Table 2. Mean dry densities of hollow blocks (kg m^–3) with varying mix ratios and percentage replacement

Mix ratio	Percentage replacement (%)
Mix ratio	0	5	10	15
1:2:0.3	2,436.67 ± 30.55^a	2,320.00 ± 10.00^b	2,050.00 ± 60.83^c	1,963.33 ± 98.15^c
1:1.5:0.4	2,373.33 ± 77.67^a	1,983.33 ± 159.48^b	2,200.00 ± 26.46^a	1,803.33 ± 73.71^b
1:1:0.5	2,486.67 ± 41.63^a	2,466.67 ± 30.55^a	2,326.67 ± 80.21^b	2,186.67 ± 40.41^c
1:0.5:0.7	2,326.67 ± 28.87^a	2,276.67 ± 46.19^ab	2,196.67 ± 51.32^b	1,973.33 ± 66.58^c

Values are presented as mean ± SD.
Superscripts indicate significant differences (p < 0.05) across each row using Duncan’s Multiple Range Test (DMRT).