Stress-Chemistry Mechanism of Mortars Made with Steel Slag Sand

Abstract:

A stress-chemistry method was used to investigate the expansion behavior of mortars made with steel slag sand (SSM). The results indicated that periclase and free CaO were the main mineral components resulted in expansion of SSM by means of volume increment and local stress concentration after hydration. So it can be concluded that stress concentration arised from enrichment and uneven distribution of expansile mineral components was the main reason resulted in the volume expansion of SSM. Model of expansion of SSM was built according to the characteristics of crack and types of versicolor particles.

• Periodical: Advanced Materials Research (Volumes 163-167)
• Pages: 899-903
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.163-167.899
• Online since: December 2010
• Authors: Yun Xia Lun, Shao Shun Liu, Ming Kai Zhou, Xiao Fan Liu
• Keywords: Enrichment, Expansion Component, Stress Concentration, Uneven Distribution, Volume Instability

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