نتایج جستجو برای: fiber reinforced composite post

تعداد نتایج: 669455  

Journal: :journal of the structural engineering and geotechnics 0
iman mehdipour construction materials institute, department of civil engineering, university of tehran, tehran, iran nicolas ali libre department of civil engineering, islamic azad university, qazvin branch, barajin st, qazvin, iran mohammad shekarchia construction materials institute, department of civil engineering, university of tehran, tehran, iran

the sustainability of the built environment is increasingly coming to the forefront of infrastructure design and maintenance decisions. to address this, development of a new class of more sustainable cement-based materials is needed. fiber reinforced self-consolidating mortar (frscm) was developed by optimizing the micromechanical parameters, which control composite properties in the hardened s...

2011
R. Mosharraf Z. Hashemi S. Torkan

OBJECTIVE Reinforcement with fiber is an effective method for considerable improvement in flexural properties of indirect composite resin restorations. The aim of this in-vitro study was to compare the transverse strength of composite resin bars reinforced with pre-impregnated and non-impregnated fibers. MATERIALS AND METHODS Thirty six bar type composite resin specimens (3×2×25 mm) were cons...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
a. zarbakhsh dept. of prosthodontics, dental branch, islamic azad university of medical sciences, tehran, iran. e. jalalian dept. of prosthodontics, dental branch, islamic azad university of medical sciences, tehran, iran. a. mazaheri tehrani dept. of prosthodontics, dental branch, islamic azad university of medical sciences, tehran, iran. m. norozy dept. of operative dentistry, school of dentistry, kerman university of medical sciences, kerman, iran p. fatourechi

objective: despite the advantages of esthetic posts, lack of studies on their fracture resistance has limited their clinical use. this study aimed to compare the effect of two types of esthetic posts namely zirconia and zirconia enriched glass fiber composite posts on fracture resistance of endodontically treated teeth against compressive forces.   methods: this in vitro study was conducted on ...

Introduction: In orthodontic treatment, adequate anchorage is necessary to move the intended teeth. In some cases, just anterior teeth are malaligned, while posterior occlusion is acceptable. Therefore, the posterior teeth could be integrated by fiber-reinforced composite (FRC) to provide a rigid anchorage. This method proved advantageous since brackets are bonded just to anter...

Journal: :Dental materials journal 2006
Takahito Kanie Hiroyuki Arikawa Koichi Fujii Seiji Ban

The aim of this investigation was to measure the flexural and compressive strengths and the corresponding moduli of cylindrical composite specimens reinforced with woven glass fiber. Test specimens were made by light-curing urethane dimethacrylate oligomer with woven glass fiber of 0.18-mm standard thickness. Tests were conducted using four reinforcement methods and two specimen diameters. Flex...

Journal: :The journal of contemporary dental practice 2016
Parth Satwalekar Tanushree Satwalekar Vasanthi Bondugula B Bhuvaneshwari K V Harshavardhan Kiran Pasula

AIM To make use of fiber-reinforced composite and the patient's own extracted teeth in fabricating a provisional restoration following immediate implant placement. BACKGROUND Fiber-reinforced composites offer various possibilities in temporization of osseointegrating implants in the esthetic zone. TECHNIQUE In this chairside technique, the patient's own extracted teeth with fiber-reinforced...

2002
C. E. Bakis E. Cosenza J. F. Davalos J. J. Lesko A. Machida S. H. Rizkalla T. C. Triantafillou

A concise state-of-the-art survey of fiber-reinforced polymer ~also known as fiber-reinforced plastic! composites for construction applications in civil engineering is presented. The paper is organized into separate sections on structural shapes, bridge decks, internal reinforcements, externally bonded reinforcements, and standards and codes. Each section includes a historical review, the curre...

M. Zohouri and A. Khorrami, S. M. R. Khalili,

Due to the widespread applications of fiber reinforced polymer composites in various industries, the machining of these materials to reach the desired shapes, close tolerances and surface finish quality is of great importance. But the composite materials are anisotropic and are mostly prepared in laminated form and, therefore, they have special chip formation behaviour. Among the effective para...

2016
Changyong Li Xinxin Ding Shunbo Zhao Xiaoyan Zhang Xiaoke Li

Abstract: A new reinforced SFRFLC (abbr. steel fiber reinforced full-lightweight concrete) superposed beam was proposed to sufficiently utilize the good peculiarities of ordinary concrete in compression and SFRFLC in tension, and reduce its self-weight. Experimental study was carried out on the flexural behaviors of reinforced SFRFLC superposed beams compared with reinforced concrete beams and ...

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