Bitumen Content Testing

ANALYSIS OF COMPACTED ASPHALT MIXTURE

1 2 3

1247 1245 1243.5

735.5 735 734.5

1248 1246 1244.5

512.5 511 510

2.433171 2.436399 2.438235

1.029

3.95

CALCULATIONS FOR MIX PARAMETERS Ok No

Result

5.581 4 6

14.793

3.897 -

62.271 55 70

1602.000

2.747 2 4

Specification

13

96.050

1200

% of bitumen in mix 3.95 % of aggregate in mix

fiow (mm)

Voids in mix (VIM) VIM = 100 - ((100*GMB)/Gmm) (%)

Voids in mineral aggregate (VMA) VIM = 100 - ((%agg*Gmb)/(Gsb)) (%)

Effective bitument content (Pbs) Pbc = Pb - (Pba*%agg)/(100) (%)

Voids filled with bitumen (VFB) VFB = ((Pba*Gmb)/(Gs))/(VMA) (%)

Stability (kg)

Bulk specific gravity of compacted mixture (Gmb) - (ASTM D2726)(g/cc)

Bulk specific gravity of speciment -(W1/(W3-W2)) (g/cc)

Volime of speciment - W3-W2 (gms)

0.055

2.436

2.746

2.580

Bitument Absorption (Pba) Pba=100 * ((Gse-Gsb)/(Gse*Gsb)) * Gb

Weight of Surface - dry Speciment in Air - W3(gms)

Weight of Speciment in Water - W2(gms)

Weight of Speciment in Air - W1(gms)

2.750

Maximum specific gravity of paving mixture (Gmm) - (ASTM D2040)

-(Gse=((100-Pb)/((100/Gmm)-(Pb/Gb)))

Effective specific gravity of totalaggregate (Gas)

(Gb=specific gravity of bitumen)

(Pb=Total percent bitument by weight of mix)

Bulk specific gravity of total aggregate (Gsb)

DETERMINATION OF MARSHALL STABILITY AND FLOW VALUE

initial end

----------- mm mm mm 4.5 kg ------------ kg kg mm

1 0.85 3.60 2.75 353.00 1588.50 1.00 1588.50

2 0.95 3.75 2.80 367.00 1651.50 1.00 1651.50

3 1.00 3.69 2.69 348.00 1566.00 1.00 1566.00

4 0.00 0

5 0.00 0

6 0.00 0

7 0.00 0

8 0.00 0

1602 2.746667

Factor of

correction

Max load

correction

Marshall

Stability

average

Flow

value

average

Sample NoGauge reading Flow

value

single

Max load

Maximum specific gravity of bituminous paving mixture (Gmm) - AASHTO (T-209-82)

Sr No 1 2

1 703 1

2 2365.5 1

3 2796 1

4 2.580 1MAXIMUM SPECIFIC GRAVITY (Gmm)………………………………...…..A/(A+B-C)

DESCRIPION

MASS OF DRY SAMPLE IN AIR ………………………………….….……..A

MASS OF FLASK FILLED WITH WATER (gm)…………………...……….B

MASS OF FLASK FILLED WITH WATER & SAMPLE (gm)……..……….C

1

2

3

4

5

6

7

8

9

25.0

19.0 51.5 3.04 96.96 90 100 91 100 Ok

9.5 490.8 29.00 71.00 56 80 63 73 Ok

4.75 775.3 45.80 54.20 35 65.00 45.00 58.00 Ok

2.30 1075.1 63.51 36.49 23 49.00 32.00 38.00 Ok

1.18

0.60

0.30 1547.6 91.43 8.57 5 19.00 7.00 13.00 Ok

0.15

0.075 1625.7 96.04 3.96 2 8 3 6 Ok

Spec. % PassingRemarks

(JMF)Result

BITUMEN CONTENT % = (8/1*100)

Bitumen Content of Paving Mixture by Centrifuge Method

Sieve

M.M

Cum. Wt.

Retd

Cum. %.

Retd

Percent

Passing

SIEVE ANALIYSIS

WEIGHT OF FILTER PAPER AFTER TEST (gm)

WEIGHT OF FILTER = (5-4) (gm)

WEIGHT OF TOTAL DRY MINERAL AGGREGATE BEFORE WASHING = (2+3+6) (gm)

WEIGHT OF BITUMEN = (1-7) (gm)

WEIGHT OF SAMPLE BEFORE EXTRACTION (gm)

WEIGHT OF SAMPLE AFTER EXTRACTION (gm)

WEIGHT OF ASH (gm)

WEIGHT OF FILTER PAPER BEFORE TEST (gm)

0

10

20

30

40

50

60

70

80

90

100

1762.40

1651.00

262.80

304.50

41.70

1692.70

69.70

3.95


1

2

3

4

5

6

7

8

9

25.0

19.0 58.5 3.91 96.09 90 100 91 100

9.5 427.1 28.58 71.42 56 80 63 73

4.75 685.9 45.89 54.11 35 65.00 45.00 58.00

2.30 980.1 65.58 34.42 23 49.00 32.00 38.00

1.18

0.60

0.30 1363.1 91.20 8.80 5 19.00 7.00 13.00

0.15

0.075 1427.3 95.50 4.50 2 8 3 6



SIEVE ANALIYSIS

Sieve

M.M

Cum. Wt.

Retd

Cum. %.

Retd

Percent

PassingSpec. % Passing

Remarks

(JMF)








WEIGHT OF ASH (gm)

0

10

20

30

40

50

60

70

80

90

100

1556.30

1462.80

262.80

294.60

31.80

1494.60

61.70

3.96

Ok

Ok

Ok

Ok

Ok

Ok



SIEVE ANALIYSIS

Result








WEIGHT OF ASH (gm)

Documents

Bitumen Content Testing