Concrete Surface Prep Part 3: Grades of Roughness - Graco Inc.
In Part I of our series on concrete surface preparation, we looked at how to detect, remove and repair unsound concrete. In Part II, we saw the different kinds of surface contaminants for concrete and how to clean them. In Part III, we look at methods for roughening the surface in preparation for the coating or overlayment.
Proper surface preparation of existing concrete is essential for achieving a successful project including resurfacers, polymer-modified or self-leveling overlays, sealers, coatings, or stains.
Concrete Surface Preparation
2020年9月2日 · Concrete surfaces are prepared prior to resurfacing concrete to look like plain concrete again or to be upgraded to a decorative finish. Today polymers can be applied as thin as 1/8 " or up to 3/4" thick and stamped, producing a surface that looks just like a normal stamped concrete surface.
When bonding fresh concrete to existing, prepare the existing concrete surface by scabbling, scarifying, abrasive (sand) blasting, needle scaling, high-pressure water jetting (5,000-45,000 psi), or steel shot blasting.
Use this guide to identify the surface profile of your concrete. CSP 1 being the indicator for a nearly smooth floor and CSP 10 indicative of an extremely rough floor. The range of variation will depend on strength, composition, aggregate and finish. CSP 1-4 not recommended with cement based products.
Concrete preparation is the process by which sound, clean, and suitably roughened surfaces are produced in areas to be repaired.4 It includes delineating the repair boundaries by sawcutting; removal of unsound and, if necessary, sound concrete and bond-inhibiting foreign materials from the exposed concrete and reinforcement surfaces; opening the...
Proper surface preparation is critical to the short- and long-term performance of protection systems applied to concrete. Inadequate surface preparation is one of the most common causes of concrete protection system failures. This guide provides information and recommendations for the evaluation and preparation of concrete surfaces that are to
Surface Profile Inspection Guide from SP1 to SP10 - Runyon Surface Prep
2016年9月5日 · Our Surface Profile Inspection Guide helps in determining the desired surface profile of your concrete or asphalt and indicates the proper diamond tooling and machinery required for achieving it during the preparation process. The lower the surface profile (SP) number (SP1), the flatter the surface. An SP10 rating is an extremely rough surface.
Concrete Surface Preparation
Effective concrete surface preparation ensures proper adhesion, durability, and longevity of subsequent applications. Different techniques satisfy various project needs based on the condition of your concrete surface and the desired final result.
Surface Prep Guide - Sika USA
Determine the general condition, soundness, presence of contaminants, and the best method to prepare the surface. The concrete substrate must be sound and possess a minimum compressive strength of 3626 psi (25 N/mm2 or 25MPa) with a minimum pull-off strength of 218 psi (1.5 N/mm2 or 1.5 MPa).