Physicochemical Characterization Of Polymer
Composite Cement Systems
Author(s)
N. Mohamed Sutan, I. Yakub & S. Hamdan
Abstract
The early hydration behaviour of two different polymer composites cement
systems (PCCS) that hypothetically affects efflorescence has been investigated
through physicochemical characterization namely Puddle Test (PT), Standard
Chemical Method (SCM), Compressive Strength Test (CS), X-ray Diffraction
(XRD) and Scanning Electron Microscopy (SEM). PCCS mortar samples were
prepared with water-to-cement ratio (w/c) of 0.50. Commercially available
polymer additives namely Styrene Butadiene Rubber (SBR) and Styrene Acrylic
Ester (SAE) with different percentages of addition of 5%, 7% and 10% to
cement were used. All samples were dried cured and tested at day 28.
Efflorescence was accelerated by using PT. Its intensity, in terms of the amount
of Calcium Carbonate (CaCO3) precipitated on samples’ surfaces, was quantified
by using SEM. Results of the PCCS were then compared to the conventional
cement system. Based on this study, PCCS can potentially reduce efflorescence
where validation from CS, XRD analysis and SEM images showed that the
evidence of the pore blocking effects of PCCS in early hydration hence can
indirectly improve concrete durability and sustainability.
Keywords: polymer modified mortar, efflorescence, XRD, SEM.
Keywords
polymer modified mortar, efflorescence, XRD, SEM.
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