Engineering Specification & Estimation Lecture Four 2022 PDF

Engineering Specification & Estimation Lecture Four M.Sc Sattar Isawi Architectural Engineering...

Engineering Specification & Estimation Lecture Four M.Sc Sattar Isawi Architectural Engineering University of Basrah 2022 M.Sc Sattar Isawi (Architectural EngineeringUniversity Engineering of Basrah) Specification & Estimation 2022 1/5  Building Estimate Unit of Measurement Earthworks This work includes various earthwork items such as: Site leveling Excavation Back-filling Measured in m2 (area) if Measured in m3 (volume) Measured in m3 (volume) depth ≤ 30cm Prices differ based on the Measured in m3 (volume) soil type, deep of excavation, if depth > 30cm and ground water level M.Sc Sattar Isawi (Architectural EngineeringUniversity Engineering of Basrah) Specification & Estimation 2022 2/5  Building Estimate Unit of Measurement Concrete Works Concrete work can be organized into the following categories for takeoff and estimating: Concrete materials Cement −→ Measured in m3 (volume) −→ Multiplied by cement density 1440kg/m3 (weight) Sand −→ Measured in m3 (volume) Gravel −→ Measured in m3 (volume) Concrete reinforcement Steel reinforcing bars −→ Measured in Length Meter (LM) D2 −→ Multiplied by rebar weight per meter (weight) Welded wire fabric(WWF) 162 2 −→ Measured in m (area) Embedded items sleeves −→ Measured by the individual piece (numbers) anchor bolts −→ Measured by the individual piece (numbers) Formwork −→ Measured in m2 (area) M.Sc Sattar Isawi (Architectural EngineeringUniversity Engineering of Basrah) Specification & Estimation 2022 3/5  Building Estimate Unit of Measurement Masonry Works Brick and block are the two most common types of masonry units Brick Masonry (23cm × 11cm × 7cm) Block Masonry (40cm × 20cm × 15cm) Measured in m2 (area) if thickness < 25cm −→ Deduct all openings ≥ 0.1m2 −→ Deduct all Concrete elements Measured in m3 (volume) if thickness ≥ 25cm −→ Deduct all openings ≥ 0.1m3 −→ Deduct all Concrete elements M.Sc Sattar Isawi (Architectural EngineeringUniversity Engineering of Basrah) Specification & Estimation 2022 4/5  Building Estimate Unit of Measurement Tiles Work Plastering Work Floor tiles Cement plaster −→ Different dimensions e.g. (30cm × 30cm) −→ Measured in m2 (area) −→ Measured in m2 (area) −→ Deduct all openings of doors and windows −→ Applied for external and internal walls Wall tiles −→ Different dimensions e.g. (45cm × 30cm) Gypsum plaster −→ Measured in m2 (area) −→ Measured in m2 (area) −→ Deduct all openings of doors and windows −→ Deduct all openings of doors and windows −→ Applied only for internal walls Tile edge trim −→ Different dimensions e.g. (60cm × 10cm) −→ Measured in meter length (ML) −→ Deduct all openings of doors M.Sc Sattar Isawi (Architectural EngineeringUniversity Engineering of Basrah) Specification & Estimation 2022 5/5