• Corpus ID: 19007951

Comparative Study of RCC and Prestressed Concrete Flat Slabs

@inproceedings{Rahman2013ComparativeSO,
  title={Comparative Study of RCC and Prestressed Concrete Flat Slabs},
  author={Vakas K. Rahman and Ashok R. Mundhada},
  year={2013}
}

• Vakas K. Rahman, A. R. Mundhada
• Published 2013
• Engineering, Materials Science

This paper presents the comparison of R.C.C. and Prestressed Concrete Flat Slab. This work includes the design and estimates for R.C.C. and Prestressed Concrete flat slabs of various spans. The aim of this work is to design R.C.C. as well as prestressed concrete flat slabs for various spans and then compare the results. Programming in MS EXCEL is done to design both types of flat slabs. The idea is to reach a definite conclusion regarding the superiority of the two techniques over one another. Results reveal that a R.C.C. flat slab is cheaper than pre-stressed concrete flat slab for smaller spans but vice versa is true for larger spans. Index Terms: Flat Slab, Prestressed Concrete, R.C.C., Column Strip, Middle Strip, Strand. I. Introduction 1.1 Importance & Necessity Without any semblance of doubt, reinforced cement concrete construction has been the most revolutionary construction technique of modern times. Combining the high compressive strength of concrete with high tensile strength and elasticity of steel has resulted in a composite material that is strong, durable and economical. Moreover, it is time tested. One of the greatest assets of "homo-sapiens" is the quest for excellence. The human being has constantly refused to sit over his laurels and become complacent. This has often resulted in new invention and improved products and techniques. Very week tensile strength of concrete lead to discovery of R.C.C. Bulkiness of R.C.C resulted in the invention of shells. The problem of serviceability associated with the R.C.C. structures sent the human mind working over-time. The solution was found in prestressing. Like ordinary reinforced concrete, prestressed concrete consists of concrete resisting compression and reinforcement carrying tension. Prestressing became essential in many applications in order to fully utilize the compressive strength of reinforced concrete and to eliminate or control cracking and deflection. The aim of this work is to design Flat Slab of R.C.C. as well as prestressed concrete variety and then compare the results. The idea is to reach a definite conclusion regarding the Superiority of the two techniques over each other. 1.2 Scope This work includes the design and estimate for Flat Slabs of various spans, ranging from 6.0 M to 12.0 M, by R.C.C. and Prestressed Concrete techniques. For smaller spans, associated with normal building works, prestressed concrete construction becomes too cumbersome, irrespective of the economics involved. Intensity of assumed loading is kept sufficient enough, so that the factored bending moment will be comparable to that developing in cases of commercial buildings. Post-tensioning is preferred as it is in vogue, in construction of large span slabs.