نتایج جستجو برای: polypropylene fiber

تعداد نتایج: 137387  

Journal: :Advances in transdisciplinary engineering 2022

Adding fiber into soil-cement can improve its compressive and tensile strength. In engineering application, meet the requirements of mechanical properties economic cost by adding a certain proportion fiber, which has great significance for ensuring quality, reducing increasing efficiency. order to reflect strength characteristics mixed with performance constrained lateral deformation, unconfine...

Hybrid fiber reinforced concrete (HFRC) consisting of two or more different types of fibers has been widely investigated because of its superior mechanical properties. In the present study, the effect of the addition of steel (0.25%, 0.5%, 0.75%, and 1% of concrete volume) and Polypropylene (0.2%, 0.4%, and 0.6% of concrete volume) fibers on the surface scaling resistance of concrete, depth of ...

2013
Rajkishore Nayak Rajiv Padhye Ilias Louis Kyratzis Yen Bach Truong Lyndon Arnold

The feasibility of fabricating polypropylene (PP) nanofibers has been explored by using different additives, such as sodium oleate (SO), poly(ethylene glycol) (PEG) and poly(dimethyl siloxane) (PDMS), during melt electrospinning. PP of high melt flow index (1000) was used with PEG and PDMS for the reduction of the melt viscosity; and it was used with SO for improving the electrical conductivity...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1389

abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...

Journal: :Jordan Journal of Civil Engineering 2023

One of the main risks in low-densified sandy soils with presence water and an external force such as earthquake is generation liquefaction. The influence several types reinforcement on liquefaction resistance, polypropylene fibers, geofibers, cement fibers shown this study. Cyclic stress-controlled triaxial tests cyclic strain-controlled were performed saturated samples without reinforcements u...

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