Type of Aggregate

w/c

Design Void

Content

Actual Void Content

Average Difference

Limestone

0.33

15%

27.6%

12.6%

25%

31.2%

6.2%

35%

38.5%

3.5%

0.37

15%

28.5%

13.5%

25%

31.9%

6.9%

35%

38.5%

3.5%

0.41

15%

29.8%

14.8%

25%

32.2%

7.2%

35%

38.9%

3.9%

Pea Gravel

0.33

15%

26.9%

11.9%

25%

30.8%

5.8%

35%

38.1%

3.1%

0.37

15%

27.8%

12.8%

25%

31.1%

6.1%

35%

38.1%

3.1%

0.41

15%

29.2%

14.2%

25%

31.8%

6.8%

35%

38.8%

3.8%