نتایج جستجو برای: fine grained concrete

تعداد نتایج: 193366  

Journal: :مهندسی عمران فردوسی 0

compressibility characteristics of fine-grained soils are often the most important parameters for settlement evaluation of the founded layers. the compression index which is the slope of virgin curve is usually for determination of settlement potential of fine grained soils. in this research, the effects of different physical and index properties of soil samples were investigated on compression...

Journal: :Herald of Dagestan State Technical University. Technical Sciences 2015

ژورنال: علوم آب و خاک 2015
بهفرنیا, کیاچهر, جواهری طهرانی, محسن, عابدی کوپایی, جهانگیر,

In recent years, due to the overpopulation, serious water shortages, and need to consume more water, the use of wastewater treatment plant has attracted lots of attention. When the pollution load is not high, biofilm reactors are commonly used for the purpose. In this study, the porous concrete as a bed biofilm in reducing pollution load of wastewater was investigated. In order to evaluate poro...

Journal: :international journal of transportation engineering 0
saleh sharif tehrani assistant professor, kharazmi university seyed hossein hosseini lavasani assistant professor, kharazmi university

this paper is based on an experimental research that examined the effects of concrete`s major parameters on durability of concrete pavements and curbs under freezing and thawing cycles. these parameters include concrete mix design parameters such as water-cement ratio, fine aggregate percentage and using air entraining admixture and simulating real freeze-thaw cycles that infrastructures underg...

Journal: :Applied sciences 2021

Concrete produced from electric arc furnace steel slag aggregates is one of the items that highly regarded due to its strength, environmental friendliness and cost-effectiveness. Despite growing interest in using this type concrete, there are still doubts about mix proportions addition effects slags. In paper, performance replacing natural by slags aggregate comprehensively investigated effect ...

2012
Martina Balg Jens Lang Arnd Meyer Gudula Rünger

For many applications of scientific computing, reduction operations may cause a performance bottleneck. In this article, the performance of different coarseand fine-grained methods for implementing the reduction is investigated. Fine-grained reductions using atomic operations or fine-grained explicit locks are compared to the coarse-grained reduction operations supplied by OpenMP and MPI. The r...

Journal: :فیزیک زمین و فضا 0
ابوالقاسم کامکار روحانی دانشیار، دانشکده معدن، نفت و ژئوفیزیک، دانشگاه صنعتی شاهرود، شاهرود، ایران اسماعیل اسحقی دانش آموخته ژئوفیزیک، دانشکده معدن، نفت و ژئوفیزیک، دانشگاه صنعتی شاهرود، شاهرود، ایران علیرضا عرب امیری استادیار، دانشکده معدن، نفت و ژئوفیزیک، دانشگاه صنعتی شاهرود، شاهرود، ایران

ground penetrating radar (gpr) method as a high resolution non-destructive geophysical method is used for detection of shallow subsurface targets. this method is based on the transmission of electromagnetic waves inside the earth and recording the reflected waves from the subsurface. as the method uses high-frequency electromagnetic waves in the frequency ranges of 12.5 to 2500 mhz (called gpr ...

Dependency parsing is a way of syntactic parsing and a natural language that automatically analyzes the dependency structure of sentences, and the input for each sentence creates a dependency graph. Part-Of-Speech (POS) tagging is a prerequisite for dependency parsing. Generally, dependency parsers do the POS tagging task along with dependency parsing in a pipeline mode. Unfortunately, in pipel...

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