Abstract
This paper attempts to describe the recently approved UNE standards through a systematic analysis of the main specifications therein contained and the values considered for each of them, as well as the drafts for ISO and EN concrete block standards. Furthermore, the study tries to place the set of ISO standards in the international environment through a comparative analysis against a representative sample of the standards prevailing in various geographical regions of the globe to determine the analogies and differences among them. PALABRAS CLAVE: albanileria, analisis de sistemas, bloque de hormigon, muros de fabrica, normativa KEY WORDS: masonry, system analysis, concrete blocks, masonry walls, standards
Highlights
The international experience in concrete block construction has proven the excellent behaviour of this construction system and its adaptability to any type of construction
This paper studies the Spanish concrete block standard through a descriptive analysis of its requirements, as well as the standard drafts ISO and EN, standard organisations of which Spain is a part
Se observa la presencia de prescripciones sobre la resistencia a compresión referida a la sección bruta del bloque, en todas las Normas consultadas (100 %), entendiendo aquéllas como un índice que proporciona una medida de la capacidad de la albañilería para resistir las diferentes cargas con un conveniente factor de seguridad, y que determina, junto a la absorción y la succión, las condiciones de durabilidad del bloque de hormigón y su posibilidad de ser usado en los muros exteriores cara vista. It was generally observed in all standards investigated (100 %) the presence of compressive strength specifications refered to a gross block cross-section; this being understood as a value providing a measurement of the ability of the masonry to support loads with a reasonable safety factor and used to determine, together with absorption and suction, the conditions of durability of the concrete block and the possibility of using it in exposed external walls
Summary
The international experience in concrete block construction has proven the excellent behaviour of this construction system and its adaptability to any type of construction. Se observa la presencia de prescripciones sobre la resistencia a compresión referida a la sección bruta del bloque, en todas las Normas consultadas (100 %), entendiendo aquéllas como un índice que proporciona una medida de la capacidad de la albañilería para resistir las diferentes cargas con un conveniente factor de seguridad, y que determina, junto a la absorción y la succión, las condiciones de durabilidad del bloque de hormigón y su posibilidad de ser usado en los muros exteriores cara vista It was generally observed in all standards investigated (100 %) the presence of compressive strength specifications refered to a gross block cross-section; this being understood as a value providing a measurement of the ability of the masonry to support loads with a reasonable safety factor and used to determine, together with absorption and suction, the conditions of durability of the concrete block and the possibility of using it in exposed external walls. El tratamiento que la normativa analizada realiza de esta prescripción —gráficos 4 y 5— es muy diverso, por lo cual se hace necesario analizarlo por separado: The treatment of this specification is highly varied in the examined standards, see graphics 4,5 this fact making it necessary to study each standard separately: 1. Resistencia en función del uso del bloque
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