Search Results for: surface prep

Introduction Bonding old to new concrete at a vertical face means creating a mechanical and/or adhesive connection so the new pour acts like part of the same structure. That usually comes down to creating keys or dowels for mechanical interlock and choosing an appropriate bonding agent—epoxy or cement slurry—based on strength needs and manufacturer instructions. […]

Introduction Concrete joint layout around columns and corners is the planned pattern of control joints and cuts that guide where concrete cracks, keeping them neat and out of the way of structural elements. In plain jobsite terms, it means thinking through where joints go before you pour so columns and corners aren’t left with random,

Introduction Repairing settlement cracks along a garage stem wall means checking why water is pooling, fixing drainage, and then sealing and patching the cracks so the wall stops moving and water stops getting in. Start by looking for low spots, clogged drains, downspouts that dump by the foundation, and any gaps at the slab-wall joint,

Introduction Epoxy anchors can work in damp concrete, but whether they do depends on the product and the site conditions. Some epoxies tolerate dampness or damp-to-wet surfaces, while others require dry holes—check the manufacturer instructions and product label before you start. On the jobsite that means choosing the right epoxy cartridge for moisture, cleaning and

Introduction A concrete moisture meter and a plastic sheet test answer different questions before coating. A meter is a fast way to compare areas and find suspicious wet spots. A taped plastic sheet is a slower visual screen for moisture reaching the surface. Neither result, by itself, proves that a slab meets every coating manufacturer’s

Introduction Concrete etch alternatives are practical cleaning and mechanical methods—like degreasing and surface profiling—that replace acid washing when you need safer, more controlled prep. As a DIYer, think of degreasing to remove oils and contaminants and of profiling (grinding, shot blasting, or scarifying) to roughen the slab so coatings will stick; check product labels and

Introduction Concrete dyes are colorants that penetrate or bind to the surface for vivid, often translucent color, while stains are chemical or pigment treatments that change color through a reaction or surface coating; pick the product by reading the label and manufacturer instructions for your exact material. In plain jobsite terms: dyes usually give brighter,

Introduction Acid stain neutralization is the simple set of checks that confirm the surface pH and residue are safe for a sealer; it tells you when the concrete is no longer chemically active after staining. In plain jobsite terms, you rinse, test, and look for no fizz, no streaks, and a neutral pH reading before

Introduction Concrete stain blotchiness is when the color looks uneven because the slab soaks up stain at different rates. It happens because porosity varies across the surface from finishing, curing, contaminants, or patchwork. You can reduce it by cleaning, profiling, and using appropriate primers or application methods—check product labels and manufacturer instructions for compatibility. For