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mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_ca">ciment pòrtland </topic></authority><related type="narrower"><topic>superciment</topic></related><related type="narrower"><topic>ciment de maçoneria </topic></related><related type="narrower"><topic>ciment pòrtland modificat </topic></related><related type="narrower"><topic>ciment d&apos;escòries pòrtland</topic></related><related type="narrower"><topic>formigó pòrtland de putzolanes</topic></related><related type="narrower"><topic>ciment pòrtland estàndard</topic></related><related type="narrower"><topic>ciment resistent al sulfat</topic></related><related type="narrower"><topic>ciment de baix valor</topic></related><related type="other"><topic>reacció silicoalcalina / reacció àlcali-sílice</topic></related><related type="broader"><topic>ciment per composició o origen</topic></related></mads>