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 76 for “"flooring"”.
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Plasticized lignin-PVC blends for flooring
… replacing part of the PVC in the formulation of flooring materials by lignin, an abundant and renewable natural polymer. The utilization of lignin, is aimed to develop more cost-effective flooring materials with appreciable mechanical properties, to decrease their susceptibility to microbial …
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Moisture properties of self-levelling flooring compounds
Self-levelling flooring compounds (SLC) are used to level substrates (mainly concrete slabs) before applying final floor coverings. Although it is an extensively used product, only limited research has so far been published concerning their moisture properties. This report focuses on moisture …
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Polyolefin plastomers in composites for flooring applications
For flooring applications, calcium carbonate-filled poly(vinyl chloride), PVC, has long been the material of choice for both flexible sheeting and tile products. However, PVC-based formulations must be processed with plasticizers, which have recently raised some concerns from a sustainability point …
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Seismic Performance of Precast Concrete Flooring Systems
… of the support connections for precast concrete flooring systems. The objective of this research was to investigate the support connection detailing for these precast concrete flooring systems that had been identified as potentially vulnerable to earthquake induced non-ductile failure modes and …
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Computer aided design of structural flooring systems
Thesis (Civ.E)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1985.
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Mercury Emissions from Polyurethane Flooring in Gymnasiums
… throughout the country installed synthetic flooring in indoor gymnasiums that contained mercury which was used as a catalyst in the polyurethane formulation. Many of these floors now have been found to be releasing mercury vapors into the school gymnasiums, leading to a concern that these …
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Development of a Reusable Thin-Shell Concrete Flooring System
… of a lightweight and carbon-efficient concrete flooring system which enables disassembly, reuse, and reconfiguration, achieved by leveraging modern digital fabrication techniques and a funicular form. Inspired by the classical fan vault geometry, the segmented fan concrete shell consists of …
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Studies of moisture and alkalinity in self-levelling flooring compounds
… of the materials involved. <p> Self-levelling flooring compounds (SLCs) that provide smooth horizontal surfaces are used to level the substrates (mainly concrete slabs) before floor coverings are applied. Although such compounds are used extensively, only limited research on their moisture and …
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The Impact of Environmental Certification on U.S. Hardwood Flooring Manufacturers
A nation-wide survey of hardwood flooring manufacturers was conducted in the spring of 1998. The objectives of the study were to determine the differences in beliefs towards certification between certified and non-certified hardwood flooring manufacturers and to explore the decision to certify and …
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Low-Cost Masonry for the Design of Barrel-Vaulted Flooring Systems
The world's population is projected to grow rapidly in urban areas, with a projected 2.5 billion more urban dwellers by 2050 (UN-DESA, 2019). This urban growth will notably concentrate in Less Economically Developed Countries (LEDCs), where 16 of the top 20 most populous cities are anticipated to …
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Development and validation of a laminate flooring system sound quality test method
Laminate flooring manufacturers have received negative feedback from customers on the sound quality of laminate flooring installations. Customers express a preference for the sound of traditional hardwood floors over that of laminate flooring composites. Consumers notice a difference between the …
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Impact sound insulation of flooring systems with polyurethane foam on concrete floors
… glass fibre quilts but other materials such as flooring grade polystyrene are increasingly used. Recently, shallow profile floating floors comprising flexible open cell polyurethane foam resilient layers have been developed. These systems are attractive for refurbishment projects since they can …
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Vibration test and parametric study of concrete flooring system towards human comfort
In recent years, there has been an increase in floor vibration problems of structures such as residential and commercial buildings. Vibration is defined as one of the serviceability issues related to the human comfort. Human activities is the one of the factor vibration in buildings and vibrations …
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Numerical and Experimental Investigations on Static Behaviour of Composite Cold-Formed Steel and Timber Flooring System
… floorboards for constructing lightweight flooring systems in residential buildings is widespread. However, the potential benefits of composite action that arise due to the interaction of the top flange of cold-formed steel joist and the bottom surface of timber floorboard due to shear …
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Moisture redistribution in screeded concrete slabs
… to the top screed surface under semi-permeable flooring, thus elevating the relative humidity, RH, and possibly exceed the critical humidity level. Passing the critical humidity level may result in material damages on the flooring and adhesive. In order to avoid such damages there is a need of a …
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Preliminary Examination of Factors Affecting Manufacture of Value Added Products From Recycled Pallet Parts
… value added products, with a focus on oak strip flooring. Issues examined included pallet disassembly efficiency, characteristics of recovered boards, and yield of blanks compatible with commercial flooring production. Disassembly of pallets was affected by pallet design. Overall 81% of the …
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Study of the physical mechanical properties of capirona wood (Calycophyllum spruceanum (bentham)Hooker f.ex.schumann) as potential for solid wood flooring production
… "capirona" in Peru, due to its potential in wood flooring production. Samples were taken from six trees in a plantation in Curimaná-Ucayali, Peru, and tests were conducted according to ASTM standards (ASTM D 143-94 – 2 000). The results revealed that capirona has a basic density of 0.68 g/cm3, …
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Efficacy of Selected Powdered Floor Treatments and Turmeric Rhizome Powder Against Salmonella, E. coli, and L. monocytogenes on Polyurethane-Concrete Flooring Material Carriers
<p>The flooring in a food processing environment can become contaminated with pathogenic bacteria in many ways including foot and equipment traffic, incoming materials, and drain backups. Turmeric (Curcuma longa L.) rhizome powder and seventeen other commercially available powdered floor treatments …
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Redistribution of moisture and ions in cement based materials
… to the top screed surface under a semi-permeable flooring, thus elevating the relative humidity, RH, and possibly exceeding the critical humidity level. Passing the critical humidity level may result in material damage to the flooring and adhesive. In order to avoid such damage there is a need of …
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Adoption of Scanning Technology in the Secondary Wood Products Industry
… of wood cabinet, furniture, dimension, and flooring manufacturers was undertaken across the US to assess the market potential for automated lumber grading technology in the secondary wood products industry. Two hundred and nine usable responses were received providing information related to …
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