PROPERTIES OF MATERIAL EXPERIMENTAL REPORT EXAMINATION OF

SUBSTANCES AND QUALITY OF CONCRETE

MODULE 4

EXAMINATION OF FINE AGGREGATE

KELOMPOK 31

Danny Tirta Winata 1306437025

Sabrina Nurul Hidayah 1306437145

Daniel Andiga Wibisana 1306437076

Ahmad Haekal 1306437151

Date of Experiment : October 3 and 5, 2013

Experiment Assistant : Suryo Wijiono

Date of Approval :

Score :

Assistant’s Signature :

LABORATORY OD STRUCTURE AND MATERIAL

CIVIL ENGINEERING DEPARTEMENT

ENGINEERING FACULTY

UNIVERSITAS INDONESIA

DEPOK 2013

EXAMINATION OF MOISTURE CONTENT OF FINE AGGREGATE

I. Objective

This experimental work is intended to determine the total number of material in aggregate

passing through sieve No. 200 with washing process.

II. Material

MAXIMUM GRAIN SIZE OF

AGGREGATE

MINIMUM SIZE OF DRIED

AGGREGATE SAMPLE

(mm) (inch) (gram)

2,36 Sieve No. 8 100

1,18 Sieve No. 4 500

9,5 ¼ 2000

19,1 ¾ 2500

38,1 1 ½ 5000

III. Apparatus

1. Sieve No. 16 and No. 200.

2. Large capacity of water bath container, so during the manual shacking process, water will

not spill out of it.

3. Oven with temperature adjustment to heat up the specimen up to (110 ± 5) ºC of

temperature.

4. Scale/balance with 0,1% of sample weight accuracy.

5. Large capacity of tray to dry the specimen.

IV. Procedure

1. The aggregate is put in the oven for 24 hours

2. Pour the aggregate and water into a set of Sieve of No. 16 and No. 200 and shake gently.

3. Keep pouring water until the washing water is cleared.

4. Put back all the retained materials in Sieve No. 16 and No. 200 to the container; place the

specimen onto a tray which is already measured.

5. The fine aggregate is then dried using an oven for 24 hours.

6. After that, the weight of the dried specimen is measured.

V. Observation and Data Calculation

Total weight of fine aggregate = 500 gram s(w1)

Weight of container = 150 grams (w2)

Weight of dried fine aggregate and container = 613 grams (w3)

Weight of dried fine aggregate (w4) = (w3 – w2) = 613 – 150 = 463 grams

Material Passed Sieve No .200=(weight of fine aggregate – weight of dried fine aggregate )

weight of fine aggregate×100 %=

(500−463 )500

×100 %=7.4 %

VI. Experimental Analysis

i. Analysis of Experiment

The examination of fine aggregate is done to find the percentage of fine aggregate that

passed Sieve No. 200. The method used in this examination is filtering and washing. The

aggregate is filtered through Sieve No. 200. The fine aggregate for this examination is

obtained from a pile of mixed aggregate that is located outside the laboratory. The day

before the examination, the fine aggregate is placed in the container to be put in the oven

for 24 hours. After 24 hours, 500 grams of fine aggregate is taken from the container to

be filtered. Then, a set of Sieve of No. 16 and No. 200 is prepared. The fine aggregate is

poured into the set of sieve. Water is also poured into the sieve to help the fine aggregate

to pass through the set of sieve. To further help the process of filtering, hands are also

used to create motion and force the water to pass through the sieve. The method of

shaking the set of sieve gently is also used to aid the filtering process. The water is

poured through the sieve until the color of the water is clear again. After that, all the

materials that are retained in the set of sieve is placed in a new container whose weight is

already measured. In this examination, the weight of the container is 150 grams. The

container containing the retained material is then put in the oven to be dried for 24 hours.

At the end of 24 hours, the weight of the dried fine aggregate is measured. Based on the

data collected, the weight that is measured is 613 grams including the weight of the

container. So the pure weight of the dried fine aggregate is calculated by subtracting the

weight of dried fine aggregate and container (613 grams) by the weight of the container

(150 grams). According to the calculation, the weight of the dried fine aggregate is 463

grams. At this point, all the data that is needed to calculate the percent of material that

passed Sieve No. 200 is collected.

ii. Result Analysis

To find the percentage of material that passed Sieve No. 200, the weight of dried fine

aggregate is divided by the weight of the initial fine aggregate before the sieve and then

the result is multiplied by 100 percent. Based on this experiment, the weight of dried fine

aggregate is 463 grams and the weight of initial fine aggregate is 500 grams. By

substituting these numbers into the equation, the result that is obtained is 7.4 %.

iii. Error Analysis

1. Students can cause an error while pouring the water to filter the aggregate through the

sieve. The water that is not carefully poured can hit some of the fine aggregate out of

the sieve and fall on the ground and will become useless in the examination.

2. When students use their hands to shake and mix the aggregate to pass through the

sieve, some of it may stick on their hands and be washed out. This also will cause a

loss in aggregate.

VII. Conclusion

According to this examination and based on the data collected, 7.4% of 500 grams of

aggregates passed through Sieve No. 200.

VIII. References

American Society for Testing and Materials. “Standards Test Method for Materials

Finer than 75 µm (No. 200) Sieve in Minerals Aggregate by Washing”, No.

ASTM C 117 - 04. Annual Book of ASTM Standards, Vol. 04.02.

Badan Standarisasi Nasional. “Metode Pengujian Jumlah Bahan dalam Agregat yang

Lolos Saringan Nomor 200 (0,075 mm)”, SNI 03-4142-1996.