نتایج جستجو برای: zero slump
تعداد نتایج: 150196 فیلتر نتایج به سال:
The slump test is a physical examination procedure used for evaluating patients with spinal and lower extremity complaints. The test seeks to rule out or identifY tension in the neuromeningeal tract. The performance of the test places traction on the neuromeningeal tract from head to foot. Traction on non-neurological tissues also occurs during testing. To localize pathology to specific regions...
In this research the effects of adding silica and alumina nanoparticles on flow ability and compressive strength of cementitious composites based on Portland cement were investigated. In the first stage, the rheological behavior of different samples containing nanosilica, nanoalumina and polypropylene, polyvinyl alcohol and polyethylene fibers were evaluated. With increasing of nanoparticles in...
Contemporary optical fibers can deal with almost all of the unfavorable effects which are known these days. They have sufficiently low specific slump, they can handle a slump caused by OHions, they can restrain the multimode effect and finally they can compensate a chromatic dispersion. But there is one problem, which the present science can’t solve and this problem is the Polarization Mode Dis...
مقدمه یکی از علل شایع درد کمر فتق دیسک کمر می باشد. برای تشخیص فتق دیسک کمر تست های گوناگونی از جمله slump و slr وجود دارد که از آن ها برای تشخیص فشار بر روی ریشه عصب استفاده می شود. برای معاینه فیزیکی فرد در تست slump بیمار در حالت نشسته قفسه سینه ، کمر و گردن خود را خم می کند سپس یک زانو را صاف می کند و کف پا را به عقب خم می کند. در تست slr معاینه کننده در حالی که زانوی بیمار صاف است مفصل ر...
Development of Self-Consolidating Concrete for Bridge Girders and Evaluation of Its Fresh Properties
Self-consolidating concrete (SCC) has been developed for use in precast prestressed concrete bridge girders in the state of Minnesota. Locally available materials were used with a number of cementitious and filler materials, including ASTM Type III cement, Class C fly ash, and blast furnace slag. SCC was successfully proportioned with both natural river gravels and crushed stone as coarse aggre...
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