Characteristics of Grade 60 and Grade 72.5 Re-bars in Pakistan
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2013, Vol 3, Issue 2
Abstract
Abstract: In Pakistan, quality assurance of re-bars is practically non-existent and there is no generally accepted testing method for testing of re-bars. Steel re-bars of Grade 60 are exclusively used in Pakistan; however production of high strength re-bars has recently started. In this study, thirty samples of steel re-bars of Grade 60 and thirty samples of Grade 72.5 were tested using ASTM standard testing protocol to obtain the stress-strain curves and comparisons were made between the experimental results of Grade 60 and Grade 72.5 re-bars. It can be concluded that Grade 72.5 steel shows less deformation capacity as compared to Grade 60 steel. For Grade 60 re-bars, the yield strengths of all individual re-bars were much higher than the prescribed minimum yield strength, i.e. 60 ksi. For the Grade 72.5 re- bars, about 50 % of the re-bars did not reach the prescribed minimum yield strength of 72.5 ksi.The experimental curves were then compared with an idealized stress-strain curve developed by using a fractional equation. It is recommended that instead of producing Grade 72.5 ksi reinforcing bars, the traditional ASTM Grade 75 reinforcing bars be produced.
Authors and Affiliations
Shahida Manzoor
Keywords
Related Articles
- EP ID EP120193
- DOI -
- Views 102
- Downloads 0
Reduction of Topology Control Using Cooperative Communications in Manets
A mobile ad hoc network (MANET) is a self-configuring infrastructure less network of mobile devices connected by wireless. Most of presented works on mutual communications are focused on link-level physical layer...
Receiver Module of Smart power monitoring and metering distribution system using Domestic power line data transfer
In the current situation all the communication is very much important and faster range but the usage of the power should be less in order to reduce the power and the usage of the sources we are going for this data...
Reversible Data Hiding VIA Optimal Code for Image
Digital watermarking often referred to as data hiding for assuring the information. Data hiding in image processing may occur the permanent distortion and hence the original cover medium may not be able to be r...
Real-Time Implementation of Multi-Channel Audio Crosstalk Cancellation Using Mixed Single Frequency Delay Line Filtering Algorithm
Abstract : To reproduce high fidelity audio sound and spatial reverberation characteristics, it is desired to use the long filter coefficients in audio surround systems. To implement these long filters, the existin...
Results from set-operations on Fuzzy soft sets
In this paper considering a class of Fuzzy-Soft Sets, seven set operations are defined and several relations arising from these set-operations are established using matrix representation of fuzzy soft sets.