Q3 A rheology test has been conducted on asphalt binder to investigate the relationship between test temperature and complex modulus (G*). The results from the tests are shown in Table Q3. (a) Determine a relationship between temperature and log G*. (b) Calculate and interpret R2 in term of the model variables. (c) Estimate the failure temperature of the bitumen if the failure temperature is carried out from the temperature when complex modulus is 2.2 kPa.
Q3 A rheology test has been conducted on asphalt binder to investigate the relationship between test temperature and complex modulus (G*). The results from the tests are shown in Table Q3. (a) Determine a relationship between temperature and log G*. (b) Calculate and interpret R2 in term of the model variables. (c) Estimate the failure temperature of the bitumen if the failure temperature is carried out from the temperature when complex modulus is 2.2 kPa.
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
Transcribed Image Text:Table Q3: Complex modulus of the bitumen
Test temperature
(°C)
Complex modulus, G*
(kPa)
Log G*
46
52.2
1.72
52
24.52
1.39
58
10.99
1.04
64
5.32
0.73
70
2.55
0.41

Transcribed Image Text:Q3 A rheology test has been conducted on asphalt binder to investigate the relationship
between test temperature and complex modulus (G*). The results from the tests are
shown in Table Q3.
(a) Determine a relationship between temperature and log G*.
(b) Calculate and interpret R2 in term of the model variables.
(c) Estimate the failure temperature of the bitumen if the failure temperature is carried
out from the temperature when complex modulus is 2.2 kPa.
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