Interactions between cements with several main constituents and methyl cellulose and their performance in dry mortar

Dry mortar is used at almost every construction site. Key factors to their high per¬for¬man¬ce are the cement and admixtures. Most of these products contain Portland cement due to the lack of knowledge on influences of cement main constituents other than clinker on the product performance and on the effects of admixtures. One of the most important admixtures for dry mortar are water-retaining admixtures, e.g. cellulose ethers.

Interactions between different structured or modified methyl hydroxyethyl celluloses and cements blended with limestone, blastfurnace slag or fly ash were determined. Results show the principal suitability of blended cements for dry mortar and also benefits compared to the use of Portland cement. Additionally, important information regarding the performance and application of dry mortar containing blended cements are given.

Supported by

The IGF project 17929 BG of VDZ gemeinnuetzige GmbH – VDZ gGmbH, Tannenstraße 2, 40476 Duesseldorf was supported by the AiF within the framework of Industrial Collective Research (IGF) of the Federal Ministry of Economic Affairs and Energy on the basis of a decision of the German Bundestag.


Dr. Jörg Rickert

Dr Jörg Rickert

+49-211-45 78-283

+49-211-45 78-44427


01/2014 - 09/2016


Results (German)

Interactions between cellulose ethers and cements with several main constituents in a model mix formulation for tile adhesives.

Hecker, A.; Kiesewetter, R.; Herrmann, J.; Rickert, J.; Ludwig, H.-M.

In: Zement-Kalk-Gips. 2018, 70(9), pp.46-51

lnteractions between methyl celluloses and blended cements in dry mortar.

Herrmann, J.; Hecker, A.; Rickert, J.; Ludwig, H.-M.

In: Gesellschaft Deutscher Chemiker, GDCh, (ed.). 2nd International Conference on the Chemistry of Construction Materials (München, 10.-12.10.2016). Frankfurt / M., 2016 (GDCh-Monographie Bd. 50)

Interactions between methyl celluloses and blended cements in dry mortar.

In: Leopolder, Ferdinand, Hrsg. Drymix mortar yearbook 2017: idmmc 6 (Nürnberg 3.4.2017). 2017, pp.4-9

ALIT inform, 4-5/2017, pp.86-90

Cement International Vol. 14 Nr. 05/2014 p.23

Fliesen und Platten, 12/2017, pp22-25

VDZ-Mitteilungen 161 (09/2016) pp.9

VDZ-Mitteilungen 164 (09/2017) pp.8