labsheet marshall test

JABATAN KEJURUTERAAN AWAMBEG BERKUNCI 3094,KM. 22, JALAN MATANG,93050 KUCHING,SARAWAK.www.poliku.edu.my

PRACTICAL NO. : __________________________

TITLE : MARSHALL TEST

DEPARTMENT : _______________________________________

PROGRAMME : _______________________________________

COURSE CODE : _______________________________________

COURSE NAME : _______________________________________

SESSION : _______________________________________

LECTURER’S NAME: (1) PUAN NORIZAN BINTI MASLLEH (2)

0 : _______________________________________

REGISTRATION NO. : _______________________________________

GROUP MEMBERS

: (1) _______________________________________ (2) _______________________________________

(3) _______________________________________

(4) _______________________________________

DUE DATE : _______________________________________

RETURN DATE : _______________________________________

MARKS

Civil Engineering Department, Kuching Polytechnic

Course:CC302 Highway EngineeringTitle: MARSHALL TEST

1.0 INTRODUCTION

Before any asphalt mixes can be placed and laid on the road, the aggregate and the binder types are

generally screened for quality and requirement. Approximately 15 samples are required Optimum Asphalt

Content (OAC). The prepared samples are to be analyzed for bulk density, air void and stability. By using the

Asphalt Institute Method, the Optimum Asphalt Content are determined from the individual plots of bulk

density, voids in total mix and stability versus percent asphalt content. The average of the 3 OAC values is

taken for further sample preparation and analysis.

2.0 OBJECTIVES

At the end of the experiment, student should be:

a) To prepare standard specimens of asphalt concrete for the determination of the optimum asphalt content

based upon ASTM D 1559, "Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus."

b) To determine the combination of bitumen and aggregates that will give durable road surfacing.

3.0 APPARATUS

a) Marshall compactor

b) Mixer

c) Water Bath

d) Marshall Compression Machine

e) Marshall Mould

f) Sieve Shaker

g) Oven


Course:

CC302 Highway Engineering

Title: MARSHALL TEST

4.0 PROCEDURE

a) PREPARATION OF THE TEST SPECIMENS

1. The aggregate (about 1200g), graded according to the ASTM standard are over dried at 170 - 180 0C (not

more than 2800C ).

2. The required quantity of asphalt is weighed out and heated to a temperature of about 150 - 165 0C.

3. The thoroughly cleaned mould is heated on a hot plate or in an oven to a temperature 100 - 145 0C. The

mould is 101.6mm diameter by 76.2mm high and provided with a base plate and extension collar.

4. A crater is formed in the aggregate, the binder poured in and mixing carried out until all the aggregate is

coated. The mixing temperature shall be within the limit set for the binder temperature.

5. A piece of filter paper is fitted in the bottom of the mould and the whole mix poured in three layers. The mix

is then vigorously trowel 15 times round the perimeter and 10 times in the center leaving a slightly rounded

surface.

6. The mould is placed on the Marshall Compactor (Figure 1) and given 50 blows.

7. The specimen is then carefully removed from the mould and then marked (Figure 2).

Figure 1: Marshall Hammer Figure 2: Marshall Samples



b) BULK SPECIFIC GRAVITY OF THE MIX

1. Weight the specimen before test (A).(Figure 3)

2. The specimen is immersed in a 25±1 °C water bath and saturated at 4±1 minutes (Figure 4).

3. The specimen is then, placed in a basket and its mass is determined to nearest 0.1 g while immersed in

water at 25 ±1 °C (C).

4. The immersed saturated specimen is removed from the water bath and damp dried with a damp absorbent

cloth as quickly as possible. The specimen is then weighted, (B). Any water that seeps from the specimen

during the weighing operation is considered as part of saturated specimens.

Figure 3: Measure and weight dry specimen

Figure 4: Specimen in bath



c) Marshall Stability and Flow of Bituminous Mixture

1. Three specimens, prepared according to the Standard, are immersed in a water bath for 30 to 40 minutes

or in an oven for 2 hours at 60 ± 1.0 0C.

2. The testing heads and guide rods are thoroughly cleaned, guide rods lubricated and head maintained at a

temperature between 21.1 and 37.8 0C.

3. A specimen is removed from the water bath or oven, placed in the lower jaw and the upper jaw placed in

position. The complete assembly is then placed in the Marshall Stability and flow machine (Figure 5) and

the flow meter adjusted to zero.

4. The load is applied to the specimen at a constant strain rate of 50.8 mm/min until the maximum load is

reached. The maximum force and flow at that force are read and recorded. The maximum time that’s

allowed between removal of the specimens from the water bath and maximum load is 30 second.

Figure 5: Marshall Stability and Flow Machine



Table 1.1: The Aggregate Grading for Size 20mm

BS Sieve(mm)

ACW20Midpoint ACW20% passing

ACW 20%retained

Weight(g)

Accumulateweight

(g)37.5 - - - - -28 100 100 0 0 020 76-100 88 12 136.2 136.214 64-89 76.5 11.5 130.5 266.710 56-81 68.5 8 90.8 357.55 46-71 58.5 10 113.5 471

3.35 32-58 45 13.5 153.2 624.21.18 20-42 31 14 158.9 783.10.425 12-28 20 11 124.9 9080.150 6-16 11 9 102.2 1010.20.075 4-8 6 5 56.7 1066.9Pan 0 0 6 68.1 1135

Total weight of aggregates = 1135 gFiller (2%) = 22.7 gWeight of aggregates + Filler = 1157.7 g

Table 1.2: Percentage of Binder

Binder (%) Wt. of Binder (g) Total Weight (g)

4.50 54.6 1212.3

5.00 61.1 1218.7

5.50 67.4 1225.1

6.00 74 1231.7

6.50 80.5 1238.2

The calculation of Binder Content (BC);

Binder Content, B.C (g) = B.C(%) x 1157.7 100 – B.C. (%)


Course:CC302 Highway Engineering

Title: MARSHALL TEST

6.0 Analysis of Results Based on Marshall Test Result, plot the graph as stated below:

a. Bulk S. G vs Binder Content.

b. Air voids vs Binder Content.

c. VFA (%) vs Binder Content.

d. Marshall Stability vs Binder Content.

e. Marshall Flow vs Binder Content.

7.0 Discussion

8.0 Conclusion

9.0 References

5.0 MARSHALL TEST RESULTTable Marshall Properties For Penetration Grade 80/100

S.G. Aggregate : 2.631

S.G. Bitumen : 1.01

No. Sampel

Binder (%)

Height(mm)

Weight in (g) Bulk Volume (cm3)

Spec. Gravity Volume of

Bitumen (%)

Void (%) BulkSG

(mg/m3)

Stability (N) Flow 0.25mm (0.01in)Air water Bulk Theory VTM VFA VMA

Meas (Kn)

FactorCorr (Kn)

a b c d e f g h i j k l m n o n x o = p q(d – e) (d / f) * (bg/gac) (100 –100g/h) [i/(i+j)] (I + j) (g x 1.0)

1

4.50

63.19

1193.8

694.2

21.52

3.0

2 64.24

1207.7

694.3

21.41

2.2

3 63.39

1158.4

670.4

21.10

2.1

Average

20.52

2.9

1

5.00

64.2 1211.7

702.4

20.44

3.2

2 63.81

1207.2

701.5

20.67

2.8

3 63.44

1207.5

702.1

Average

1

5.50

63.79

1219.1

706.4

17.93

3.6

2 63.67

1206.4

705.7

16.87

3.0

3 63.75

1206.5

703.5

17.78

2.7

Average

1 6.00 63.96

1211.1

706.2

16.47

3.6

2 63.60

1220.0

702.3

16.44

4.0

3 63.40

1208.5

705.2

16.29

3.5

Average

1

6.50

62.66

1206.5

701.2

14.21

4.5

2 64.76

1210.7

702.1

13.09

3.7

3 63.52

1218.2

704.2

12.78

1.8

Average

* Max Theory of Specific Gravity =

Jadual 1.3: Nisbah Sekaitan Kestabilan

Isipadu Spesimen(cm3)

Tebal Hampir Spesimen(mm)

Nisbah Kaitan

200 – 213 25.4 5.56214 – 225 27.0 5.00226 – 237 28.6 4.55238 – 250 30.2 4.17251 – 264 31.8 3.85265 – 276 33.3 3.57277 – 289 34.9 3.33290 – 301 36.5 3.03302 – 316 38.1 2.78317 – 328 39.7 2.50329 – 340 41.3 2.27341 – 353 42.9 2.08354 -367 44.4 1.92368 – 379 46.0 1.79380 – 392 47.6 1.67393 – 405 49.2 1.56406 – 420 50.8 1.47421 – 431 52.4 1.39432 – 443 54.0 1.32444 – 456 55.6 1.25457 – 470 57.2 1.19471 – 482 58.7 1.14483 – 495 60.3 1.09496 – 508 61.9 1.04509 – 522 63.5 1.00523 – 535 64.0 0.96536 – 546 65.1 0.93547 – 559 66.7 0.89560 – 573 68.3 0.86574 – 585 71.4 0.83586 – 598 73.0 0.81599 – 610 74.6 0.78611 – 625 76.2 0.76

http://www.google.com.my/search?aq=2&oq=marshall&sourceid=chrome&ie=UTF-8&q=marshall+test

http://www3.ntu.edu.sg/cts/tlab/007.pdf

http://www.ahm531.com/lab-reports/highway-lab/reports/1/Marshall%20Test%20&%20Extraction%20&%20Stripping%20&%20Specific%20Gravity.pdf



http://www3.ntu.edu.sg/cts/tlab/007.pdf



labsheet marshall test

Documents

civil engineering

marshall test

bulk density

binder content

kuching polytechnic

marshall stability

maximum load

water bath