Effect of Nano-CaCO₃ on the Mechanical Properties and Durability of Concrete Incorporating Fly Ash

Table 5

Range analysis based on the compressive strength.

Level	3 d compressive strength			7 d compressive strength			28 d compressive strength
	A	B	C	A	B	C	A	B	C
K1	28.07	23.38	22.87	37.80	31.67	31.10	50.09	40.95	42.92
K2	22.01	21.32	23.12	29.49	28.93	30.06	42.79	44.13	41.75
K3	15.17	20.55	19.27	20.82	27.50	27.05	32.33	40.13	40.53
K	65.25	65.25	65.25	88.11	88.11	88.11	125.21	125.21	125.21
R	12.9	2.84	2.86	16.98	4.17	4.25	17.76	4.02	2.34