Study on the Water-Physical Properties of the Cement-Plaster Bonded Rock-Like Materials

Table 4

Orthogonal experiment results of the similar material ratio.

Number	Water absorption (%)				Softening coefficient ηc				Permeability coefficient k (10^−5 cm/s)
	I	II	III	Mean	I	II	III	Mean	I	II	III	Mean
1	15.1	16.2	16.1	15.8	0.477	0.482	0.469	0.476	0.098	0.256	0.132	0.162
2	17.6	17.8	18.6	18.0	0.505	0.498	0.503	0.502	0.355	0.398	0.453	0.402
3	18.8	19.6	19.2	19.2	0.633	0.641	0.64	0.638	4.068	4.003	3.824	3.965
4	21.1	20.8	19.6	20.5	0.708	0.701	0.703	0.704	10.085	8.987	8.624	9.232
5	21.5	20.2	21.3	21.0	0.506	0.503	0.494	0.501	0.878	0.968	0.926	0.924
6	13.2	14.5	13.1	13.6	0.589	0.581	0.579	0.583	0.312	0.485	0.391	0.396
7	22.2	21.8	22.9	22.3	0.601	0.605	0.600	0.602	28.069	29.622	31.268	29.653
8	19.8	20.8	19.7	20.1	0.622	0.618	0.629	0.623	8.658	7.652	7.285	7.865
9	26.1	27.1	26.3	26.5	0.441	0.451	0.446	0.446	9.712	10.989	9.134	9.945
10	30.5	30.1	30.3	30.3	0.481	0.485	0.498	0.488	38.956	39.861	41.339	40.052
11	13.0	14.1	13.4	13.5	0.628	0.633	0.635	0.632	0.751	0.621	0.584	0.652
12	16.8	16.9	17.9	17.2	0.712	0.725	0.702	0.713	1.389	1.847	1.687	1.641
13	30.0	31.0	29.9	30.3	0.415	0.42	0.428	0.421	49.698	41.295	48.846	46.613
14	26.5	26.8	27.7	27.0	0.556	0.543	0.551	0.550	13.369	12.087	12.803	12.753
15	20.1	21.1	20.9	20.7	0.561	0.568	0.557	0.562	2.611	2.148	2.945	2.568
16	16.6	16.5	15.8	16.3	0.687	0.692	0.691	0.690	0.772	0.821	0.948	0.847