Heritage and buildings
Heritage structures and buildings in use cannot be emptied or rebuilt to fix their foundations. We consolidate the ground beneath them by injection, from outside the footprint where we can, and seal the cracks and basements, while the building stays in use.
Including soil consolidation at the Badi Patan Devi heritage site in Patna Sahib, with the strength gain measured by IIT Patna.
An old structure tells you where it is moving. The ground beneath it tells you why.
We test the soil first, consolidate it with a dose we have measured, and leave the fabric of the building alone.
Industry challenges
Where old structures need us
Settlement under old foundations
Soft or loose soil under shallow footings, settling unevenly and cracking the structure above.
Cracks in masonry and concrete
Cracks that grow, let water in and weaken the structure.
Leaking basements and lower floors
Water through walls, floors and joints below ground.
Work that must not disturb the fabric
Heritage rules and occupied buildings that rule out excavation and heavy plant.
- 1Note 1: A heritage structure that stays in use throughout.
- 2Note 2: Settlement cracks in the masonry.
- 3Note 3: Soft, loose soil under the footings.
- 4Note 4: Self-drilling anchors installed at angles from outside, reaching beneath the footings.
- 5Note 5: Chemical grout consolidates the soil mass under the structure.
- 6Note 6: Strength gain measured on soil from the site in an independent laboratory.
Our solutions
What we do in heritage and buildings
Permeation and chemical grouting
Weak, loose or wet ground strengthened and sealed by resins and gels that fill it without moving it.
Curtain and consolidation grouting
Seepage cut-offs and foundation consolidation for dams, barrages, shafts and structures.
Crack and joint injection
Leaking cracks and joints sealed, and structural cracks bonded, in concrete and masonry.
Waterproofing and polyurea linings
PU membranes and polyurea linings for decks, tanks, tunnels and water structures.
Ground investigation and monitoring
ERT, GPR and MASW surveys, boreholes, lab tests and instruments, before and after treatment.
Our clients and success stories
Heritage and buildings work on record
- Kolkata High CourtGround improvement under the existing foundation of the High Court building, 2018: 117.7 t of DrucStone grout supplied and injected with our operators, pumps and supervision, under IIT Roorkee’s supervisionCertificate from ITD Cementation, August 2019; IIT Roorkee letter, April 2019. Certified Published paper →
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