description

Filling mortar is a key element to ensure the safety of tunnel excavation. It prevents ground collapse by filling the annular gap left between the cut surface and the arch back.

Fill the annular gap correctly:

Ensure good cohesion between the ground and the arch back

Use guides to fix the arch back

At present, the most commonly used technique is two-component grouting. In subsequent operations, it will present many advantages:

Obtain mortar through continuous feeding,

Pump mortar from the surface,

Pump the mortar until 72H, wait...

product advantages

The grouting additives provided by Sushang combine the ingredients of two-component grouting and traditional grouting

It has the following advantages:

Stronger fluidity (long-distance pumping)

Stronger stability (limited phase shift)

Delay the solidification rate and prevent cement hydration

Little impact on the environment