Akzo N.v.

Hollandsche Beton Groep N.v.

Lambertus C Mets

Emery G Cornelissens

Jurjen P Hofland

Hans-Juergen Schuerhoff

Arie Gerritse

Methods of forming cast prestressed concrete elements and structures include a non-corrosive reinforcing element being formed of a plurality of substantially parallel continuous filaments embedded in a matrix of thermosetting resin. These reinforcing elements are tensioned, then concrete cast about the elements is permitted to harden and the tension transferred to the now-hardened concrete in order to prestress the same. The resulting concrete elements and structures have high resistance to alkali induced corrosion of the prestressing elements.

Processes of manufacturing prestressed concrete

Dosing unit comprising a detergent and/or a bleaching agent contained in a sachet which entirely or partly consists of a sealable substrate and is provided with one or more seams that are sealed with a water-sensitive coating composition. The moment at which the sachet opens is to a great extent independent of the agitation and heating up behaviour of the (dish)washing machine. This is attained by using a coating composition comprising

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Arnhem, Netherlands

Lambertus C Mets