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WorksheetsQuiz No. 5
Total questions: 10
Worksheet time: 7mins
The fine aggregate shall be free from injurious amounts of organic impurities. If subjected to the colorimatic test for organic impurities and a color darker than the standard is produced, it shall be rejected. However, when tested for the effect of organic impurities on strength of mortar by AASHTO T 71, the fine aggregate may be used if the relative strength at 7 & 28 days is not less than _________”.
95%
90%
85%
98%
Given the average stress of unwashed sample with 23.2 and the average standard of washed aggregate with 22.9 what is the Relative Strength, RS?
101%
102%
103%
100%
Soundness Test can be conducted using what kind of acid?
Magnesium Sufate
Sodium Sulfate
Sodium Oxide
Magnesium Oxide
If the Fine Aggregate is subjected to five (5) cycles of the sodium sulfate soundness Test, the weighted loss shall not exceed ___ mass percent.
10
15
12
13
Solve for A.
39%
40%
42%
41%
Solve for B.
4.00
5.00
6.00
7.00
Solve for C.
1.456
2.456
3.456
0.456
Solve for D.
3.50
4.50
2.50
5.50
Solve for E.
0.83
0.73
0.93
0.38
Solve for F.
3.284
2.284
4.284
1.284
