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Abrasion-erosion resistance of hydraulic concrete under high-velocity sandblasting



Author(s): Xinhua Cai, Zhen He, Yaojiu Rong, Wang Lei
Paper category: Conference
Book title: 2nd International conference on Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. Van Breugel, Wei Sun, Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Pages: 516-522
Total Pages: 6
Language: English


Abstract: 
The abrasion-erosion resistance of hydraulic concrete incorporate different mineral admixtures under high-velocity sandblasting (the velocity exceeds 40m/s) had been investigated by means of a self-designed sandblasting apparatus. The effects of class F fly ash, silica fume, and ground granulated blast furnace slag (GGBFS) on the abrasion-erosion resistance of concrete had been explored by tests. Furthermore, the effects of impinging angle on the abrasion-erosion resistance of concrete had also been considered and the abrasionerosion failure mechanism had been analyzed through model analysis. The results revealed that certain of amount of silica fume and GGBFS combined with fly ash could effectively enhance the abrasion-erosion resistance of concrete, and then single using the class F fly ash had positive effect on the abrasion-erosion resistance of concrete while the content of fly ash was increasingly large. The concrete was subjected to wearing when the impinging angle was smaller, and to impacting when the blast angle become larger.


Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00