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Marshal Bituminous Mix Parameters

In a compacte...

Question

In a compacted bitumen mix sample, voids in mineral aggregate (VMA) and percent air voids $(V_{V})$ in a compacted cylindrical bituminous mix specimen are 12% & 3% respectively. The percent voids with bitumen (VFB) for this specimen (in percentage correct up to one decimal place) will be _________

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Solution

$V_{b} = V M A - V_{V}$

$= 12 - 3 = 9 %$

$V F B = \frac{V_{b}}{V M A} \times 100$

$= \frac{9}{12} \times 100 = 75$

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