Estimating Deterioration Rate of Some Carbonate Rocks Used as Building Materials under Repeated Frost Damage Process, China

Table 8

Comparing values of the parameters of a mathematical decay function model obtained in the present study with other studies.

Reference	Rock type	Rock properties	Decay constant (λ)	Half-life (N1/2)
Mutlutürk et al. [20]	Various limestone samples	SH	−0.003 to −0.007	244.5 to 84.8
	Various travertine samples	SH	−0.004 to −0.007	168.2 to 101.1
Akin and Özsan [35]	Travertine^a	UCS^c	−0.002	288.8
	Travertine^b	UCS^c	−0.005	147.5
Jamshidi et al. [34]	Various limestone samples	BTS	−0.002 to −0.004	346.5 to 173.3
		Is (50)	−0.004	173.3
	Various limestone samples	BTS	−0.015 to −0.024	46.2 to 28.9
		Is (50)	− 0.019 to −0.02	36.5 to 34.7
The present study	Six different limestone types	USC	− 0.002 to −0.007	346.5 to 99
		Is (50)	−0.002 to −0.006	346.5 to 115.5
		Sch	−0.001 to −0.002	693 to 346.5

SH, shore hardness; UCS, unconfined compressive strength; BTS, Brazilian tensile strength; I_s (50), point load strength; ^aporosity <5%; ^bporosity > 5%; ^cperpendicular to lamination; Sch, Schmidt rebound hardness.