Table 2 Mix proportions types and sources of test slabs.

Cement

3.15

–

–

Florida Rock Company

Coarse aggregate

2.43^a

5.0

–

Brooksville, FL

Sand

2.63^a

0.5

2.63

Branford, FL

Light-weight aggregate

1.54^a

25.2

4.29

Big River Industries Inc., LA

Fly ash

2.40

–

–

Florida Rock Company