Open Access
T Bhavani chowdary,
AV Rao,
- Assistant Professor VNR Vignana Jyothi Institute of Engineering and Technology, Department of Civil, Hyderabad Telangana India
- Professor Koneru Lakshmaiah Education Foundation, Department of Civil Engineering, Guntur ANDHRA PRADESH India
Abstract
It has been known for decades that geopolymer will significantly replace cement’s function in construction industry. Geopolymer has low creep and shrinkage and a peak compressive strength. That is as per a recent study, geopolymer mortar is made by Fly ash and GGBS. The composition includes (100-60%) GGBS with a 10% substitution of fly ash. Alkali activators used in the research are sodium hydroxide (NaOH) and sodium silicate (Na2SiO3). In the investigation, Na2Sio3 is employed in two different molarities of 4 and 8. The utilised ratios of sodium hydroxide (NaOH) to sodium silicate (Na2SiO3) were 1.5, 2, 2.5, and 3. Investigation and research are done for mortars. Alkali activators’ effects on the molarities of their setting times and characteristics. The 28-day compressive strength varied from 60 to 85 MPa, suggesting that high-calcium fly ash should be used to produce early, high-strength geopolymer concrete. The results revealed that the variables being studied significantly influenced the properties of the geopolymer mortars produced. Increasing either the NaOH concentration or the Na2SiO3/NaOH ratio led to a decrease in workability and setting time
Keywords: Alkaline activator, Workability, Compressive Strength, Molarities, and Geopolymer.
References
- Supriya Kulkarni(2018),” Study on Geopolymer Concrete”, International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 05 Issue: 12 Dec 2018.
- Glukhovsky (1959),soil silicates .Kiev Gosstroyizdat
- Hardjito et al. (2004), ‘Factors Influencing Fly Ash Based Geopolymer Concrete’, civil engineering domain vol 6 no 2 88-93,sep 2004 ISSN 1410-9530
- Hardjito et al. (2008),”Strength and Setting Times of Low Calcium Fly Ash Based Geopolymer Concrete”, Modern Applied Sciences Vol 2 No4 July 2008.
- D. Padhye, N. S. Deo, “Cement Replacement by Fly Ash in Concrete”, International Journal of Engineering Research, Volume No.5, Issue Special 1, ISSN:2319-6890, January 2016, pp : 60-62.
- Jamdade P.K, Kawade U.R, (2014), Evaluate Strength of Geopolymer Concrete by Using OvenCuring, IOSR Journal of Mechanical and Civil Engineering. 11, 63-66.
- Ali A. Aliabdo, AbdElmoaty M, AbdElmoaty, Hazem A. Salem, (2016) Effect of cement addition, solutionresting time and curing characteristics on fly ash based geopolymer concrete performance, Journal of Construction and Building Materials, 123, 581-593.
- DjwantoroHardjito, Chua Chung Cheak, Carrie Ho Lee Ing (2008) Strength and Setting Times of Low Calcium Fly Ash-based Geopolymer Mortar, Modern applied science,2, 3-11.
- Rashida A Jhumarwala, Rao P.S, Patel T.N (2013) Experimental Investigation on Self Compacting Geopolymer Concrete (SCGC), Paripex – Indian Journal of Research, 3, 173-175.
- Sashidhar C, Guru Jawahar J, Neelima C, Pavan Kumar D (2015) Fresh and Strength Properties of SelfCompacting Geopolymer Concrete Using Manufactured Sand, International Journal of ChemTech Research,8, 183-190.
- Usha T G, Anuradha R, Venkatasubramani G S (2015) Performance of self different mineral admixtures, Indian journal of engineering and material sciences, 22, 473-481.
12.Shankar H. Sanni, Khadiranaikar R.B (2013) Performance of alkaline solutions on grades of geopolymerconcrete, International Journal of Research in Engineering and Technology, 366-371.
Journal of Polymer and Composites
| Volume | |
| Received | February 9, 2024 |
| Accepted | April 6, 2024 |
| Published | May 15, 2024 |