Some cemeteries are hundreds of years old; unmarked graves can be common. Sandberg can undertake Ground Penetrating Radar (GPR) surveys for the location of graves and cemetery surveys.
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Category Archives: Uses of Ground Penetrating Radar
Location of unmarked graves using Ground Penetrating Radar
Hollow block reinforced wall defect surveys
Concrete blocks, especially those with hollow cores, offer various possibilities in masonry construction. Filling some or all of the cores with concrete, with or without reinforcing steel, offers much greater resistance to bending; however major performance and durability problems can arise if the reinforced cores are not fully filled with concrete. The question is, how can you tell? Ground Penetrating Radar offers a simple and effective solution…
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Ground Penetrating Radar used to locate Voids in Stone Wall
The purpose of the survey was to establish any voids present within the stone wall construction of St Helen’s church, Broadgate London. The North wall and part of the East wall were nominated for survey. The wall construction comprised a stone inner and outer leaf, with a rubble fill in-between; the total wall construction is approximately 900mm to 1m thick.
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Ground Penetrating Radar used to locate Glass Fibre Reinforced Polymer (GFRP) bars
Glass Fibre Reinforced Polymer (GFRP) bars comprise of polymer, glass, carbon or aramid fibres set in a resin to form a rebar rod. These rebar are then used in a similar manner to conventional steel reinforcement. GFRP bars are not detectable by conventional cover-meters or the Hilti Ferroscan; however we have successfully used Ground Penetrating Radar to detect and locate these bars.
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