Question 954511
0.075(15kg)=1.125kg
1.125kg(1 liter water/1kg water)=1.125 liters
ANSWER: 7.5% of 15 kg would be 1.125 kg or 1.125 liters water.
Pure water weighs 1.000028 kg/liter so 1kg/liter is close enough for concrete.