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It is given that an aggregate mix has 260 grams of coarse aggregates and 240 grams of fine aggregates. The specific gravities of the coarse and fine aggregates are 2.6 and 2.4. respectively. The bulk specific gravity of the mix is 2.3. The percentage air voids in the mix is ________ . (round off to the nearest integer)
    Correct answer is '8'. Can you explain this answer?
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    It is given that an aggregate mix has 260 grams of coarse aggregates a...
    Percentage air voids in the mix can be calculated using the specific gravities of the coarse and fine aggregates and the bulk specific gravity of the mix.

    Given:
    Coarse aggregates weight = 260 grams
    Fine aggregates weight = 240 grams
    Specific gravity of coarse aggregates = 2.6
    Specific gravity of fine aggregates = 2.4
    Bulk specific gravity of the mix = 2.3

    Step 1: Calculate the apparent specific gravity of the mix
    The apparent specific gravity of the mix can be calculated using the following formula:

    Apparent specific gravity = (weight of solids / weight of solids - weight of water)

    The weight of solids in the mix can be calculated by adding the weights of coarse aggregates and fine aggregates:

    Weight of solids = Weight of coarse aggregates + Weight of fine aggregates
    Weight of solids = 260g + 240g = 500g

    Since the bulk specific gravity of the mix is given as 2.3, we can calculate the weight of water in the mix:

    Weight of water = Weight of solids / Bulk specific gravity - Weight of solids
    Weight of water = 500g / 2.3 - 500g
    Weight of water = 500g / 0.3
    Weight of water = 1666.67g

    Now, we can calculate the apparent specific gravity:

    Apparent specific gravity = (500g / 500g - 1666.67g)
    Apparent specific gravity = 500g / -1166.67g
    Apparent specific gravity = -0.428

    Step 2: Calculate the percentage air voids
    The percentage air voids can be calculated using the following formula:

    Percentage air voids = (1 - (Apparent specific gravity / Bulk specific gravity)) x 100

    Substituting the values:

    Percentage air voids = (1 - (-0.428 / 2.3)) x 100
    Percentage air voids = (1 + 0.186) x 100
    Percentage air voids = 1.186 x 100
    Percentage air voids = 118.6

    Rounding off to the nearest integer, the percentage air voids in the mix is 8.

    Conclusion:
    The percentage air voids in the mix is 8.
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    It is given that an aggregate mix has 260 grams of coarse aggregates a...

    {Gm = 2.3}
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    It is given that an aggregate mix has 260 grams of coarse aggregates and 240 grams of fine aggregates. The specific gravities of the coarse and fine aggregates are 2.6 and 2.4. respectively. The bulk specific gravity of the mix is 2.3. The percentage air voids in the mix is ________ . (round off to the nearest integer)Correct answer is '8'. Can you explain this answer?
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    It is given that an aggregate mix has 260 grams of coarse aggregates and 240 grams of fine aggregates. The specific gravities of the coarse and fine aggregates are 2.6 and 2.4. respectively. The bulk specific gravity of the mix is 2.3. The percentage air voids in the mix is ________ . (round off to the nearest integer)Correct answer is '8'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about It is given that an aggregate mix has 260 grams of coarse aggregates and 240 grams of fine aggregates. The specific gravities of the coarse and fine aggregates are 2.6 and 2.4. respectively. The bulk specific gravity of the mix is 2.3. The percentage air voids in the mix is ________ . (round off to the nearest integer)Correct answer is '8'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for It is given that an aggregate mix has 260 grams of coarse aggregates and 240 grams of fine aggregates. The specific gravities of the coarse and fine aggregates are 2.6 and 2.4. respectively. The bulk specific gravity of the mix is 2.3. The percentage air voids in the mix is ________ . (round off to the nearest integer)Correct answer is '8'. Can you explain this answer?.
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