50 kg of gravel is mixed with 30 kg of sand. The gravel has a moisture content of3.9% and absorption of 4.7%, whereas the sand has a moisture content of 3.5%and absorption of 4.9%. What is the amount of water required to increase the moisture contents of both gravel and sand to reach absorption? Why is it important to determine the amount of water required to increase the moisture content of aggregate to reach absorption?

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