Question

Explain about Moisture content of Aggregate

Answer 1

Since aggregates are porous (to some extent) they can absorb moisture. Generally this is not a concern for HMAbecause the aggregate is dried before HMA production. However, this is a concern for PCC because aggregate is generally not dried and therefore the aggregate moisture content will affect the water content (and thus the water-cement ratio also) of the produced PCC and the water content also affects aggregate proportioning (because it contributes to aggregate weight). In general, there are four aggregate moisture conditions:
✨Over-Dry
✨Air Dry
✨Saturated surface dry
✨Wet

Answer 2

since aggregates are porous they can absorb moisture. generally this is not a concern for HMA bcoz the aggregate is dried before HMA production. In general there are 4 aggregate moisture conditions .
*over -dry(od)
*Air dry(Ad).
*saturated surface dry (ssd)
*wet.