Characterisation of microstructure in Limestone Calcined Clay Cementi- tious systems

Author(s): Yuvaraj Dhandapani, Manu Santhanam
Paper Category: proceedings
Book Title: Proceedings of the International Conference on Sustainable Materials,Systems and Structures (SMSS2019)
Editor(s): Ivana Carević Stjepan Lakušić Dirk Schlicke
ISBN: 978-2-35158-217-6
e-ISBN: 978-2-35158-218-3
Publisher: RILEM Publications SARL
Publication Year: 2019
Pages: 38 - 39
Total Pages: 2
Language: English

Abstract: Recent studies on the binder and concrete properties of limestone calcined clay cement
(LC3) have shown good potential for producing high-performance, low clinker cement with a
combination of limestone and calcined clay [2]. The greater resistance to ionic ingress, more
specifically chloride ingress and sulphates, was found to be strongly influenced by the reduced
pore sizes due to higher reactivity of calcined clay present in LC3 systems [2]. Even lower
grade calcined clay results in an early refinement of pore structure due to highly pozzolanic
nature of the amorphous phase [3] and dense microstructure formed in such systems [4]. This
alteration in the physical structure is related to the nature and chemistry of hydration products
and the variation in the composition of C(A)SH formed in these systems discussed in this paper.

Online Publication: 2019
Publication Type: full text
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