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 23 for “"concrete production"”.
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Biomass and Coal Fly Ash in Concrete: Strength, Durability, Microstructure, Quantitative Kinetics of Pozzolanic Reaction and Alkali Silica Reaction Investigations.
… and environmentally beneficial admixture in concrete production, partially replacing cement. However, strict interpretation of American Society of Testing and Materials (ASTM) and American Concrete Institute (ACI) standards prohibits use of fly ashes from any source other than coal in …
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Study on compressive, tensile and bond properties of used tire rubber reinforced concrete.
Concrete is one of the most widely used construction material in the world and the construction industry is looking for ways of making concrete using greener methods so as to reduce ecological effects on the environment that come as a result of large scale exploitation of natural aggregates. The …
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Study on compressive, tensile and bond properties of used tire rubber reinforced concrete.
Concrete is one of the most widely used construction material in the world and the construction industry is looking for ways of making concrete using greener methods so as to reduce ecological effects on the environment that come as a result of large scale exploitation of natural aggregates. The …
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Physical, mechanical and thermal conductivity of concrete containing granulated recycled pet bottle
Concrete is the most extensively used material in the construction industry. Its high demand has threatened the environment and led to the depletion of natural resources such as sand, which is the basic material of concrete. Many strategies have been proposed to overcome these issues, such as …
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Applications of Geopolymer in Civil Engineering: Feasibility Study of Loess Stabilization and Waste Concrete Recycling
… the Portland cement industry, which is used for concrete production and as the conventional soil stabilizer, is not environment friendly; (3) qualified natural aggregates for concrete production are being depleted; and (4) great amount of construction & demolition waste (C&D waste) is being …
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Manufacturing variability; effects and characterization through text-mining
… using this framework and find that around 19% of concrete production is used solely to overcome issues of manufacturing variability, and that reducing the variability when producing fiber composite parts for a Boeing 787 reduces fuel consumption by millions of dollars and saves ktons of CO₂ from …
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Irradiated recycled plastic as a concrete additive for improved chemo-mechanical properties in hardened cement pastes
Portland cement based concrete production contributes heavily to greenhouse gas emissions. Thus a need exists for the development of durable and sustainable concrete with a lower carbon footprint. This can be achieved when Portland cement is partially replaced with another material without …
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RCA: use and future possibilities
Reuse and recycling of concrete is essential for construction purposes. There has been progressive development in construction projects but at the same time it has an inverse effect on the environment. Concrete structures are built and demolished continuously all over the world, generating tons of …
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Sustainable Access Income through Metal Scrapers Collection and Sales for Industrial Recycling in Dar es Salaam
… community members do, is the engagement in concrete production sand mining as their basic activities and fishing which contribute to their household income for income poverty reduction. However, under this study there were four objectives which set to facilitate solving the problem, these …
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Characterization of Quarry By-Products as a Partial Replacement of Cement in Cementitious Composites
Concrete is the most widely used man-made material in the world. Its versatility, strength, and relative ease of construction allow it to be used in the majority of civil infrastructure. However, concrete production plays a significant role in greenhouse gas emissions, accounting for around 8% of …
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Analysis of Contaminants on Ground Glass Pozzolan and the Effects on Pozzolan Performance in Mortar
… can reduce the CO2 emissions associated with concrete production and utilize waste glass that would otherwise end up in landfills. In the United States, municipal solid waste (MSW) stream recycling operations collect plastic, glass, paper, and other recyclables together in single stream …
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Integration of Zip-formwork and conventional formwork systems for shape-optimized concrete in large scale construction
Cast-in-place concrete production plays a dominant role in the architecture, engineering and construction (AEC) industry, particularly in large-scale projects, contributing significantly to global material consumption, construction costs, and embodied carbon emissions. Shape optimized concrete has …
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Acoustic and non-acoustic performance of coal bottom ash as sound absorptive material for reducing railway noise level
… pollution in urban areas. Furthermore, the huge production of Coal Bottom Ash (CBA) is treated as waste and often placed into impoundment ponds, silos or landfills, which has contributed to environmental issues. Usage of CBA in concrete production in reducing railway noise pollution reduce the …
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The potential of porcelain waste as sand replacement to produce high strength concrete
… using porcelain waste as sand replacement in the concrete production. Three different samples of concrete have been casted (cubes, cylinders and beams), with different sizes, the water cement ratio adopted is 0.5 and 0.37 when superplasticizer was added with mix proportion of concrete 1:1.5:3. The …
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Implications of transitioning to green infrastructure: a quantitative sustainability assessment of stormwater management
… well as data from the literature concluded that concrete production used during green infrastructure retrofits contributed 89.3-99.6% of the life cycle environmental impacts. While the studied green infrastructure retrofit introduced 4.35x107 kg CO2 equivalents to global warming and had many …
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Use of grape pomace as a fine aggregate in concrete
… natural resources, which is most evident in the production of concrete. With the global shift towards sustainable construction materials and techniques, research has been conducted into the replacement of cement or aggregates with alternative materials. These alternatives range from recycled …
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Recovery and valuation of ultrafine marble dust contained in waste slurries deriving from carbonatic natural stones processing plants
… or secondary raw materials for use in other production processes, thereby pursuing the dual objective of minimizing waste generation and disposal and producing added value. The investigation focused on the marble district area in Orosei (North-East Sardinia). Firstly, chemical physical and …
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AI-powered Data Mining for the Development of Sustainable Concrete Materials
… collections. The sustainable transition of the concrete industry, a major contributor to global CO₂ emissions, demands both operational optimization and scientific innovation. This thesis presents comprehensive data mining frameworks for both industrial and literature source data to support the …
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Experimental studies of sorption and transport of moisture in cement based materials with supplementary cementitious materials
… materials (SCMs) to limit CO2 emissions from concrete production. Knowledge about the moisture properties of concrete made from these blended cements is limited. This project has therefore been an attempt to further develop our understanding of the moisture properties of cement based …
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Modification and performance of activated carbon for CO2 sequestration in pervious concrete
Concrete is one of the most commonly used material in the construction industry, with a global production of ∼10 billion m3/year. The production of Portland cement, the principal binder in most types of concrete, accounts for ∼ 5–7% of global anthropogenic carbon dioxide (CO2) emissions. Carbon …
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