Datos sobre granulometria

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  • Publicado : 11 de diciembre de 2011
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Tabla de agregado fino
Weight Weight of weight of cumulative % %
Sieve No of pan reteined reteined reteined cumulative passing Lower limit Upper limit
sample + pan sampler weightreteined
No 4 512.7 521.6 8.9 8.9 1.78 98.22 95 100
No 8 492.2 551.1 58.9 67.8 13.57 86.43 80 100
No 16 416.6 549 132.4 200.2 40.06 59.94 50 85
No 30 396.9 513.3 116.4 316.6 63.35 36.65 25 60
No50 373.6 450.4 76.8 393.4 78.71 21.29 10 30
No 100 352.8 395.5 42.7 436.1 87.25 12.75 2 10
No 200 336.8 382.3 45.5 481.6 96.36 3.64
pan 284.4 302.6 18.2 499.8 100 0
total 499.8% diferencia =(( 500 – 499.8)/500) 100% = 0.04%


Tabla de agregado grueso

Weight Weight of weight of cumulative % %
Sieve No of pan reteined reteined reteined cumulative passingLower limit Upper limit
sample + pan sampler weight reteined
1 7.465 7.54 0.075 0.075 0.75 99.25 95 100
3/4 7.535 9.01 1.475 1.55 15.54 84.46 95 100
1/2 7.19 11.35 4.16 5.71 57.2442.76 25 60
3/8 7.345 9.08 1.735 7.445 74.64 25.36 25 60
4 7.175 8.66 1.485 8.93 89.52 10.48 0 10
8 7.115 7.405 0.29 9.22 92.43 7.57 0 5
pan 6.29 7.045 0.755 9.975 100 0
total9.975


% diferencia =(( 10 – 9.975)/10) 100% = 0.25%


Ejemplos de cálculos:

Prueba de agregado fino
• Weight of sampler = (Weight of sampler +pan) – (Weight ofpan)
= 521.6 – 512.7 = 8.9

• Cumulative retained weight = ƹ( Sampler retained weight)
8.9
67.8
200.2
316.6
393.4
436.1
481.6
499.8

• % cumulative retained =( Weight retained /total ) 100% =
% cumulative retained =( 8.9 / 499.8l ) 100% = 1.78%
• % pasante = 100 - % cumulative retained = 100 -1.78% = 98.22%
Prueba de agregado grueso

• Weight of sampler = (Weightof sampler +pan) – (Weight of pan)
= 7.54 – 7.465 = 0.075
• Cumulative retained weight = ƹ( Sampler retained weight)
0.075
1.55
5.71
7.445
8.93
9.22
9.975

• % cumulative retained...
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