Fiber Mastic Asphalt Technology
Transcript of Fiber Mastic Asphalt Technology
Fiber Mastic Asphalt Technology
“A Novel Material For More Resilient Roads”
Professor Ir. Dr. Ratnasamy Muniandy
Department of Civil Engineering Universiti Putra Malaysia
15 April 2021
NOVEL CHARACTERISTICS OF FIBER MASTIC ASPHALT
1. Characterization of cellulose fibers
2. Performance of cellulose fibers in asphalt mixtures
3. Trial Lay Assessments
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CHARACTERIZATION OF CELLULOSE OIL PLAM FIBERS
1. Processing Techniques 2. Scanning Electron Microscope Analysis3. Binder Retention and Dispersion Potential of Cellulose
palm fibers
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BINDER RETENTION POTENTIAL OF CELLULOSE PALM FIBERS
• Table : Summary of Drain-down Results of Cellulose Fibers
Pulping Process Percent retaining Percent drain-down
TMP
RMP
Chemical
TMP-R
RMP-R
Chemical –R
42
56
67.6
61.4
75.4
77.6
58
44
32.4
38.6
24.6
22.4
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BINDER DRAIN-DOWN POTENTIAL CELLULOSE OIL FIBERS
0
5
10
15
20
25
30
35
40
45
% M
oto
r O
il D
rain
-do
wn
Time, sec
chem Chem-R RMP-R TMP-R
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FIBER DISPERSION PROPERTIES
R² = 0.9931
R² = 0.6577
0
0.5
1
1.5
2
2.5
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
spec
tral
ab
sorb
ance
Percent fiber
Poly. (Cumulative disp) Poly. (change in disp)
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Material Sepcifications
Coarse Aggregate >70%
Bitumen 60-70 PEN
Bitumen Content 5.0% – 6.5%
FillerLimestone Powder,
Ceramic Dust,Reclaimed Dust, Cement (max 2%)
AdditiveFiber : 0.4% - 0. 6% (by weight of
aggregate)
FMA DESIGN PARAMETERS
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SIEVE SIZE F M A 2 0 F M A 1 4
20 - -19 100 -14 - 100
12.5 85-95 90-9510 - -9.5 65-77 75-855 - -
4.75 18-31 25-353.35 - -2.36 16-23 17-231.18 - -0.6 10-15 10-17
0.425 - -0.3 10-13 6-15
0.15 - -0.075 8-11 7-10
FMA TAILORED GRADATIONS
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CELLULOSE FIBER SPECIFICATIONS
TEST PARAMETERS TEST METHOD SPECIFICATIONS
Mesh Screen Analysis, % JKR/SPJ/2008-S4
- Passing 850µm 85% (± 10%)
- Passing 425µm 65% (± 10%)
- Passing 106µm 30% (± 10%)
Ash Content, % JKR/SPJ/2008-S4 10% (± 5%) non-volatiles
pH Value (10% suspension) JKR/SPJ/2008-S4 7.5 (± 1.0)
Oil Absorption JKR/SPJ/2008-S45.0 (± 1.0) times greater
from the fiber weight
Moisture Content, % JKR/SPJ/2008-S4 < 5% (by weight)
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Spray Rate of Tack Coat 0.35 to 0.55 litre/sq.m
Equipment for CompactionSteel Wheel Tandem Roller (10-12 ton)
Pnuematic rollers- not required
Compaction TemperatureCompaction process shall be completed
at temperature145-165 °C
Open to Traffic 60°C or lower
FMA- CONSTRUCTION METHOD
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FIBRE MASTICASPHALT.
THE CONCEPT
FIBRE MASTIC ASPHALT
2. IMPROVEDAGGREGATES
3. NORMAL60/70 BITUMEN
4. SIMPLIFIEDMETHODOLOGY
1. FIBRE ADDITIVES
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RESILIENT AND COST EFFECTIVE TECHNOLOGY
Characteristics Fiber Mastic Asphalt
Density The normal target in-place density on an asphalt pavement is 95 to 97 percent
of Theoretical Maximum Density (TMD),or 3 to 5 percent air voids
Resilient Modulus >3500 MPa
Stability Min. 8000 N
Flow 2.0 – 4.0 mm
Draindown (mix) Max. 0.3%
VTM (Voids in Total Mix) 3.0 – 5.0%
VFB (Voids in Aggregates Filled withBitumen)
75% - 85%
VMA (Voids in Mineral Aggregate) Min. 17%
PERFORMANCE REQUIREMENT
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STABILITY RESULTS
Sample Stability (N) Requirement (N)
SENAI DESARU EXPRESSWAY(2019 -2020)
MIN 8,000
Trial Lay 15,230
28 July 2020 Lay (KM16.7-17.5)
10,130
4 August 2020 Lay (KM16.7-17.5)
11,490
9 August 2020 Lay (KM3.9-KM.8)
18,460
4 September 2020 (KM0.3) 13,850
7 September 2020 (KM5.3) 15,340
9 September 2020 (KM4.4) 13,400
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RESILIENT MODULUS
Sample Resilient Modulus (MPa) Requirement (MPa)
SENAI DESARU EXPRESSWAY(2019 -2020)
MIN. 3,500
Trial Lay 4,434
28 July 2020 Lay (KM16.7-17.5)
4,410
4 August 2020 Lay (KM16.7-17.5)
4,950
9 August 2020 Lay (KM3.9-KM.8)
6,193
4 September 2020 (KM0.3) 6,721
7 September 2020 (KM5.3) 6,926
9 September 2020 (KM4.4) 5,786
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EXCELLENT RESULTS
OTHER TYPES FMA SPECIFICATIONS SDE RESULTS
STABILITY - STRENGTH
RESILIENT MODULUS -DURABILITY
8,000 N
3,500 MPa
13,945 N
+124.92% (74.31%)
5,631 MPa
+125.24%
(+60.89%)
6,200 N
*2,500 MPa
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