W/C REDUCTION FOR FLEXURAL STRENGTHENING OF R.C BEAMS HAVING PLASTIC AGGREGATE

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  • Akhtar Gul Civil Engineering Department, UET Peshawar, Satellite Campus-Bannu 28100, Pakistan
  • Saad Tayyab Civil Engineering Department, UET Peshawar, Satellite Campus-Bannu 28100, Pakistan
  • Asad Ullah Civil Engineering Department, UET Peshawar, Satellite Campus-Bannu 28100, Pakistan
  • Kamal Shan Civil Engineering Department, UET Peshawar, Satellite Campus-Bannu 28100, Pakistan
  • Faisal Mehmood Civil Engineering Department, UET Peshawar, Satellite Campus-Bannu 28100, Pakistan
  • Fazal Haq Civil Engineering Department, UET Peshawar, Satellite Campus-Bannu 28100, Pakistan

DOI:

https://doi.org/10.14311/CEJ.2019.02.0021

Klíčová slova:

Plastic Aggregate (PA), Flexural Strength (FS), Compressive Strength (CS), Water Cement Ratio (W/C), Superplasticizer (SP)

Abstrakt

Due to the greater availability and low biodegradability plastic waste became a great concern for the researchers worldwide, because this waste is one of the main environmental issues. Nowadays harmful industrial waste can be helpful in place of conventional aggregate in concrete mix, which in turn will also save natural resources. A similar effort has been made in this research study for making concrete having replaced percentage of plastic aggregate along with plasticizer and reduced water cement ratio. Total of fifty-seven concrete cylinders and six beams were cast, and after curing period, these were tested for compression and flexural strength respectively. Compression strength decreases by increasing the percentages of plastic aggregates while reducing the w/c, the compression strength increases. The strength of beams in flexure increases by 57% through reduction of W/C from 0.68 (normal concrete/fc’=3000psi) to 0.3, and with further replacement of 40% plastic aggregate the increase in strength as compared to the normal concrete was still 3%.

Stažení

Data o stažení nejsou doposud dostupná.

Biografie autora

Saad Tayyab, Civil Engineering Department, UET Peshawar, Satellite Campus-Bannu 28100, Pakistan

Due to the greater availability and low biodegradability plastic waste became a great concern for the researchers worldwide, because this waste is one of the main environmental issues. Nowadays harmful industrial waste can be helpful in place of conventional aggregate in concrete mix, which in turn will also save natural resources. A similar effort has been made in this research study for making concrete having replaced percentage of plastic aggregate along with plasticizer and reduced water cement ratio. Total of fifty-seven concrete cylinders and six beams were cast, and after curing period, these were tested for compression and flexural strength respectively. Compression strength decreases by increasing the percentages of plastic aggregates while reducing the w/c, the compression strength increases. The strength of beams in flexure increases by 57% through reduction of W/C from 0.68 (normal concrete/fc’=3000psi) to 0.3, and with further replacement of 40% plastic aggregate the increase in strength as compared to the normal concrete was still 3%.

Reference

Girija, B.G., Sailaja, R.R.N. and Madras, G., 2005. Thermal degradation and mechanical properties of PET blends. Polymer Degradation and stability, 90(1), pp.147-153.

Siddique, R., Khatib, J. and Kaur, I., 2008. Use of recycled plastic in concrete: A review. Waste management, 28(10), pp.1835-1852.

Batayneh, M., Marie, I. and Asi, I., 2007. Use of selected waste materials in concrete mixes. Waste management, 27(12), pp.1870-1876.

Kou, S.C., Lee, G., Poon, C.S. and Lai, W.L., 2009. Properties of lightweight aggregate concrete prepared with PVC granules derived from scraped PVC pipes. Waste Management, 29(2), pp.621-628.

Saikia, N. and De Brito, J., 2012. Use of plastic waste as aggregate in cement mortar and concrete preparation: A review. Construction and Building Materials, 34, pp.385-401. [6] Sharma, R. and Bansal, P.P., 2016. Use of different forms of waste plastic in concrete–a review. Journal of Cleaner Production, 112, pp.473-482. [7] Colangelo, F., Cioffi, R., Liguori, B. and Iucolano, F., 2016. Recycled polyolefins waste as aggregates for lightweight concrete. Composites Part B: Engineering, 106, pp.234-241. [8] Gu, L. and Ozbakkaloglu, T., 2016. Use of recycled plastics in concrete: A critical review. Waste Management, 51, pp.19-42.

Choi, Y.W., Moon, D.J., Chung, J.S. and Cho, S.K., 2005. Effects of waste PET bottles aggregate on the properties of concrete. Cement and concrete research, 35(4), pp.776-781.

Batayneh, M., Marie, I. and Asi, I., 2007. Use of selected waste materials in concrete mixes. Waste management, 27(12), pp.1870-1876.

Pezzi, L., De Luca, P.A., Vuono, D., Chiappetta, F. and Nastro, A., 2006. Concrete products with waste's plastic material (bottle, glass, plate). In Materials Science Forum (Vol. 514, p. 1753). Trans Tech Publications.

Marthong, C., 2015. Effects of PET fiber arrangement and dimensions on mechanical properties of concrete. The IES Journal Part A: Civil & Structural Engineering, 8(2), pp.111-120.

Ismail, Z.Z. and Al-Hashmi, E.A., 2010, June. Validation of using mixed iron and plastic wastes in concrete. In Second International Conference on Sustainable Construction Materials and Technologies. Ancona (pp. 393-403).

Arduini, M. and Nanni, A., 1997. Parametric study of beams with externally bonded FRP reinforcement. ACI Structural Journal, 94(5), pp.493-501.

Byung-Wan, J.O., Park, S.K. and Cheol-Hwan, K.I.M., 2006. Mechanical properties of polyester polymer concrete using recycled polyethylene terephthalate. ACI structural journal, 103(2), p.219.

Saikia, N. and De Brito, J., 2012. Use of plastic waste as aggregate in cement mortar and concrete preparation: A review. Construction and Building Materials, 34, pp.385-401.

Aitcin, P.C., 1992. The use of superplasticizers in high performance concrete. High performance concrete–from material to structure, pp.14-33.

Stahování

Publikováno

2019-07-31

Jak citovat

Gul, A., Tayyab, S., Ullah, A., Shan, K., Mehmood, F., & Haq, F. (2019). W/C REDUCTION FOR FLEXURAL STRENGTHENING OF R.C BEAMS HAVING PLASTIC AGGREGATE. Stavební Obzor - Civil Engineering Journal, 28(2). https://doi.org/10.14311/CEJ.2019.02.0021

Číslo

Vol 28 No 2 (2019)

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Articles

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