What standard instrument is typically used to measure moisture content in aggregates?

A moisture meter is specifically designed to measure the moisture content in aggregates accurately. It works by using various methods, often involving electrical resistance or capacitance, to determine the amount of moisture in the aggregate material. This is crucial in construction and material testing as moisture levels can greatly affect properties such as compaction, strength, and durability of materials used in base layers.

In the context of aggregate testing, measuring moisture content is an essential aspect, as it influences both the mix design and the performance of the aggregates once they are incorporated into a project. A balance scale, while useful for measuring weight, cannot provide moisture content directly. A pressure gauge measures pressure rather than moisture, and a thermometer simply gives temperature readings, which are not related to moisture levels in aggregates.