نتایج جستجو برای: split tensile strength

تعداد نتایج: 268303  

Journal: :international journal of environmental research 2014
a. arshad i. shahid u.h.c. anwar m.n. baig s. khan

the marble slurry wastes (msw) produced by marble industry is left unattended in theenvironment which causes serious environmental problems. in order to evaluate its potential usage in normal1:2:4 concrete, this study was designed, where the partial replacement of cement with msw was examined.replacement of cement with msw from 0 to 100%, and also its usage as an additive material 10% and 20% b...

2013
SP Singh

Research reported in this paper was carried to study the water permeability of steel fibre reinforced concrete (SFRC) with varied aspect ratios of steel fibres. Corrugated steel fibres were used in the investigation at constant fibre content of 0.5%. Relationship of water permeability with compressive strength and split tensile strengths has been presented. The water permeability was observed t...

Journal: :Journal of international oral health : JIOH 2013
Deepa Shori Swapnil Pandey Rajesh Kubde Yogesh Rathod Rahul Atara Shravan Rathi

BACKGROUND Fiber posts are widely used for restoration of mutilated teeth that lack adequate coronal tooth structure to retain a core for definitive restoration, bond between the fiber post and composite material depends upon the chemical reaction between the post surface and the resin material used for building up the core. In attempt to maximize the resin bonding with fiber post, different po...

2015
A Anbarasan M Venkatesan

Silica fume (SF) and Metakaolin are cementitious materials used as admixtures to produce high strength concrete and to reduce the permeability. Also, Silica fume is used to make durable concrete structures in combination with ordinary Portland cement. In places where insufficient or poor curing concrete structures like sea shores, underground structures which undergo severe loss of compressive ...

2012
M. E. Rahman V. Pakrashi

The predictability of masonry arch bridges and their behaviour is widely considered doubtful due to the lack of knowledge about the conditions of a given masonry arch bridge. The assessment methods for masonry arch bridges are MEXE, ARCHIE, RING and Frame Analysis Method. The material properties of the masonry and fill material are extremely difficult to determine accurately. Consequently, it i...

2014
Huai-shuai Shang Wei-qun Cao Bin Wang

Freezing-thawing resistance is a very significant characteristic for concrete in severe environment (such as cold region with the lowest temperature below 0°C). In this study, ordinary-air-entrained (O-A-E) concrete was produced in a laboratory environment; the compressive strength, cubic compressive strength of C50, C40, C30, C25, and C20 ordinary-air-entrained concrete, tensile strength, and ...

2005
A. Ghaffar M. A. Chaudhry Kamran Ali

Tensile strength is one of the important strength parameters of concrete. Indirect methods have been used up till now for its measurement. These methods though widely accepted, do not furnish the true tensile strength of concrete. This paper presents a new approach for the experimental determination of true tensile strength of concrete. Results obtained by this test are quite encouraging and sh...

The tensile strength of rocks plays a noteworthy role in their failure mechanism, and its determination can be beneficial in optimizing the design of the rock structures. Schistose rocks due to their inherent anisotropy in different foliation directions show a diverse strength at each direction. The purpose of this work was to compare and assess the tensile strength of phyllite, which was obtai...

Journal: :محیط زیست طبیعی 0
احسان عبدی استادیار گروه جنگلداری و اقتصاد جنگل، دانشکده منابع طبیعی، دانشگاه تهران، ایران باریس مجنونیان استاد گروه جنگلداری و اقتصاد جنگل، دانشکده منابع طبیعی، دانشگاه تهران حسن رحیمی استاد گروه آبیاری، دانشکده مهندسی آب و خاک، دانشگاه تهران محمود زبیری استاد گروه جنگلداری و اقتصاد جنگل، دانشکده منابع طبیعی، دانشگاه تهران قاسم حبیبی بی بالانی دانشیار دانشگاه آزاد اسلامی واحد شبستر

effects of plant roots on increasing soil shear strength depend on root tensile strength. thus, determination of root tensile strength can provide the necessary data for analyzing root-soil relations. tensile strength of plant roots varied in a wide range and have been reported from thousands to millions of mpa. the main objective of this study was to assess inter-species variations of root ten...

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