The concrete or mortar mix cannot be forced down into small cracks or fissures easily and you cannot be certain you have even filled the crack.
Repairing concrete in small areas cannot easily be done with a normal concrete mix as the aggregate is usually too large for small areas and the stones in the mix make it very difficult to get a good finish. This does not work for two reasons.Ĭoncrete paths crack easily if not laid properly The perceived wisdom out there is to look at a crack in a concrete path or drive and try to force some kind of cement based mortar or concrete into the existing crack. If applying multiple layers, wait for 4 hours between coats.Repairing concrete is not as easy as one might think. Lightly drag a broom across the surface in parallel lines to even out minor inconsistencies and achieve a non-slip finish. In approximately 10 minutes, Flo-Coat will achieve initial set. Once all material is placed, it’s time to wait. Make sure to continue working perpendicular to the direction of the pour, pulling material in the same direction for uniformity. Make sure to overlap with the first pour to avoid cold joints. When the first strip of Flo-Coat is spread, quickly move on to the second strip. Regularly clean the squeegee with a damp cloth to avoid drips or dragging hardened material through wet material. Over-working is the number one mistake when working with Flo-Coat! Give the material a few seconds to consolidate after spreading before touching it again. When mixed to the correct consistency, Flo-Coatwill “self-heal” as it’s poured. Use a light touch to evenly spread the material out, pulling the material in one direction only. Pull the mix perpendicular to the pour (for example, working backwards along the short edge of the slab) using a long-handled, stiff-edged rubber squeegee. Flo-Coat can achieve a 1/2” thickness, but most applicators will target no more than 1/8” in a single coat. It’ll be easier to achieve multiple thin layers than a single thick layer. Resist the urge to pour too much material at once. Pour a 1’ strip along the longest edge of the slab. Ensure your slab is still at SSD condition. Move quickly and trust the material-and yourself! Most importantly, resist the urge to over-work the surface. Remember, speed and teamwork are significant at this stage. Using painter’s tape is a great way to maintain a sharp edge on your repairs or split up large pours. 
Tape off any expansion joints to avoid accidentally filling them in with Flo-Coat.Allow any repairs to set for about 20 minutes before proceeding with resurfacing.Review the Repairing Spalled or Gouged Concrete Project Guidefor guidance. Repair any damage larger than 1/4″ deep with Top’ N Bond before getting started.
#Patio slab crack repair free#
Make sure your slab is clean and free of any loose concrete-a pressure washer is an excellent way to get it ready for resurfacing.Use the Resurfacing Calculator for fast results.One 40# bag of Flo-Coat will cover 18 square feet. Estimate the amount of material required.To get started, make sure air temperature remains above 50☏ for 24 hours before and after the project.To get familiar with how Flo-Coat handles, we recommend testing out a small amount on a piece of plywood or other scrap areas. Be warned this is a team project, so make sure to recruit a helper! If you want to breathe new life into an old, damaged slab, then resurfacing is a quick, cost-effective way to do just that-or add a unique decorative finish.
0 kommentar(er)
