Category: Crafting with Concrete - Page 98

Concrete being poured from chute onto prepared slab area

Concrete Against Existing Slabs: How to pour next to old concrete without cracks

Introduction Pouring new concrete next to an existing slab requires careful planning to prevent cracks. You’ll need a clean joint, proper isolation, and a compatible mix to control movement. Inspect the existing slab for movement, moisture, or coating and plan the joint and bonding approach accordingly. Always verify with the product label, manufacturer instructions, or […]

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Tool smoothing fresh concrete expansion joint surface

Concrete Joint Sealant Depth: Backer rod sizing and tooling that stops peel-back

Concrete / Matt L.

Introduction Backer rod sizing and proper tooling determine how deep the sealant sits and how well it resists peel-back. For DIY projects, match the rod to the joint width and choose tools that help you shape and cut the sealant cleanly. Check the joint surfaces and the manufacturer’s instructions for any minimums or recommendations. Weather

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Hand sanding chipped white chalk paint from a wooden table leg.

Chalking Paint: When to wash, when to prime, and when to strip

Off-Topic / Matt L.

Introduction Chalking paint is paint that leaves a powdery, dusty film on the surface. If you see that powder, you should plan prep steps before repainting. Wash lightly to remove dust, then assess whether you need to prime or strip. Wash the area to remove loose chalk and dirt, then let it dry. If the

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