Two samples of sand are mixed together. The percentage of the cumulative retained for each sieve is shown in Table (1) below. The mixing ratio is (3:1) for (Sand2: Sand1). Answer the following: a) What is the average size of particles for the mixture? b) If the percentage of cumulative retained for Sand (2) is shown in Table (1), then is the grading of Sand (1) within the standard limits?
Two samples of sand are mixed together. The percentage of the cumulative retained for each sieve is shown in Table (1) below. The mixing ratio is (3:1) for (Sand2: Sand1). Answer the following: a) What is the average size of particles for the mixture? b) If the percentage of cumulative retained for Sand (2) is shown in Table (1), then is the grading of Sand (1) within the standard limits?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Two samples of sand are mixed together. The percentage of the cumulative retained for
each sieve is shown in Table (1) below. The mixing ratio is (3:1) for (Sand2: Sand1).
Answer the following:
a) What is the average size of particles for the mixture?
b) If the percentage of cumulative retained for Sand (2) is shown in Table (1), then is the
grading of Sand (1) within the standard limits?
Table (1)
% cumulative
Sieve size (mm)
retained
10
4.75
2.36
1.18
0.6
0.3
0.15
Mixture
5
20
44
64
91
98
Sand (2)
5
25
55
80
90
99
% Standard limits
100 95-100 | 80-100 | 50-85 | 25-60 | 10-30
2-10
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