Сrushed stone materials and gravel materials bound by mineral binders. Standardization

published:
Number: Issue 24(2021)
Section: Construction and civil engineering
The page spacing of the article: 28–39
Keywords: дорожньо-будівельні матеріали; щебеневі та гравійні матеріали, укріплені мінеральними в’яжучими; технічні умови; склад; міцність при стиску; міцність на розтяг при згині
How to quote an article: Sergii Illiash, Tatyana Tereshchenko, Anatolii Tsynka. Сrushed stone materials and gravel materials bound by mineral binders. Standardization. Dorogi і mosti [Roads and bridges]. 2021. Iss. 24. P. 28–39 [in English].

Authors

State Enterprise «National Institute for Development Іnfrastructure» (SE «NIDI»), Kyiv, Ukraine
https://orcid.org/0000-0002-0357-2325
M.P. Shulgin State Road Research Institute State Enterprise - DerzhdorNDI SE, Kyiv, Ukraine
https://orcid.org/0000-0002-3001-8012
State Enterprise «National Institute for Development Іnfrastructure» (SE «NIDI»), Kyiv, Ukraine
https://orcid.org/0000-0001-5206-9921

Summary

Introduction. This paper presents the results of the standardization of requirements for granular mixtures bound by mineral binders for bases, sub-bases and top layers of road pavements used as framework for national standard «Crushed stone materials and gravel materials for the road building industry — Specifications. Part 3: The materials bound by mineral binders».

Standardization. The standard covers the requirements for crushed stone-sand and sand-gravel mixtures treated with mineral binders and derived from them hardened materials as well as the requirements for source constituents. Mineral binder for the standardized type of road materials shall be selected from following main constituents: cement, slag or fly ash each separately or combinations thereof using an activator if required. Standard mixtures shall be produced in a factory or mixed in situ on the road surface. Clauses of the standard also comprise the requirements for mixtures and related hardened materials from active slag or ash-slag materials which can act as the main constituent of the mixture (aggregate) and part of the binder.

Standardized mandatory characteristics include mixtures physical properties comprising grading envelopes, and mechanical properties; the obligatory sections of the standard include requirements on quality control, transporting and marking of mixtures.

Conclusions. Conclusions outline main results of standardization in view of the ongoing works on processing the related European Norms as national normative documents. It is emphasized that the developed standard supplements the fundamental requirements of adapted European normative documents regarding the composition and properties of said mixtures, particularly the requirements on frost resistance.

The subsequent work shall be aimed at the adaptation of national regulations on road pavement design and construction to implement the newly standardized requirements for hydraulically bound mixtures.

References

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