Quick masonry
Lintels, jambs, and window sills
Works
Creating lintels, jambs, and window sills cast in place
On renovation sites, concrete is the ideal material for creating cast-in-place lintels, door and window jambs, and window sills. Indeed, on such sites, using precast lintels, jambs, or window sills is not feasible. Thus, it is necessary to pour concrete on-site.
Solution
PROMPT natural cement enables rapid formwork removal for lintels, door and window jambs, and window sills. Thanks to its quick setting time, formwork removal can occur as soon as one hour after pouring. Moreover, various textures (smooth, textured, bush-hammered, polished) and different shades are achievable, whether the substrate is new or old.
Technique
Before preparing the PROMPT natural cement mortar, ensure the substrate is properly prepared. Provide suitable metal reinforcement, as with regular cement concrete works. Oil or wax the formwork, as this will affect the appearance of the concrete once it's removed.
For placement, position the reinforcement, pour, and vibrate the PROMPT natural cement concrete prepared in a mixer or concrete mixer (PROMPT natural cement, sand or aggregate, TEMPO, water).
For formwork removal, wait around 1 hour for the sides and 2 hours for the undersides of lintels or window sill formwork.
Quel est le temps de décoffrage des linteaux, jambages et appuis de fenêtres ?
Grâce à son temps de prise rapide, les linteaux, les jambages et les appuis de fenêtres en Ciment Naturel Prompt peuvent être décoffrés rapidement. Cela permet de gagner du temps sur le chantier et d'accélérer le processus de construction.
Vous pourrez ainsi décoffrer les joues dès 1 heure et les sous-faces de linteaux ou les coffrages d'appuis de fenêtres après 2 heures.
Advices
For large lintels, loading can be done after 3 hours. Depending on the span, supporting props must be put in place for 3 weeks.
Benefits of its application
Using Vicat PROMPT natural cement concrete to create cast-in-place lintels, jambs, and window sills allows for :
- Quick return to service
- Cost-effective solution
- Suitable aesthetics: color and texture
- Adjustable setting time
Domaine d'emploi
L'utilisation du Ciment Naturel Prompt est ici parfaitement adapté pour la réalisation de :
- Linteaux
- Jambages
- Appuis de fenêtres
- Seuils de portes
Achievements
Discover our realized projects
Product
Discover everything about PROMPT natural cement
The only cement with strengths at the end of setting, it allows for the quickest return to service. In formulations, it also acts as a powerful accelerator for all hydraulic binders (lime, Portland cement, calcium sulfoaluminate cement, calcium aluminate cement).