Rheology of pure and mineral admixture modified cement pastes and their degradation due to calcium leaching. Issue 2 (April 2019)

• Record Type: Journal Article
• Authors: Yang, Hu; Lu, Cairong; Liu, Weibao; Mei, Guoxing; Wang, Heng; Ge, Xueliang
• Is Part Of: IOP conference series. Volume 490:Issue 2(2019)
• Publication Date: 2019-04
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/490/3/032031
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: This paper is to deal with the modeling of compressive strength of leached pastes subjected to aggressive lechant. Firstly, rheology testing was performed on fresh pastes by using Con-Tec Viscometer. The slump flows in relation to rheological parameters were obtained. Then uniaxial compressive test was carried out on both well-preserved and corrosive pastes. The loss of compressive strength has a significant linear correlation with leached ratio for all pastes specimens. Finally, a prediction model forecasting reduction in strength was proposed.