Concrete

Concrete is where I keep my step-by-step guides for planning, pouring, and finishing concrete projects.

Topics include base prep, forms, reinforcement, thickness, mixing and placing, finishing, curing, sealing, and long-term durability. I also cover troubleshooting—what to do when concrete cracks, scales, dusts, or cures unevenly.

If you’re new to concrete, start with the planning and prep articles. They prevent most of the expensive mistakes.

Person spraying black paint on concrete pillar outdoors

Concrete Grinding Dust Control: Shrouds, Vacuums, and Cleanup Workflow

Introduction Concrete grinding dust control is the setup of shrouds and vacuums to keep dust from spreading. Use a shroud around the grinder and connect a vacuum with proper seals and hoses to capture dust at the source. Always follow the grinder and vacuum maker’s instructions for connections and filters. A clean cleanup workflow matters […]

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Concrete wall with visible cracking and peeling surface

Concrete Etching Gone Wrong: How to Neutralize and Recover the Surface

Introduction Concrete etching gone wrong means a surface that has been over-etched or uneven, requiring neutralizing and surface recovery. This intro covers surface preparation before etching, how to apply the corrective solution, and what comes after. Always follow the product label and your local rules for handling chemicals. After etching, neutralize the surface as directed

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Stacked precast concrete hollow core slabs on dirt ground

Concrete Crazing vs Cracking: How to Tell the Difference on New Slabs

Introduction Crazing is a fine, spiderweb-like network of tiny surface cracks on a new slab. Cracking refers to larger, more obvious breaks that can run through the slab. They behave differently in the field and require different checks. Crazing is usually tied to rapid surface drying, finishing practices, or the way the surface was treated,

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Concrete beam-to-column connection with visible joint line

Concrete Cold Joints: How to Spot Them and When They Matter

Introduction A concrete cold joint is where fresh concrete meets already hardened concrete after a delay. It happens when pours aren’t continuous or weather slows work. Expansion joints help control movement and prevent cracking by giving concrete room to expand and contract. In high-use areas like warehouses and factories, plan for traffic, building size, and

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Wet concrete being poured over metal rebar mesh

Concrete Carbonation: What It Means for Rebar and Surface Durability

Introduction Concrete carbonation is the natural process where carbon dioxide penetrates hydrated cement and neutralizes the alkaline environment. This change can influence how rebar corrodes and how the surface holds up. In plain terms, it’s the carbonation front moving inward and changing the chemistry you relied on for durability. The mechanism involves CO2 diffusing through

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polished concrete floor with large glass window and ocean view

Concrete Blisters and Delamination: How to Avoid a Weak Top Layer

Introduction Blisters and delamination are weak, separated patches on the top layer of cured concrete. They happen when moisture, trapped air, or improper finishing create gaps under the surface. As a DIYer, you want to catch the signs early and fix the surface before it gets worse. Signs include raised areas, hollow sounds when tapped,

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Concrete beams with exposed rebar at construction site

Concrete Alkali-Silica Reaction: Early Signs and Practical Mitigation

Introduction ASR is a chemical reaction in concrete where reactive silica reacts with alkali in the cement paste, causing expansion and cracking. This article explains how early signs appear and practical, home-friendly steps to reduce risk. You’ll learn what to look for, how to document symptoms, and what to ask suppliers or local rules when

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