Refer to Appendix A for tables and equations to be used. Use the CNCI method.water requirementinlitersw:c ratio• Cement content (kg/m of concrete) =• Mat = CBD (K – 0.1 FM)You are given the following design parameters for a concrete mix:M.M.D.• Vols = 1000 -The compressive strength of the concrete mix must be 40 MPa after 28 days. The cementthat is going to be used is a CEM I 52.5 with a relative density of 3.14. The stone availableTaps vis % water30is a 19.0 mm stone with a dry compacted bulk density (CBD) of 1780 kg/m3 and a relativedensity of 2.24. An average, natural sand with a fineness modulus of 2.45 and a relative2520density of 2.86 is going to be used for the mix. The slump on site is specified as 75 mm.15The concrete is going to be compacted by moderate vibration on site.105Calculate and show the amount of water, cement, stone and sand that is needed to make101520Тарвup 1 m3 of concrete mix as specified above. APPENDIX BTable 1: w:c ratios for certain cementitious materials:Water:cement(w:c) ratioSpecifiedstrength ofmix(28 days.MPa)CEM I 32.5 MPaCEM I 42.5 MPACEM I 52.5 MPa99'00.610.720.82250.670.770.720.670.62350.530.570.50.520.62Table 2: water requirement for a concrete mix where 19.0 mm aggregate is used,and a 75 mm slump is specified:Water content I/m3Sand qualitynaturalcrusherVery poor235240poor225225average210215205poobexcellent195180195Table 3: values of K for determining stone content:Approximate slumpK.Maximum size of stone. mmcompactionrange. mm9.513.219.026.537.5Hand75 - 1500.750.840.941.05compactionModerate00'L00'L80'L1.1025 - 1000.800.801.10vibration90'L0 - 25Heavy vibration00'L1.051.15Formula's for calculating the material requirements for a concrete mix design:

As per the given information we have calculate the following things which are: amount of water…

Refer to Appendix A for tables and equations to be used. Use the CNCI method. You are given the following design parameters for a concrete mix: The compressive strength of the concrete mix must be 40 MPa after 28 days. The cement that is going to be used is a CEM I 52.5 with a relative density of 3.14. The stone available is a 19.0 mm stone with a dry compacted bulk density (CBD) of 1780 kg/m³ and a relative density of 2.24. An average, natural sand with a fineness modulus of 2.45 and a relative density of 2.86 is going to be used for the mix. The slump on site is specified as 75 mm. The concrete is going to be compacted by moderate vibration on site. Calculate and show the amount of water, cement, stone and sand that is needed to make up 1 m³ of concrete mix as specified above. • Cement content (kg/m³ of concrete) = water requirement in liters • Mat=CBD (K-0.1 FM) w:c ratio • Vol = 1000- (MMM) 30 25 20 15 10 5 0 10 15 Taps v/s % water 20 Taps 25 30

Refer to Appendix A for tables and equations to be used. Use the CNCI method. You are given the following design parameters for a concrete mix: The compressive strength of the concrete mix must be 40 MPa after 28 days. The cement that is going to be used is a CEM I 52.5 with a relative density of 3.14. The stone available is a 19.0 mm stone with a dry compacted bulk density (CBD) of 1780 kg/m³ and a relative density of 2.24. An average, natural sand with a fineness modulus of 2.45 and a relative density of 2.86 is going to be used for the mix. The slump on site is specified as 75 mm. The concrete is going to be compacted by moderate vibration on site. Calculate and show the amount of water, cement, stone and sand that is needed to make up 1 m³ of concrete mix as specified above. • Cement content (kg/m³ of concrete) = water requirement in liters • Mat=CBD (K-0.1 FM) w:c ratio • Vol = 1000- (MMM) 30 25 20 15 10 5 0 10 15 Taps v/s % water 20 Taps 25 30

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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