QI: Prepare mix design for given data • The 28-day compressive strength should be 34 MPa, The slump should be between 75 mm and 100 mm and the maximum aggregate size should not exceed 19 mm The properties of the materials are as follows: • Cement : Type I, specific gravity - 3.15 • Coarse Aggregate: Bulk specific gravity- 2.65; absorption capacity -0.5%; dry-rodded unit weight = 1605 kg'm3, surface moisture - 1% • Fine Aggregate: Bulk specifie gravity= 2.60; absorption capacity - 1.1%; fineness modulus - 2.70; surface moisture - 3% Q2: Repeat Q 1: for max. aggregate size of 37.5 mm. Compare the material cost.
QI: Prepare mix design for given data • The 28-day compressive strength should be 34 MPa, The slump should be between 75 mm and 100 mm and the maximum aggregate size should not exceed 19 mm The properties of the materials are as follows: • Cement : Type I, specific gravity - 3.15 • Coarse Aggregate: Bulk specific gravity- 2.65; absorption capacity -0.5%; dry-rodded unit weight = 1605 kg'm3, surface moisture - 1% • Fine Aggregate: Bulk specifie gravity= 2.60; absorption capacity - 1.1%; fineness modulus - 2.70; surface moisture - 3% Q2: Repeat Q 1: for max. aggregate size of 37.5 mm. Compare the material cost.
Chapter2: Loads On Structures
Section: Chapter Questions
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QI: Prepare mix design for given data
• The 28-day compressive strength should be 34 MPa, The slump should be between 75 mm and 100 mm
and the maximum aggregate size should not exceed 19 mm The properties of the materials are as follows:
• Cement : Type I, specifie gravity - 3.15
• Coarse Aggregate: Bulk specific gravity= 2.65; absorption capacity = 0.5%; dry-rodded unit weight = 1605
kg/m3, surface moisture 1%
Fine Aggregate: Bulk specific gravity- 2.60; absorption capacity = 1.1%; fineness modulus = 2.70; surface
moisture - 3%
• Q2: Repeat Q 1: for max. aggregate size of 37.5 mm. Compare the material cost.
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Step 1 Mix design
VIEWStep 2 Water - cement ratio (w/c)
VIEWStep 3 Water content
VIEWStep 4 Cement content
VIEWStep 5 Coarse aggregate
VIEWStep 6 Fine aggregate
VIEWStep 7 Adjustment in weight of aggregate due to Moisture content (MC)
VIEWStep 8 Adjustment in weight of water due to Absorption capacity (AC)
VIEWStep 9 Revised mix proportion
VIEWStep 10 Final conclusion
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