🏗️ UNIT WEIGHT / DENSITY OF CONSTRUCTION MATERIALS 📊 Knowing the unit weight of materials is essential for ✅ Accurate structural design ✅ Correct load calculation ✅ Proper quantity estimation ✅ Safe & economical construction 📌 Standard material densities used in construction: 🔩 Steel – 7850 kg/m³ 🧱 Brick Masonry – 1900 kg/m³ 🪨 Coarse Aggregate – 1800 kg/m³ 🏖️ Sand – 1650 kg/m³ 🧱 Concrete – 2400 kg/m³ 🪣 Cement – 1440 kg/m³ ⚠️ Using wrong values can lead to unsafe designs & cost overruns.
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CALCULATION OF M-15 CONCRETE M-15 1 : 2 : 4 FOR 1 m³ CONCRETE Cement Density of Cement = 1440 kg/ m Dry Volume = 1.54 x Wet Volume 1/7 x 1.54 = 0.22cum. 0.22 x 1440 = 317 kg 317 / 50 = 6.34 bag Sand 1 cum = 35.314 CFT Dry Volume = 1.54 x Wet Volume 2/7x 1.54 = 0.44 cum 0.44 x 35.314 = 15.5 CFT Aggregate 1 cum = 35.314 CFT Dry Volume = 1.54 x Wet Volume 4/7 x 1.54 = 0.88cum 0.88 x 35.314= 31 CFT Water Water cement ratio = 0.5 Dry Volume = 1.54 x Wet Volume 25 lit. in 1 bag = Total cement bag x wa
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