{"id":395207,"date":"2024-10-20T04:17:48","date_gmt":"2024-10-20T04:17:48","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-12697-492022-tc\/"},"modified":"2024-10-26T08:03:35","modified_gmt":"2024-10-26T08:03:35","slug":"bs-en-12697-492022-tc","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-12697-492022-tc\/","title":{"rendered":"BS EN 12697-49:2022 – TC"},"content":{"rendered":"
This document specifies a method to determine the friction at 60 km\/h after polishing during a fixed number of passes on surfaces of bituminous mixtures samples, or to follow its evolution as a function of the number of polishing passes. The samples used are either produced in a laboratory or are cores taken from the site.<\/p>\n
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
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46<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
49<\/td>\n | European foreword <\/td>\n<\/tr>\n | ||||||
51<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
53<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviated terms 3.1 Terms and definitions 3.2 Symbols and abbreviated terms <\/td>\n<\/tr>\n | ||||||
54<\/td>\n | 4 Principle 5 Equipment 5.1 Test device 5.1.1 General 5.1.2 Polishing unit <\/td>\n<\/tr>\n | ||||||
57<\/td>\n | 5.1.3 Specimen clamping system 5.1.4 Measuring unit <\/td>\n<\/tr>\n | ||||||
59<\/td>\n | 5.2 Control plate for comparative measurements 5.3 Sand-blasting-equipment 6 Other materials 6.1 Quartz powder <\/td>\n<\/tr>\n | ||||||
60<\/td>\n | 6.2 Water quartz powder mixture 6.3 Corundum 7 Test method 7.1 Preparation of the specimens 7.1.1 General 7.1.2 Specimens prepared in the laboratory <\/td>\n<\/tr>\n | ||||||
61<\/td>\n | 7.1.3 Specimens taken from the site 7.1.4 Conditioning of specimens 7.2 Polishing procedure 7.2.1 General 7.2.2 Pre-test check of the polishing unit 7.2.3 Polishing process <\/td>\n<\/tr>\n | ||||||
62<\/td>\n | 7.3 Friction measurement 7.3.1 Pre-test check of the measurement device 7.3.2 Friction test <\/td>\n<\/tr>\n | ||||||
63<\/td>\n | 8 Calculation and expression of the results 8.1 Friction result \u03bc FAP on a single specimen 8.2 Determination of FAP 9 Test report <\/td>\n<\/tr>\n | ||||||
64<\/td>\n | 10 Precision <\/td>\n<\/tr>\n | ||||||
65<\/td>\n | Annex A (informative) Example of polishing head and friction unit <\/td>\n<\/tr>\n | ||||||
66<\/td>\n | Annex B (informative) Results obtained from the curve FAP against passes <\/td>\n<\/tr>\n | ||||||
67<\/td>\n | Annex C (informative) National experiences <\/td>\n<\/tr>\n | ||||||
74<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Tracked Changes. Bituminous mixtures. Test methods – Determination of friction after polishing<\/b><\/p>\n |