WebYes, if you look at standard concrete mix tables, adding additional aggregate will effectively weaken the mix, but those tables are based on the assumption that your aggregate is in small (~10-20mm) pieces. Concrete with larger aggregate requires less … WebFeb 6, 2024 · Measure 2–3 in (5.1–7.6 cm) down from the top of a stake and tie a piece of mason’s string around it. Pull the string straight toward the stake that’s directly across from it to mark off the side of your slab. Cut the piece of string and tie it tightly around the stake.
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