Talk by TUM-IAS Fellow Dr. Tsuyoshi Hirata
Date: July 4, 2012
Location: TUM Chemistry Department, CH 27402 (Walter-Hieber-Hörsaal), Lichtenbergstr. 4, Garching
Title: “Polycarboxylate type superplasticizers for concrete and their working mechanism”
Cement industry represents one of the largest in the world producing a volume of ~ 3 billion tons in 2010. And superplasticizers are the indispensable material for concrete.
Polycarboxylate ether - based superplasticizers (PCEs) have been widely used all over the world to produce highly durable concrete, such as ultrahigh-strength concrete and self-compacting concrete, because of their excellent cement-dispersing performance by steric repulsion originating from polyethylene glycol side chains grafted onto an anionic polymer backbone.
This time, we describe the working mechanism of PCEs from the viewpoint of colloidal science and present new PCE molecules which show “Saratto-kan” effect (water-like flow) and cement compatibility.
The lecture can be attended without previous notice.
- Poster_Talk_Tsuyoshi_Hirata_July_4_2012.pdf662 K