Characterization of early pozzolanic reaction of Calcium Hydroxide and Calcium Silicate Hydrate for Nanosilica modified cement paste.

J.Z., Chong and Norsuzailina, Mohamed Sutan and Ibrahim, Yakub (2022) Characterization of early pozzolanic reaction of Calcium Hydroxide and Calcium Silicate Hydrate for Nanosilica modified cement paste. In: Civil engineering, science and technology structural engineering and construction materials. UNIMAS, UNIMAS, pp. 106-112. ISBN 978-967-2298-90-8

WarningThere is a more recent version of this item available.
[img] PDF
CHAPTER 16.pdf
Download (632kB)

Abstract

This study intends to investigate the early pozzolanic reaction of Nanosilica (nS) modified cement paste (NMCP) by the characterization technique of Calcium Hydroxide (CH) and Calcium Silicate Hydrate (C-S-H ) using Fourier Transform Infrared Spectroscopy (FT-IR). NMCP samples were prepared with water-binder ratio of 0.50. nS of 5-15nm particle size were used as 1%, 3% ,5% ,7% and 10% replacement of cement by weight. All samples were cured in the concrete laboratory at daily room temperature (T) and relative humidity (RH) in the range of 18-28oC and 65-90%, respectively. Powdered samples were prepared and tested at day 1,7,21 and 28. It was found that characterization technique used were able to give satisfactory qualitative indication of pozzolanic reactivity of NMCP by the presence and absence of C-S-H and C-H that can indicate which replacement has higher pozzolanicity. NMCP exhibited a higher pozzolanic reactivity compare to conventional cement paste by which cement performance was enhanced.

Item Type: Book Chapter
Uncontrolled Keywords: Nanosilica, CH, C-S-H, FT-IR, Cement Paste
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TH Building construction
Divisions: Academic Faculties, Institutes and Centres > Faculty of Engineering
Faculties, Institutes, Centres > Faculty of Engineering
Depositing User: Mohamed Sutan
Date Deposited: 08 Apr 2022 02:48
Last Modified: 08 Apr 2022 02:48
URI: http://ir.unimas.my/id/eprint/38252

Available Versions of this Item

Actions (For repository members only: login required)

View Item View Item
UNIMAS Institutional Repository is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.