5. Design the concrete mix according to the following conditions: Design Environment Building frame Required design strength = 27.6 MPa %3D Minimum dimension = 150 mm Minimum space between rebar = 40 mm Minimum cover over rebar = 40 mm Maximum slump is required Statistical data indicate a standard deviation of compressive strength of 2.1 MPa is expected (more than 30 samples). Only air entrainer is allowed. Available Materials Air entrainer: Manufacture specification 6.3 ml/1% air/100 kg cement. (Use maximum or +2% air content) Coarse aggregate: 19 mm nominal maximum size, river gravel (rounded) Bulk oven-dry specific gravity : Oven-dry rodded density = 1761 kg/m3 2.55, Absorption = 0.3% %3D %3D Moisture content = 2% Fine aggregate: Natural Sand Bulk oven-dry specific gravity = 2.659, Absorption = 0.5% Moisture content = 2% Fineness modulus = 2.47

5. Design the concrete mix according to the following conditions: Design Environment Building frame Required design strength = 27.6 MPa %3D Minimum dimension = 150 mm Minimum space between rebar = 40 mm Minimum cover over rebar = 40 mm Maximum slump is required Statistical data indicate a standard deviation of compressive strength of 2.1 MPa is expected (more than 30 samples). Only air entrainer is allowed. Available Materials Air entrainer: Manufacture specification 6.3 ml/1% air/100 kg cement. (Use maximum or +2% air content) Coarse aggregate: 19 mm nominal maximum size, river gravel (rounded) Bulk oven-dry specific gravity : Oven-dry rodded density = 1761 kg/m3 2.55, Absorption = 0.3% %3D %3D Moisture content = 2% Fine aggregate: Natural Sand Bulk oven-dry specific gravity = 2.659, Absorption = 0.5% Moisture content = 2% Fineness modulus = 2.47

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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