Documento Importante de reciente incorporación.

Este magnífico artículo es una excelente guía para especificación de Concretos Durables. Cuando tenga dudas, consulte a los especialistas.

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The required properties of concrete can be specified in several different forms. A prescriptive specification prescribes the mix design and method of placement and curing. A performance-based specification prescribes the required properties of the concrete but does not say how they are achieved. It is usual to nominate concrete properties by calling for a nominated slump and specific strength. Specifying slump and strength is the simplest form of performance-based specification, and can be appropriate when strength is required for adequate performance in its own right. However this approach does not always provide a desirable outcome to the client, as strength may not be the most appropriate property to measure or assess ‘fitness for purpose.’ For example, concrete’s chloride resistant properties may be more important than its compressive strength for marine durability, and floor flatness and levelness may be more important than compressive strength for a high rack warehouse. Performance-based specification can also include such properties, and this is seen as its greatest potential.