Response Surface Methodology Modelling to Study the Influence of Recycled Aggregates on Some Mechanical Properties of Recycled Concrete

Document Type : Research Article

Authors

1 Department of Civil and Mechanical Engineering, Khatam Ol Anbia University, Tehran, Iran.

2 Civil Engineering Faculty, Khaje Nasir Toosi University of Technology, Iran

3 , Department of Mechanical Engineering, Khatam Ol Anbia University, Tehran, Iran.

Abstract

Recycling is introduced as one of the most significant approaches in waste management practices. Various studies have concentrated on the influence of recycled concrete aggregate in concrete; however, no specific model has been suggested to predict the behavior of parent concrete. In this paper, response surface methodology coupled with the central composite design was used to design tests and model characteristics of recycled concrete. Effective factors in experimental work included compressive strength (fc) of parent concrete, and substitution rate of parent concrete while compressive strength (fc), tensile strength (ft), and water absorption of recycled concrete were objective responses. Statistical analysis suggested that models were adequate with an acceptable correlation coefficient (above 0.80). Perturbation and response surface plots revealed that fc and ft of recycled concrete heavily depended on the fc of parent concrete. For parent concretes with fc of 19 MPa and 85% substitution rate, the fc and ft values of recycled concrete were 31.6 MPa and 2.89 MPa while these values for parent concrete with fc of 36 MPa and 85% substitution rate were 42.1 and 3.7 MPa. In fact, as the fc of parent concrete enhanced, fc and ft of produced concretes increased. However, in case the fc of parent concretes increased, water absorption of recycled concrete decreased. The lowest water absorption of recycled concrete was 3.2%, which belonged to fc of 36 MPa and 15% substitution whereas the highest water absorption was observed for the parent concrete with fc of 19 and 85% substation rate.

Keywords

Main Subjects


  1. Winkler, Recycling Construction & Demolition Waste: A LEED-Based Toolkit (Green Source), McGraw-Hill, 2010.
  2. Batayneh, I. Marie, I. Asi, Use of selected waste materials in concrete mixes, Waste management, 27(12) (2007) 1870-1876.
  3. Pandurangan, A. Dayanithy, S.O. Prakash, Influence of treatment methods on the bond strength of recycled aggregate concrete, Construction and Building Materials, 120 (2016) 212-221.
  4. Shi, Y. Xu, Estimation and forecasting of concrete debris amount in China, Resources, Conservation and Recycling, 49(2) (2006) 147-158.
  5. Senas, C. Priano, S. Marfil, Influence of recycled aggregates on properties of self-consolidating concretes, Construction and Building Materials, 113 (2016) 498-505.
  6. Laserna, J. Montero, Influence of natural aggregates typology on recycled concrete strength properties, Construction and Building Materials, 115 (2016) 78-86.
  7. B. Huda, M.S. Alam, Mechanical behavior of three generations of 100% repeated recycled coarse aggregate concrete, Construction and building materials, 65 (2014) 574-582.
  8. Mostofinejad, S.M. Hosseini, F. Nosouhian, T. Ozbakkaloglu, B.N. Tehrania, Durability of concrete containing recycled concrete coarse and fine aggregates and milled waste glass in magnesium sulfate environment, Journal of Building Engineering, (2020) 101182.
  9. Nili, N. Biglarijoo, S.M. Hosseinian, S. Ahmadi, Disposing waste demolition in concrete as aggregate replacement, International Journal of Materials, 1 (2014) 105-110.
  10. Biglarijoo, M. Nili, S.M. Hosseinian, M. Razmara, S. Ahmadi, P. Razmara, Modelling and optimization of concrete containing recycled concrete aggregate and waste glass, Magazine of Concrete Research, 69(6) (2017) 306-316.
  11. J. Zega, A.A. Di Maio, Use of recycled fine aggregate in concretes with durable requirements, Waste management, 31(11) (2011) 2336-2340.
  12. C. Bostanci, Use of waste marble dust and recycled glass for sustainable concrete production, Journal of Cleaner Production, 251 (2020) 119785.
  13. Zaharieva, F. Buyle-Bodin, E. Wirquin, Frost resistance of recycled aggregate concrete, Cement and Concrete Research, 34(10) (2004) 1927-1932.
  14. C. Kou, C.S. Poon, M. Etxeberria, Influence of recycled aggregates on long term mechanical properties and pore size distribution of concrete, Cement and Concrete Composites, 33(2) (2011) 286-291.
  15. Mesgari, A. Akbarnezhad, J. Xiao, Recycled geopolymer aggregates as coarse aggregates for Portland cement concrete and geopolymer concrete: Effects on mechanical properties, Construction and Building Materials, 236 (2020) 117571.
  16. Bai, C. Zhu, C. Liu, B. Liu, An evaluation of the recycled aggregate characteristics and the recycled aggregate concrete mechanical properties, Construction and building materials, 240 (2020) 117978.
  17. Ajdukiewicz, A. Kliszczewicz, Influence of recycled aggregates on mechanical properties of HS/HPC, Cement and concrete composites, 24(2) (2002) 269-279.
  18. Padmini, K. Ramamurthy, M. Mathews, Influence of parent concrete on the properties of recycled aggregate concrete, Construction and Building Materials, 23(2) (2009) 829-836.
  19. M. Biglarijoo, S.A.; Ehteshami, M.; Moavenzadeh, S., Optimization of Fenton process using response surface methodology and analytic hierarchy process for landfill leachate treatment, Process Saf. Environ. 104 (2016) 150-160.
  20. Asadi, H. Zilouei, Optimization of organosolv pretreatment of rice straw for enhanced biohydrogen production using Enterobacter aerogenes, Bioresource technology, 227 (2017) 335-344.
  21. Amiri, M.R. Sabour, Multi-response optimization of Fenton process for applicability assessment in landfill leachate treatment, Waste management, 34(12) (2014) 2528-2536.
  22. Oliveira, M.F. Almeida, L. Santos, L.M. Madeira, Experimental design of 2, 4-dichlorophenol oxidation by Fenton's reaction, Industrial & engineering chemistry research, 45(4) (2006) 1266-1276.