Workability and compressive strength properties of normal weight concrete using high dosage of fly ash as cement replacement
- 11 Downloads
This study evaluates the workability and compressive strength properties of normal weight concrete (NWC) using high dosage of fly ash cement replacement. The goal is to find the suitable mix proportion of G40 NWC and to study the slump-loss at different interval time with fly ash replacement up to 60%. The strength properties of NWC were investigated using rebound hammer test as non-destructive and compressive strength test for verifying it. The acceptable mix proportion for fly ash replacement was then investigated using laboratory experiments. For strength properties of NWC, the samples were tested for 3, 7, 14 and 28 days. Results indicate that the inclusion of fly ash as partial cement replacement improves the workability of NWC concrete. The slump-loss of NWC with fly ash increases and it delays the setting time of fresh concrete. The strength of concrete reduces with an increment of fly ash. The strength measured using non-destructive test is lower when compared to compressive strength test. The results demonstrate that the replacement of cement with fly ash in concrete is beneficial and the targeted strength of concrete will achieve with time.
KeywordsSlump-loss Non-destructive strength test Fly ash Compressive strength test
The research was conducted at Department of Civil Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Sarawak, Malaysia.
This study was not funded.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 1.Balakrishna MN, Nataraja MC (2013) Proportioning of fly ash concrete mixes a comprehensive approach. Int J Emerg Sci Eng (IJESE) 1(8):46–51Google Scholar
- 2.Subramani T, Ramesh KS (2015) Cement with fly ash and complete replacement of sand With M sand. Int J Appl Innov Eng Manag (IJAIEM) 4(5):313–322Google Scholar
- 3.Sarath CKB, Saha P (2011) Contribution of fly ash to the properties of mortar and concrete. Int J Earth Sci Eng 4:1017–1023Google Scholar
- 4.Abubakar AU, Baharudin KS (2012) Potential use of malaysian thermal power plants. Int J Sustain Constr Eng Technol 3(2):25–37Google Scholar
- 5.Wankhede PR, Fulari VA (2014) Effect of fly ash on properties of concrete. Int J Emerg Technol Adv Eng 4(7):284–289Google Scholar
- 6.Hussein EAA, Shafiq N, Nuruddin MF (2013) A comprehensive experimental study on the performance of fly ash concrete. Int J Eng Adv Technol (IJEAT) 2(6):135–142Google Scholar
- 7.Barough AS, Shoubi MV, Kiani I, Amini Z (2010) Advantages of using fly ash in concrete industry for achieving sustainable development. In: Paper presented at the management in construction research association (MICRA) post graduate conference. UTM, MalaysiaGoogle Scholar
- 8.Iaea IAEA (2002) Guidebook on non-destructive testing of concrete structures. Train Course Ser 17(17):231Google Scholar