IJEP 41(6): 627-634 : Vol. 41 Issue. 6 (June 2021)
C. K. Gupta*, Shreekant Birgonda, A. K. Sachan and Pooja
Motilal Nehru National Institute of Technology, Department of Civil Engineering, Prayagraj – 211 004, India
Self-compacting concrete (SCC) is the concrete that can be easily placed and compacted due to its own weight and does not need any external compacting effort. This type of concrete is cohesive enough so that it is easy to handle without segregation and bleeding of concrete. Generally, after completing the useful life, the structures are demolished. This demolition waste can be converted into coarse and fine aggregate, which may find use in SCC also. In recent years, many researchers have tried to replace the natural coarse aggregate with waste material in concrete. The use of recycled coarse aggregate is commercially sustainable and technically good for the environment. The construction and demolition wastage are putting an adverse effect on the environment so the use of this waste shows the effective utilization of resources. For sustainable construction, C and D wastage are the main and important resources. The environmental problem due to C and D waste are landfills, illegal deposit, etc. Therefore, the reuse of C and D waste, such as recycled aggregate is the solution to these problems. Recycles concrete aggregate is obtained after crushing and screening old demolition waste. In mortar and concrete, sand is used as fine aggregate. For fine aggregate river sand is mostly preferred. When weathering of rock takes place over a period of million-year natural sand is formed. This sand is obtained from river beds and sand mining which are calamitous environmental concerns. Nowadays river sand is very difficult to get. Manufactured sand (M- sand) is that sand, which is obtained from crushed rock to required grain size distribution. For the required grain size of coarse aggregate, the rocks are crushed in special rock crushers and the crushed material is washed by clean water to remove fines.
Construction and demolition, Manufactured sand, Recycle concrete aggregate
- Roz-Ud-Din, N. and S. Parviz. 2012. Strength and durability of recycled aggregate concrete containing milled glass as partial replacement for cement. Construction Building Mater., 29: 368-377.
- Hansen, T. C. and H. Narud. 1993. Strength of recycled concrete made from crushed concrete coarse aggregate. Concrete Int., 5(1): 79-83.
- Bouzoubaâ, N. and M. Lachemi. 2001. Self-compacting concrete incorporating high volumes of class F fly ash. Cement Concrete Res., 31(3): 413-420. DOI: 10.1016/s0008-8846(00)00504-4.
- Nan, S., H. Kung-Chung and C. His-Wen. 2001. A simple mix design method for self-compacting concrete. Cement Concrete Res., 31: 1799-1807.
- Tavakoli, M. and P. Soroushian. 1996. Drying shrinkage behaviour of recycled aggregate concrete. Concrete Int., 18(Compendex): 58-61.
- Mehta, P. K. 2002. Greening of concrete industry for sustainable development. Concrete Int., 23(8).
- Shi-Cong, K. and P. Chi-Sun. 2013. Long term mechanical and durability properties of recycled aggregate concrete prepared with the incorporation of fly ash. Cement Concrete Composites. 37: 12-19.
- Salem, R. M., E. G. Burdette and N. M. Jackson. 2003. Resistance to freezing and thawing of recycled aggregate concrete. ACI Mater. J., 100(3): 216-230.
- Okamura, H. and M. Ouchi. 1998. Self-compacting high performance concrete. Progress Structural Eng. Mater., 1(4): 378-383. DOI: 10.1002/pse.226 0010406.
- Padmini, A. K., K. Ramamurthy and M. S. Mathews. 2009. Influence of parent concrete on the properties of recycled aggregate concrete. Construction Building Mater., 23: 829-836.
- Matias, D., et al. 2013. Mechanical properties of concrete produced with recycled coarse aggregates – Influence of the use of super plasticizers. Construction Building Mater., 44: 101-109.
- Khayat, K. H., J. Assaad and J. Daczko. 2004. Comparison of field-oriented test methods to assess dynamic stability of self-comparison of field-oriented test methods to assess dynamic stability of self-consolidating concrete. ACI Mater. J., 168-176.
- Al-Amoudi, O. S. B., et al. 1994. Influence of chloride ions on sulphate deterioration in plain and blended cements. Magazine Concrete Res., 46 (167): 113-123.
- Rattapon, S., J. Chai and M. M. Made. 2012. Effect of ground fly ash and ground bagasse ash on the durability of recycled aggregate concrete. Cement Concrete Composites. 34: 848-854.
- Wai, H. K., et al. 2012. Influence of the amount of recycled coarse aggregate in concrete design and durability properties. Construction Building Mater., 26: 565-573.
- Valeria, C. and M. Giacomo. 2009. Influence of mineral additions on the performance of 100% recycled aggregate concrete. Construction Building Mater., 23: 2869-2876.
- Limbachiya, M. C., T. Leelawat and R. K. Dhir. 2000. Use of recycled concrete aggregate in high-strength concrete. Mater. Structures. 33: 574-580.
- Poon, C. S., Z. H. Shui and L. Lam. 2004. Effect of microstructure of ITZ on compressive strength of concrete prepared with recycled aggregates. Construction Building Mater., 18(6): 461-468.
- Ravindrajah, R. S. and T. C. Tam. 1985. Properties of concrete made with crushed concrete as coarse aggregate. Mater. Concrete Res., 37(130): 29-38.
- Buck, A. D. 1997. Recycled concrete as a source of aggregate. J. American Concrete Institute. 74 (5): 212-219.
- Katz, A. 2003. Properties of concrete made with recycled aggregate from partially hydrated old concrete. Cement Concrete Res., 33(5): 703-711.
- IS 8112. 1989. Indian standard code of practice for specification for 43 grade ordinary Portland cement. Bureau of Indian Standards, New Delhi.
- IS 383. 1970. Indian standard code of practice for specification for coarse and fine aggregates from natural sources for concrete (reaffirmed 2002). Bureau of Indian Standards, New Delhi.
- IS 2386. 1963. Indian standard code of practice for method of test for aggregates for concrete. Bureau of Indian Standards, New Delhi.
- ASTM C642. 1994. Standard test method for specific gravity, absorption and voids in hardened concrete. American Society of Testing and Materials (ASTM).
- EFNARC. 2002. Specification and guidelines for self-compacting concrete. Available at: www.efn arc.org/pdf/SandGforSCC.pdf.