DOI QR코드

DOI QR Code

Correlation of strength development of RCA in quaternary blended cementitious system

  • Sastri, M.V.S.S. (Department of Civil Engineering, Vasavi College of Engineering (A)) ;
  • Rao, K. Jagannadha (Department of Civil Engineering, Chaitanya Bharathi Institute of Technology (A)) ;
  • Bhikshma, V. (Department of Civil Engineering, University College of Engineering (A), Osmania University)
  • 투고 : 2020.02.14
  • 심사 : 2021.06.29
  • 발행 : 2021.09.25

초록

Recycled concrete aggregate (RCA) obtained from demolished structures can be used for concrete making, and is established as a promising material in the field of construction. In the present study, the effect of RCA on the mechanical properties of different strength concretes admixed with Micro silica, fly ash and nano-silica as a part replacement to cement was considered. The quantity of cement varied from 350-690 kg/m3 with the additions of Fly ash at 0, 20 and 30%, micro silica at 0, 5, 10 and 15%, and Nano silica at 0, 1, 2, 3 and 4%. The samples were cured for 7, 28, 56 and 90 days and tested for Compressive strength. Split tensile and flexural strength evaluation was carried out on samples which have been cured for 28 days. The workability of fresh concrete was determined. With the help of the tested database, equations for prediction of compressive strength using modified Bolomey's equation were generated. Equations for the flexural strength and split tensile strengths based on compressive strength were developed and compared with equations available in the literature.

키워드

과제정보

The experimental study is part of UGC minor research project No: F MRP 6151/15 (SERO/UGC) January 2015. The authors express sincere thanks to the management and Principal of Vasavi College of Engineering, Hyderabad for the support in carrying out the experimental work in the college laboratories. Our special thanks to Dr. B. Sridhar and Dr. G.V. Ramana Murty, for their constant encouragement and help. The help of Undergraduate students during laboratory experimentation is also acknowledged.

참고문헌

  1. ACI 318 (2011), Building Code Requirements for Structural Concrete and Commentary, American Concrete Institute, Farmington Hills, MI, USA.
  2. Ahmed, S.F.U. (2014), "Existence of dividing strength in concrete containing recycled coarse aggregate", J. Mater. Civil Eng., 26(4), 784-788. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000864
  3. Arioglu, N., Girgin, Z.C. and Arioglu, E. (2006), "Evaluation of ratio between splitting tensile strength and compressive strength for concretes up to 120 MPa and its application in strength criterion", ACI Mater. J., 103(1), 18-24. https://doi.org/10.14359/15123
  4. Behnood, A., Verian, K.P. and Gharehveran, M.M. (2015), "Evaluation of the splitting tensile strength in plain and steel fiber-reinforced concrete based on the compressive strength", Constr. Build. Mater., 98, 519-529. https://doi.org/10.1016/j.conbuildmat.2015.08.124
  5. Carrasquillo, R.L., Nilson, A.H. and Slate, F.O. (1981), "Properties of high strength concrete subject to short-term loads", Am. Concrete Inst., 78(3), 171-178. https://doi.org/10.14359/6914
  6. Chandra Paul, S. (2013), "Mechanical behaviour and durability performance of concrete containing RCA", Int. J. Sustain. Constr. Eng. Technol., 4(1), 89-103.
  7. Etxeberria, M., Vazquez, E., Mari, A. and Barra, M. (2007), "Influence of amount of recycled coarse aggregates and production process on properties of recycled aggregate concrete", Cement Concrete Res., 37(5), 735-742. https://doi.org/10.1016/j.cemconres.2007.02.002
  8. Fraay, A.L.A., Bijen, J.M. and De Haan, Y.M. (1989), "The reaction of fly ash in concrete a critical examination", Cement Concrete Res., 19(2), 235-246. https://doi.org/10.1016/0008-8846(89)90088-4
  9. Gholampour, A., Gandomi, A.H. and Ozbakkaloglu, T. (2017), "New formulations for mechanical properties of recycled aggregate concrete using gene expression programming", Constr. Build. Mater., 130, 122-145. https://doi.org/10.1016/j.conbuildmat.2016.10.114
  10. IS:456 (2000), Code of practice for plain and reinforced concrete (fourth revision) reaffirm 2011, Bureau of Indian Standards, New Delhi, India.
  11. IS:516 (1959), Methods of Tests for Strength of Concrete, Bureau of Indian Standards, New Delhi, India.
  12. IS:2386 (1963), (Part IV): Methods of test for aggregates for concrete: Part 4 Mechanical properties, Standards B.o.I., New Delhi, India.
  13. IS:5816 (1970), Method of Test for Splitting Tensile Strength of Concrete Cylinder, Standards B.o.I., New Delhi, India.
  14. IS:12269 (2013), Specification for ordinary Portland cement, 53 grade (first revision), Standards B.o.I., New Delhi, India.
  15. Knaack, A.M. and Kurama, Y.C. (2013), "Design of concrete mixtures with recycled concrete aggregates", ACI Mater. J., 110(5), 483-493. https://doi.org/10.14359/51685899
  16. Mazloom, M., Soltani, A., Karamloo, M., Hassanloo, A. and Ranjbar, A. (2018), "Effects of silica fume, superplasticizer dosage and type of superplasticizer on the properties of normal and self-compacting concrete", Adv. Mater. Res., Int. J., 7(1), 45-72. https://doi.org/10.12989/amr.2018.7.1.045
  17. Ozbakkaloglu, T., Gholampour, A. and Xie, T. (2017), "Mechanical and durability properties of recycled aggregate concrete: effect of recycled aggregate properties and content", J. Mater. Civil Eng., 30(2), 04017275. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002142
  18. Padmini, A.K., Ramamurthy, K. and Mathews, M.S. (2009), "Influence of parent concrete on the properties of recycled aggregate concrete", Constr. Build. Mater., 23(2), 829-836. https://doi.org/10.1016/j.conbuildmat.2008.03.006
  19. Palaskar, S.M. and Vesmawala, G.R. (2020), "Performance of concrete modified with SCBA and GGBFS subjected to elevated temperature", Adv. Mater. Res., Int. J., 9(3), 203-218. https://doi.org/10.12989/amr.2020.9.3.203
  20. Pedro, D., De Brito, J., Evangelista, L. and Bravo, M. (2018), "Technical specification proposal for use of high-performance recycled concrete aggregates in high-performance concrete production", J. Mater. Civil Eng., 30(12), 04018324. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002533
  21. Rao, K.J., Mujeeb, M.A. and Sastri, M.V.S.S. (2014), "Behavior of Ternary Blended Concrete with Fly Ash and Silica Fume", IUP J. Struct. Eng., 7(2).
  22. Rashid, M.A., Mansur, M.A. and Paramasivam, P. (2002), "Correlations between mechanical properties of high-strength concrete", J. Mater. Civil Eng., 14(3), 230-238. https://doi.org/10.1061/(ASCE)0899-1561(2002)14:3(230)
  23. Tam, V.W., Tam, C.M. and Wang, Y. (2007), "Optimization on proportion for recycled aggregate in concrete using two-stage mixing approach", Constr. Build. Mater., 21(10), 1928-1939. https://doi.org/10.1016/j.conbuildmat.2006.05.040
  24. Tangchirapat, W., Buranasing, R., Jaturapitakkul, C. and Chindaprasirt, P. (2008), "Influence of rice husk-bark ash on mechanical properties of concrete containing high amount of recycled aggregates", Constr. Build. Mater., 22(8), 1812-1819. https://doi.org/10.1016/j.conbuildmat.2007.05.004
  25. Topcu, I.B. and Sengel, S. (2004), "Properties of concretes produced with waste concrete aggregate", Cement Concrete Res., 34(8), 1307-1312. https://doi.org/10.1016/j.cemconres.2003.12.019
  26. Xiao, J.Z., Li, J.B. and Zhang, C. (2006), "On relationships between the mechanical properties of recycled aggregate concrete: an overview", Mater. Struct., 39(6), 655-664. https://doi.org/10.1617/s11527-006-9093-0
  27. Yong, P.C. and Teo, D.C.L. (2009), "Utilisation of recycled aggregate as coarse aggregate in concrete", UNIMAS E-J. Civil Eng., 1(1), 1-6.