Based on the research the team has done so far, conclusions can be drawn,
1. The aggregate from Plant B has the greater water absorption capacity than Plant A. Prewetted treatments were used to prevent a rapid decrease in concrete workability and possible decrease in compressive strength. Compression test results show that concrete mixes from Plant B have better strength than Plant A.
2. Combined mixes prepared with ½”+ #4 aggregate and 3/8” + #4 aggregate display better compressive strength than #4 single aggregate mixes. This could be caused by the interlock effect among combined aggregates as opposed to #4 mixes that has an aspect of uniform gradation.
3. The fiber addition in ½”+ #4 aggregate has approved to have better compressive performance of concrete specimens as compared with the same mixes without fiber.
4. Even though the fiber addition could increase the compressive strength of concrete specimens, the void ratio of concrete specimens however has the lowest value of 17.4%. This is the tradeoff between the strength and the permeability of pervious concrete.
5. This preliminary study leads to the next step for assessing the durability of pervious concrete mixtures.