BS EN 12697-29:2020 pdf free.Bituminous mixtures – Test methods.Determination of the dimensions of a bituminous specimen.
BS EN 12697-29 1 Scope This document specifies a test method for determining the dimensions of cylindrical, rectangular or non-rectangular bituminous test specimens by measurement.
The test is applicable to laboratory-made specimens, trimmed by sawing, or specimens from cores cut from the road, trimmed by sawing.2 Normative references There are no normative references in this document.3 Terms and definitions No terms and definitions are listed in this document.ISO and IEC maintain terminological databases for use in standardization at the following addresses:IEC Electropedia: available at http://www.electropedia.org/一ISO Online browsing platform: available at https://www.iso.org/obp/wi 5.1 General The measurements should preferably be made with the specimen standing firmly on its upper face in a vertical position. Alternatively the specimen can be laid on a level surface in a horizontal position and
rolled as necessary to permit the taking of all measurements.5.2 Measurement of height 5.2.1 Take four measurements evenly spaced around the perimeter of each specimen. The position of
these measurements shall be clearly marked along each specimen. All measurements shall have a limit deviation of土0,1 mm.5.2.2 Each measurement shall be made approximately 10 mm in from the edge of the specimen.5.2.3 Define the average of the four measurements as the height of the specimen and express it to the nearest 0,1 mm.5.3 Measurement of diameter
5.3.1 For specimens with thickness > 60 mm, take two measurements perpendicular to each other at the top, the middle and the bottom of the specimen.For specimens with thickness > 30 mm to 60 mm, take two measurements perpendicular to each other at the top and the bottom of the specimen.For specimens with thickness ≤30 mm take two measurements perpendicular to each other in the middle of the specimen. All measurements shall have a limit deviation of土0,1 mm.5.3.2 Define the average of measurements as the diameter of the specimen and express it to the nearest 0,1 mm.5.4 Measurement of (non)-rectangular specimens 5.4.1 Take four measurements evenly spaced around the perimeter of each specimen in each direction (height, width and depth). If the dimensions in one or more directions change substantially (e.g. a two point bending test specimen) the number of measurements in that direction shall be extended in such a way that the volume of the specimen can always be calculated.The position of the measurements shall be clearly marked along each specimen. AIll measurements shall have a limit deviation of土0,1 mm.BS EN 12697-29 pdf downlaod.