Influence of Curing Condition and Clay Content on Strength of Geopolymer Soils

Abstract:

Soil is known as green material with low carbon dioxide production emissions in comparison with another building material. In this research, soil combined to activator alkaline to produce hardening materials as eco-friendly to the environment. The alkaline with sodium hydroxide, sodium silicate and fly ash are used. Curing temperature ranging from 80, to 140 degrees Celsius and curing time from 4 to 10 hours are investigated. The results show the strength of geopolymer soil is depended on curing time, temperature and sodium hydroxide-sodium silicate ratio. On the influence of clay content, soil is replaced by sand ranging from 20 to 80%, shows suitable clay which is from 4.79-12.43% by weight.

• Periodical: Advanced Materials Research (Volume 772)
• Pages: 858-862
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.772.858
• Online since: September 2013
• Authors: Kwon Hyugmoon, Huynh Hoang Min, Nguyen van Chanh, Le Anh Tuan
• Keywords: Alkaline Liquid, Clay Content, Geopolymer Soil, Sodium Hydroxide, Sodium Silicate

References

[1] R. McCaffrey, Climate Change and the Cement Industry, Global Cement and Lime Magazine, (2002), pp.15-19.

[2] J. Davidovits, Global Warming Impact on the Cement and Aggregates Industries, World Resource Review, 6(2), (1994), pp.263-278.

[3] J. Davidovits, Geopolymer chemistry and Applications, 3rd edition, Institute Geopolymer, Saint-Quentin, France, (2011).

[4] J. Davidovits, Ancient and modern concretes: what is the real difference, Concrete International, 12, (1987), p.23–25.

[5] VM. Malhotra, Role of Supplementary Cementing Materials and Superplasticizers in Reducing Greenhouse Gas Emissions. Proceedings of ICFRC International Conference on Fiber Composites, High Performance Concrete, and Smart Materials, Chennai, India, (2004).

[6] D. Hardjito and BV. Rangan, Development and Properties of Low-Calcium Fly ash based Geopolymer Concrete, Research report GC-1, Curtin University of Technology, Perth, Australia, (2005).

[7] P, Duxson et al., Geopolymer Technology: the current state of the art. Journal of Materials Science, 42(9), (2007), p.2917–2933.

[8] P. Duxson et al., The role of inorganic polymer technology in the development of green concrete. Cement and Concrete Research, 37(12), (2007), p.1590–1597.

DOI: 10.1016/j.cemconres.2007.08.018

[9] J. Davidovits, Chemistry of Geopolymeric Systems, Terminology. Proceeding of Geopolymer '99, Saint-Quentin, France, (1999).

[10] P. Duxson, Effect of Alkali cations on Aluminum incorporation in Geopolymeric gels. Industrial & Engineering Chemistry Research, 44(4), (2005), pp.832-839.

DOI: 10.1021/ie0494216

[11] W. Hongling et al., Synthesis And Mechanical Properties Of Metakaolinite-Based Geopolymer, Colloids Surf. A: Physicochem . Eng. Asp, 268, (2005), pp.1-6.

[12] D. Hardjito et al., Fly ash-based geopolymer concrete, Australian Journal of Structural Engineering, Vol. 6, No. 1, Australia, (2005).

[13] A.M. Mustafa Al Bakri. et al., The Effect Of Alkaline Activator Ratio On The Compressive Strength Of Fly Ash-Based Geopolymers, Australian Journal of Basic and Applied Sciences, 5(9), (2011), p.1916-(1922).