Asphalt Technology HW Lecture 5 From the thin film oven test, it was found the following results: Original Pen No. (from penetration test) Container No. Weight before heating (gm) Weight after heating (gm) 1 131 dmm 50.3 48.8 49.7 48.2 Find the loss in weight due to the effect of heat and air and determine the retained penetration if the penetration value of residue after thin film oven test was 112 dmm. Then compare the results with standards (Specification limits (EN 12607-1): Change of mass, + 0.8% and retained penetration 2 43%. Solution: 1- Find the average weight before and after heating as shown in the following table: W1: Average weight before heating (gm) W2: Average weight after heating (gm) 2- Find the loss in weight of residue after thin film oven test is reported as the percentage by mass of the W1-W2 original sample = * 100 = ? sample has an overall mass ? (loss or gain) W1 ?(> or or

Structural Analysis
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Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Asphalt Technology
HW
Lecture 5
From the thin film oven test, it was found the following results:
Original Pen No.
(from penetration test)
Weight before
heating (gm)
Weight after
heating (gm)
Container No.
1
131 dmm
50.3
48.8
2
49.7
48.2
Find the loss in weight due to the effect of heat and air and determine the retained penetration if the
penetration value of residue after thin film oven test was 112 dmm. Then compare the results with standards
(Specification limits (EN 12607-1): Change of mass, ± 0.8% and retained penetration 2 43%.
Solution:
1- Find the average weight before and after heating as shown in the following table:
W1: Average weight before heating (gm)
W2: Average weight after heating (gm)
2- Find the loss in weight of residue after thin film oven test is reported as the percentage by mass of the
original sample =
W1-W2
* 100 =
sample has an overall mass (loss or gain)
w1
(> or<or=) 0.8% (the max limit of EN standard).
3- Retained penetration ? (> or<or=) 43% (the limit of EN standard).
Transcribed Image Text:Asphalt Technology HW Lecture 5 From the thin film oven test, it was found the following results: Original Pen No. (from penetration test) Weight before heating (gm) Weight after heating (gm) Container No. 1 131 dmm 50.3 48.8 2 49.7 48.2 Find the loss in weight due to the effect of heat and air and determine the retained penetration if the penetration value of residue after thin film oven test was 112 dmm. Then compare the results with standards (Specification limits (EN 12607-1): Change of mass, ± 0.8% and retained penetration 2 43%. Solution: 1- Find the average weight before and after heating as shown in the following table: W1: Average weight before heating (gm) W2: Average weight after heating (gm) 2- Find the loss in weight of residue after thin film oven test is reported as the percentage by mass of the original sample = W1-W2 * 100 = sample has an overall mass (loss or gain) w1 (> or<or=) 0.8% (the max limit of EN standard). 3- Retained penetration ? (> or<or=) 43% (the limit of EN standard).
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