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Kinetyka nasączania wodą zapraw cementowych modyfikowanych emulsją bitumiczną
Języki publikacji
Abstrakty
Concrete permeability is a major factor that affects durability and reliability of structures – bridges, tunnels, culvert pipes, etc. It is important to identify effective methods of protection of such structures against water penetration, for example by using a modifying substance. Samples of cement mortar composites were used for water absorption simulation. Bitumen emulsion was used as a modifying agent. According to the water absorption kinetics, the following parameters of the pore microstructure of the mortar composite were estimated: the index of mean size of open capillary pores, closed porosity, and the index of size uniformity. The research has shown that the addition of bitumen emulsion decreases the pore space and macrocapillaries (from 23.91% to 6.61%), water absorption (3 times), and the index of mean size of open capillary pores (from 0.69 to 0.3) of modified mortars.
Odpowiednio niska przepuszczalność betonu to jeden z głównych czynników zapewniających trwałość i niezawodność konstrukcji budowlanych – mostów, tuneli, przepustów itd. Istotne jest zidentyfikowanie skutecznych metod zabezpieczenia takich konstrukcji przed wnikaniem wody, na przykład za pomocą dodatków modyfikujących. Badania nasiąkliwości przeprowadzono na próbkach zaprawy cementowej zawierającej dodatek emulsji asfaltowej. Na podstawie kinetyki wnikania wody w próbki oszacowano następujące parametry uzyskanej mikrostruktury porów: wskaźnik średniej wielkości otwartych porów kapilarnych, porowatość zamkniętą oraz wskaźnik jednorodności wielkości otwartych porów kapilarnych. Wyniki wykazały, że dodatek emulsji asfaltowej zmniejszył objętość porów i makrokapilar (z 23,91% do 6,61%), nasiąkliwość (trzykrotnie) oraz wskaźnik średniej wielkości kapilar otwartych (z 0,69 do 0,3) zapraw poddanych modyfikacji dodatkiem.
Wydawca
Czasopismo
Rocznik
Tom
Strony
167--178
Opis fizyczny
Bibliogr. 21 poz., rys., tab.
Twórcy
autor
- Ukrainian State University of Railway Transport, Department of Building Materials, Constructions and Structures, 7 Feuerbach Sq., Kharkiv, 61050, Ukraine Rezunenko Maryna
autor
- Ukrainian State University of Railway Transport, Department of Higher Mathematics and Physics, 7 Feuerbach Sq., Kharkiv, 61050, Ukraine
autor
- O.M.Beketov National University of Urban Economy, Department of Building Constructions, 17 Marshal Bazhanov St., Kharkiv, 61002, Ukraine
autor
- Ukrainian State University of Railway Transport, Department of Mechanical Engineering and Technical Service of Machines, 7 Feuerbach Sq., Kharkiv, 61050, Ukraine
autor
- National Technical University “Kharkiv Polytechnic Institute”, Department of Machine Components and Hydropneumatic Systems, 2 Kyrpychova St., Kharkiv, 61002, Ukraine
Bibliografia
- 1. Sekkal W., Zaoui A., Benzerzour M., Abriak N.: Role of porosity on the stiffness and stability of (001) surface of the nanogranular C-S-H gel. Cement and Concrete Research, 87, 2016, 45-52, DOI: 10.1016/j.cemconres.2016.04.014
- 2. Tracz T.: Open porosity of cement pastes and their gas permeability. Bulletin of the Polish Academy of Sciences Technical Sciences, 64, 4, 2016, 775-783, DOI: 10.1515/bpasts-2016-0086
- 3. Kurumisawa K., Nawa T.: Electric conductivity and chloride ingress in hardened cement paste. Journal of Advanced Concrete Technology, 14, 3, 2016, 87-94, DOI: 10.3151/jact.14.87
- 4. Ossola G., Wojcik A.: UV modification of tire rubber for use in cementitious composites. Cement and Concrete Composites, 52, 2014, 34-41, DOI: 10.1016/j.cemconcomp.2014.04.004
- 5. Sanish K.B., Neithalath N., Santhanam M.: Monitoring the evolution of material structure in cement pastes and concretes using electrical property measurements. Construction and Building Materials, 49, 2013, 288-297, DOI: 10.1016/j.conbuildmat.2013.08.038
- 6. Alahrache S., Winnefeld F., Champenois J.B., Hesselbarth F., Lothenbach B.: Chemical activation of hybrid binders based on siliceous fly ash and Portland cement. Cement and Concrete Composites, 66, 2016, 10-23, DOI: 10.1016/j.cemconcomp.2015.11.003
- 7. Trykoz L.V., Romanovich E.V., Bagiyants I.V.: Development of a method to increase the reliability of a ballast prism by increasing its service life. Railway Transport of Ukraine, 5-6, 2016, 16-22
- 8. Trykoz L.V., Bagiyanc I.V., Nykytynskyj A.V.: Investigation into the Impact of Bitumen Emulsion upon the Electrical Resistance of the Cement and Sand Grout. International Journal of Engineering Research in Africa, 29, 2017, 98-103, DOI: 10.4028/www.scientific.net/JERA.29.98
- 9. Peng Y., Zhao G., Qi Y., Zeng Q.: In-situ assessment of the water-penetration resistance of polymer modified cement mortars by μ-XCT, SEM and EDS. Cement and Concrete Composites, 114, 2020, 103821, DOI: 10.1016/j.cemconcomp.2020.103821
- 10. Herb H., Gerdes A., Brenner-Weiß G.: Characterization of silane-based hydrophobic admixtures in concrete using TOF-MS. Cement and Concrete Research, 70, 2015, 77-82, DOI: 10.1016/j.cemconres.2015.01.008
- 11. Horgnies M., Chen J.J.: Superhydrophobic concrete surfaces with integrated microtexture. Cement and Concrete Composites, 52, 2014, 81-90, DOI: 10.1016/j.cemconcomp.2014.05.010
- 12. Jia L., Shi C., Pan X., Zhang J., Wu L.: Effects of inorganic surface treatment on water permeability of cement-based materials. Cement and Concrete Composites, 67, 2016, 85-92, DOI: 10.1016/j.cemconcomp.2016.01.002
- 13. Wang M., Wang R., Yao H., Farhan S., Zheng S., Wang Z., Du C., Jiang H.: Research on the mechanism of polymer latex modified cement. Construction and Building Materials, 111, 2016, 710-718, DOI: 10.1016/j.conbuildmat.2016.02.117
- 14. Almesfer N., Ingham J.: Effect of waste latex paint on concrete. Cement and Concrete Composites, 46, 2014, 19-25, DOI: 10.1016/j.cemconcomp.2013.10.017
- 15. Demura K., Saito T., Takeda M.: Effect of polymer content on resistance to water permeation and durability of polymer-modified mortars. Cement Science and Concrete Technology, 73, 1, 2020, 95-102, DOI: 10.14250/cement.73.95
- 16. He L., Ma Y., Liu Q., Mu Y.: Surface modification of crumb rubber and its influence on the mechanical properties of rubber-cement concrete. Construction and Building Materials, 120, 2016, 403-407, DOI: 10.1016/j.conbuildmat.2016.05.025
- 17. Baghini M.S., Ismail A., Bin Karim M.R.: Evaluation of cement-treated mixtures with slow setting bitumen emulsion as base course material for road pavements. Construction and Building Materials, 94, 2015, 323-336, DOI: 10.1016/j.conbuildmat.2015.07.057
- 18. Garilli E., Autelitano F., Godenzoni C., Graziani A., Giuliani F.: Early age evolution of rheological properties of over-stabilized bitumen emulsion-cement pastes. Construction and Building Materials, 125, 2016, 352-360, DOI: 10.1016/j.conbuildmat.2016.08.054
- 19. Li W., Mao Z., Xu G., Hong J., Chang H., Zhao H., Liu Z.: The microstructure evolution of cement paste modified by cationic asphalt emulsion. Advances in Cement Research, 33, 10, 2021, 436-446, DOI: 10.1680/jadcr.19.00164
- 20. Remya V., Koshy H. E.: Natural polymer as waterproofing compound in cement concrete. International Journal of Modern Trends in Engineering and Research, 3, 12, 2016, 128-134, DOI: 10.21884/IJMTER.2016.3159.PTNIV
- 21. National Standards of Ukraine. DSTU B V.2.7-170:2008: Building materials. Concretes. Methods of determination of average density, moisture content, water absorption, porosity and impermeability (in Ukrainian). Ministry of Regional Development, Construction and Housing Policy, Kyiv, 2009
Uwagi
Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).
Typ dokumentu
Bibliografia
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