What is the minimum sample weight for fine aggregate after drying?

The minimum sample weight for fine aggregate after drying is established to ensure that the sample is large enough to provide accurate and reliable test results for various properties such as moisture content, gradation, and overall quality. A sample weight of 300 g is typically the minimum required because it provides a sufficient volume of material to achieve a representative analysis. This weight strikes a balance between practicality and the need for precision in testing, allowing for the detection of fine variations in the aggregate that may affect performance in construction applications.

Using a sample weight below this threshold might lead to inadequate representation of the aggregate's characteristics, possibly skewing test results and leading to poor quality assessments. In practical terms, ensuring a minimum weight helps laboratories and inspectors adhere to accepted standards, which promotes consistent testing and helps maintain quality control in construction projects.