It is demonstrated that the addition of organo-modified Na-bentonite (OMB) particles to Portland cement mortar can promote its physical and mechanical properties. A series of experimental works on some important physico-mechanical properties of Portland cement mortars mixed with various dosages of hydrophobic OMB were performed. The obtained results confirm that the OMB provides a dense packing...

The results of numerical calculation the continuum mechanics equation for continuous medium plastic flow and analytical models studying thermophysics at friction stir welding are given.

Background and Objectives: Microbial activity is the main factor in spoiling food products, which not only changes their texture and taste but also causes economic damage and poisoning. The present study aimed to assess the effects of essential oil of Bane (Pistacia atlantica) on physico-mechanical and antimicrobial properties of gelatin- carboxymethyl cellulose film. Materials and Methods: ...

The aim of this work is to improve the high performance mud bricks. latter was reinforced with rice straws as stabiliser leading an improvement physico-mechanical properties. Thus, physical characteristics clay such natural water content, density, atterberg limit, plasticity limit (Wp) and index (Ip) were determined. Their values are respectively 8.39%, 2025.73 Kg/m3, 47.66%, 29.75% 17.91%. use...

Calcium hydroxide (CH) represents a significant volume of the products formed from the cement-water reaction. The extent to which the CH phase contributes to the engineering integrity and volume stability of cement-based binders is however moot. Evidence in support of the view that calcium hydroxide has a significant role in determining the mechanical performance and volume stability of cementi...

this article addresses the interplay between heat of hydration and physico-mechanical properties of calcium sulfate hemi-hydrate in the presence of retarding additives such as citric and malic acids and sodium citrate. the heat of hydration was measured using a semi-isothermal calorimeter. results proved that citric and malic acids had superior impact on hydration and mechanical properties. whi...

This work is devoted to identifying the patterns of influence vulcanization accelerator N-cyclohexyl-benzothiazyl-sulfenamide (CBS) on technological, physico-mechanical, and thermo-physical properties vulcanizates based styrene-butadiene rubber. It was found that a decrease in content decreases maximum torque, noticeably longer time required for optimum absence CBS. The thermal conductivity inc...