Related Experiment Video
Updated: Oct 30, 2025

Expression of Cementitious Pore Solution and the Analysis of Its Chemical Composition and Resistivity Using X-ray Fluorescence
Published on: September 23, 2018
Effects of PCE on the Dispersion of Cement Particles and Initial Hydration
Weiwei Zhu1,2, Qingge Feng3, Qi Luo4
1School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China.
Abstract:
The effects of polycarboxylate superplasticizers (PCEs) on the dispersing properties and initial hydration of cement particles with various water-to-cement (w/c) ratios was investigated, including the water film thickness (WFT), rheology, fluidity, adsorption of PCEs, zeta potential, degree of hydration, hydration products. The experimental results demonstrate that the initial rheological and fluidity parameters were more sensitive to the PCE dosage at a lower w/c because the WFT and the zeta potential on cement particles change more significantly. Moreover, the higher adsorption amounts of the PCEs at a lower w/c lead to a stronger inhibition of the initial hydration, whilst, at the same PCE dosage, the cement pastes have a more rapid fluidity loss and quicker hydration reactions at a higher w/c due to a lower adsorption amount of the PCE on cement particles.
Related Concept Videos
Pore Size Distribution
Adequate...
Hydration of Cement
Strength and Heat of Hydration
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
Porosity in Cement Paste
The balance of water to cement in the mix is...
Fineness of Cement
Direct...
Curing of Concrete

