Results 171 to 180 of about 3,596 (208)
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Lightweight Mortars Based on Expanded Perlite
Key Engineering Materials, 2018Lightweight mortars composed from a lime-metakaolin binder or lime-cement binder and expanded perlite filler were prepared and tested. Mortar test samples were firstly cured in a humid atmosphere and subsequently in laboratory ambient conditions. Development of hardening processes was studied by X-ray diffraction and thermal analysis.
Vladimír Pavlík, Juraj Bisaha
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Preparation and Utilization of Fine Expanded Perlite
Key Engineering Materials, 2007Hollow glass microspheres named expanded perlite have been prepared from perlite, but the size is usually above 20 µm. In the conventional preparation method, it is difficult to produce fine expanded perlite with particle size under 20 µm because the water contained in finely milled perlite particle, which is the origin of foaming, is evolved during ...
Kenichi Sodeyama, Yoshio Sakka
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Journal of Applied Polymer Science
ABSTRACTImproving the mechanical and thermal performance of polypropylene (PP) composites is essential to meet the demanding requirements of contemporary automotive, construction, and electrical‐engineering applications. To address this, PP matrix composites were developed using natural and environmentally friendly fillers such as speech, perlite ...
Ayşenur Yeşilyurt, Naci Uysal
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ABSTRACTImproving the mechanical and thermal performance of polypropylene (PP) composites is essential to meet the demanding requirements of contemporary automotive, construction, and electrical‐engineering applications. To address this, PP matrix composites were developed using natural and environmentally friendly fillers such as speech, perlite ...
Ayşenur Yeşilyurt, Naci Uysal
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Development of Expanded Perlite Board for Thermal Insulation
Chiang Mai Journal of Science, 2022In this study, the perlite-based insulating material is developed to meet ASTM C610 standards in a form of the board. Expanded perlite powders with a tapped density of 53 and 150 kg/m³ were used in this study. Sodium silicate used as a proper binder at various concentrations was mixed with perlite powders.
Nittaya Keawprak +5 more
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Solar Energy, 2014 In this study, a form-stable expanded perlite/paraffin (EP/PA) composite was prepared by absorbing paraffin into porous networks of expanded perlite.
Zeyu Lu, Biwan Xu, Jinrui Zhang
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Application of Qualitatively Improved Expanded Perlite (Review)
Glass and Ceramics, 2021A comparative analysis of the physicotechnical properties of existing and proposed perlite heat-insulation products, agricultural components, and acoustic fillings, demonstrating significant improvement in the quality of the latter, is presented. In this connection, a selective method is proposed for developing perlite deposits in thin extraction ...
N. V. Gurgenyan +4 more
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Numerical simulation of bubble growth in expanding perlite
Journal of Materials Science, 2001Aiming to improve the comprehension of the expansion process of perlite, a numerical study has been carried out, concerning the water vapour bubble growth in softened perlite melt. The physical properties of the melt and temperature history during the expansion process are varied, in order to determine the most influencing parameters. Calculated bubble
K. Zähringer, J.-P. Martin, J.-P. Petit
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Research on Homogeneity of Expanded Perlite Lightweight Concrete
Key Engineering Materials, 2014This paper discusses the reason of segregation of expanded perlite lightweight aggregate concrete. By adding fly ash, high effective admixture, the expanded perlite pre-wetting and so on,the expanded perlite lightweight concrete,CL5-CL10,was confect with good workability, homogeneity, no bleeding and segregation, easy casting and excavation.
Ping Yang +4 more
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Microwave Drying of Expanded Perlite Insulation Board
Industrial & Engineering Chemistry Research, 2012The microwave drying process intensification of new inorganic thermal insulation board, containing expanded perlite and inorganic binder, was investigated in a multimode microwave applicator, with a 1.8 kW, 2.45 GHz microwave source. Ability to generate heat inside moistened material and to avoid the problem of heat conduction to the core of the ...
Blaz Skubic, Mitja Lakner, Igor Plazl
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Study of oil sorption by expanded perlite at 298.15K
Separation and Purification Technology, 2006Sorption capacity as well as sorption kinetics of oil onto four different expanded perlites with different physical and surface properties were studied. In order to meticulously measure the amount of oil to be sorbed onto the adsorbents used in this study both static and dynamic methods were employed.
D. Bastani +3 more
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