This paper reports on the uncertainty of in situ measurements of the airborne sound insulation of hollow-brick walls in different housing plans, with emphasis on the influence of expansion joints. The mean and standard deviation of multiple measurements are obtained, which show significant differences in insulation values despite the fact that the same construction was used in each case.
Law 37 (2003), Law of the Noise of Spain, Law 37/2003 (BOE 18/11/2003).
2.
DirectiveCE, (2002), Evaluation and Management of the Environmental Noise, Directive 2002/49/CE of the European Parliament and of the Council, June 25.
3.
Law 7 (2002), Law of Protection against the Acoustic Contamination, Generalitat Valenciana of Spain, December 3.
4.
ISO140-4 Standard (1998), Acoustics Measurement of Sound Insulation in Buildings and of Building Elements, Part 4: Field Measurements of airborne sound insulation Between Rooms.
5.
ISO 354 Standard (2003), Acoustics Measurement of Sound Absorption in a Reverberation Room.
6.
ISO 717-1 Standard (1996), Acoustic Rating of Sound Insulation in Buildings and of Building Elements, Part 1: Airborne sound insulation.
7.
NBE-CA Standard (1981), Basic Norm of the Construction NBE-CA-81 on Acoustic Conditions of Buildings (Spanish Normative).
