نتایج جستجو برای: light concrete core
تعداد نتایج: 674566 فیلتر نتایج به سال:
Automobile light weight structural composites are subjected to the various loadings in their service lives. Honeycombs are increasingly used as core structures in automobile light weight structures as energy absorbers. In this paper the energy absorption of honeycomb panels under impact of cylindrical projectile is numerically and experimentally studied. The effect of the core materials and cro...
چکیده ندارد.
To reduce the global emission of CO2 from building industry, researchers, architects and manufacturers must consider new ways constructing precast concrete buildings. Modern columns walls are not optimized to applied load, there is potential save material. By creating a stronger column core lightweight cover, it possible carbon footprint. A method proposed calculate such eccentrically loaded tw...
concentric bracing is one of the most common lateral load resistant systems in building frames, and areapplied to many structures due to their manufacturing simplicity and economics. an important deficiency in thebracing members is their irregular hysteretic loops under cyclic loading. in order to overcome this problem, it isadvised to restrain braces against buckling under compression, since b...
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...
بتن عبور دهنده نور light transmitting concrete (litracon)، نوعی بتن با خاصیت عبور نور از درون خود می باشد و در سال های اخیر نام بتن شفاف را به آن داده اند. این کشف قابل تحسین توسط معمار مجارستانی به بشر معرفی گردید. بتن خودمتراکم (بتن بدون نیاز به ویبره) که برای اولین بار حدود دو دهه قبل در ژاپن ابداع شد، بتن روانی است که منجر به افزایش کیفیت و دوام سازه ها می شود. این نوع بتن با روانی خود، بخو...
The essential oil extracted by n-Hexane solvent extraction and hydro-distillation of Arabian jasmine flowers collected from Pothohar region was analyzed by GC/MS. Concrete oil recovery on fresh petal weight basis was 1.78 g (0.17%) and absolute oil recovery from this concrete was 0.09%. Essential oil recovery in hydro-distillation was 0.08 g (0.008%). The colour of absolute oil was very light b...
In this text we expose and defend the following claim: “Ludics is a relevant framework to ensure both the formalisation and another way for studying dialogues”. Once our model presenting a not formal notion of dialogue, and explaining the correspondance with some core concepts in Ludics has been introduced, we give a light technical presentation of Ludics, focusing on the most relevant points f...
Concrete strength evaluated from compression tests on cores is affected by several factors causing differences from the in-situ strength at the location from which the core specimen was extracted. Among the factors, there is the damage possibly occurring during the drilling phase that generally leads to underestimate the actual in-situ strength. In order to quantify this effect, in this study t...
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