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.

Steel rebar grid inside wooden concrete formwork in narrow space

Basalt Rebar: Where It Makes Sense and How to Detail It in Marine Zones

Introduction Basalt rebar is a non-metal reinforcement made from basalt rock fibers that can replace traditional steel in concrete. It’s designed to resist corrosion in coastal and marine settings. This introduction covers what basalt rebar is and how it fits into marine-zone detailing. In marine zones, basalt rebar helps reduce rusting and long-term maintenance compared […]

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Steel rebar grid tied with wire on sandy ground

Reinforcement Beyond Steel Rebar: Basalt, FRP, Couplers, and Headed Bars

Introduction Reinforcement beyond steel rebar means using non-metallic or alternative materials to strengthen concrete, such as basalt fibers, FRP, couplers, and headed bars. They can resist corrosion and may install differently than traditional rebar. Always check manufacturer instructions and local rules to confirm suitability for your project. FRP rebar offers a value proposition in durability

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Stacked gray concrete cinder blocks with hollow centers

Rammed Earth vs Concrete Block Outdoors: Cost, Durability, and Maintenance Compared

Introduction Rammed earth and concrete block outdoors are two exterior wall options to compare in terms of cost, durability, and maintenance. This quick, hands-on look will help you decide what fits a DIY setup in your climate and budget. You’ll want to weigh initial costs, long-term upkeep, and how each holds up under weather and

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Concrete beams connected to a concrete column indoors

Sulfate Attack in Concrete: Symptoms, Simple Checks, and Repair Strategies

Introduction Sulfate attack in concrete is deterioration caused when sulfates in water or soil react with cement compounds, leading to cracking and loss of strength. Key takeaways Look for map cracking, efflorescence, or hollow-sounding concrete near exposed surfaces. Perform a simple finger indent test in non-reinforced areas to detect softness. Check movement under load is

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Empty unfinished room with smooth white plastered walls

Hempcrete Walls: DIY Build Basics, Drying Time, and Moisture Failure Modes

Introduction Hempcrete walls are walls built from a lime-hemp composite that forms a lightweight, breathable enclosure. As a DIY builder, you’ll mix a lime-hemp composite and place it into formwork, then let it cure with good airflow. The key is understanding that these walls are different from cement blocks and rely on porous curing and

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Close-up of textured stamped concrete floor tiles

Concrete Curing Compounds: When to Use Them (and When They Ruin Adhesion)

Introduction Concrete curing compounds are products applied to fresh concrete to retain moisture and control evaporation. They often come as liquid sprays or wipe-on films that form a moisture-retaining barrier as the concrete hardens. Check the label to see if it’s intended for curing only or for sealing and curing, and follow local guidance. Use

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Large precast concrete wall panels supported by braces at construction site

Geopolymer Concrete: When It Beats Portland Cement (Including Precast Planters)

Introduction Geopolymer concrete is an alternative to Portland cement that uses aluminosilicate binders activated by alkalis. For DIY projects, it can be mixed and cured similarly to regular concrete, but you’ll want to follow the product instructions and local guidelines. In precast planters, it can offer different finish options and installation flexibility. Geopolymer concrete often

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Stacks of red bricks wrapped on wooden pallets outdoors

Alternative Building Materials Compared: Hempcrete, Limecrete, Rammed Earth, and Geopolymer

Introduction This article compares hempcrete, limecrete, rammed earth, and geopolymer concrete as alternative building materials. In plain terms, these are non-traditional mixes and methods used for walls, floors, and envelopes in DIY projects. If you’re planning a project, check product labels, manufacturer instructions, and local rules for guidance on handling, curing, and compatibility with other

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Stacked gray cement bags piled outdoors

LC3 Cement Explained: Low-Carbon Concrete for Decorative Work (Pros, Cons, Pitfalls)

Introduction LC3 cement is a low‑carbon concrete mix that combines clinker with limestone to reduce emissions. In practice, it blends ordinary cement components with limestone to change the chemistry and clinker demand. As a DIY reader, check the bag label and local guidelines to see if LC3 fits your project. For decorative work, LC3 can

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Concrete wall surface with visible cracking and peeling

Silica Fume for Thin Concrete Sections: How to Use It Without Cracking

Introduction Silica fume is a fine supplementary cementitious material that helps reduce cracking in thin concrete sections. In plain terms, it boosts the concrete mix by refining the pore structure and tightening the finish. It’s something you mix in with cement and water per manufacturer instructions. For DIY work, think of it as a tool

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