Crafting with Concrete

Introduction Sealing hairline cracks before painting means filling and smoothing tiny cracks in a concrete wall so the paint won’t show through. Start by cleaning the crack and removing dust, then pick a filler recommended for concrete and apply it according to its instructions. Let the filler cure as directed and lightly sand smooth if […]

Introduction A phenolphthalein carbonation test is a localized destructive or minimally destructive screening check—not an anchor test. It can show how far CO₂-driven chemical neutralization appears to have progressed from an exposed concrete surface. It cannot establish concrete strength, corrosion rate, corrosion amount, bond strength, pull-out resistance, or whether a particular anchor is safe for

Introduction Rust telegraphing through concrete patches happens when corroded rebar pushes outward, showing up as stains, cracks, or rough patches on the surface. This is a sign the patch is not fully sealing the reinforcing and moisture is getting to the steel. In this article we’ll explain what to look for and how to approach