Tag: Stones

Montjuïc stone: from extraction to recycling

The mountain of Montjuïc is an important part of Barcelona’s unique skyline. The Romans called it Montem Iovis (mount Jupiter) but its use as a Jewish cemetery for centuries could also have influenced its name. The stone found there has been used for construction since the time of the Iberians and was very important during …

The panels on the central towers: what they’re like and how they were designed

Despite the differences in the diameter, height and number of sides on each of the six central towers on the Sagrada Família, the system of dividing the construction into stone panels is the same. On all of them, the triangular windows overlap the level above and there are always three windows per level. However, there …

What do we mean when we talk about tensioned stone?

Tensioning means to make taut, tight, tense. But how can you tighten a stone? Well, what is actually tightened is a cable running through the stone. This cable, which is stretched and becomes some centimetres longer from the tensioning, will tend to return to its normal length, becoming shorter. But if each end of the …

Galera, the making of the Sagrada Família

Eighty kilometres from Barcelona there is a small village with little more than fifty inhabitants nestled among green mountains dusted with snow in winter. The seemingly calm surface, however, belies the incessant activity under way and its international scope. There, at the end of an unpaved side road that also leads to a horse-riding school, …

Stainless steel at the Sagrada Família: what do we use it for?

In a previous article, we explained how we use stone to build the Basilica, not only as exterior cladding for the reinforced concrete structures, as was done traditionally, but also as part of the structure of the temple, thanks to the innovative technique with post-tensioned stone. In the previous article, we looked at both the …

Technology and craftsmanship coexist at the Sagrada Família: iron and stone

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At the Sagrada Família, the artisan trades that were traditionally used can be seen in many facets that co-exist with the more technological side, representative of the current era. This contrast, which has been accentuated in recent years, makes the Temple building project unique, as we have works here that are nearly unheard of on …