Thanks to Oldcastle Precast for producing this great video about all the steps involved in manufacturing high quality precast concrete products.
We've shared the embed link, many photos from the video and a transcription of the "Form Preparation and Pre-Pour Inspection" part which illustrates the concrete form release application by spraying and wipping the forms.
Precast concrete is a construction product produced by casting concrete in a reusable mold or "form" which is then cured in a controlled environment. This allow maximum quality control over the process and results in a consistently durable, high quality product. From here it is transported to the construction site and lifted into place. Video published on Jun 19, 2015 by Oldcastle Precast.
Form Preparation and Pre-Pour Inspection
Once the cage assembly is complete, we can begin to prepare and clean the form.
Oldcastle uses a variety of forms many of which are provided by our own internal manufacturer, Avon manufacturing.
These steel forms are built to last and will maintain exacting tolerances for more than 30 years.
At this point, all openings, cutouts or embedded items are secured to the form.
Then a form release is applied to each surface to be sure the final product can be easily lifted from the form.
Now that the form is prepared, the overhead crane is used to pick and place the cage onto the core of the form. Care is taken to ensure that the reinforcing cage is stable for transport to the form.
Once setup is complete, a certified quality control technician will conduct a pre-pour inspection to ensure conformance with the approved shop drawing. Upon satisfactory completion of this inspection, the technician will sign off and flag the form, indicating approval to place concrete.
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On-site casting defect investigations, product testing, machine start-ups and much more. Also, lab facilities are available to provide testing upon request.
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