The major element composition, including two kinds of clay minerals and moisture content of sound-producing sand are reported for the first time. Sand from 33 beaches in Japan has been found to make sound. Ten sound-producing beaches were selected to compare with silent beach sand. Both sound-producing sand and silent beach sand are mostly composed of quartz and feldspar. The range of SiO2 cont...

Traditional terramechanics theorems utilise pressure-sinkage models based on the assumption that the contact area between a tyre and soil can be approximated as a flat plate. Examples include work by Bekker, Reece, and Ishigami. Recently, the authors have demonstrated that 1) this approximation does not hold for wheels with a diameter less than approximately 50 cm and 2) an improved diameter-de...

" A supplement of 1% to 4% clay or 4% salt mixture caused an increase in body weight and prevented the pathologic changes. " " Findings indicated that the various clays differed significantly in growth-promoting activity (Table 4). The most active material tested was clay sample A (ION-MIN from CEM); whereas, clay sample J, kaolin, and hydrobiotite were virtually devoid of growth-promoting acti...

recently, mixtures of clay-tire chips are used as construction material in civil engineering projects. with respect to the tending for using these materials, it is necessary to know their mechanical behavior. thereby, a number of undrained monotonic triaxial tests are carried out on the specimens of pure clay and clay-tire chip mixtures. mixed specimens prepared by mixing pure clay with 10%, 20...

BACKGROUND Patents have been granted for a number of techniques for petroleum biodegradation including use of micro-organisms for degradation of hydrocarbon-based substances and for hydrocarbon degradation in oil reservoirs, but there is a dearth of information on hydrocarbon degradation in different soil textures. OBJECTIVE Hence, this work investigated the effects of different soil textures...

Formulation of traditional hard porcelain generally requires 50% kaolin, 25% silica and feldspar. Four porcelains formulation using the casting method, were prepared with different percentages kaolinitic clay, sand pegmatite referenced respectively NONG, SAB PEG. The physico-chemical, mechanical mineralogical characteristics evaluated on specimens formulated sintered at temperatures from 1200?C...

Laboratory soil column experiments were conducted to study the distribution of preferential flow paths resulting from removal of fine-size clay particles. These experiments specifically studied the influence of clay (kaolinite) percentage in sand-clay mixtures and the effect of hydraulic gradients on pore evolution. Analysis of the effluent during the experiments indicated that clay particles w...

A series of one-dimensional cyclic loading tests are carried out on three different proportions Sydney sand – kaolin mixtures, at various initial degrees saturation. The settlement the samples throughout is accurately monitored. effects degree saturation and frequency load evolution during thoroughly investigated for each mixture. patterns compared to those saturated highlight effect soil sucti...

The desirable physical and physiochemical properties of clay minerals have led them to play a substantial role in pharmaceutical formulations. Clay minerals like kaolin, smectite and palygorskite-sepiolite are among the world's most valuable industrial minerals and of considerable importance. The elemental features of clay minerals which caused them to be used in pharmaceutical formulations are...