ACI Aggregate Testing Technician - Level
2
AASHTO T 104 Soundness of Aggregate
1. The cause of this test is to estimate the __________ of aggregates whilst uncovered to
_________ moves. - ANS-Soundness; weathering
AASHTO T 104 Soundness of Aggregate
10. Test and report very first-rate and very coarse samples ___________ from the rest when
they each exist in the mixture to be examined. - ANS-Separately
AASHTO T 104 Soundness of Aggregate
eleven. Use the nest of sieves specified in 5.1 and five.2 to split the ____________ samples. -
ANS-Graded
AASHTO T 104 Soundness of Aggregate
12. Samples have to be immersed in the answer, protected to a intensity of at the least
__________ for not less than _________ nor more than __________. - ANS-12.5 mm (1/2 in.);
16 hours; 18 hours
AASHTO T 104 Soundness of Aggregate
13. Which of the subsequent steps are covered (as said right here) in the take a look at
technique:
(a) samples are immersed inside the answer;
(b) samples are drained for 15 ± 5 min.;
(c) samples are dried in an oven at 230 ± nine °F;
(d) samples are cooled to room temperature. - ANS-a, b, c, d
AASHTO T 104 Soundness of Aggregate
14. Constant weight is while the weight loss is less than zero.1% of the pattern weight after four
hours of drying. True or False? - ANS-True
AASHTO T 104 Soundness of Aggregate
,15. The pattern is decided to be freed from sodium or magnesium sulfate when the wash water
attains the identical degree of cloudiness as tap water when dealt with with ______________ -
ANS-Barium Chloride
AASHTO T 104 Soundness of Aggregate
sixteen. Following the various steps within the system, two examinations need to be conducted:
the ___________ exam and the ___________ exam. - ANS-Quantitative; qualitative
AASHTO T 104 Soundness of Aggregate
17. In the first exam for coarse aggregates, _____________ have to be by way of hand. -
ANS-Sieving
AASHTO T 104 Soundness of Aggregate
18. Examples of numerous sorts of motion produced by way of the check include:
____________, _____________, ____________, ___________, ___________. -
ANS-Disintegration, splitting, crumbling, cracking, flaking
AASHTO T 104 Soundness of Aggregate
19. No suggested form for recording take a look at statistics is covered. True or False? -
ANS-False; Table 1 is a cautioned form
AASHTO T 104 Soundness of Aggregate
2. The check can be used while facts isn't to be had from exposure to actual situations. True or
False? - ANS-True
AASHTO T 104 Soundness of Aggregate
20. Match the following descriptions and figures:
1. 20.Three to 21.Nine °C (sixty eight.Five to 71.5 °F)
2. 9.5 mm
three. 4.75 mm
four. 110 ± five °C (230 ± nine °F)
five. 43 ± 6 °C (110 ± 10 °F)
6. 19.Zero mm (three/four in.)
a. Temperature had to dry samples to constant weight
b. Temperature of the answer wherein samples are immersed
, c. Temperature of water which washes off sulfate solutions before quantitative examination
d. Length of No. 4 sieve checking out coarse aggregate
e. Size of 3/eight in. Sieve checking out nice mixture
f. Samples coarser than this length are difficulty to a qualitative examination. - ANS-1) 20.Three
to 21.9 °C (68.5 to seventy one.5 °F)
b. Temperature of the answer wherein samples are immersed
2) nine.5 mm
e. Length of three/eight in. Sieve checking out fine combination
3) 4.Seventy five mm
d. Length of No. 4 sieve checking out coarse mixture
four) one hundred ten ± 5 °C (230 ± 9 °F)
a. Temperature needed to dry samples to consistent weight
five) forty three ± 6 °C (110 ± 10 °F)
c. Temperature of water which washes off sulfate answers before quantitative exam
6) 19.Zero mm (three/4 in.)
f. Samples coarser than this size are concern to a qualitative examination.
AASHTO T 104 Soundness of Aggregate
three. The procedure involved simulates the enlargement of ________ when it _________. -
ANS-Water; freezes
AASHTO T 104 Soundness of Aggregate
4. Results using the two salts (sodium and magnesium sulfate) are commonly pretty similar.
True or False? - ANS-False; they fluctuate appreciably
AASHTO T 104 Soundness of Aggregate
5. The stable quantity of the samples which might be immersed within the salt solution have to
be five instances the quantity of the solution. True or False? - ANS-False; the quantity of the
solution need to be 5 instances the volume of the samples.
AASHTO T 104 Soundness of Aggregate
6. For a sodium sulfate solution, 215 g of anhydrous salt or in keeping with liter of water is
recommended. True or False? - ANS-False; that is sufficient for saturation, but the use of now
not less than 225g is recommended.
2
AASHTO T 104 Soundness of Aggregate
1. The cause of this test is to estimate the __________ of aggregates whilst uncovered to
_________ moves. - ANS-Soundness; weathering
AASHTO T 104 Soundness of Aggregate
10. Test and report very first-rate and very coarse samples ___________ from the rest when
they each exist in the mixture to be examined. - ANS-Separately
AASHTO T 104 Soundness of Aggregate
eleven. Use the nest of sieves specified in 5.1 and five.2 to split the ____________ samples. -
ANS-Graded
AASHTO T 104 Soundness of Aggregate
12. Samples have to be immersed in the answer, protected to a intensity of at the least
__________ for not less than _________ nor more than __________. - ANS-12.5 mm (1/2 in.);
16 hours; 18 hours
AASHTO T 104 Soundness of Aggregate
13. Which of the subsequent steps are covered (as said right here) in the take a look at
technique:
(a) samples are immersed inside the answer;
(b) samples are drained for 15 ± 5 min.;
(c) samples are dried in an oven at 230 ± nine °F;
(d) samples are cooled to room temperature. - ANS-a, b, c, d
AASHTO T 104 Soundness of Aggregate
14. Constant weight is while the weight loss is less than zero.1% of the pattern weight after four
hours of drying. True or False? - ANS-True
AASHTO T 104 Soundness of Aggregate
,15. The pattern is decided to be freed from sodium or magnesium sulfate when the wash water
attains the identical degree of cloudiness as tap water when dealt with with ______________ -
ANS-Barium Chloride
AASHTO T 104 Soundness of Aggregate
sixteen. Following the various steps within the system, two examinations need to be conducted:
the ___________ exam and the ___________ exam. - ANS-Quantitative; qualitative
AASHTO T 104 Soundness of Aggregate
17. In the first exam for coarse aggregates, _____________ have to be by way of hand. -
ANS-Sieving
AASHTO T 104 Soundness of Aggregate
18. Examples of numerous sorts of motion produced by way of the check include:
____________, _____________, ____________, ___________, ___________. -
ANS-Disintegration, splitting, crumbling, cracking, flaking
AASHTO T 104 Soundness of Aggregate
19. No suggested form for recording take a look at statistics is covered. True or False? -
ANS-False; Table 1 is a cautioned form
AASHTO T 104 Soundness of Aggregate
2. The check can be used while facts isn't to be had from exposure to actual situations. True or
False? - ANS-True
AASHTO T 104 Soundness of Aggregate
20. Match the following descriptions and figures:
1. 20.Three to 21.Nine °C (sixty eight.Five to 71.5 °F)
2. 9.5 mm
three. 4.75 mm
four. 110 ± five °C (230 ± nine °F)
five. 43 ± 6 °C (110 ± 10 °F)
6. 19.Zero mm (three/four in.)
a. Temperature had to dry samples to constant weight
b. Temperature of the answer wherein samples are immersed
, c. Temperature of water which washes off sulfate solutions before quantitative examination
d. Length of No. 4 sieve checking out coarse aggregate
e. Size of 3/eight in. Sieve checking out nice mixture
f. Samples coarser than this length are difficulty to a qualitative examination. - ANS-1) 20.Three
to 21.9 °C (68.5 to seventy one.5 °F)
b. Temperature of the answer wherein samples are immersed
2) nine.5 mm
e. Length of three/eight in. Sieve checking out fine combination
3) 4.Seventy five mm
d. Length of No. 4 sieve checking out coarse mixture
four) one hundred ten ± 5 °C (230 ± 9 °F)
a. Temperature needed to dry samples to consistent weight
five) forty three ± 6 °C (110 ± 10 °F)
c. Temperature of water which washes off sulfate answers before quantitative exam
6) 19.Zero mm (three/4 in.)
f. Samples coarser than this size are concern to a qualitative examination.
AASHTO T 104 Soundness of Aggregate
three. The procedure involved simulates the enlargement of ________ when it _________. -
ANS-Water; freezes
AASHTO T 104 Soundness of Aggregate
4. Results using the two salts (sodium and magnesium sulfate) are commonly pretty similar.
True or False? - ANS-False; they fluctuate appreciably
AASHTO T 104 Soundness of Aggregate
5. The stable quantity of the samples which might be immersed within the salt solution have to
be five instances the quantity of the solution. True or False? - ANS-False; the quantity of the
solution need to be 5 instances the volume of the samples.
AASHTO T 104 Soundness of Aggregate
6. For a sodium sulfate solution, 215 g of anhydrous salt or in keeping with liter of water is
recommended. True or False? - ANS-False; that is sufficient for saturation, but the use of now
not less than 225g is recommended.
