Structural strengthening with mortar jacketing on solid brick vaults.

Structure type

Solid brick vault (or alternatively rubble stone vault).

Detail

Mortar jacketing for structural strengthening and upgrading on the extrados of a solid brick vault.

Application cycle

1. Solid brick vault (or alternatively mixed stone).
2. Strengthening and structural upgrade layer of RALLK Muro K, based on NHL 3.5 natural hydraulic lime.
3. Alkali-resistant glass fiber, carbon fiber or steel strengthening mesh, properly connected to the masonry with connectors.
4. Strengthening and structural upgrade layer of RALLK Muro K, based on NHL 3.5 natural hydraulic lime, finished smooth by floating or with a finishing skim coat of RALLK Rasante K, followed by a mineral finish or paint if set out in the specifications.

Additional information

1. RALLK Muro K is a class M15 mortar with high bond strength on absorbent masonry. On low-absorption masonry, RALLK Muro K can be preceded by a bonding scratch coat of RALLK Muro K SRG, applied with an upturned trowel or a plastering machine for pre-mixed products.
2. The reinforced layer (reinforced topping) prevents mechanisms (hinges) from forming that could make the vault unstable.
3. The bonding scratch coat cannot replace fixing the strengthening mesh to the masonry vault with connectors of suitable number and type.
4. See the individual product data sheets for application methods and precautions.