Authors:
Adeed Khan,Mazhar Ali Shah,Mohammad Adil,Muhammad Zeeshan Ahad,Muhammad Tehseen Khan,Numan Ali Shah,DOI NO:
https://doi.org/10.26782/jmcms.2020.09.00027Keywords:
Microstructure,Geopolymer,Normal cement,SEM,XRF,Abstract
Microstructure studies in concrete are unique techniques for understanding the morphological features of concrete. In this research work, four mixture of concrete has been prepared by replacement of normal cement with geopolymer in 0 %, 50%, 80% and 100% of different ratio with recycled aggregates. Both class of fly ash F and C has been used with an alkaline activator (NaOH and Na2SiO3).In each mixture, the alkaline liquid, sodium hydroxide (Noah), and sodium silicate were dependent on the amount of fly ash, while the ratio of NaOH to Na2SiO3 is maintained 2.5 for all concrete. After costing twelve cylinders 150mm x 300 mm and twelve 152.4 mm x 152.4 mm x 609.6 mm concrete beams were cured for 28 days ata normal temperature of 27°C water. The physical and chemical properties have beeninvestigated in this research. The SEM and XRF analysis of all samples has been compared with the controlled sample. Which all samples have been compared with a controlled sample, to identify the changing of compressive and flexural strength in each sample.Refference:
I. A.S, Adithya & Palanisamy, Magudeaswaran. (2017). SEM Analysis of Sustainable High-Performance Concrete. 6. 10.15680/IJIRSET.2017.0606016.
II. Chopra, Divya & Siddique, Rafat & , Kunal. (2015). Strength, permeability, and microstructure of self-compacting concrete containing rice husk ash. Biosystems Engineering. 130. 72-80. 10.1016/j.biosystemseng.2014.12.005.
III. Chan, W.W.J & Wu, C.M.L. (2000). The durability of concrete with high cement replacement. Cement and Concrete Research. 30. 865-879. 10.1016/S0008-8846(00)00253-2.
IV. Jowhar Hayat, Saqib Shah, Faisal Hayat Khan, Mehr E Munir, Study on Utilization of Different Lightweight Materials Used in the Manufacturingof Lightweight Concrete Bricks/Blocks, J. Mech. Cont.& Math. Sci.,Vol.-14, No.2, March-April (2019), pp 58-71
V. Li, Hui & Xiao, Hui-gang & Yuan, Jie & Ou, Jinping. (2004). The microstructure of Cement Mortar with Nano-Particles. Composites Part B: Engineering. 35. 185-189. 10.1016/S1359-8368(03)00052-0.
VI. Meyer, C. (2009). The Greening of the Concrete Industry. Cement & Concrete Composites – CEMENT CONCRETE COMPOSITES. 31. 601-605. 10.1016/j.cemconcomp.2008.12.010.
VII. P. Duxson, J. L. Provis, G. C. Lukey, and J. S. J. Van Deventer, Cement and Concrete Research,37 (2007) 1590-1597
VIII. Patankar, Subhash &Jamkar, Sanjay & Ghugal, Yuwaraj. (2013). Effect of Water-to-Geopolymer Binder Ratio on the Production of Fly ash Based Geopolymer Concrete. Journal. 2. 10.13140/2.1.4792.1284.
IX. Shi XS, Collins FG, Zhao XL, Wang QY. Mechanical properties and microstructure analysis of fly ash geopolymeric recycled concrete. J Hazard Mater. 2012; 237-238:20-29. doi:10.1016/j.jhazmat.2012.07.070.
X. Singh, Malkit& Siddique, Rafat. (2014). Compressive strength, drying shrinkage, and chemical resistance of concrete incorporating coal bottom ash as a partial or total replacement of sand. Construction and Building Materials. 68. 39–48. 10.1016/j.conbuildmat.2014.06.034.
XI. Sudhakar M., HeeralalMudavath, G. Kalyan KumaR, MECHANICAL STRENGTH AND STIFFNESS BEHAVIOUR OF CLASS F-POND ASH, J. Mech. Cont.& Math. Sci.,Vol.-14, No.-6, November – December (2019), pp 264-282
XII. Vaitkevičius, Vitoldas & Šerelis, Evaldas & Hilbig, Harald. (2014). The effect of glass powder on the microstructure of ultra-high performance concrete. Construction and Building Materials. 68. 102–109. 10.1016/j.conbuildmat.2014.05.101.
XIII. Van Gemert, Dionys. “Synergies between Polymers and Cement Concrete Providing Opportunities for Sustainable Construction.” Advanced Materials Research, vol. 687, Trans Tech Publications, Ltd., Apr. 2013, pp. 12–20. Crossref, doi:10.4028/www.scientific.net/amr.687.12.
XIV. https://doi.org/10.1016/j.conbuildmat.2013.12.051
View Download