Key techniques include using bonding agents, saw-cutting, re-pouring concrete, mechanical connectors, and epoxy injection. Conventional methods like epoxy grout injection can address cracks effectively. Look for cracks, signs of rot, moisture, and loose fasteners. Doing the assessment on a dry, clean surface helps you spot hidden issues and plan the right fix. Skipping this step leads to. Cold jointing concrete is a technique used to connect two separate concrete pours that have not fully bonded together, often due to delays or interruptions in the pouring process. This method involves preparing the existing concrete surface by cleaning and roughening it, applying a bonding agent to. Sealing of joints without special requirements on motorways, at airports, in car parks, on industrial floors and other traffic areas Jointing of chemically stressed areas according to German water resources law, e. As you know, concrete hardens through chemical reactions between cement aggregate, water, and air. This discontinuity prevents the two pours from chemically integrating into a single monolithic unit, creating a weak plane within the. Join us this week on Technique of the Week, where Jason reveals a game-changing method for making cold joints between concrete slabs look flawless.