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Gopi, P.
- Partial Replacement of Fine Aggregates with Quarry Dust in Concrete Pavements
Abstract Views :148 |
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Authors
Affiliations
1 Department of Civil Engineering, MVR College of Engineering & Technology, Vijayawada-520001, IN
2 Department of Civil Engineering, PVP Siddartha Institute of Technology, Vijayawada-520007, IN
1 Department of Civil Engineering, MVR College of Engineering & Technology, Vijayawada-520001, IN
2 Department of Civil Engineering, PVP Siddartha Institute of Technology, Vijayawada-520007, IN
Source
International Journal of Engineering Research, Vol 5, No 12 (2016), Pagination: 919-921Abstract
The study aims to determine the strength properties of concrete by replacing sand with quarry dust for M30 grade with 20%, 25% and 30% replacement. It is observed that for 20% of quarry dust (3 days, 7 days, 28 days) the average compressive strength is 22.58N/mm2, 25.02N/mm2, 36.66N/mm2 where as for natural sand it is 20.56 N/mm2, 23.15N/mm2, 35.45N/mm2 respectively. For 25% quarry dust (28 days) the strength increased to 36.82N/mm2, for 30% it is 37.76N/mm2 instead of 35.45N/mm2 for sand. The properties of quarry dust are as good as fine aggregates in replacement with sand in the cement concrete.Keywords
Alternate Building Materials, Concrete, Quarry Dust, Aggregates.Full Text
- Analysis of a Primary Suspension Spring Used in Locomotives
Abstract Views :155 |
PDF Views:0
Authors
Affiliations
1 Dept. of Mechanical Engineering, S.V.U. College of Engineering, Tirupati-517502, IN
1 Dept. of Mechanical Engineering, S.V.U. College of Engineering, Tirupati-517502, IN
Source
International Journal of Engineering Research, Vol 5, No 9 (2016), Pagination: 749-752Abstract
A spring is an elastic object which is used to store mechanical energy. It can be twisted, pulled or stretched by applying force and returns to its original shape upon release of force. In practice, the spring tends to buckling under the compressive load. Thus, the guiding components are usually used to constrain the buckling deflection, and the spring can continue to work in the normal situation. In these states, the deflection of the spring satisfies the small deformation assumption. This work is helpful in figuring out the behavior of post-buckling of the compressed helical spring. A typical locomotive suspension spring configuration is chosen for this study. This work is mainly concentrated on modeling and analysis of primary suspension spring (20NiCrMo2) and comparing with the earlier conventional steel helical spring(Chrome Vanadium). The objective of this research is to reduce the overall stresses and deflections of the helical spring by using the new material. The buckling analyses of the locomotive suspension spring are performed using ANSYS 14.0 and compared with analytical results. The spring model is done by using Pro/E Wildfire 4.0.Keywords
Locomotives, Primary Suspension System, Helical Spring, Modeling, Static Analysis, Ansys 14.0, Pro E-4.Full Text