Design and Assessment of a Lightweight Polymer Concrete Utility Manhole

Table 3

Sand and quartz gradation.

Sieve size	Retained on the sieve (%)
	Fine sand	Coarse sand	Quartz
No. 4	0.0	0.0	0.0
No. 8	2.9	13.1	0.0
No. 16	7.7	355.7	0.0
No. 30	16.2	60.9	0.0
No. 50	62.0	88.7	0.0
No. 100	96.9	98.0	0.0
No. 200	100.0	100.0	100.0
Bottom	100.0	100.0	100.0
Fineness modulus	1.86	2.96	—