The work presents a case study applied to the analysis of columns in cultural heritage. The GPR assessment of columns in three different places of a Modernista set of buildings allows determining the differences in constructive solutions. The study of the church denotes that the columns are masonry structures with four metallic reinforcements along the shaft. The analysis carried out in the pavilions highlights differences between two types of masonry columns: some of them are built with regular arrangement of bricks and seem to be solid structures; others have a metallic pipe (a rain drainage tube) in the centre of the structure, and the inner elements are most likely portions of bricks with a shape similar to a triangles.


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