نتایج جستجو برای: concrete abrasion
تعداد نتایج: 80095 فیلتر نتایج به سال:
BACKGROUND In a cross sectional study of 88 indoor and outdoor English pig farms, the prevalence of foot and limb lesions in 2843 preweaning piglets aged 1-4 weeks from 304 litters was recorded. The environmental risks for the prevalence of lesions and population attributable fractions were calculated. The risks for lesions in piglets were compared with those for limb and body lesions in their ...
Abrasion-resistant materials have attracted great attention for their broad applications in industry, biomedicine and military. However, the development of abrasion-resistant materials that have with unique features such as being lightweight and flexible remains a great challenge in order to satisfy unmet demands. The outstanding performance of natural abrasion-resistant materials motivates the...
The purpose of this study was to Analyze the characteristics theaggregates used in concrete mixtures and analyze how muchincrease compressive strength with a variation ofnickel slag substitution 0%, 5%, 15%, 25% compared normalconcrete. material examined are watercontent, sludge content, specific gravity absorption, volumeweight, abrasion los angeles machines, filter analysis.While large increa...
This work proposes a green material for artificial reefs to be placed in Galicia (northwest Spain) taking into account the principles of circular economy and sustainability ecosystem. New concrete formulations marine applications, based on cement and/or sand replacement by mussel shells, are analyzed terms resistance abrasion. The interest lies importance canning industry Galicia, which generat...
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
BACKGROUND Excessive shoe heel abrasion is of concern to patients and shoe manufacturers, but little scientific information is available about this feature and its possible causes. The purpose of this study was to relate this phenomenon with biomechanical factors that could predispose to shoe heel abrasion. METHODS Ninety-seven recruits (median age 25) were enrolled in this study. Shoe abrasi...
Waste management in the world has come to fore recent years. Like many materials used as alternative raw materials, glass waste become an increasingly important situation. It is very terms of sustainability that these wastes are production new for various industries. Recycling glass, which produced and consumed a wide range, contributes different sectors. For this purpose, use obtained two form...
The current study aims at exploring the beneficial effect of silica fume (SF) and acrylic emulsion polymer (PR) on enhanced properties polypropylene fiber reinforced concrete (FRC) with supplementary cementitious binder comprised Portland cement, slag, fly ash. compressive strength impact-abrasion resistance were used for estimation engineering while water absorption performance, surface electr...
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