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.

Wooden concrete form with rebar set in dirt and gravel

Corrosion-Inhibiting Admixtures for Concrete: Selection, Testing, and Repair Limits

Introduction Corrosion-inhibiting admixtures are added while concrete is batched to help delay reinforcement corrosion under defined exposure conditions. They are one part of a durability system—not a cure for insufficient concrete cover, excess water, poor consolidation, cracking, defective curing, or a mix that does not suit its exposure. For new concrete, start with the exposure […]

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Stiff-bristle roller spreads wet self-leveling cement on floor.

Applying Self-Leveling Compound (Problems Explained: Causes, Testing, and Fixes)

Introduction Self-leveling compound is a leveling overlay that smooths and flattens a concrete floor when mixed and poured correctly. It fills low spots and creates a ready surface for flooring, but preparation and timing matter. Prepare the subfloor, mix to the right consistency, and work before it starts to set. Problems often come from improper

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Large crack and gap between two old concrete slabs

Crack Isolation Membranes: What They Can and Can’t Do on Older Slabs

Introduction Crack isolation membranes are thin sheets or coatings that separate a flooring layer from the concrete to limit crack transfer. They’re installed between the slab and the finish, acting as a buffer rather than a full repair. On older slabs, you’ll need to verify compatibility and follow product instructions for best results. What they

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Delamination Testing: Tap Test

Delamination Testing: Tap Test

Introduction Delamination testing using the tap test provides a quick check for bond failures in composite laminates. The guide explains how to perform the test, recognize abnormal sounds or responses, and interpret what those cues mean for structural integrity. You’ll learn practical steps, common tips, and how to determine when further inspection or more thorough

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Hairline Cracking After Cure: When It’s Normal Shrinkage Vs a Real Problem

Hairline Cracking After Cure: When It’s Normal Shrinkage Vs a Real Problem

Introduction Hairline cracking after cure is often normal shrinkage, not necessarily a sign of real damage. The article helps you learn how to distinguish shrinkage from a problem and what practical steps to take to assess cracks. You’ll discover simple observations, timing cues, and when professional evaluation is warranted. Key takeaways Hairline cracks under paint

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How to Fix Concrete Plasticizer Problems (DIY Steps + Stop Rules)

How to Fix Concrete Plasticizer Problems (DIY Steps + Stop Rules)

Introduction Identify and correct concrete plasticizer issues by adjusting mix ratios and curing practices. This article explains why plasticizer inconsistencies matter for strength and surface quality, and it offers practical steps, tips, and rules of thumb for diagnosing and addressing common symptoms. You’ll learn how to assess mix quality, select appropriate adjustments, and implement repeatable

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Installing Plywood Flooring over Concrete: What Can Go Wrong and How to Prevent It

Installing Plywood Flooring over Concrete: What Can Go Wrong and How to Prevent It

Introduction Installing plywood flooring over concrete requires proper moisture control and surface preparation to prevent failures. You’ll learn practical steps for assessing moisture, choosing the right plywood and fasteners, and applying an appropriate underlayment, plus tips to avoid common mistakes. The guide walks through real-world considerations and gives rules of thumb to help you plan,

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How to Pour a Concrete Ramp Correctly (DIY Steps + Stop Rules)

How to Pour a Concrete Ramp Correctly (DIY Steps + Stop Rules)

Introduction You can pour a small, nonstructural slab-on-ground pedestrian ramp yourself only after establishing what the ramp is for and what design detail governs it. An accessibility ramp, vehicle ramp, attached ramp, retaining ramp, and ramp on questionable soil do not share one safe thickness, base, reinforcement, or slope detail. This guide explains the practical

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Wood block with nail standing upright on concrete floor

Removing Wood Stuck in Concrete: Safe and Effective Methods

Introduction Wood stuck in concrete can be removed safely and effectively with the right approach. In this article you’ll learn how to assess the situation, choose a method that minimizes damage, and apply practical steps to extract or free the wood. The guide walks through common techniques, safety considerations, and practical tips you can adapt

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