The ceramic materials industry has vast potential for use of waste from industrial processes, such as iron mining tailings. aim this study was to test technological tailings samples the dam rupture Samarco S.A. Company in 2015 produce structural ceramics. Sedimentation and flotation processes were used improve their characteristics, analyzing chemical mineralogical composition granulometry. We ...

The aim of this study is to investigate the static and dynamic behaviour multilayer materials manufactured from granular recycled rubber applied technical flooring. studied samples were by varying their thickness, density granulometry, as these are parameters that determine performance rubbery materials. Two mechanical tests, dynamic, carried out under controlled conditions evaluate means its m...

This study was conducted from November 2018 to October 2019 in 8 forested streams the Haut-Nyong and Mvilla watersheds determine influence of substrates granulometry on benthic macroinvertebrates. The physicochemical analyses showed highly oxygenated, weakly mineralized slightly acidic waters. granulometric reveal 9 categories depending scale sand, sand+gravel or sand+mud. Sampling macroinverte...

For a controlled particle size distribution, nano-silica was added to three different cements. The chemical and mineralogical compositions of the cements were characterized by fluorescence X-ray diffraction. granulometric distributions nano-silicas obtained laser granulometry dynamic lightning scattering. specific surface area raw materials determined gas adsorption. effect type cement on rheol...

Abstract With exquisite design and unique style, the painted sculptures of Tutang Buddha two attendants in Jingyin Temple are precious cultural heritages China. The sculpture Buddha, which was carved from a mound by ancient craftsmen, rarely found However, due to natural human factors, were severely damaged. Obviously, they require urgent appropriate protection restoration. In this study, sampl...

A simple and low-cost experimental procedure to compare the mixing transport of two substances in water is presented this paper, aiming investigate if rhodamine can predict fate coal water. The based on acoustic Doppler techniques characterize flow imaging measure discharged from an instantaneous point source near free surface. To validate procedure, several tests are carried out for subsamples...

The present study the influence of dust, wind and rain on performance a photovoltaic was evaluated. To determine efficiency panels influenced by external factors, system designed installed, voltage, electric current, solar irradiance temperatures were measured. Three types dust used to simulate atmospheric dust; cement, ashlar clay. Parameter considered for deposition powders surface density (g...

Factors that influence the explosiveness of wood dust, like particle size distribution, moisture content and microscopic structure, have been characterised. Sawdust flammability has tested in a Hartmann tube. The Minimum Explosive Concentration Ignition Temperature dust clouds layers also measured. Dust granulometry linked to regularity its structure are essential parameters generate or not an ...