GATE Civil Engineering (CE) 2020 Shift 2 Solved Paper

Question : 16 of 65

Marks: +1, -0

As per IS

456: 2000

, the

{pH}

value of water for concrete mix shall NOT be less than

$6.0$
$4.5$
$5.0$
$5.5$

Validate

Solution:

As per IS:

456-2000

, Page no-14, clause 5.4.2, the

{p}^{ {H}}

value of water & 6 of the water used in construction should not be acidic in nature. If water used in construction is acidic, durability problem of concrete occurs.

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