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  • BSI
    21/30398339 DC BS EN 12272-1. Surface dressing. Test methods - Part 1. Rate of spread and accuracy of spread of binder and chippings
    Edition: 2021
    $44.66
    / user per year

Description of 21/30398339 DC 2021

This document specifies test methods for determining the rates of spread and accuracy of spread of binder and chippings of a surface dressing on a section of road at a given time.

NOTE

This test method can also be used for determining the rate of spread and accuracy of spread of sprayed bituminous emulsions, e.g. when used as bond coats or asphalt preservation systems. The performance categories for binder rate of spread and accuracy of spread in EN 12271 do not apply to bond coats and tack coats.

The test methods are used on site to check the ability of binder sprayers and chipping spreaders to meet the intended rates of spread and tolerances and coefficients of variation.

The test methods can be used to fulfil the Factory Production Control requirements:

  1. equipment calibration ( EN 12271:2006, Annex B – Table B.2); and

  2. production inspection ( EN 12271:2006, Annex B – Table B.6).

The calibration of binder and chipping spreaders requires strict application of the procedures described in this document.

Using these methods for inspections during production (FPC) allows certain changes to these methods due to the specificity of certain sites and materials used (e.g. combined chipping-binder spreaders). In this case, the changes are documented in the Factory Production Control and identified in the test reports.

Other test methods used to check the rate of spread and accuracy of spread of binder, such as the static spray bar bench test for sprayers, are not covered by this document, although the test methods in this document can be used for this purpose.



Standard Number21/30398339 DC
TitleBS EN 12272-1. Surface dressing. Test methods - Part 1. Rate of spread and accuracy of spread of binder and chippings
StatusDefinitive
Publication Date2021-07-15
Identical National Standard OfprEN 12272-1
DescriptorsPerformance testing, Road surfacing, Construction operations, Sprayers, Roadstone aggregates, Binding agents, Spreaders, Airports, Surface treatment, Roads
ICS93.080.20 Road construction materials
CommitteeB/510/2
PublisherBSI
Pages35

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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