Search Results for: cement based filler

Introduction Hairy fibers at the surface happen when fibers protrude from the concrete finish. This surface issue is usually caused by how the mix is placed and how fibers are distributed during finishing. Work with the goal of keeping fibers below the surface as you strike off and trowel. Synthetic fibers can help with crack […]

Introduction Re-entrant corner cracks are cracks that form at inner corners where two walls meet and curve back toward the interior. They happen where stresses concentrate as the concrete shrinks, settles, or is loaded in ways that push against those sharp inside corners. You’ll see them as narrow lines or wider gaps that seem to

Introduction An isolation joint is a gap that lets the concrete slab move independently from walls and columns to prevent cracking. In this article we cover where to put them around walls and columns in a DIY-friendly way, not a textbook. Check local rules and manufacturer instructions for placement guidance. Geotechnical soil conditions and reports

Introduction Microtopping over old concrete is a thin, decorative concrete top layer that can refresh a worn floor. This article explains how to prepare, mix, and apply it to minimize ghost cracks, delamination, and edge failures. You’ll get a practical, hands-on approach that stays away from textbook theory. Before you start, inspect the surface for

Introduction MOR, or modulus of rupture, is a measure of how much bending a material can withstand before cracking. Compressive strength is how much load a material can bear when squeezed. For thin overlays, MOR often matters for crack resistance under bending, while compressive strength relates to overall crush resistance. Testing MOR usually involves bending

Introduction Foamed concrete for insulation is lightweight concrete that includes air voids or foam to slow heat transfer. This article gives a practical, hands-on overview for DIY homeowners. It helps you know what to check on labels or with the manufacturer before you mix or apply it. Common failures include moisture intrusion, cracking, and poor

Introduction Foamed concrete is a lightweight mix used for making planters and fill, mixed with air-entraining foam to reduce weight. This article walks you through practical, hands-on steps for mixing, placing in forms, and finishing for a durable, good-looking result. Check the product instructions and local rules for material limits before you start. Choose the

Introduction SCMs are supplementary cementitious materials added to concrete to improve strength and density while lowering overall carbon. Metakaolin, silica fume, and LC3 are common options you might encounter in DIY mixes, each with distinct effects on workability and set. Always check product labels and manufacturer instructions, and start with small test batches to see

Introduction Papercrete is a composite made from shredded paper or cardboard mixed with a cementitious binder to form a lightweight, workable material. It relies on the paper fibers to add bulk and some insulation, while the binder provides strength. It’s a hands-on option that varies with the exact mix, moisture, and curing conditions, so results