caa a22 4500 463187989 CHVBK 20180406164859.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10973-006-8201-2 doi (NATIONALLICENCE)springer-10.1007/s10973-006-8201-2 Nocuń-Wczelik Wiesława Faculty of Material Science and Ceramics, University of Science and Technology - AGH, al. Mickiewicza 30, 30-059, Kraków, Poland aut Calorimetryin the studies of cement-Pb compounds interaction [Elektronische Daten] [Wiesława Nocuń-Wczelik] The effect of PbO on cement hydration kinetics by calorimetric method was evaluated as a first step in this project. Substantial retardation of reaction with water at early stages with subsequent intensification of the process was found. As the next step, the model systems covering pure cement minerals and their mixtures of various composition as well as soluble Pb salts were taken into account to elucidate the mechanism of delayed, by quite good formation of products in the so-called post-induction period. The precipitation of sulphate, forming very thin impermeable layer seems to be responsible for this delaying effect in case of cement, however the other reactions of Pb compounds in alkaline environment of hydrating calcium silicate are not out of importance. In order to prove this, the studies of chemical composition in small areas were also carried out. Springer-Verlag, 2007 calorimetry nationallicence cement nationallicence hydration nationallicence immobilization nationallicence lead nationallicence Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 291-294 1388-6150 88:1<291 2007 88 10973 https://doi.org/10.1007/s10973-006-8201-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-8201-2 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Nocuń-Wczelik Wiesława Faculty of Material Science and Ceramics, University of Science and Technology - AGH, al. Mickiewicza 30, 30-059, Kraków, Poland aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Kluwer Academic Publishers 88/1(2007-04-01), 291-294 1388-6150 88:1<291 2007 88 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer