Interaction between polycarboxylate superplasticizers and non-calcined clays and calcined clays: A review

L Lei, M Palacios, J Plank, AA Jeknavorian - Cement and Concrete …, 2022 - Elsevier
At first, a critical overview of current polycarboxylate (PCE) technology including the
chemistry of different kinds of PCEs, characteristic molecular properties, their interaction with …

Research progress on polycarboxylate based superplasticizers with tolerance to clays-a review

Y Ma, C Shi, L Lei, S Sha, B Zhou, Y Liu… - Construction and Building …, 2020 - Elsevier
Polycarboxylate ether/ester (PCE) superplasticizers are widely used due to their molecular
structural designability, low dosage and high efficiency. However, their high sensitivity and …

Interaction mechanisms between Na montmorillonite clay and MPEG-based polycarboxylate superplasticizers

S Ng, J Plank - Cement and concrete research, 2012 - Elsevier
Sodium montmorillonite clay is shown to negatively impact the dispersion force of two
methacrylate based polycarboxylates (PCEs) in cement paste. The PCEs tested consist of …

[HTML][HTML] A polycarboxylate as a superplasticizer for montmorillonite clay in cement: Adsorption and tolerance studies

G Chen, J Lei, Y Du, X Du, X Chen - Arabian journal of chemistry, 2018 - Elsevier
A novel polycarboxylate superplasticizer (PCE) with a long polyoxyethylene (PEO) chain
and a terminal carboxylic group was synthesized from a modified polyether (SAE-IPEG) to …

A concept for a polycarboxylate superplasticizer possessing enhanced clay tolerance

L Lei, J Plank - Cement and Concrete Research, 2012 - Elsevier
Conventional PCEs are known to easily incorporate into the layer structure of clay by means
of their pendant PEO side chains, hence their dispersing ability in concrete is much impeded …

A study on the impact of different clay minerals on the dispersing force of conventional and modified vinyl ether based polycarboxylate superplasticizers

L Lei, J Plank - Cement and concrete research, 2014 - Elsevier
The impact of three different clay minerals (montmorillonite, kaolinite and muscovite) on the
dispersing force of vinyl-ether based PCE superplasticizers was studied. At first, a …

Synthesis and properties of a vinyl ether-based polycarboxylate superplasticizer for concrete possessing clay tolerance

L Lei, J Plank - Industrial & Engineering Chemistry Research, 2014 - ACS Publications
Common polycarboxylate ether (PCE) superplasticizers that possess polyethylene glycol
(PEG) graft chains exhibit high sensibility toward clay impurities contained in concrete …

Amphoteric polycarboxylate superplasticizers with enhanced clay tolerance: Preparation, performance and mechanism

X Tang, C Zhao, Y Yang, F Dong, X Lu - Construction and building …, 2020 - Elsevier
From the point view of molecular structure design, three different kinds of amphoteric
polycarboxylate superplasticizers (APC) by introducing a cationic monomer such as [2 …

Specific molecular design of polycarboxylate polymers exhibiting optimal compatibility with clay contaminants in concrete

L Lei, Y Zhang, R Li - Cement and Concrete Research, 2021 - Elsevier
It is widely recognized that the dispersing ability of polycarboxylate superplasticizers (PCEs)
could be hindered due to the presence of clay contaminants in concrete. In this study, a …

Interaction of individual meta clays with polycarboxylate (PCE) superplasticizers in cement investigated via dispersion, zeta potential and sorption measurements

M Schmid, J Plank - Applied Clay Science, 2021 - Elsevier
Polycarboxylate (PCE) comb polymers were selected as potential dispersant for
suspensions prepared from individual calcined clay samples. It was anticipated that …