Publikace

Influence of hydrophobic agent on rheological behavior of historical plaster. Part 1: Initial hardening time

Ing. Radka Navrátilová, Ph.D.

The influence of time on rheological properties of modified lime plaster is analyzed in this paper. Effect of composition of mixture is examined as well. Especially changes of paste due to hydrophobic and pozzolanic admixture. Main aim of rheological test is determination of flow curves, obtained by applying a succession of constant strain rates for short times. Base on performed experiments, it can be concluded that hydrophobic admixture eliminated influence of pozzolana. Also both time and temperature caused significant changes in rheological properties. Increasing values decreases the flow characteristic of the plaster. A comparative measurement with pure lime plaster was done as well.

Za obsah této stránky zodpovídá: prof. Ing. arch. Petr Vorlík, Ph.D.