Concrete Guides: Start Here
This hub collects my most practical concrete guides in one place—prep, forms, reinforcement, placing, finishing, curing, sealing, and repairs.
If you’re new to concrete, don’t start with the pour. Start with the prep and planning guides first. That’s where most “mystery problems” are born.
Start here
- Concrete curing time for sealing, paint, and loads
- Concrete finishing timing: when to float and trowel
- Control joint depth rules that reduce random cracking
- Vapor barrier under slabs: when it matters and how to tape seams
- Rebar chairs and supports: keep steel off the ground
- Concrete crack stitching: when staples + epoxy beat “fill and forget”
- Sealing concrete outdoors: penetrating vs film-forming
- Peeling concrete sealer: moisture and prep mistakes that cause failure
- Concrete Surface Profile (CSP): what it means and how to achieve it
- Concrete dusting floors: why the surface powders and how to harden it
Latest concrete posts
Lithium Nitrate Admixture for ASR Mitigation: When It’s Used and DIY Considerations
Introduction Lithium nitrate admixture is used to help mitigate ASR in concrete. This article explains when it’s typically considered and what it means for a DIY project. It’s about practical decision points you’ll face on site. Choosing lithium nitrate involves looking at product instructions, mix design goals, and local guidance. This piece covers how it fits into a DIY mix, how to evaluate effectiveness, and what durability questions to ask….
Concrete Placement in Congested Rebar Without Honeycombing: Sequencing, Head Pressure, and Vibration Control
Introduction Concrete placement in congested rebar without honeycombing means planning and executing pours so concrete flows around dense steel without leaving voids. Take time to prep formwork and rebar layout, then sequence pours to keep flow paths open and minimize segregation. Choose direct discharge or pumping as your method, and use appropriate vibration and tamping to consolidate around the bars while controlling head pressure. Always follow label instructions, manufacturer guidance,…
How to Brace Tall Forms for Hydrostatic Pressure: A Practical DIY Design Check
Introduction Bracing tall forms against hydrostatic pressure means preventing movement and failure by anchoring and tying the forms securely. This introduction walks you through practical checks you can do on site, without heavy jargon or guesswork. Keep the focus on stability, simplicity, and safety as you set up supports. Before you pour, check that your braces and supports will resist the expected water load without bowing. Think about riser spring…
Form Liner Basics: Getting Consistent Texture and Avoiding Trapped Air Patterns
Introduction Form liner basics mean using flexible surface liners in concrete forms to shape texture and finish. They define the pattern you pull from the concrete and help control air pockets as the mix cures. We’ll cover how to choose liners, how they sit in the frame, and what to look for during setup. To get consistent texture, work the liner into the frame cleanly and press evenly with the…
Plastic Rebar Chairs vs Wire Chairs: Avoiding Rust Staining and Punch-Through
Introduction Plastic rebar chairs are non-metal, lightweight supports that keep rebar off the form and away from the wet concrete. Unlike wire chairs, they won’t rust and stain the concrete, which helps with a cleaner pour. Check that the chairs are rated for the cover you need and compatible with your rebar size before using. Wire chairs can rust and punch through if the coating fails, so many DIYers prefer…
How to Avoid Rebar Shadowing on Thin Countertops: Cover, Pigment, and Sealing Strategies
Introduction Rebar shadowing on thin countertops happens when embedded metal rebar or mesh shows through the surface. This article explains practical ways to prevent that by using proper cover, pigment strategy, and sealing steps. Always verify manufacturer instructions and local rules for materials and installation before you start. Cover techniques focus on keeping the metal fully buried and well away from the edge of the countertop. Pigmentation can help mask…
Concrete Finishing at High Altitude: Evaporation Spikes, Set Time Changes, and Curing Adjustments
Introduction Concrete finishing at high altitude means adjusting your process and materials to account for thinner air and changing weather so the slab cures properly and finishes stay intact. Keep the surface protected from rapid evaporation by scheduling pours for cooler parts of the day, covering with appropriate material soon after finishing, and watching wind and sun exposure. Check the mix instructions and local guidelines for any recommended adjustments, and…
Using Burlap for Wet Curing: How to Keep It Wet Without Staining the Surface
Introduction Burlap can be used to keep concrete moist during curing without staining the surface when applied correctly. This method relies on evenly saturated burlap laid over the fresh pour and kept moist. Check the burlap material and manufacturer guidance for suitability and any surface protection needs. Choose burlap that is plain and untreated, and follow any labeling guidance to avoid staining. Lay the burlap over the surface, keep it…
Curing Blankets and Insulated Tarps: Preventing Early Freeze Without Overheating
Introduction Curing blankets and insulated tarps are coverings used to shield soil and plants from early freezing while preventing overheating. In DIY terms, you can drape them over beds and secure edges with stakes or weights. Check the label for how to vent on sunny days and what materials breathe, so you don’t trap too much heat. These covers work best when you time the on/off cycles with local temperatures…
Saw-Cut Timing With Early-Entry Saws: When They Beat a Standard Saw
Introduction Early-entry saws let you start a cut sooner than a standard saw. This approach aims to save time and reduce waiting around for equipment or setup. Keep in mind you must check safety and jobsite rules before changing timing. Plan your sequence, set up blades, and keep steady progression to avoid overheating or mistakes. Always verify blade compatibility and follow safety guidelines from the manufacturer. If you’re unsure about…
