Blogs
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Johny AJ
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July 12
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2 Minutes Read
Techniques for Heritage Conservation Applied in Loyola College
The appropriate restoration method for a historical building or heritage site depends on the structure's historical significance, projected use, physical state, and the project's overall allotted funds.
The techniques used for conservation in Loyola College can be broadly categorised into the methods of Repair, Restoration, and Preservation. They are explained in detail below:
Repairs:
The fundamental goal of repairs is to keep the building's original architectural characteristics intact. This is frequently used while the building is still in use.
E.g. - Patching up cracks in walls and floors, mending doors and windows, replacing glass panes, checking and replacing electrical cables, rearranging any damaged floor or roof tiles, painting, redecorating, plastering, and many other upgrades are examples of repairs and other improvements.
Here, the roof tiles have been relayed by elimination of the lime layer that was present earlier. The sunken stone flooring in the ground floor has been replaced with Kota stone tiles. The old layers of plaster have been chipped off the walls and been plastered with two layers of new lime mortar plaster followed by lime milk plastering and then painting.
Figure 1 Inspection and Removal of Lime Cement Layer
Figure 2 Relaying of Mangalore Tiles
Figure 3 Chipping and removal of old Plaster
Figure 4 After Plastering
Figure 5 Renovated and Restored Roof
Figure 6 Relaying sunken stone flooring in ground floor with tiles
Restoration:
This is in fact contrary from simple repairs. It requires a complete restoration of the structural integrity of the building that existed prior to the damage. If a structure has deteriorated past the point of building rules and needs to be restored to its former grandeur, restoration is typically the best line of action.
Restoration of the building's original strength begins with structural repairs on the load-bearing elements, such as pillars and arches. A variety of strengthening techniques can be applied to ensure that there are no future structural problems.
Here, the defective rafters have been replaced by new solid Koyla wooden rafters. The structural cracks have been treated using the method of jet grouting which involves stabilisation of the crack by means of fluid (lime mortar) injection followed by curing.
Figure 7 Rafter Painting after Restoration
Figure 8 Equipment and materials required for crack filling
Figure 9 Preparation of the filling mix
Figure 10 Filling of structural cracks using method of Jet Grouting
Preservation:
Majority of the ancient buildings are vulnerable to earthquakes, material deterioration, and structural flaws at the time of construction, and they require innumerable repairs and adjustments throughout time, which can damage the original symmetry and elevation of the building plan.
The goal of preservation is to protect the structure from future natural calamities that can cause extra harm to the building.
This preservation method focuses on maintaining a historical structure's original shape while restoring it so that it can withstand the test of time. A structure will become stronger via preservation, enabling it to stand tall and solid.
Here, the defective railings in every floor have been replaced by concrete and lime plaster using the method of moulding and casting of the imitated railing design.
Figure 9 Replacement of defective Railing with concrete and lime plaster using moulds
Figure 10 Installation of Lightning arrestors along the perimeter of the building in the terrace
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