Download - ME136P Experiment 5
EXPERIMENT NO. 5SIEVE ANALYSIS OF AGGREGATES
OBJECTIVESTo determine the grade of aggregates through ASTM C136
DISCUSSION OF PRINCIPLESSieve analysis commonly known as the Gradation Test consists of determining the particle size distribution of fine aggregates, coarse aggregates, and mixtures of fine and coarse aggregates. This is accomplished by pouring an aggregate sample through a series of decreasing size sieves and weighing the amount of material retained on each sleeve.The size of an aggregate sieve is designated by the number of meshes to the linear inch in that sieve. The higher the number, the finer the sieve. Any material retained on the No. 4 sieve can be considered either coarse or fine. Aggregates larger than No. 4 are all coarse; those smaller are all fines. No. 4 aggregates are the dividing point. The finest coarse-aggregate sieve is the same No 4 used as the coarsest fine-aggregate sieve. With this exception, a coarse-aggregate sieve is designated by the size of one of its openings. The sieves commonly used are 1 inches, inch, inch, 3/8 inch, and No. 4. Any material that passes through the No. 200 sieve is too fine to be used in making concrete.
PROCEDURES (FINE AND COARSE AGGREGATES)Tick each step if it has been performed
____1.1 Dry the aggregate sample at a temperature of 105 +/- 5 C____1.2 Weigh 1000 grams of aggregate sample.____1.3 Put the sieves in order of decreasing size of opening.Note: Start from the top part.Sieves Nos. 3/8, 4, 8, 16, 30, 50, 100, 200 for fine aggregatesSieves Nos. 4, 3/8, , , 1 1 , 2, 2 , 3, 3 , and 6 for coarse aggregates____1.4 Put the aggregate sample on top of the sieve pan.____1.5 Perform sieving operation using the rotary sieve shaker.Note: Ask for assistance to laboratory personnel.____1.6 Continue the sieving until not more than 1 % by weight of the residue passes any sieve during 1 minute.____1.7 Remove the sieves from the rotary sieve shaker.____1.8 Determine the weight of the residue contained on each sieve.____1.9 Calculate the percentage passing on the basis of the total weight of the sample.____1.10 Calculate and determine the fineness modulus.
Calculations:
Standards Limitations (for fine aggregates)Sieve Percent Passing Specification
Sieve No.Percent Passing by Weight Requirement
3/8 = 0.375100
4 = 0.18795-100
8 = 0.093780-100
16 = 0.046950-85
3025-60
5010-30
1002-10
Note: Table based on ASTM C-136b. Fineness modulus should neighter exceed 3.1 nor less than 2.3Standards Limitations (for coarse aggregates)Note: Table Based on ASTM C-136
b. Value of fineness modulus should remain between 5.5 and 7.5
APPARATUS 1. Set of standard sieves nos. 3/8, 4, 8, 16, 30, 50, 100, 200 for fine aggregates2. Set of standard sieves nos. 4, 3/8, , , 1, 1 , 2, 2 , 3, 3 , and 6 for coarse aggregates3. Sieve pan4. Sieve cover5. Oven with temperature control6. Balance and weights
SET UP OF APPARATUS
1 Aggregates 4 Sieve Pan 2 Pan Lock 5 Column 3 Pan Cover 6 Sieve Shaker
Fig. 5-1 Sieve Analysis
Engineering Materials and Testing Laboratory
Experiment No. 5
Sieve Analysis of Fine and Coarse Aggregates
Preliminary Data Sheet
Name: Festin, Daniel Joshua N.Date: May, 26, 2015
Section: B3Group No.: 2
A.) Fine Aggregates
Original weight:1150 gMoisture content: 15
Over dry weight: 1000 gFineness modulus: 1
Sieve No.Weight retainedWeight passingCumulative retainedCumulative passing% Passing specsRemarks
3/8NoneNone100
411582412.247187.752995-100Fail
8727527.667780.0852
1612662613.418566.666745-80Pass
3024737926.304640.3621
5024213725.772114.5910-30Pass
1001201712.77961.81042-10Fail
2001431.49090.3195
WASH
PAN300.31950
TOTAL939100
Assisted by:Vergel S. RodriguezME-UTM EngineerApproved by:Engr. F. GaleraInstructor
Engineering Materials and Testing Laboratory
Experiment No. 5
Sieve Analysis of Fine and Coarse Aggregates
Preliminary Data Sheet
Name: Festin, Daniel Joshua N.Date: May, 26, 2015
Section: B3Group No.: 2
B.) Coarse Aggregates
Original weight: 1031 gMoisture content: 3.1
Over dry weight: 100000 gFineness modulus: 1
Sieve No.Weight retainedWeight passingCumulative retainedCumulative passing% Passing specsRemarks
3/834864635.010164.9899100Fail
45539355.63389.356195-100Fail
861326.13683.2193
167250.70422.515145-80Fail
302230.20122.3139
503200.30182.012110-30Fail
1005150.5031.50912-10Fail
200
WASH
PAN1501.50910
TOTAL994100
Assisted by:Vergel S. RodriguezME-UTM EngineerApproved by:Engr. F. GaleraInstructor
QUESTIONS1. What are the main purposes of Sieve Analysis of Aggregates? .
2. Discuss Fineness of Modulus..
3. What are the difference between coarse aggregates coming from processing plants and coarse aggregates obtained underwater in rivers?
4. What is Gradiation? .
5. What is Effective Size?.
SAMPLE COMPUTATION (use another sheet of paper; engineering lettering)
DISCUSSION (use another sheet of paper; engineering lettering)
CONCLUSION (use another sheet of paper; engineering lettering)
RECOMMENDATION (use another sheet of paper; engineering lettering)
REFERENCES (use another sheet of paper; engineering lettering)
7 Festin, Daniel Joshua N.
2013103308