On the revision of the “Reinforced concrete slabs for pavements of city roads” interstate standard

Introduction. For 38 years since the introduction of State Standard 21924.X-84, the regulatory framework for the design and manufacturing of reinforced concrete products has been significantly adjusted and supplemented. In this regard, the authors of the present article have developed an updated interstate standard for reinforced concrete slabs of city road pavements, taking into account amendments in the regulatory literature.

Aim. To justify State Standard 21924.X-84 updating and present the updated State Standard 21924-2023 to specialists in the design of city roads and production of reinforced concrete slabs for city roads.

Materials and methods. The analysis of existing regulatory documents and materials of contemporary studies in the field of materials science and road slab design was carried out. The authors provided the information on the updated interstate standard State Standard 21924-2023 “Reinforced concrete slabs for pavements of city roads. Specifications”, which specifies the rules and requirements for the design, testing and manufacturing technology of reinforced concrete slabs for city road pavements.

Results. The performed revision toughen the requirements for concrete, expanded the range of selecting the steel for the road slab reinforcement in accordance with State Standard 34028, and brought the road slab loads in line with the current State Standard 32960. All four State Standards editions are combined into one document. Reinforcing materials, reinforcement specifications, as well as instructions for the design of reinforcement products were removed from the previous edition. The calculation and design of reinforcement elements is delegated to design organizations, which will develop solutions for the slab reinforcement based on relevant interstate and national regulatory documents.

Conclusion. The updated standard specifies the technical requirements and test methods, acceptance rules and monitoring methods, which improves the quality of precast reinforced concrete slabs for city road pavements and significantly increases their durability.

1. State Standard 1.5-2001. Interstate System for Standardization. Interstate standards, rules and recommendations on interstate standardization. General requirements for structure, drafting, presentation, content and indication. Moscow: Stand artinform Publ.; 2010. (In Russian).

2. State Standard 13015-2012. Concrete and reinforced concrete products for construction. General technical requirements. Rules for acceptance, marking, transportation and storage. Moscow: Standartinform Publ.; 2018. (In Russian).

3. State Standar d 26633-2015. Normal-weight and sand concretes. Specifications. Moscow: Standartinform Publ.; 2019. (In Russian).

4. State Standard 31384-2017. Protection of concrete and reinforced concrete structures against corrosion. General technical requirements. Moscow: Standartinform Publ.; 2018. (In Russian).

5. Federal Law “Technical Regulations on the safety of buildings and structures” dated December 23, 2009 No. 384-FZ [internet]. Consultant Plus. Available at: https://www.consultant.ru/document/cons_doc_LAW_95720 (in Russian).

6. State Standar d 21924.0-84. Reinforced concrete slabs for pavements of city roads. Specifications [internet]. Available at: https://docs.cntd.ru/document/901707157 (in Russian).

7. State Standard 21924.1-84. Reinforced concrete prestressed slabs for pavewents ot city roads. Structure and dimensions [internet]. Available at: https://docs.cntd.ru/document/901707158 (in Russian).

8. State Standard 21924.2-84. Reinforced concrete slabs of unstressed fittings for pavements of city roads. Structure and dimensions [internet]. Available at: https://docs.cntd.ru/document/901707159 (in Russian).

9. State Standar d 21924.3-84. Reinforced concrete slabs for pavements of city roads. Structure fittings products. Structure and dimensions [internet]. Available at: https://docs.cntd.ru/document/901707160 (in Russian).

10. Federal Law “On Ensuring the Uniformity of Measurements” dated June 26, 2008 No. 102-FZ [internet]. Consultant Plus. Available at: https://www.consultant.ru/document/cons_doc_LAW_77 (in Russian).

11. SP 131.13330.2020. Building climatology. Updated version of SNiP 23-01-99* [internet]. Available at: https://docs.cntd.ru/document/573659358 (in Russian).

12. State Standard 32960-2014. Automobile roads of general use. Traffic load models, application of the load models. Moscow: Standartinform Publ.; 2019. (In Russian).

13. State Standard 8267-93. Crushed stone and gravel of solid rocks for construction works. Specifications. Moscow: Standartinform Publ.; 2018. (In Russian).

14. State Standard 32703-2014. Automobile roads of general use. Crushed stone and gravel from rocks. Technical requirements. Moscow: Standartinform Publ.; 2019. (In Russian).

15. State Standard 8736-2014. Sand for construction works. Specifications. Moscow: Standartinform Publ.; 2019. (In Russian).

16. State Standard 32824-2014. Automobile roads of general use. Natural sand. Specifications. Moscow: Standartinform Publ.; 2019. (In Russian).

17. State Standard 32730-2014. Automobile roads of general use. Crushed sand. Specifications. Moscow: Standartinform Publ.; 2019. (In Russian).

18. State Standar d 27751-2014. Reliability for constructions and foundations. General principles. Moscow: Standartinform Publ.; 2019. (In Russian).

19. Rosenthal N.K., Lyubarskaya G.V. Corrosion of concrete in the interaction of alkalis with silica filler. Beton i zhele zobeton = Concrete and Reinforced Concrete. 2012;(1):50–60. (In Russian).

20. State Standard 8269.0-97. Mauntainous rock road-metal and gravel, industrial waste products for construction works methods of physical and mechanical tests. Moscow: Standartinform Publ.; 2018. (In Russian).

21. State Standard 33031-2014. Automobile roads of general use. Crushed stone and gravel from rocks. Determination of the mineralogical-petrographic composition. Moscow: Standa rtinform Publ.; 2015. (In Russian).

22. State Standard 33050-2014. Automobile roads of general use. Crushed stone and gravel from rocks. Determination of reactivity of rock and aggregates (gravel). Moscow: Standartinform Publ.; 2019. (In Russian).

23. Falikman V.R., Sirotin P.N. Prospects of using crushed stone in accordance with GOST 32703 to produce concrete for general civil construction. Vestnik NIC Stroitel’stvo = Bulletin of Science and Research Center of Construction. 2022;33(2):194–212. (In Russian). https://doi.org/10.37538/2224-9494-2022-2(33)-194-212

24. Pavlova I.P. On the influence of aggregates on the modulus of elasticity of concrete. In: Tensioning cements, concretes and self-stressed structures: proceedings of the International Scientific and Practical Conference, Brest, December 18-20, 2000. Brest: Brest State Technical University; 2000, pp. 164–170. (In Russian).

25. Makeev A.I., Chernyshov E.M. Experimental investigations of the regularities of influence of dimensionalgeometric parameters of the crusher and the potential of concrete resistance to destruction. Stroitel’stvo i rekonstruktsiya = Building and Reconstruction. 2018;(2):122–132. (In Russian).

26. Zenin S.A., Kudyakov K.L., Kudinov O.V. Evaluation of the influence of concretes on aggregates according to GOST 32703-2014 on the strength and deformative properties of bent reinforced concrete structures. Beton i zhelezobeton = Concrete and Reinforced Concrete. 2022;609(1):10–16. (In Russian). https://doi.org/10.31659/0005-9889-2022-609-1-10-16