PRESENTED BY:
ISHATPREET KAUR


MECHANICAL PROPERTIES OF CONCRETE INCORPORATING USED
FOUNDRY SAND
ABSTRACT
Metal foundries use large amounts of the metal casting process. Foundries successfully
recycle and reuse the sand many times in a foundry and the remaining sand that is termed
as foundry sand is removed from foundry. This study presents the information about the
civil engineering applications of foundry sand, which is technically sound and is
environmentally safe. Use of foundry sand in various ....etc

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Ceramic Ball Bearing Performance Tests



A New Ball Bearing

INTRODUCTION:
Want to save a *million barrels of petroleum a day by simply changing to a more
efficient ball bearing in machinery? Sounds too good to be true, but it’s possible with
new materials available today.
Tribology – The science of friction and wear.
If we look at the surface finish of a metal ball or race very closely, peaks and valleys
appear over these surfaces. I ....etc

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Abstract
This paper focuses on the experimental investigation carried out on high strength concrete reinforced with hybrid fibres (combination
of hooked steel and a non-metallic fibre) up to a volume fraction of 0.5%. The mechanical properties, namely, compressive strength, split
tensile strength, flexural strength and flexural toughness were studied for concrete prepared using different hybrid fibre combinations –
steel–polypropylene, steel–polyester and steel–glass. The flexural properties were studied using four point ben ....etc

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Mac Eteli Happiness is my name. I desire to have a full report on the above topic. I am a final year undergraduate student of Civil engineering and i consider the above topic more than interesting. Thanks. ....etc

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NDT TESTS ON CONCRETE

Rebound Tests
The rebound hammer is a surface hardness tester for which an empirical
correlation has been established between strength and rebound number.
The only known instrument to make use of the rebound principle for
concrete testing is the Schmidt hammer, which weighs about 4 lb (1.8 kg)
and is suitable for both laboratory and field work. It consists of a springcontrolled
hammer mass that slides on a plunger within a tubular housing.
The hammer is forced against the surface of the concrete by ....etc

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ENGINEERING PROPERTIES OF STRUCTURAL
LIGHTWEIGHT CONCRETE



INTRODUCTION

Structural lightweight aggregate concrete is an important and versatile material in modern
construction. It has many and varied applications including multistory building frames and
floors, bridges, offshore oil platforms, and prestressed or precast elements of all types. Many
architects, engineers, and contractors recognize the inherent economies and advantages
offered by this material, as evidenced by the many impressive lightwei ....etc

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....etc

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please send me replies as soon as possible and suggest me whether to take this as my project or not to make my project more effective.
thank you. ....etc

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what happen to the strength of the concrete if natural sand is replaced by manufactured sand (crusher dust) in concrete? ....etc

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Abstract
According to the relevant IEC standards vacuumcircuit-breakers have to meet various needs, e.g. theinterruption capability, making operations, and dielectricstrength. Switching of capacitor banks, overhead lines, orcables leads to very small currents in comparison withshort-circuit currents. After current interruption thecircuit-breaker must withstand twice the peak value of thesystem voltage. Furthermore, restrikes can lead to voltagemultiplication. The conjunction of relatively smallbreaking currents with high voltage stress ....etc

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