Results 201 to 210 of about 550,572 (226)

Synthesis and Properties of Heat-Stable Expanded Smectite and Vermiculite

Clays and Clay Minerals, 1979
AbstractWhen aqueous dispersions of Na+-smectite or n-butylammonium-vermiculite react with sulfate salts of Fe(II), Co(II), or Ni(II) bipyridyl or 1, 10-phenanthroline complexes in excess of the cation-exchange capacities, intersalated phases with spacings of about 29.5 Å are obtained.
R. H. Leoppert, M. M. Mortland, T. J. Pinnavaia   +2 more
openaire   +1 more source

Mineralogical Aspects of Expanded Vermiculite Ores

Glass and Ceramics, 2023
M. Kh. Rumi, E. M. Urazaeva, Sh.R. Nurmatov, Sh.K. Irmatova, Sh.A. Faiziev, E. P. Mansurova, M. A. Zufarov, N. E. Iskandarov   +7 more
openaire   +1 more source

Expanded Vermiculite Applied in the Catalytic Process as a Catalyst Support

Applied Mechanics and Materials, 2014
Amorphous NiB supported on expanded vermiculite (EV) catalyst was prepared as an example to show the superior characteristics of EV as a novel carbon support material. EV and the prepared catalysts were characterized by ICP, SEM, TEM and SAED. The catalytic activity of prepared catalysts was tested by the hydrogenation of sulfolene to sulfalone, with ...
Mei Xia Wu, Yong Sheng Qiao, Jian Peng Shang, Yong Guo   +3 more
openaire   +1 more source

Sound absorption study of raw and expanded particulate vermiculites

Applied Physics A, 2016
Expanded and raw vermiculite minerals were studied for their ability to absorb sound. Phase and structural characterization of the investigated vermiculites was found similar for both types, while morphology and surface properties vary. Sound waves reflect in wedge-like structure and get minimized, and later are absorbed totally.
Martin Vašina, Daniela Plachá, Marcel Mikeska, Lumír Hružík, Gražyna Simha Martynková   +4 more
openaire   +2 more sources

SOME PHYSICAL PROPERTIES OF LIGHTWEIGHT MORTARS WITH EXPANDED VERMICULITE

STEPGRAD XVI (2024)
<p class="ABSTRACT">Expanded vermiculite was added to the cement-lime mortar at 10%, 20% and 30%, which reduced the density of the hardened mortar (HM) without expanded vermiculite (EV) by an average of 8,3% for the HM with 10% EV, 14,7% for the HM with 20% EV and 24,2% for the HM with 30% EV.
Jakob Šušteršič, Violeta Bokan Bosiljkov, Aljoša Šajna, Bojan Hertl, Rok Ercegovič   +4 more
openaire   +1 more source

Developments of the UralNIIstrom Institute in the field of technologies and equipment for enrichment of vermiculite ores and production of expanded vermiculite

Construction Materials
Vermiculite deposits are a heterogeneous array of micaceous minerals of varying degrees of hydration with a significant number of host rocks.The development of technology and equipment for both the enrichment of vermiculite ores and for the swelling of vermiculite and hydrosludes should be carried out taking into account their mineralogical features ...
openaire   +1 more source

Preparation and Properties of Expanded Vermiculite Modified Bitumens

Advanced Materials Research, 2011
Heng Long Zhang, Jian Ying Yu, Zheng Gang Feng   +2 more
openaire   +1 more source

Study on the use of lightweight expanded perlite and vermiculite aggregates in blended cement mortars

European Journal of Environmental and Civil Engineering, 2022
Kim Hung Mo, U Johnson Alengaram, Senthil Kumar Kaliyavaradhan   +2 more
exaly  

Crack self-healing of cement-based materials by microorganisms immobilized in expanded vermiculite

Construction and Building Materials, 2021
exaly  

Influence of expanded vermiculite powder and silica fume on properties of foam concretes

Construction and Building Materials, 2020
Fuat Koksal, Yusa Şahin, Osman Gencel   +2 more
exaly