Academic Commons

Articles

Novel Evidence for the Formation of Semi-Permeable Membrane Surrounding the Portland Cement Particles During the Induction Period

Hou, Pengkun; Kong, Deyu; Kawashima, Shiho; Qian, Jueshi; Corr, David J.; Shah, Surendra P.

This letter presents strong novel evidence for the semi-permeable membrane surrounding Portland cement during the induction period. In the cement hydration, heat curve obtained through high-resolution differential scanning calorimetry under isothermal conditions, one main and some other smaller endothermic peaks were detected. These endothermic peaks are believed to be caused by the osmotic expansion that occurs after the semi-permeable membrane forms, not the precipitation of calcium hydroxide or the imbibition of water during the induction period.

Files

Also Published In

Title
Journal of Thermal Analysis and Calorimetry
DOI
https://doi.org/10.1007/s10973-012-2781-9

More About This Work

Academic Units
Civil Engineering and Engineering Mechanics
Publisher
Kluwer Academic Publishers
Published Here
June 26, 2015
Academic Commons provides global access to research and scholarship produced at Columbia University, Barnard College, Teachers College, Union Theological Seminary and Jewish Theological Seminary. Academic Commons is managed by the Columbia University Libraries.