1. Rigidity test: Thaum lub concentrated load yog 0.75KN los yog lub uniformly faib load yog 1.5KN, lub radial deformation yog tsawg dua los yog sib npaug rau 0.1d.
2. Kev ntsuas impermeability: cement slurry nrog dej cement piv ntawm 0.5 yuav tsum tsis txhob xau los yog xau rau 30 feeb.
3. Tensile xeem: Cov yeeb nkab phab ntsa yog undamaged nrog ib tug axial tensile quab yuam ntawm 5KN.
4. Pull-out test: Cov qauv rub tawm tsis kam ntawm lub thauj tog rau nkoj ntsia liaj qhov rooj yog ntau tshaj 2.3 npaug ntawm lub thauj tog rau nkoj ntsia liaj qhov rooj.
5. Bending test: Thaum lub vojvoog curvature yog 30 hnub, tsis muaj dej los yog slurry to.
Cov kev ua haujlwm tsis zoo ntawm cov kav hlau corrugated yog cov cim tseem ceeb ntawm cov hlau corrugated yeeb nkab elastic Cheebtsam thiab cov txheej txheem tseem ceeb rau kev txiav txim siab seb cov yeeb nkab corrugated puas tuaj yeem siv tau. Ntxiv rau qhov ntsuas tus nqi, hom kev ntsuas no kuj yuav tsum tau muab qhov kev zam rau ntau yam (tus nqi txwv) kom ntseeg tau tias muaj kev ntseeg siab ntawm kev siv cov khoom siv elastic.