MAT JOURNALS
Published April 10, 2019 | Version v1
Journal article Open

Effect of Increasing the Molarity Concentration and Curing Time on Strength and Durability of Geopolymer Mortar

Creators

  • 1. Assistant Professor (Senior Grade), Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, Tamil Nadu, India
  • 2. Associate Professor, Department of Civil Engineering, Thiagarajar College of Engineering, Madurai, Tamil Nadu, India

Description

This paper presents the effect of increasing the molarity concentrations and curing time for strength and durability of flyash based geopolymer mortars activated using combined sodium silicate and sodium hydroxide solutions. Keeping NaOH concentration as 8M, 10M and curing time as 24hrs, 48hrs totally nine mixes were prepared. Compressive strength, Split tensile strength and Rapid Chloride Penetration tests were conducted on each of the nine mixes. Results of the experimental study showed that there was an increase in compressive strength and split tensile strength with increase in NaOH concentration and curing time. Compressive strength up to 52.28 MPa was obtained with curing at 75oC for 10 molarity geopolymer mortar.

Files

(18-27)R.mohana_EFFECT OF INCREASING THE MOLARITY_Revised-format.pdf

Files (695.3 kB)

Additional details

References

  • Malhotra, V.M. (2002). " Introduction: Sustainable development and concrete technology", Concr. Int. 24(7), 22
  • Bakharev T. (2005)." Geopolymeric materials prepared using Class F fly ash and elevated temperature curing," Cem Conc. Res., 35(6), 1224-1232.
  • ACI Committee 232, Use of Fly ash in Concrete, American Concrete Institute, Farnington Hills, MI, USA, 2004.
  • D. Hardjito, B.V. Rangan, Development and properties of low-calcium fly ash based geopolymer concrete, Research Report GC1, Faculty of Engineering, Curtin University of Technology, Perth, Australia, 2005.
  • P. Duxson, A. Fernandez-jimenez, J. L. Provis, G. C. Lukey, A. Palomo, J. S. J. van Deventer, Geopolymer technology: the current state of the art, J. Mater. Sci.42 (2007) 2917-2933.
  • A. Palomo, M. W. Grutzeck, M. T. Blanco, Alkali-activated fly ashes: cement for the future, Cement Concrete Res.29 (1999) 1323-1329.
  • Z. Li, S. Liu, Influence of slag as additive on Compressive Strength of fly ash based geopolymer, J. Mater. Civil. Eng.19 (6) (2007) 470-474.
  • American Society of Testing and Materials, 2001 Annual Book of ASTM
  • Standards- ASTM C1202-97 "Standard Test Method for Electrical Indication of Concrete"s Ability to Resist Chloride Ion Penetration".
  • Hardjito D, Wallah SE, Sumajouw DM, Rangan BV(2004) ACI Mater J 101:1
  • Divya Khale, Rubina Chaudhary, Mechanism of geopolymerization and factors influencing its development: a review, J. Mater. Sci (2007) 42:729-746.

Subjects

Civil Engineering
http://matjournals.com/Engineering-Journals.html