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Keyword: density

Total Papers Found: 74

Influence of the volume fraction and the nature of fine lightweight aggregates on the thermal and mechanical properties of structural concrete

Author(s): , , ,

The thermal and mechanical properties of concrete in which normal weight aggregate has been substituted with lightweight aggregates were investigated. The properties were found to be dependent on the volume ...

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Effect of a micro-copolymer addition on the thermal conductivity of fly ash mortars

Author(s): , , ,

A Portland cement-based composite was made using a copolymer as one of the ingredients, and the potential of the composite for the production of non-structural masonry systems was evaluated. It ...

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Production, cellular structure and thermalconductivity of microcellular (methylmethacrylate)–(butyl acrylate)–(methylmethacrylate) triblock copolymers

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Microcellular (methylmethacrylate)-(butyl acrylate)-(Methylmethacrylate) triblock copolymer foams were prepared by a foaming process using CO2. CO2 was first dissolved into sheets of the polymer, and then the ...

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Cleaner production of the lightweight insulating composites: Microstructure, pore network and thermal conductivity

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A porous matrix was prepared using low-density sawdust and a metakaolin-based geopolymer paste. The matrix was prepared in order to evaluate its performance as a thermally insulating building envelope. The ...

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Synthesis and characterization of silica aerogel and its composite materials

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Composite silica aerogels were prepared using sodium silicate and ceramics fibers. The thermal conductivities of these composites were investigated to determine how effective they would be as thermal insulation. As ...

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Enhanced Thermal Conductivity and Expedited Freezing of Nanoparticle Suspensions Utilized as Novel Phase Change Materials

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Nanoparticle suspensions were prepared in two PCMs to determine the effect of the addition of nanoparticles on thermal conductivity and expediting freezing. The base PCMs used were cyclohexane and eicosane, ...

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Incorporation of Phase Change Materials in Cementitious Systems via Fine Lightweight Aggregate

Author(s): ,

The incorporation of phase change materials (PCMs) into concrete bridge decks shows promise as a method of decreasing freeze/thaw cycling in bridge decks. The authors have conducted a study ...

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Development of thermal insulating and sound absorbing agro-sourced materials from auto linked flax-tows

Author(s): , , , , ,

A rigid, self-supporting material derived from flax tow was prepared and its mechanical, thermal, hydrous, and acoustic properties were investigated. The study was performed to determine if this material would ...

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Frictional heat from faulting of the 1999 Chi-Chi, Taiwan earthquake

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The frictional heat produced by the 1999 Chi-Chi, Taiwan earthquake was estimated by identifying a temperature anomaly that is present in a borehole drilled through a large slip region of the ...

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