Fluorescence Microscopy of Superplasticizers in Cementitious Systems: Applications and Challenges.

ABSTRACT: In addition to the desired plasticizing effect, superplasticizers used in high and ultra-high performance concretes (UHPC) influence the chemical system of the pastes and for example retardation of the cement hydration occurs. Thus, superplasticizers have to be chosen wisely for every material composition and application. To investigate the essential adsorption of these polymers to particle surfaces in-situ to overcome several practical challenges of superplasticizer research, fluorescence microscopy is useful. In order to make the superplasticizer polymers visible for this microscopic approach, they are stained with fluorescence dyes prior the experiment. In this work, the application of this method in terms of retardation and rheological properties of sample systems is presented. The hyd

SUBMITTER: Arend J 

PROVIDER: S-EPMC7504373 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature