Matt L.

Introduction Pigments are color additives you mix into cement to change its look, and using white or gray cement sets the undertone you’ll work from. In practice, you’ll notice white cement tends to brighten and cool things, while gray gives a neutral base that can lean warm or cool depending on the pigment. Start with […]

Introduction Glass fiber dosing math for GFRC is converting manufacturer fiber dosage specs into concrete batch weights. Keep it practical by translating those specs into the actual amounts you mix on site. Tailor the math to your batch size and keep logs of what you add. Getting the fiber dosage right affects how strong and

Introduction Perlite and vermiculite concretes are lightweight mixes made with expanded mineral fillers that increase porosity in cement. They can help reduce weight and add some insulation value for fills, beds, or non-structural applications. Check the product label for how they’re intended to be used and what the mix recommends for your project. In DIY

Introduction Integral waterproofing powders are dry admixtures added to the concrete mix to bond with cement and block water paths. Liquid admixtures, on the other hand, are poured or stirred in with the water to change how the mix behaves and how water moves through the concrete. In short, powders stay in the cement matrix

Introduction Hydrated lime is a dry powder added to concrete to adjust texture and binding. In DIY mixes, it can improve workability and long-term texture, but it also changes setting behavior. Check the product label and local guidelines before use. It can influence finish quality and how smoothly you can trowel or pour. Lime affects

Introduction Aluminate cement systems can clash with Portland cement repairs because their chemistries and hydration behave differently. That mismatch can affect bonding, crack resistance, and how the repair ages in real-world use. In practical terms, you want to know if the two systems will stick together over time and cope with the environment around your

Introduction Latex (SBR) modifiers are synthetic rubber additives used in repair mortars to improve flexibility and adhesion. They help the mortar resist cracking as concrete moves, but they can reduce breathability if overused. Always check the product label and manufacturer instructions for recommended usage and cure expectations. In textile-reinforced mortars (TRMs), SBR modifiers can boost

Introduction Steel microfibers in overlays are tiny reinforcement fibers mixed into concrete to control cracking and improve durability, often replacing some needs for traditional rebar mesh. They disperse with the mix and can reduce crack widths, making overlays tougher for DIY projects. For a DIY job, compare them to rebar mesh in terms of installation

Introduction Basalt fibers and polypropylene fibers are two concrete add-ons that help crack control and finishing, with different costs and handling requirements. In practice, the choice comes down to how you mix, place, and finish the concrete, plus how much you’re willing to pay for long-term durability. Always check the manufacturer instructions and local rules

Introduction Water quality for concrete means using water free of contaminants that can weaken or damage the mix. Chlorides and sulfates in water can affect set, strength, and durability, so test or check labels and manufacturer guidance. In DIY terms, treat water like part of the recipe you must verify before mixing. There are standards