Hydration study of sugar cane bagasse ash and calcium hydroxide pastes of various initial C/S ratios

Author(s): Lourdes M. S. Souza, Eduardo M. R. Fairbairn, Guilherme C. Cordeiro and Romildo D. Toledo Filho
Paper category: conference
Book title: Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. van Breugel, Wei Sun and Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Publication year: 2012
Pages: 181 – 188
Total Pages: 8
Language: English

Abstract: The present paper exhibits an investigation on the reactions between calcium hydroxide (CH) and sugar cane bagasse ash (SCBA). For this purpose, pastes of various initial CaO/SiO2 (C/S) molar ratios were produced. The formed products were analyzed by thermal analyses, X-ray diffraction, scanning electron microscopy and energy dispersive spectrometer. The results show that the main product was found to be C-S-H of not specific morphology and that could not be related to the known products C-S-H (I)/C-S-H (II). Calcium alumino silicate hydrates and calcium aluminate hydrate, in the form of fine plates or needles, were also produced.

Online publication: 2012-05-16
Publication Type: full_text
Public price (Euros): 0.00