Lab Pavement Specific Gravity and Absorption of Fine Aggrega

Lab Pavement Specific Gravity and Absorption of Fine Aggregate (AASHTO T84)

1-What are the possible sources of errors in this experiment?

2-How does aggregate quality can be assessed by percent absorption of aggregate?

3-Explain how can we find out specific gravity of an aggregate mix that contains both coarse and fine aggregates.

1. Possible sources of errors in this experiment

Quality of water will effects the results

A large amount of deleterious material around the aggregates will effects the specific gravity and water absorption

Change in oven temperature will causes change in specific gravity and water absorption

2. Assesment of good quality of aggregates from water absorption percentage

IF the absorption percentage is with in the limits , it contributes for better durability. Compressive strength

If the absorption percentage is above the limits., it effects durability. And compressive strength