1. AENOR (1996) Concrete tests. Determination of the modulus of elasticity in compression, UNE 83316, 2001. AENOR, Madrid
2. AENOR (2001a) Testing hardened concrete. Part 2: making and curing specimens for strength tests, UNE-EN 12390-2. AENOR, Madrid
3. AENOR (2001b) Testing hardened concrete. Part 1: shape, dimensions and other requirements for specimens and moulds, UNE-EN 12390-1. AENOR, Madrid
4. AENOR (2001c) Testing hardened concrete. Part 3: compressive strength of test specimens, UNE-EN 12390-3. AENOR, Madrid
5. AENOR (2005) Cement - Part 1: Composition, specifications and conformity criteria for common cements, UNE-EN 197-1:2000/A1. AENOR, Madrid