Table 4 Mixing proportioning and procedure of polymer overlays
Name (Manufacturer) | Type and the main constituent | Mixing proportion | Applying procedure |
|---|---|---|---|
T-48 (Transpo Industries, Inc.) | Polymer (Resin) | Primer: Resin | Two coats of the Resin were applied to the surface of the concrete using a paintbrush before the application of the Overlay |
Polymer (Resin, Hardener, and powder) | Overlay: Resin 1/2 Hardener by the volume of Resin 11.55lbs Powder by 1 L of resin. | Resin and Hardener were thoroughly mixed to guarantee the final full hardening. Before hardening, the fresh mixture was fully mixed with powder products immediately. The entire mixture was then poured onto the concrete slab and evenly coated on the surface with a flat spoon. The overlay was left to cure for 20 min and then a layer of aggregate was applied to the base coat after 20 min of curing until complete coverage was achieved. Then the overlay was left to cure for 24 h, after which the excess aggregate was brushed off. | |
PPC-1121 (Kwik Bond Polymers, Inc.) | Polymer (Resin, promoter, and initiator) | Primer: Resin 32.3 g Promoter by 1 L of resin 32.3 g Initiator by 1 L of resin | Resin and promoter were thoroughly mixed and then incorporating the initiators, two coats of the mixture were applied to the surface of the concrete slab with a paintbrush and allowed to cure for 24 h (before application of the overlay layer. |
Polymer (Resin, catalyst, accelerator, and aggregate) | Overlay: Resin 1.6% Catalyst by the volume of resin 4% Accelerator by the volume of resin 14 lbs. Sand and Rock Mix by 1 L of resin | Resin and catalyst were thoroughly mixed and then incorporating into the accelerator. The entire mixture was blended with the sand and rock and stirred together until obtaining a homogenous mixture. The entire mixture was then scooped onto the concrete slab and spread evenly. The overlay was left to cure for 24 h. Different from T-48, no surficial aggregate broadcast was required. |