Table 3. Mean wet densities of hollow blocks at 24 hours (kg m^–3) with varying mix ratios and percentage replacement

Mix ratio	Percentage replacement (%)
Mix ratio	0	5	10	15
1:2:0.3	2,554.00 ± 255.51^a	2,354.00 ± 235.51^a	2,281.33 ± 230.50^a	1,761.33 ± 180.50^b
1:1.5:0.4	2,521.00 ± 250.00^a	2,411.00 ± 241.00^ab	2,181.00 ± 220.01^ab	1,971.00 ± 200.00^b
1:1:0.5	2,544.00 ± 121.11^a	2,486.00 ± 40.63^a	2,240.00 ± 220.00^a	2,204.67 ± 422.47^a
1:0.5:0.7	2,360.33 ± 239.50^a	2,180.33 ± 220.00^a	2,254.33 ± 116.72^a	2,094.00 ± 204.93^a

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