© Tatiana Tereshchenko, PhD, Senior Research Officer, e-mail: email@example.com, ORCID: 0000-0001-7584-9031;
© Serhii Illiash, Chief of Department, e-mail: firstname.lastname@example.org, ORCID: 0000-0002-3001-8012
(N.P. Shulgin State Road Research Institute State Enterprise)
STANDARDIZATION OF REQUIREMENTS FOR MATERIALS AND PROCESSES FOR CONSTRUCTION OF ROAD PAVEMENT LAYERS STRENGTHENED BY COMPLEX BINDER
Abstract. This paper presents some results of a research supported by the State Road Agency of Ukraine and dealt with the tandardization of materials and processes for construction of the binder-strengthened layers of road pavements from granular materials treated by bituminous binder and cement at the factory or mixed insitu. Investigation of relationship between bound mixtures composition and properties showed the dependence of proportion of binder components on the mixture grading and on the required strength where the bituminous binder proportion should be higher when using granular materials with more fines or designing mixtures for the upper layers but cement proportion should be higher when requiring higher strength. Specifications elaborated using these results were proved by testing plant-produced mixture that was used to replace the cold recycling. Requirements elaborated for construction of road layer from granular mixtures treated by complex binder were divided as requirements for processes using plant or in-situ techniques and consist of the requirements for technological operations on preparative works, transporting, laying, compaction and curing. Appling the obtained results, the State Road Research Institute State Enterprise (DerzhdorNDI SE) elaborated the Amendment № 1 DSTU-N B V.2.3-39:2016 “Guide on construction of road pavement coursesfrom stone materials”. Elaborated normative document widens the nomenclature of road materials and technologies for construction of strengthened layers of road pavements and should be implemented when building the new road pavement construction or when the enhancement of bearing capacity of an existing road pavement is required.
Keywords: granular material bound by complex binder, binder-strengthened layers of road pavement, requirements for construction.
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