Table 2.

Seepage volume of concrete CF15 sample under ultrapure water-eroding procedure within 15 min.

Immersion time (day)	Water permeability test time (min)
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
0	124	187	264	301	337	370	394	416	441	456	1598	521	529	543	563
30	539	805	997	1125	1246	1330	1423	1488	1547	1598	1666	1713	1756	1795	1836
60	204	353	426	550	602	654	697	799	835	870	900	930	1017	1041	1069
90	338	571	725	807	876	930	1002	1047	1086	1121	1153	1203	1229	1257	1278
120	104	154	197	253	288	318	344	370	396	422	442	463	502	520	543
150	55	89	113	139	161	182	200	221	249	262	271	295	305	319	333