Rheological investigation of cement-bound tile adhesives

The working properties of a tile adhesive with and without elastomer component are examined as a function of the water/solids ratio. The classical slippage behaviour of test tiles has been correlated with the rheological parameters of yield value, and storage and loss moduli. For the tile adhesive considered it was found that without an elastomer component the distribution requires less effort and is also compatible with a higher water/solids ratio. With elastification, on the other hand, more force has to be applied for the distribution, and at the same time this system can take less water and is significantly less stable to an increased W/S ratio.