Q-3: Two aggregates (A1 and A2) were obtained from the field. A sieve analysis was performed on each sample and the samples were each brought to the oven dry condition (OD) and weighed. Data was obtained for each of aggregates and is presented in tables below. Table 1 Results from sieve analysis Opening Weight of Agg. retained (g) A1 Sieve Size (mm) 9.5 4.75 2.36 2.00 1.18 0.60 0.30 0.15 0.075 A2 3/8" No. 4 No. 8 No. 10 No. 16 No. 30 No. 50 No. 100 No. 200 Pan 65 60 50 50 25 150 246 50 118.5 75 50 25 10 15 Table 2 Absorption capacity and moisture content data Field Weight (Wiald) Oven Dry Weight (Wod) Absorption capacity (%) A1 Wheld= 500.0 g WoD= 498.5 g AC=0.7% A2 Wheld= 500.0 g WOD= 496.0 g AC=0.6% a) Plot the gradation for each aggregate on the graph. Indicate which gradation curve belongs to which aggregate.
Q-3: Two aggregates (A1 and A2) were obtained from the field. A sieve analysis was performed on each sample and the samples were each brought to the oven dry condition (OD) and weighed. Data was obtained for each of aggregates and is presented in tables below. Table 1 Results from sieve analysis Opening Weight of Agg. retained (g) A1 Sieve Size (mm) 9.5 4.75 2.36 2.00 1.18 0.60 0.30 0.15 0.075 A2 3/8" No. 4 No. 8 No. 10 No. 16 No. 30 No. 50 No. 100 No. 200 Pan 65 60 50 50 25 150 246 50 118.5 75 50 25 10 15 Table 2 Absorption capacity and moisture content data Field Weight (Wiald) Oven Dry Weight (Wod) Absorption capacity (%) A1 Wheld= 500.0 g WoD= 498.5 g AC=0.7% A2 Wheld= 500.0 g WOD= 496.0 g AC=0.6% a) Plot the gradation for each aggregate on the graph. Indicate which gradation curve belongs to which aggregate.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Q-3: Two aggregates (A1 and A2) were obtained from the field. A sieve analysis was performed on each sample and the samples were each brought to the oven dry condition (OD) and weighed. Data was obtained for each of aggregates and is presented in tables below.
a) Plot the gradation for each aggregate on the graph. Indicate which gradation curve
belongs to which aggregate.(Show all necessary calculation steps in a table)
b) Determine the gradation type of each aggregate.
c) Determine the fineness modulus (FM) for A1 and A2. Indicate which aggregate is
coarser and which is finer.
d) Determine the total percent moisture content of each aggregate, A1 and A2.
Describe the field moisture state of each aggregate as dry or wet by comparing
with its absorption capacities.
e) Determine the mass of each sample in the SSD state. For each sample, how much
add water or dry the sample to bring it to SSD state?
f) If for A1 and A2 masses under water are 302.0 g and 319.0 g, respectively,
determine oven dry specific gravity.
Transcribed Image Text:a) Plot the gradation for each aggregate on the graph. Indicate which gradation curve
belongs to which aggregate.
b)
c) Determine the gradation type of each aggregate.
d) Determine the fineness modulus (FM) for A1 and A2. Indicate which aggregate is
coarser and which is finer.
e) Determine the total percent moisture content of each aggregate, A1 and A2.
Describe the field moisture state of each aggregate as dry or wet by comparing
with its absorption capacities.
f) Determine the mass of each sample in the SSD state. For each sample, how much
add water or dry the sample to bring it to SSD state?
g) If for A1 and A2 masses under water are 302.0 g and 319.0 g, respectively,
determine oven dry specific gravity.
Transcribed Image Text:Q-3: Two aggregates (A1 and A2) were obtained from the field. A sieve analysis was
performed on each sample and the samples were each brought to the oven dry condition
(OD) and weighed. Data was obtained for each of aggregates and is presented in tables
below.
Table 1 Results from sieve analysis
Weight of Agg.
retained (g)
Sieve Size
Opening
(mm)
9.5
4.75
2.36
A1
A2
3/8"
65
No. 4
No. 8
No. 10
60
25
2.00
50
150
No. 16
246
1.18
0.60
0.30
0.15
0.075
50
No. 30
No. 50
50
118.5
10
No. 100
75
15
No. 200
50
Pan
25
Table 2 Absorption capacity and moisture content data
A1
Wield= 500.0 g
WoD= 498.5 g
AC=0.7%
A2
Field Weight (Wfield)
Oven Dry Weight (WoD)
| Absorption capacity (%)
Wfeld= 500.0 g
WoD= 496.0 g
AC=0.6%
a) Plot the gradation for each aggregate on the graph. Indicate which gradation curve
belongs to which aggregate.
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