Acrylbond

Acrylbond has been formulated to bond new concrete to old concrete or old concrete to old concrete and is especially beneficial in eliminating cracking/shrinking in architectural, ornamental and other precast products and in making glass fiber reinforced concrete (GFRC).

Acrylbond can be added to the mortar mix for patching or re-surfacing concrete floors, pipe, box culverts or other precast products, driveways, terrazzo floors and masonry. It can also be used as a mortar admix for setting stronger, more flexible tile floors and in making glass fiber reinforced concrete (GFRC). Acrylbond provides the following additional benefits:

• For patching pipe or box culverts, Acrylbond provides a more secure, stable patch and will substantially reduce rejects.
• For patching mortar, Acrylbond provides a greater shear, flexural impact and tensile strength resulting in a more durable finished product.
• Acrylbond treated floors will last longer under heavy wear conditions or high vibration and have better abrasive strength, reduced dusting and a lower maintenance cost.
• Acrylbond patches have excellent freeze/thaw resistance.
• In making GFRC and architectural, ornamental and other precast concrete, the use of Acrylbond will result in a product with no shrinkage or cracking, significantly lower water absorption and porosity, increased abrasion resistance and increased aged strain to failure. In addition, Acrylbond will improve the workability of the mix and allow simple dry air curing.

APPLICATION

For Eliminating Cracking (Crazing) and Shrinking in Precast Products:
For most applications, Acrylbond should be added at the rate of 15 to 30 ounces per 100 lbs. (975 to 1950 ml per 100 kg) of cementaceous material. If the aggregate is porous or the cement ratio is low, then more Acrylbond will be required. Acrylbond is compatible with most other additives; however, if you intend to use other admixtures, please contact us at the number listed below for consultation.

For Surface Bonding:
Remove all dirt, curing compounds, sealer, loose paint, rust and other foreign material. Etch the surface with a 20 part water and 1 part muratic acid solution. Flush the surface with water and while still damp, coat the surface with concentrated Acrylbond directly from the container. Application can be by means of a brush, roller or spray. Coverage normally is 200 s.f. per gallon. Pour the new concrete on the treated surface immediately. Acrylbond can be air cured, but avoid temperature extremes below 45ºF or above 95ºF. Do not apply Acrylbond where there is hydrostatic pressure on the concrete.

For Use as an Admix When Patching Mortar:
Premix the sand and cement. Mix equal parts of water and Acrylbond in a separate container. Add the diluted Acrylbond blend and mix for 2-4 minutes. Continue adding the diluted blend until you obtain the desired slump and consistency; then apply the modified mortar over the bonding surfaces as a topping and feather the edge at least one inch.

For Use in Making GFRC:
The recommended mix design is as follows:

Cement, 94 lbs; Sand, 47 lbs; Acrylbond, 10 lbs; Water, 22 lbs; and Glass Fibers, 9.4 lbs.

If the mix is too wet, reduce the amount of water to stiffen. If the mix is too dry, increase the amount of Acrylbond and water. The water and Acrylbond solution should be added to the mixer prior to agitation; then add the sand and cement and mix thoroughly.

Concrete Producers Solutions Inc., 16720 Park Row, Houston, TX 77084-5021. Tel: 800-231-6403; Fax: 281-398-6242.