EFFECT OF HIGH VOLUME MINERAL ADMIXTURES ON PROPERTIES OF MARINE CONCRETE

Author(s): Z.Y. Li, L. Yang, L.Q. Tu, M.Q. Qin, Z.K. Ye
Paper category: Proceedings
Book title: Proceedings of CONSEC13 Seventh International Conference on Concrete under Severe Conditions - Environment and Loading Volume I
Editor(s): Z.J. Li, W. Sun, C.W. Miao, K.Sakai, O.E. Gjørv, N.Banthia
ISBN: 978-2-35158-124-7
e-ISBN: 978-2-35158-134-6
Publisher: RILEM Publications SARL
Publication year: 2013
Pages: 720-727
Total Pages: 961
Language : English

Abstract: The objective of this study was to evaluate the effectiveness of high volume mineral admixtures in producing marine concrete. For this purpose, fly ash (FA) and granulated blast furnace slag (GBFS) were used at different ratios and dosages instead of Portland cement. Cracking resistance properties of marine concrete have been investigated using adiabatic temperature rise and flat test. Chloride diffusion coefficients of concrete were evaluated using a non-steady-state migration test. Test results indicated that high-performance concrete, which has good workability, early strength and excellent development of final strength, can be obtained when with high volume mineral admixtures replacement. Addition of high volume mineral admixtures reduces the adiabatic temperature rise of cement paste, and enhances the resistance to chloride ion permeability and cracking. Replacing GBFS to a portion of FA in high volume admixture of concrete can further improve the resistance to chloride ion permeability.

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