Electrical Resistivity of Concrete for Durability Evaluation: A Review

Table 3

Details of the curing conditions, exposure conditions, and measurement period.

Refs	Curing conditions	Temperature (°C)	Exposure conditions	Measurement period (days)
[4]	Lime-saturated water tank	20 (except one type mixture kept in water having 5, 20, 35 temperature)	Lime-saturated water tank/lab condition and oven dry state (only one type mixture)	90 (except ten of the mixtures tested at age of 365 days)
[16]	Lime-saturated water tank	23 ± 1	Lime-saturated water tank	28
[22]	NR	15, 26, 40	Plastic wrapped	1
[23]	NR	20	Laboratory (air dry)	1000
[8]	Water tank	20	Water tank (except two slabs were kept in air after 7 days)	30
[24]	NR	NR	Various	120
[25]	Lime-saturated water tank	23	Various	28
[26]	100% relative humidity in a chamber	20 ± 2	100% relative humidity in a chamber	28
[27]	Water tank	20	Water tank	45
[28]	NR	NR	Seashore Exposure/immersed in saline solution	1000
[29]	Plastic wrap	20	Room temperature	90
[30]	NR	NR	NR	28
[11]	Room temperature	25 ± 2	Room temperature	28
[31]	Lime-saturated water tank	Laboratory	Lime-saturated water tank	56
[32]	NR	10–45	Room condition with RH > 95%	2,190
[33]	Water tank	20	Water tank	181
[34]	Wet chamber with RH > 95%	23 ± 2	Wet chamber with RH > 95%	91
[35]	Water tank	23 ± 0.5, 105 ± 2	Various	28
[36]	Wet burlap	20	Oven dried and then water bath	31
[37]	Water tank	20 & 5	Water tank (after 7 days, some cylinders subjected to air condition)	30
[38]	Water tank	20 ± 2	Water bath	720
[39]	Lime-saturated water tank	23 ± 2	Lime-saturated water tank	91
[40]	Water tank	NR	Water tank	365
[41]	Various	21–45	Various	1,100–2,200
[42]	Lime-saturated water tank/wet burlap	NR	Lime-saturated water tank/wet burlap for 3 or 7 days	91
[43]	Lime-saturated water tank	Various (10–45)	Various	65
[44]	Various	Various	Various	500
[45]	Wrapped in damp Hessian and stored under polythene tentage	15–20	Maine exposure	140
[46]	Various	18–32	Salt ponding	90
[47]	Water tank and laboratory air	20 ± 2	Actual tidal zone, wet and dry cycle	NR
[48]	Five various curing regimes (tap water, NaCl solution, rog room)	Room	Various	1500
[49]	Various	20 ± 2/uncontrolled	Various	90
[50]	Six days in fog room/three weeks in room condition	20	26 weekly cycles of 24 h 3% NaCl solution penetration and drying for 6 days/after 30 weeks, various conditions	52
[51]	Water tank	25	Water tank	90
[52]	Moist room with a sustained 100% humidity	23	NaCl solution	1,092
[53]	Lime-saturated water tank	22	Lime-saturated water tank	56
[54]	Changing exposure	23 ± 2	Changing exposure	90
[55]	Lime-saturated water tank	21 or 36	Various	1000
[56]	Lime-saturated water tank	23 ± 2	Lime-saturated water tank	28
[57]	Water tank for 14 days/14 days in drying cabinet at 40°C	20 ± 1 & 40 ± 1	Salt ponding (wet & dry cycle)	270
[58]	Lime-saturated water tank	25	Lime-saturated water tank	90
[59]	Chamber with RH > 95%	21	Chamber with RH > 95%	28
[60]	Laboratory environment (kept in plastic bag)	14–27, 3–13	Seashore condition	1,000
[21]	Water tank	21 ± 3	Water tank	7
[61]	Lime-saturated water tank	NR	Lime-saturated water tank	1
[62]	Lime-saturated water tank	NR	Lime-saturated water tank	730
Authors	14 days wet burlap and 14 days air dry	Uncontrolled	Natural environment and simulated seashore condition	720