On Improvements of Rubberized Concrete with Organosulfur Compounds

Abstract:

Crumb rubbers have been investigated as additives to concrete and promising results have been observed. Organosulfur compounds from a petroleum-refining factory were used to modify the surface properties of crumb rubbers. The intermolecular interaction forces between cement hydration products (C-S-H) and rubber crumbs were measured directly by an atomic force microscope (AFM) equipped with a colloid probe. Experimental data indicate that crumb rubber surface is more hydrophilic after the treatment with organosulfur compounds and the intermolecular interaction forces between C-S-H and rubber increase with the treatment of crumb rubbers with organosulfur compounds. Furthermore, these increased interaction forces lead to an increased concrete strength.

• Periodical: Advanced Materials Research (Volumes 156-157)
• Pages: 1459-1462
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.156-157.1459
• Online since: October 2010
• Authors: Liang Hsiung Chou
• Keywords: Adsorption, Atomic Force Microscope (AFM), Composite, Crumb Rubber, Interface

References

[1] N.N. Eldin and A.B. Senouci: Concrete and Aggregate Vol. 15 (1993), p.74.

[2] I.B. Topcu and N. Avcular : Cem Concr Res. Vol. 27(1997), p.1135.

[3] I.B. Topcu and N. Avcular: Cem Concr Res. Vol. 27(1997), p.1893.

[4] N.I. Fattuhi and L.A. Clark: Constr Build Mater. Vol. 10 (1996), p.229.

[5] Z. Li, F. Li, and J.S.L. Li. : Mag Concr Res. Vol. 50 (1998), p.297.

[6] R. Siddique, and T.R. Naik: Waste Manag. Vol. 24 (2004), p.563.

[7] C. Plassard, E. Lesniewska., I. Pochard. and A. Nonat. Langmuir. Vol. 21 (2005), p.7263.