Choose the correct answer from the followings   Use ACI method to design a concrete mix which is required to obtain f'c28 = 34.5MPa and a slump of 75mm . The fineness modulus of the aggregate is 3.0 , the bulk density of coarse aggregate is 1600 kg/m² and the maximum size is 25. Both the specific gravity of fine and coarse aggregate are 2.68. neglect the absorption and total moisture content .   1- The W/C ratio is *       a-0.74       b-0.48       c-0.57       d-0.61     2- The cement content is *       420 kg/m3       240 kg/m3       204 kg/m3       402 kg/m3     3- The carse aggregate content is *       1140 kg/m3       1004 kg/m3       1040 kg/m3       1400 kg/m3     4- The fine aggregate content is *       807 kg/m3       780 kg/m3       708 kg/m3       870 kg/m3

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Choose the correct answer from the followings
 
Use ACI method to design a concrete mix which is required to obtain f'c28 = 34.5MPa and a slump of 75mm . The fineness modulus of the aggregate is 3.0 , the bulk density of coarse aggregate is 1600 kg/m² and the maximum size is 25. Both the specific gravity of fine and coarse aggregate are 2.68. neglect the absorption and total moisture content .
 
1- The W/C ratio is *
 
 
 
a-0.74
 
 
 
b-0.48
 
 
 
c-0.57
 
 
 
d-0.61
 
 
2- The cement content is *
 
 
 
420 kg/m3
 
 
 
240 kg/m3
 
 
 
204 kg/m3
 
 
 
402 kg/m3
 
 
3- The carse aggregate content is *
 
 
 
1140 kg/m3
 
 
 
1004 kg/m3
 
 
 
1040 kg/m3
 
 
 
1400 kg/m3
 
 
4- The fine aggregate content is *
 
 
 
807 kg/m3
 
 
 
780 kg/m3
 
 
 
708 kg/m3
 
 
 
870 kg/m3
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