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Concrete Casting News from the Hill and Griffith Company

Hollowcore Precast Concrete Video Showing Form Release Application

Posted by Alli Myers on Jul 6, 2017 6:17:32 PM

A hollowcore precast concrete plank is prestressed concrete used in the construction of multi-story building floors.


The concrete hollowcore method is popular in insect prone, coastal, earthquake and severe weather areas. It offers fast building assembly and lower material weight.



The hollowcore slab has tubular voids extending the full length of the slab. This makes it lighter than a solid concrete floor of equal thickness.


The reduced weight lowers transportation and material costs. They are typically 4 to 5 feet wide with thicknesses between 10 and 16 inches.


Prestressed reinforcing steel wire rope provides resistance to bending moment from loads.


The manufacturing process involves extruding wet concrete from a moving mold over a steel bed on which the form release application has dried.


The continuous slab is cut by circular diamond saws to the length required. Factory production provides the advantages of reduced time, labor and training.


Hollow core voids can be used for conduit or coated for use as a ventilation duct.

(Video and stills from Alli Myers' YouTube Channel; text from Wikipedia)

The Hill and Griffith Company also works closely with pipe and form equipment manufactures to provide optimum concrete release characteristics with their equipment.

All Grifcote products are readily biodegradable, which means they have a half-life of 28 days or fewer. And by definition, all Grifcote products are inherently biodegradable with a half-life of 60 days or fewer.

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Tags: Concrete Casting Products, Concrete Release Agents, Concrete Form Seasoning, Concrete Casting Supplies, Grifcote, Precast Concrete Form Release, Concrete Form Release Application, Form Release Application

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