Search Results for: control joint

Introduction Using plastic to cure concrete means covering fresh concrete with plastic to trap moisture and heat and guide a smooth finish. This helps limit discoloration, wrinkling, and soft spots by slowing evaporation. Check local rules and product labels for what type of plastic and how to secure it. Choose a clean plastic sheeting that […]

Introduction Adding gravel to bagged concrete is blending an appropriate amount of aggregate with a pre-mixed concrete product to improve stability and workability. Check the bag or manufacturer instructions for the recommended ratio and how the aggregate should be added. The aim is a consistent mix with fewer voids and a solid, workable set without

Introduction Galvanized rebar is steel reinforcing bar coated with zinc to resist rust. In DIY projects, that coating matters for longevity in moist concrete, but you still need to follow local rules and manufacturer guidance. When you’re tying it into repair work, consider how the galvanized surface will interact with repair mortars and what to

Introduction A rebar lap splice overlaps two reinforcing bars so force can transfer through the concrete from one bar to the next. It is not a universal “multiply the bar diameter” DIY rule. The required lap depends on the adopted code, project drawings, bar size and grade, concrete strength and type, coating, bar position, cover,

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 Ferrocement is a thin, reinforced cement mortar system that uses mesh and a cementitious mix to build lightweight, curved shells like planters. It relies on multiple coats and a strong mesh lattice to hold shape and resist cracking. It’s a hands-on technique that you can adapt for small DIY projects, with attention to formwork

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