Aggregate properties
Do not write the whole report. Just write two parts of it which is the procedure of the six parts of this report and the group discussion.
1. Using your gradation analysis and the stockpile definitions given in ASTM D448, determine the most likely aggregate stockpile that you sieved.
2. List and discuss three potential problems with a sieve analysis. How would each problem affect the test results?
3. In ASTM C128 and ASTM C127, what would be the consequences of failing to dry the aggregate to SSD before weighing it? Use a simple numerical example to prove your conclusion.
4. How is absorption of the aggregate related to the workability of concrete and to the amount of binder that is needed in an AC mix?
5. The method to find the specific gravity of coarse and fine aggregates is different, but both are based on the same basic physical phenomenon. What is this phenomenon? Explain the formulas used to calculate the fine and coarse specific gravities as well as the absorption.
6. Why is it important to calculate the specific gravity for both dry and SSD condition?
Paper format: MLA