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The design of a concrete mix requires 2,314 lb/yd3 of gravel having a moisture content of 3.5% and absorption of 4.2%, and 899

Posted on October 22, 2021 By Ninaaforever 1 Comment on The design of a concrete mix requires 2,314 lb/yd3 of gravel having a moisture content of 3.5% and absorption of 4.2%, and 899

The design of a concrete mix requires 2,314 lb/yd3 of gravel having a moisture content of 3.5% and absorption of 4.2%, and 899 lb/yd3 of sand having a moisture content of 5.7% and absorption of 1.4%, and 244 lb/yd3 of free water. What is the weight of the mixing water per cubic yard that should be used at the job site? Group of answer choices

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Comment (1) on “The design of a concrete mix requires 2,314 lb/yd3 of gravel having a moisture content of 3.5% and absorption of 4.2%, and 899”

  1. dareaalcaam111 says:
    October 23, 2021 at 10:35 pm

    Weight of mixing water=224.541 lb

    Step-by-step explanation:

    Taking 1 cubic yard of concrete

    Mass of gravel = 2314 lb

    Moisture content = 3.5% Absorption 4.2%

    Extra water needed = (4.2-3.5)*2314/100= 16.198 lb

    Mass of sand= 899 lb

    Moisture content = 5.7% Absorption =1.4%

    Water released = (5.7-1.4)*899/100= 38.657 lb

    Free water = 244 lb

    Weight of mixing water = free water + extra water needed-water released = 244+16.198-38.657=224.541 lb

    Weight of mixing water=224.541 lb

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