Engineered Properties of Sustainable Cement-Based Composites Containing Recycled Rock Wool and Supplementary Cementitious Materials

Abstract:

This study investigates the properties of cement-based composites with addition of various recycled rock wools and compare with the properties of composites containing fly ash and ggbs. The use of recycled rock wool is with a cylindrical and fiber-shape particle less than 75 μm. Based on the chemical composition and particle size distribution, the material properties of recycled rock wool are similar to other pozzolanic materials such as fly ash and ggbs and can be use a supplementary cementitious material. The experimental results show that partially replacing cement with recycled rock wool improves the compressive strength and porestructure, but reduce the flow spread at the high level replacement. Therefore, the test results indicate that recycled rock wool is an effective mineral admixture, with 10 % to 30 % as suitable replacement ratio of cement for the difference water/cementitious ratios.

• Periodical: Applied Mechanics and Materials (Volumes 284-287)
• Pages: 113-117
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.284-287.113
• Online since: January 2013
• Authors: Wei Ting Lin, Ta Yuan Han, Yuan Chieh Wu, An Cheng, Ran Huang, Tsai Lung Weng
• Keywords: SEM Observation, Strength, Sustainability, Waste Treatment

References

[1] J.H. Sharp, E.M. Gartner and D.E. Macphee: Adv. Cem. Res. Vol. 22 (2010), p.195

[2] C. Bilim: Const. Build. Mater. Vol. 25 (2011), p.3175

[3] Y.C. Kim and Y.W. Choi: Const. Build. Mater. Vol. 30 (2012), p.500

[4] L. Jiusu, X. Hanning and Z. Yong: Const. Build. Mater. Vol. 23 (2009), p.1287

[5] C.L. Lee, R. Huang, W.T. Lin and T.L. Weng: Mater. Des. Vol. 37 (2012), p.28

[6] W.T. Lin, A. Cheng, R. Huang, M.C. Chi and H. Hwang: Adv. Sci. Lett. Vol. 4 (2011), p.1155

[7] A. Cheng, W.T. Lin and R. Huang, Mater. Des. Vol. 32 (2011), p.636