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The main critical issues still concern, for instance, the individuation of accelerated laboratory tests able to characterize concrete performances, reliable corrective factors to be used for the evaluation of long-term durability performances and the validation of these models based on real long-term durability performances. [6] [9]
The Spanish–American War, known in Spain as the Disaster of the 98 or War of Cuba, arose between Spain and the United States in 1898, during the regency of María Cristina, widow of the king Alfonso XII. For Spain it meant the loss of the overseas colonies and the end of the formerly powerful Spanish empire.
This kind of concrete is also known as self-repairing concrete. Because concrete has a poor tensile strength compared to other building materials , it often develops cracks in the surface. These cracks reduce the durability of the concrete because they facilitate the flow of liquids and gases that may contain harmful compounds.
Concrete is a composite material composed of aggregate bonded together with a fluid cement that cures to a solid over time. Concrete is the second-most-used substance in the world after water, [1] and is the most widely used building material. [2] Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminium combined. [3]
Spanish literature is literature (Spanish poetry, prose, and drama) written in the Spanish language within the territory that presently constitutes the Kingdom of Spain.
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Concrete is the most widely used material in existence and is behind only water as the planet's most-consumed resource. [ 2 ] Cements used in construction are usually inorganic , often lime - or calcium silicate -based, and are either hydraulic or less commonly non-hydraulic , depending on the ability of the cement to set in the presence of ...
World No. 2-ranked Alexander Zverev withdrew from the United Cup mixed teams tennis tournament on Wednesday with a biceps strain less than two weeks from the start of the Australian Open. The 27 ...