Comparision between Mechanical Properties of M30 Grade Self Compacting Concrete For Conventional Water Immersion and Few Non Water based Curing Techniques
Pamnani Nanak J.1, Verma A.K.2, Bhatt Darshana R.3
1Prof. Nanak J. Pamnani, B.E. Civil Structural Engineering, from SICART, Sardar Patel University, Gujarat, India
2Prof. A. K. Verma,  He is Head of  Department of Structural Engineering , Birla Vishvakarma Mahavidyalaya, Vallabh Vidyanagar, Gujarat, India.
3Dr. Darshana R. Bhatt,  Associate Professor, Department of Structural Engineering, with Birla Vishvakarma Mahavidyalaya, Vallabh Vidyanagar, Gujarat, India.
Manuscript received on November 27, 2013. | Revised Manuscript received on December 13, 2013. | Manuscript published on December 30, 2013. | PP: 265-272 | Volume-3, Issue-2, December 2013. | Retrieval Number:  B2471123213/2013©BEIESP

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Abstract: Self-Compacting Concrete (SCC) is highly workable concrete with high strength and high performance that can flow under its own weight through restricted sections without segregation and bleeding. SCC is achieved by reducing the volume ratio of aggregate to cementitious materials, increasing the paste volume and using various viscosity enhancing admixtures and superplasticizers. It is observed that the behaviour of the design concrete mix is significantly affected by variation in humidity and temperature both in fresh and hardened state. In this paper effect of three non-water-based curing techniques on mechanical properties such as compressive strength, split tensile strength, flexural strength and shear strength of M30 grade self-compacting concrete (SCC) is discussed. For compressive strength it is observed that immersion method for curing gives maximum compressive strength while the lowest compressive strength is for no curing. Polyethylene film curing gives second highest strength at 28 days. Similarly for split tensile strength, flexural strength & shear strength, the maximum strength is also with immersion method of curing. For split tensile strength curing compound gives almost at par with immersion method while no curing has least strength. Polyethylene film curing gives good results for flexural strength. For shear strength Polyethylene film gives about 82% of immersion strength. It is concluded that although pond immersion method is best for curing, Polyethylene film and curing compound can deliver more than 90% compressive and other strengths compared to immersion method.
Keywords: Self compacting concrete, Immersion curing, Polyethylene film wrap, Curing compound, Curing period, Compressive strength, split tensile strength, flexural strength, shear strength.