Biopolymer scleroglucan as an emulsion stabilizer

In this study, we investigated the Stabilization of bitumen emulsions by scleroglucan, a rigid triple-helix forming biopolymer, in combination with a pH-sensitive cationic surfactant. Various aspects of the emulsification process and the final composition influence the Stabilization. We examined two different methods to add scleroglucan to...

Risicomethode buitendijks: Methodiek ter bepaling van risico’s als gevolg van hoogwater

De methodiek beschreven in dit document is een instrument dat de beleidsontwikkeling van de provincie Zuid-Holland ondersteunt door inzichtelijk te maken welke risico’s verbonden zijn aan het toestaan van functies in buitendijkse gebieden voor de komende 50 tot 100 jaar. Bij het bepalen van de risico’s wordt in de methodiek rekening gehouden met...

Riprap stability on the inner slopes of medium-height breakwaters

Medium height breakwaters are subjected to a considerable amount of overtopping. This implies the armour on the inner slope has to stable against overtopping waves. Existing equations do lack some basic understanding of the process of starting up movement of rock on the inner slopes. In case one relates the stability of the blocks on the inner...

Riprap stability on the inner slopes of medium-height breakwaters

Medium height breakwaters are subjected to a considerable amount of overtopping. This implies the armour on the inner slope has to stable against overtopping waves. Existing equations do lack some basic understanding of the process of starting up movement of rock on the inner slopes. In order to get more insight into this phenomenon a special...