Civil Engine QUESTION 3 (25 marks) i. Name two of the fundamental properties of asphalt cement and state their respectiv

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Civil Engine Question 3 25 Marks I Name Two Of The Fundamental Properties Of Asphalt Cement And State Their Respectiv 1 (102.13 KiB) Viewed 25 times

Civil Engine QUESTION 3 (25 marks) i. Name two of the fundamental properties of asphalt cement and state their respective significance. Outline the essential steps for conducting a test that will determine one of these properties. (9 Marks) Final Ex AS Marva Blankson ii. 100 points Ad or create A contractor has just completed the compaction of a marl base for a new road in a private business development. Tack coat is then ordered as a surface application in preparation for the asphaltic layer. a. Identify, with reasons, the error that the contractor is making. Furnish, with explanation, the correction to the problem. (6 Marks) kas done b. The grading of the aggregate for the asphaltic concrete of the road should comply with the specification shown in Table 2. The sieve analysis result of the available aggregate (A) is also shown in Table 2. Analyze the aggregate to determine conformance with the specification and give reason(s) for accepting or rejecting the aggregate. (Staple the graph paper to your answer booklet). (10 Marks) nments Class comme to Marva Blanks Add a class comm Table 2 Sieve Size (mm) 9.5 4.75 2.36 1.18 0.6 0.3 0.15 Specification limits (%) 100 80 - 100 70 - 90 50 - 70 35 - 50 18 - 29 13 - 23 Grading of aggregate A (% passing) 100 96 65 30 22 8 3 2