concreete
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Transcript of concreete
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determination of particle size distribution of FA (dry sieve analysis)
is sieve
size
mass
retained
percentage
of mass
retained
cumulative
percentage
of mass
retained
percentage
finer
4.75 30 3.0 3.0 97.0
2.36 40 4.0 7.0 93.0
1.18 130 13.0 20.0 80.0
600 240 24.0 44.0 56.0
300 385 38.5 82.5 17.5
150 175 17.5 100.0 0.0
256.5
fineness modulus of FA 2.565
0.15 0
0.3 17.5
0.6 56
1.18 80
2.36 93
4.75 97
strength of materials laboratory work
0.15, 0
0.3, 17.
0.6,
0
20
40
60
80
100
120
0 1
percen
tage
diner
PAR
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56
1.18, 80
2.36, 934.75, 97
2 3 4 5
particle size
TICLE SIZE DISTRIBUTION CURVE
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determination of percentage of water absorption of coarse aggregate
oven dry weight of CA w1 (g) 5000
wet weight of CA w2 (g) 5030
percentage of water absorption by CA 0.60
strength of materials laboratory work
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FA CA1
weight of empty bottle w1 (g) 455 455
weight of empty bottle + FA w2 (g) 1250 1305weight of empty botle + FA + water w3 (g) 1755 1810
weight of empty bottle + water w4 (g) 1260 1260
specific gravity SG 2.65 2.833333
2.833
specific gravity of cement 3.15
strength of materials laboratory work
determination of specifiv gravity of solids / fine aggregate and coarse aggrwegate by pyconometer
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CA2
470
13001810
1260
2.964286
2.964
2.8985
ethod
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A Design Stipulations
1 Charecteristic compressive strength M352 Degree of workability Medium
3 Slump (mm) 50 to 100
4 Degree of quality control Good
5 Type of exposure Mild
B Test Data for materials
(i) Specific Gravity of cement 3.15
(ii) Specific Gravity of coarse aggregate 2.64
(iii) Specific Gravity of Fine aggregate 2.59
(iv) Water absorption of Coarse aggregate 0.60%
(v) Water absorption of Fine aggregate 0%
(vi) Free moisture (surface) Coarse aggregate 0%
(vii) Free moisture (surface) Fine aggregate 2.00%(viii) Sieve analysis (Fine aggregate) Zone II
(ix) Size of the aggregate(mm) 20
Fine aggregate fraction in total aggregate 0.35
C Target mean strength of concrete 41.6 Mpa
D Selection of water cement ratio 0.500
Initial water content 165 lit/m3
E Calculation of cement content 330.00 Kg/m3
F Determination of fine & coarse aggregate
Fine aggregate ( Kg/m3) 643.8 Kg/m3
coarse aggregate ( Kg/m3) 1218.8 Kg/m3
Result of mix design (kg Per Cu.m)
Six Cubes
Cement content = 330.00 7.68 Kg
Fine aggregate = 644.00 15.00 Kg
Coarse aggregate = 1219.00 28.39 Kg
water content =165.00
3.84 Kg
Water cement ratio = 0.50 0.44
Ratio = 1:1.95:3.69
CONCRETE MIX DESIGN - IS METHOD
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SOURCE DATA
M15 10mm Very Low 0 to 25 Zone I M10 3.5 10 Comp Stre
M20 12mm Low 25 to 50 Zone II M15 3.5 15 51
M25 20mm Medium 50 to 100 Zone III M20 4 20 43.5
M30 40mm High 100 to 180 M25 4 25 36.5
M35 M30 4 30 31
M40 M35 4 35 27
M45 M40 5 40 23
M50 M45 5 45 18
M50 5 50
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W/C ratio size of agg Water(kg) Sand perc entrapped air
0.3 10 200 40 3
0.35 0.363571429 20 186 35 2
0.4 FALSE 40 165 30 1
0.45 FALSE
0.5 FALSE
0.55 FALSE
0.6
0.363571429
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TRIAL MIX 1
CAST
Cement content = 418 9.734175 Kg
Fine aggregate = 613 14.27524 Kg
Coarse aggregate = 1242 28.92308 Kgwater content = 186 4.331475 Kg
Water cement ratio = 0.444545 0.44
Ratio = 1:1.47:2.97
TRIAL MIX 2
CAST ON 03.04.07 TUESDAY
Cement content = 382 8.895825 Kg
Fine aggregate = 639 14.88071 KgCoarse aggregate = 1294 30.13403 Kg
water content = 170 3.958875 Kg
Water cement ratio = 0.444545 0.44
Ratio = 1:1.67:3.38