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| Section | Core Formula / Data | Typical Use | |---------|--------------------|-------------| | | ( \textCement = \fracf_c0.85 \times 1000 ) | Strength design | | Masonry Mortar | Mortar ratio (1:6) for common brick | Bricklaying | | Footing Size | ( \textArea = \fracPq_allow ) | Foundation sizing | | Reinforcement Lap | ( \textLap Length = 40 \times \textBar Diameter ) | Bar splicing | | Beam Deflection | ( \delta_max = \frac5 w L^4384 EI ) | Serviceability check | | Roof Load | Live = 0.75 kN/m² (residential) | Roof design | | Thermal Insulation | R‑value = ( \fracdk ) | Energy‑efficiency | A: No, we request that users respect copyright