Investigation of the Load-Sharing Theory of the RC Pipes Rehabilitated with Slip Liners

Table 1

Stiffness factors of the tested pipes.

Type of pipe ring		Mean radii (mm)	Elastic modulus (MPa)	Pipe stiffness factor, φ (MPa)
RCP		660	36000	4.786
Grout	For CSP	550	32500	8.54
	For steel pipe	580	32500	1.78
	For HDPE	550	38000	2.32
CSP		527.5	2.1 × 10^5	1.90
Steel pipe		555	2.1 × 10^5	0.1
HDPE		539.75	800	0.066
Shape steel bracket		562.5	2.1 × 10^5	1.5
RGC				15.23
RGS				6.67
RGH				7.17
RGB				6.29