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 20 of 30 for “"Recycled material"”.
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Recycled material web map: connecting consumers and producers
… connects producers and consumers of recyclable material was developed to assist engineers and contractors in the beneficial reuse of recycled materials in transportation projects. The Recycled Material Web Map is comprised of four core layers: producers, stockpiles, specifications, and case …
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Recycled material selection for affordable and sustainable homes using large scale additive manufacturing
… which is often driven heavily by the cost of materials required. Plastic waste is also at an all-time high, with over 5 billion tons of plastic on the earth's surface and in its oceans. This waste will take hundreds of years to degrade if not longer and incentives and use for recycled plastic …
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ASPECTS OF RECYCLING OF CARBON FIBRE REINFORCED POLYETHERETHERKETONE (CF/PEEK)
… (CF/PEEK) composite, as it is an expensive material worth recycling. In its virgin form, CF/PEEK has excellent mechanical properties. Thus it is hoped that even after recycling, the extent of degradation to its mechanical properties will still be acceptable and the recycled material can be …
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Characterisation of network structure in recycled rubber
… rubber crumb is the most valuable type of recycled material. However, only a limited amount of untreated crumb can be used in new tyres due to significant property loss. The de-vulcanisation process offers the potential for providing high quality recycled material that can be used as a …
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Development of Commercial Applications for Recycled Plastics Using Finite Element Analysis
… the suitability of thermo-kinetically recycled plastics for use in commercial product applications using finite element analysis and statistics. Different recycled material blends were tested and evaluated for their use in commercial product applications. There are six different blends …
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Direct Lithium-ion Battery Recycling to Yield Battery Grade Cathode Materials
… (NCM) are one of the most essential cathode materials for EV applications due to their long cycle life, high capacity, and low cost. In 2008, 18.9% of Lithium-ion batteries used NCM cathode material worldwide while this number increased to 31% six years later. An environment–friendly and …
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Relationship between construction waste generation and recycling practices in Southern Johor
… such as concrete, metal, timber and packaging material waste. The methods of the research that used in this study are field work measurement and questionnaire survey approach. The construction waste data was collected over a period of nine months using observation, direct measurements and …
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Methods for managing uncertainly in material selection decisions : robustness of early stage life cycle assessment
Utilizing alternative materials is an important tactic to improve the environmental performance of products. Currently a growing array of materials candidates confronts today's product designer. While life-cycle assessment (LCA) methods provide quantitative input into this selection decision, their …
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El estudio de comportamiento de los firmes reciclados in situ con cemento
… de investigaciones, esta Tesis caracteriza el material estructuralmente y determina las leyes de comportamiento. Para ello, seleccionado un tramo de carretera tipo (SA-801), reciclado y transportado al laboratorio, se ensayó durante tres años (más de 350 roturas, muchas de ellas dinámicas), …
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Industrial ecology of metals : barriers and incentives to closing loops
… of metals, barriers and incentives to closing material loops, and policy interventions associated with loop closing. The NiCd case shows how industry policy and public policy converge towards creation of an environmentally beneficial end-of-life market. The industry coordinated take back …
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Melting processes in small basaltic systems: the Auckland Volcanic Field, New Zealand
… (containing discontinuous regions of recycled material in the form of eclogite veins), and the extent of asthenospheric melting is hypothesised to control the size of volcanic eruption. In each melting event, magmas are variably mixed with a cryptically subduction-metasomatised …
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Construction and demolition waste management : assessment of demand and supply of recycled materials in the Western Cape
… and demolition waste into potential building materials to be reused elsewhere. This study investigated the supply and demand of recycled construction materials in the Western Cape, and aimed to determine the perception held by important stakeholders about these materials. A qualitative …
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Design and Synthesis of Polymer Networks and Branched Polymers for Triggered Deconstruction of Self-Assembly
… crisis. While many plastics can technically be recycled, robust plastics which are held together by permanent covalent crosslinks–thermosets, which make up 20% of all plastics–cannot generally be reprocessed or broken down. Generalizable strategies for the deconstruction and/or reprocessing of …
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Recycling of worn-out vehicular brake pads and discs
… this issue, including the recycling of friction materials recovered from exhaust brake pads and the refurbishing of worn-out brake discs by coating with metallic powders through direct energy deposition. For refurbishing worn-out brake discs, laser deposition technique I indicated to be a …
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A laboratory investigation on the shear strength characteristics of soil reinforced with recycled linear low-density polyethylene
… economically viable solutions. The use of this recycled material in various applications, such as soil reinforcement addresses the need for engineering solutions with a multifaceted approach which strike a balance between environment, economy and equity. This has been the driving force behind …
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INTEGRATION OF NATURAL DATA WITHIN NUMERICAL MODEL TO THE GEODYNAMICS RECONSTRUCTION OF AN INNER PART OF THE ALPINE BELT.
… exists between mantle rheology and the amount of recycled crustal material: the larger the viscosity contrast between hydrated and dry mantle, the larger the percentage of recycled material into the mantle wedge. Slab dip variation has an impact on the amount of the continental recycling and the …
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Upcycling of Polyolefins Through Functionalization
… constitute an important component of a range of materials used in modern society. Polyolefins (PO), mainly low-density polyethylene (LDPE), high-density polyethylene (HDPE), and polypropylene (PP), constitute ~57% of global plastic production, taking an essential role in our every day. Yet, the …
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Impact of reclaimed asphalt pavements on pavement sustainability
… and economy. Asphalt concrete is the most common material to construct highway pavements. Billions of dollars are spent every year to maintain and rehabilitate two-million-mile the U.S. highway network. Asphalt pavement recycling is one of the few ways to reduce the amount of dollars spent on …
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Effects of Reclaimed Asphalt Pavement on Mechanical Properties of Base Materials
… effect of RAP on the mechanical properties of recycled base materials has not been well documented. The purpose of this research was to investigate the influence of RAP on the mechanical properties of recycled base materials typical of northern Utah. Two sources of RAP, two sources of base, and …
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Entwicklung eines kontinuierlichen Extraktionsverfahrens zur Reinigung von Kunststoffschmelzen mittels überkritischem Kohlendioxid
… purification for plastics, for both virgin and recycled material. Abidance by the law demands new processing technologies for purifying plastics. The extraction with supercritical carbon dioxide could be an approach. Supercritical carbon dioxide is characterized by a high diffusion coefficient, …
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