In order to reduce cement consumption, which is one of the significant factors in man-made carbon dioxide emissions, studies are being conducted on issues such as alternative building materials. Replacing with fly ash at forefront reduction studies. However, use a high sulfate content structural elements limited by European and American standards. Here production pumice stones used wall materia...

Abstract Following rapid decompression in the conduit of a volcano, magma breaks into ash- to block-sized fragments, powering explosive sub-Plinian and Plinian eruptions that may generate destructive pyroclastic falls flows. It is thus crucial assess how up fragments. This task difficult, however, because subterranean nature entire process original size pristine fragments modified by secondary ...

One of the most important problems encountered in cultivation cut flower gladiolus is soil-borne diseases and pests. This problem substantially reduces yield quality. Soilless culture very limited for it has not been studied extensively. The characteristics growing media used soilless either directly or indirectly affect Therefore, quite essential to determine appropriate cultivation. At same t...

Damavand is a large dormant stratovolcano in the Alborz Mountains of northern Iran located in one of the most populous provinces, which could be adversely affected by tephra fall from Damavand. The youngest known eruption is a lava flow on the western flanks with an age of 7.3 ka. The volcanic products are predominantly porphyritic trachyandesite. Three major young pumice deposits, named here a...

Introduction: Dentin hypersensitivity (DH) is defined as pain caused by dentin exposure in response to various stimuli. Patients with periodontal disease (PD) frequently report DH due root surface or after treatment. Bioactive agents derived from calcium and/or silicon-based systems, such REFIX technology, have been used promote tooth regeneration, focus on sensitivity Case Report: Based this, ...

This study attempted to fill epoxy, a widely used industrial material, with pumice, cheap volcanic rock, in order form composite material. The objective was evaluate the worth of pumice and improve mechanical properties epoxy. Composite samples no filler, 10%, 20%, or 30% filler were produced. An ultrasonic mixer during manufacture made sure powder dispersed properly, vacuuming stopped air pock...

Abstract In this study, pumice from different regions of Turkey (Diyarbakir, Southeast and Bitlis, East Turkey) has been supplied used as supporting material for nanoscale zero-valent iron (nFe 0 ). Native Bitlis (NBP)-supported (BP-nFe ) native Diyarbakir (NDP)-supported zero-value (DP-nFe were synthesized under the same conditions. (NDP, NBP) pumice-supported nFe BP-nFe adsorbents morphologic...