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RHEOLOGICAL AND CALORIMETRIC BEHAVIOURS OF CEMENT PASTE WITH SIO3-BASED AND CACO3-BASED MINERAL ADDITIONS



Author(s): Junjie Wang and Engui Liu
Paper category: Proceedings
Book title: Proceedings of the 2nd International Conference on UHPC Materials and Structures (UHPC2018-China)
Editor(s): Caijun Shi and Baochun Chen
ISBN: 978-2-35158-219-0
e-ISBN: 978-2-35158-220-6
Publisher: RILEM Publications SARL
Publication year: 2018
Pages: 224-234
Total Pages: 11
Language : English


Abstract: The practices of mineral additions to ordinary Portland cement have become increasingly
important for the sustainable development in high performance cementitious materials. One
key consideration for the blended formulations focuses on the effects of mineral
additives/fillers on the rheological behaviours of the fresh mixtures. In this investigation, two
groups of mineral additives were introduced into ordinary Portland cement paste, namely:
SiO2-based (silica flour, silica fume and waste glass powder), and CaCO3-based (grounded
limestone powder and waste seashell powder). The rheological performances and the related
early hydration kinetics of fresh cement paste were studied and followed by rheological and
calorimetric measurements. Roles of the two different groups of mineral additions on the
rheological and calorimetric behaviours of the fresh cement paste were compared and
discussed.


Online publication : 2018
Publication type : full_text
Public price (Euros) : 0.00


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