TPO Pocket Guide for Pc

1. This app is designed to encourage a better understanding of the use of thin-polymer overlay (TPO) systems for the preservation of concrete bridge decks.

2. • Minimize the intrusion of moisture, de-icing chemicals, carbonation, and other potential sources of the pre-mature degradation of concrete bridge decks.

3. By acting with a better understanding of their designed intent, the bridge owner can capitalize on the potential benefits of these overlay systems.

4. A TPO refers to a multi-layer overlay system that includes a polymer resin binder with polish-resistant aggregates broadcasted or seeded into the wet polymer prior to gelling or curing.

5. • Provide a protective, durable, skid-resistant wearing course for a concrete bridge deck.

6. Although some broad guidance is suggested as to bridge deck condition assessment, this subject is not the primary intention of this app.

7. Thickness may vary slightly dependent upon the gradation of broadcast aggregates specified for the project.

8. This app is intended to educate the designer, owner, contractor, and inspectors about TPO installation best practices.

9. The aggregate acts to provide friction for the wearing surface.

10. This is typically applied in two layers at a specified coverage rate.

11. A primer or pre-treatment is sometimes used to seal cracks and act as an adhesion promoter for the TPO.

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