Publications by Cheng Yu | EPFL Graph Search

Effect of a novel starch-based temperature rise inhibitor on cement hydration and microstructure development

Karen Scrivener, Alexandre Reda Constantin William Caleb Ouzia, Cheng Yu, Yu Yan

This study investigates the mechanism by which a novel starch-based admixture named Temperature Rise Inhibitor (TRI) modifying cement hydration and limiting heat evolution. This admixture is designed to avoid thermal cracking of concrete. Depending on the ...

Pergamon-Elsevier Science Ltd2020

Degradation mechanism of slag blended mortars immersed in sodium sulfate solution

Karen Scrivener, Wei Sun, Cheng Yu

Additions of slag are usually considered to give cementitious materials which perform well in sulfate bearing environments. This paper compares the deterioration of slag cement blends to those of plain Portland cement and demonstrates that this occurs more ...

Pergamon-Elsevier Science Ltd2015

Application of Image Analysis Based on SEM and Chemical Mapping on PC Mortars under Sulfate Attack

Wei Sun, Cheng Yu

The degradation mechanisms of cementitious materials exposed to sulfate solutions have been controversial, despite considerable research. In this paper, two methodologies of image analysis based on scanning electron microscope and chemical mapping are used ...

Journal Wuhan Univ Technology2014

Mechanism of expansion of mortars immersed in sodium sulfate solutions

Karen Scrivener, Wei Sun, Cheng Yu

The mechanisms behind the expansion of samples immersed in solutions containing sulfate ions have been controversial. Expansion is believed to originate in the formation of ettringite, but it is not possible to find any direct correlation between these two ...

Pergamon-Elsevier Science Ltd2013