials
… and existing thermal insulating materials. The expanded polystyrene obtained from Sagex (Pty) Ltd and polyester obtained from Isotherm (Pty) Ltd. were evaluated and compared to the manufactured recycled polymer slabs and expanded polyethylene foams (EPEF). Expanded polyethylene foam and recycled …
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Concept design for a folding bicycle helmet
… a wave cushioning material and is combined with Expanded Polystyrene (EPS) foam. Preliminary studies by the manufacturer indicate that this new material uses EPS foam pads in designs that provide better protection from traumatic brain injury. This new material is approximately half the weight of …
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Part I: In-situ fluorometric quantification of microalgal neutral lipids Part II: Thermal degradation behavior of investment casting polymer patterns
… of polymeric pattern materials, including expanded polystyrene (EPS) foam, polyurethane foam, and epoxy stereolithography (SLA) patterns, that are used in investment casting. Density, elastic modulus, expansion coefficient, thermal degradation behavior, etc. were experimentally investigated …
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Identification of volatile organic compounds in the early stages of fire from commercial products
… A number of different insulation materials (expanded polystyrene, phenolic foams, polyisocyanurate foams, polyurethane foams and wool-based insulation materials) were analysed via X-Ray Fluorescence, Energy Dispersive X-Ray analysis and a CHNS elemental analyser to provide a brief overview of …
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Predicting the thermal performance of bio-based cold chain packaging system
… In contrast, polymer-based materials such as expanded polystyrene (EPS) and polyurethane (PU) remained relatively stable. Energy-balance modeling supported these observations, confirming humidity as a major external driver of heat transfer in porous materials. Beyond performance, the study …
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Characterisation of Polymer-based Wood-substitute for Sustainable Building and Construction
… has shown that the use of waste recycled polystyrene can be a suitable and sustainable wood-substitute in building and construction industries. Extensive laboratory work had been carried out to characterise the performance of the material under investigation. Recycled waste expanded …
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Análise do desempenho térmico de sistema constutivo de concreto com EPS como agregado graúdo
… concrete blocks which composition aggregates the expanded polystyrene (EPS) reused in the shape of flakes and in the shape of a board, resulting in a “light concrete”. Experiments were conducted, systematically, with a wall (considerate as a standard) constructed with blocks of …
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Lateral thermal buckling of pipelines on the sea bed
… small-scale compressible base model, with an expanded polystyrene base compressed beneath a silicone rubber strip, has been developed to represent the constrained thermal loading of a pipeline lying on the seabed. This physical model is used, in addition to a nonlinear finite-element analysis, …
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Methodology for the Design of Timber Frame Structures Utilizing Diaphragm Action
… pegs or wedges. SIPs consist of a layer of rigid expanded polystyrene insulation covered on one side by oriented strand board and on the other side by oriented strand board, drywall, or some other interior finish. In timber frame buildings, SIPs also serve as diaphragm elements, which are flat …
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Development of straw insulation board : fabrication methods, structure, thermal performance
… substantially less than either the cost of the expanded polystyrene available in Pakistan, or the retail cost of any rigid board insulation sold in North America.
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From local and bulk structure-flow correlations to macro-scale transport properties with MRI: applications using deformable porous media and deep learning
… porous system (composed of 1.26 mm diameter expanded polystyrene spheres) by conducting non-spatially resolved NMR propagator experiments. It was found that dispersion increased with decreasing permeability and that it almost doubled with strain due to long-range heterogeneities. Macro-scale …
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Estudio de transformación de poliestireno expandido en pintura ecológica como recubrimiento en estructuras metálicas del sector industrial en Barranquilla
La finalidad de esta investigación es poder diseñar, proponer, construir y exponer los resultados sobre la puesta en marcha de la transformación del poliestireno expandido EPS, donde fue utilizado principalmente el marco de referencia basados en los lineamientos planteados por la guía Project …