graduate student
Russian Federation
employee
Russian Federation
the relevance of the paper is due to the search for alternative sources of raw materials for the construction industry, associated with the disposal of man-made waste. The novelty of the article is to identify the scien-tific laws of the influence of demolition waste on buildings and structures on the formation of the micro-structure of lightweight and heavyweight concrete. Concrete waste was prepared as both fillers of cement materials and fine aggregates, based on which concrete with high mechanical properties was created. The mix design was carried out from the point of view of geomimetics, in particular, taking into account the law of affinity of structures. The strength characteristics of concrete mixtures were investigated in accordance with EN 12390-3. In addition, the microstructural, morphological and thermal properties of the raw materials and concrete were determined during 28-day curing. For the first time, the dense microstructure of the com-posite was ensured, both with Portland cement products and with hydration, and, in part, with hydration products of previously unreacted clinker, whose minerals are present in concrete waste and are activated when they are crushed. The use of demolition waste of buildings and structures as a filler of cementing ma-terial when replacing Portland cement up to 20% allows to obtain better compressive strength of both heav-yweight and lightweight concrete.
concrete, aggregate, filler, concrete scrap, structure, strength
1. Szelag M. Properties of cracking patterns of multi-walled carbon nanotube-reinforced cement matrix. Materials. 2019. 12 (18). P. 2942.
2. Fediuk R.S., Lesovik V.S., Mochalov A.V., Otsokov K.A., Lashina I.V., Timokhin R.A. Composite binders for concrete of protective structures. Inzhenerno-stroitel'nyj zhurnal. 2018. 6 (82). P. 208 - 218.
3. Al-Fakih A., Mohammed B.S., Wahab M.M.A., Alyousef R., Alabduljabbar H. Characteristic com-pressive strength correlation of rubberized concrete interlocking masonry wall. Structures. 2020. 26. P. 169 - 184.
4. Fedjuk R.S., Timohin R.A., Smoljakov A.K. Nauchnoe liderstvo kitajskih uchenyh v oblasti stroitel'nyh tehnologij. Rossija i Kitaj: problemy strategicheskogo vzaimodejstvija: sbornik Vostochnogo centra. 2017. 19. P. 21 - 24. (rus.)
5. Danish A., Mosaberpanah M.A. Formation mechanism and applications of cenospheres: a review. Journal of Materials Science. 2020 . 55 (11). P. 4539 - 4557.
6. Fedjuk R.S., Mochalov A.V., Pezin D.N., Timohin R.A. Samouplotnjajushhiesja betony s primeneniem othodov rastenievodstva. Vestnik Sibirskogo gosudarstvennogo avtomobil'no-dorozhnogo uni-versiteta. 2018. 15. 2 (60). P. 294 - 304. (rus.)
7. Rajabi A.M., Omidi Moaf F., Abdelgader H.S. Evaluation of Mechanical Properties of Two-Stage Con-crete and Conventional Concrete Using Nondestructive Tests. Journal of Materials in Civil Engineering. 2020. 32 (7). 04020185.
8. Fedjuk R.S., Smoljakov A.K., Timohin R.A. Stroitel'nye materialy dlja vojskovoj fortifika-cii. XVIII Vserossijskaja nauchno-prakticheskaja konferencija molodyh uchenyh, aspirantov i stu-dentov v g. Nerjun-gri, s mezhdunarodnym uchastiem, posvjashhennoj 25-letiju so dnja obrazovanija Teh-nicheskogo instituta (filiala) SVFU: Materialy konferencii. Sekcii 1-3. 2017. P. 109 - 113. (rus.)
9. Villoria Sáez P., Osmani M. A diagnosis of construction and demolition waste generation and recovery practice in the European Union. Journal of Cleaner Production. 2019. 241. 118400.
10. Zhang C., Hu M., Yang X., Miranda-Xicotencatl B., Tukker A. Upgrading construction and demoli-tion waste management from downcycling to recycling in the Netherlands. Journal of Cleaner Production. 2020. 266. 121718.
11. Lederer J., Gassner A., Kleemann F., Fellner, J. Potentials for a circular economy of mineral con-struction materials and demolition waste in urban areas: a case study from Vienna. Resources, Conservation and Recycling. 2020. 161. 104942.
12. Shahzad Aslam M., Huang B., Cui L. Review of construction and demolition waste management in China and USA. Journal of Environmental Management. 2020. 264. 110445.
13. Yu B., Wang J., Li J., Lu W., Xu X. Quantifying the potential of recycling demolition waste generated from urban renewal: A case study in Shenzhen, China. Journal of Cleaner Production. 2020. 247. 119127.
14. Ansari M., Hassan Ehrampoush M. Quantitative and qualitative analysis of construction and demoli-tion Shenzhen, China. Journal of Cleaner Production. 2020. 263. 121371.
15. Cha G.-W., Jun Moon H., Kim Y.-C., Hong W.-H., Hwang J.-H. Evaluating recycling potential of demolition waste considering building structure types: A study in South Korea. Journal of Cleaner Produc-tion. 2020. 256. 120385.
16. AlZaghrini N, Jordan Srour F., Srour I. Using GIS and optimization to manage construction and demolition waste: The case of abandoned quarries in Lebanon. Waste Management. 2019. 95. P. 139 - 149.
17. Amorim Beja I., Motta R., Bariani Bernucci L. Application of recycled aggregates from construction and demolition waste with Portland cement and hydrated lime as pavement subbase in Brazil. Construction and Building Materials. 2020. 258. 119520.
18. Silva R.V., de Brito J., Dhir R.K. Performance of cementitious renderings and masonry mortars con-taining recycled aggregates from construction and demolition wastes. Construction and Building. 2016. 105. P. 400 - 415
19. Yang D., Liu M., Ma Z. Properties of the foam concrete containing waste brick powder derived from construction and demolition waste. Journal of Building Engineering. 2020. 101509.
20. Kumar G., Shrivastava S., Gupta R.C. Paver blocks manufactured from construction & demolition waste. Materials Today: Proceedings. 2020. 27 (12). P. 311 - 317.
21. Sáez del Bosque I.F., Van den Heede P., De Belie N., Sánchez de Rojas M.I., Medina C. Freeze-thaw resistance of concrete containing mixed aggregate and construction and demolition waste-additioned cement in water and de-icing salts. Construction and Building Materials. 2020. 259. 119772.
22. Kumar Das S., Shrivastava S. A study on the viability of fly ash and construction and demolition waste as geopolymerized masonry mortar and their comparative analysis. Materials Today: Proceedings. 2020.
23. Fedjuk R.S., Mochalov A.V., Lesovik V.S. Sovremennye sposoby aktivacii vjazhushhego i beton-nyh smesej (obzor). Vestnik Inzhenernoj shkoly Dal'nevostochnogo federal'nogo universiteta. 2018. 4 (37). S. 85 - 99. (rus.)
24. Fedjuk R.S., Smoljakov A.K., Timohin R.A. Stroitel'nye materialy dlja vojskovoj fortifi-kacii. XVIII Vserossijskaja nauchno-prakticheskaja konferencija molodyh uchenyh, aspirantov i stu-dentov v g. Nerjun-gri, s mezhdunarodnym uchastiem, posvjashhennoj 25-letiju so dnja obrazovanija Teh-nicheskogo instituta (filiala) SVFU: Materialy konferencii. Sekcii 1-3. 2017. P. 109 - 113. (rus.)
