“Non-curing filler” – Clay Shock is being used in more applications day by day.
What is Clay Shock?
Clay Shock is a highly viscous filler lubricant of about 300 to 500dPa. It is produced by mixing Clay sand,TAC-β,(βⅡ) solution and waterglass TAC-3G. Clay Shock incorporates the following features:
*It has fluidity so works very well with respect to overcut under pressurized injection.
*High viscosity, high enough clogging effect even with large clearance ground, with high stability of over the excavated area.
*Even when filling an actively excavated area, the backfilled Clay Shock material does not affect the shield machine.
*Adhesive strength and shear resistant force are less than ground, creating an effect of reducing the frictional resistance of the outer periphery of the shield machine.
Materials used.
(Clay Shock compound example) Per 1.05㎥
| Liquid A（1㎥ ） | Liquid B | |
| Clay Sand | Water | Sodium Silicate |
| TAC-β | TAC-3G | |
| 520kg（495kg） | 800L（762L） | 50L（48L） |
| Liquid A（1㎥ ） | Liquid B | |
| Clay Sand | Water | Sodium Silicate |
| TAC-βⅡ | TAC-3G | |
| 384kg（366kg） | 853L（812L） | 50L（48L） |
Note: Bracketed value “( )” indicates amount per 1m3 of Clay Shock
Viscosity of Clay Shock (viscosity of clear water using viscotester: 1cp = 0.01 dPa・s
