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Guidelines for the development of products from post-consumer glassWhitacre, Laura Frances, Britnell, Richard E., January 2009 (has links)
Thesis--Auburn University, 2009. / Abstract. Vita. Includes bibliographical references (p. 101-105).
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Mechanical property characterization of recycled thermoplasticsBargo, Johnny E. January 2000 (has links)
Thesis (M.S.)--West Virginia University, 2000. / Title from document title page. Document formatted into pages; contains xvii, 143 p. : ill. (some col.) Includes abstract. Includes bibliographical references (p. 104-105).
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Re-fabricate evolving design through user interaction : exegesis submitted to Auckland University of Technology in partial fulfilment of the degree of Master of Art and Design, 2009 /Laraman, Debra. January 2009 (has links)
Exegesis (MA--Art and Design)--AUT University, 2009. / Includes bibliographical references. Also held in print (97 leaves : ill. ; 30 cm.) in the Archive at the City Campus (T 746.92 LAR)
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Materials science appraisal of recycled construction materials for roadwaysOgwuda, Olisanwendu Ikechukwuka January 2007 (has links)
This thesis reports on a materials science appraisal for recycled construction materials in roadways, that supports engineering decision-making. Inconsistent performance criteria for roadway materials and the variable nature of material source have prompted the need for this research. The aim of the study is to investigate the application of a materials science appraisal to recycled construction materials for use in roadways. The investigation is undertaken through a literature review of roadways, conceptual development of the materials science appraisal methodology, and demonstration of the application of the materials science appraisal to recycled construction materials; and how this supports engineering decision-making. The literature review revealed that there are numerous and proven uses of recycled and secondary materials in roadway applications but there was a lack of necessary integration of materials into categories by material-type, which can better describe behaviour in an engineering situation. Three novel fundamental material types (ceramic, metallic, and polymeric) have been described. The conceptual development of the innovative and novel materials science appraisal, based on material-type, has defined how materials science through a systematic step-by-step procedure can be used to achieve engineering sustainability in roadways and provide support in engineering decision-making. The application of the novel concept of the materials science appraisal to recycled construction materials is shown through the essence of laboratory testing. The results from the materials science appraisal, together with sensitivity analysis, give an informed engineering decision on product choice. The appraisal is novel in that it is proposing a new theory on materials science and developed a paradigm shift in the evaluation of recycled construction materials. The appraisal overcomes the absence of materials science thinking in the field of roadway engineering. The materials science appraisal is of benefit to various stakeholders (client, consultant, supplier and contractor) as it provides a method for addressing material uncertainties. A system now exists for introducing into designs and any contract the principles of the materials science appraisal that will be of great benefit to industry.
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Agregados reciclados de resíduos de concreto: um novo material para dosagens estruturais / Recycled aggregates of concrete residues: a new material for dosage of structural concreteGonçalves, Rodrigo Dantas Casillo 20 February 2001 (has links)
A maioria dos processos de fabricação de um produto geram resíduos. Quando não se dispõem de uma tecnologia para o seu reaproveitamento, certamente este material será depositado na natureza e poderá ocasionar inúmeros problemas ambientais. Este trabalho trata da reutilização dos resíduos de concreto como agregado, para dosagens de concreto estrutural. Na maioria das vezes, os agregados provenientes de resíduos são considerados materiais de baixa qualidade, isso ocorre pelo desconhecimento de suas propriedades e da tecnologia para seu emprego. Fazendo uma pesquisa bibliográfica, teórica e experimental, o objetivo deste estudo foi de uma maneira informativa, contribuir para o entendimento do material, caracterizando algumas propriedades do agregado e do concreto reciclado. / Most of making process of a product produces residue. When there isn\'t a technology to use it again, certainly this material will be deposited in nature and it can bring about countless environmental problems. This work presents the reuse of concrete residues as aggregate, for dosage of structural concrete. Most of times, the aggregates provenient from the residues are considered low quality materials, it occurs due to the lack of knowledge of its properties and technology for its use. Doing a bibliographical, theorical and experimental research, the objective of this study was, on an informative way, to contribute for understanding of the material, characterizing some properties of aggregate and the recycled concrete.
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Agregados reciclados de resíduos de concreto: um novo material para dosagens estruturais / Recycled aggregates of concrete residues: a new material for dosage of structural concreteRodrigo Dantas Casillo Gonçalves 20 February 2001 (has links)
A maioria dos processos de fabricação de um produto geram resíduos. Quando não se dispõem de uma tecnologia para o seu reaproveitamento, certamente este material será depositado na natureza e poderá ocasionar inúmeros problemas ambientais. Este trabalho trata da reutilização dos resíduos de concreto como agregado, para dosagens de concreto estrutural. Na maioria das vezes, os agregados provenientes de resíduos são considerados materiais de baixa qualidade, isso ocorre pelo desconhecimento de suas propriedades e da tecnologia para seu emprego. Fazendo uma pesquisa bibliográfica, teórica e experimental, o objetivo deste estudo foi de uma maneira informativa, contribuir para o entendimento do material, caracterizando algumas propriedades do agregado e do concreto reciclado. / Most of making process of a product produces residue. When there isn\'t a technology to use it again, certainly this material will be deposited in nature and it can bring about countless environmental problems. This work presents the reuse of concrete residues as aggregate, for dosage of structural concrete. Most of times, the aggregates provenient from the residues are considered low quality materials, it occurs due to the lack of knowledge of its properties and technology for its use. Doing a bibliographical, theorical and experimental research, the objective of this study was, on an informative way, to contribute for understanding of the material, characterizing some properties of aggregate and the recycled concrete.
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Shrinkage & Modulus of Elasticity in Concrete with Recycled AggregatesSchoppe, Brett Michael 01 June 2011 (has links) (PDF)
This paper presents results on experimental research for concrete produced using recycled coarse aggregates (RCA). Five types of coarse aggregates were used in this study, four of which were RCA. The main purpose of this research was to examine how different types and properties of coarse aggregate affected compressive strength, modulus of elasticity, and shrinkage in concrete when natural coarse aggregates were replaced with RCA. Concrete batches were made with water-cement (w/c) ratios of 0.30, 0.45, and 0.60, and substitution percentages ranged from 0% to 100% of natural aggregate with RCA. Test results clearly show that compressive strength, modulus of elasticity, and shrinkage greatly depend on the quality and type of coarse aggregate used. In addition to testing of hardened concrete, predictive models for elasticity and ultimate shrinkage were developed to formulate and reinforce proposed conclusions about the properties and performance for the different RCA.
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Product disposalWalker, Rebecca Elaine, January 1900 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.
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Optimizing usage of recycled material in a remanufacturing environmentShah, Purvin. January 2005 (has links) (PDF)
Thesis (M.Sc.)--State University of New York at Buffalo, 2005. / Includes bibliographical references.
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Investigation of cracking resistance of recycled Superpave mixturesGao, Ya January 1900 (has links)
Master of Science / Department of Civil Engineering / Mustaque A. Hossain / The use of economical and environmentally friendly recycled asphalt materials has become increasingly popular for asphalt pavement construction. Although reclaimed asphalt pavement (RAP) and recycled asphalt shingles (RAS) are typically used in hot-mix asphalt, increasing the amount of RAP and RAS materials increases the potential for premature pavement distresses, especially cracking. This research evaluated four recycled Superpave mixtures with different RAP and RAS contents from Kansas Department of Transportation projects. Two of the mixtures contained 10% RAP and 5% RAS, while the other two mixtures contained 25% RAP but no RAS. Illinois semicircular bending and Florida indirect tension tests were performed to assess mixture cracking and fracture properties. Results showed that mixtures containing 10% RAP and 5% RAS have relatively low fracture energy, creep compliance, energy ratio, and flexibility index but high resilient modulus. These results indicate that mixtures containing 10% RAP and 5% RAS are stiffer, more prone to cracking, and tend to absorb less fracture energy. Mixtures with 25% RAP and no RAS showed the opposite behavior.
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