Grip of Mature and Fresh Concrete with Heat Treatment in Winter Conditions

Abstract:

Port infrastructure facilities, located in cold climatic zones in contact with sea water, are destroyed due to carbonation of concrete and sulfide corrosion. The restoration of the reinforcement protective layer by standard methods does not provide high-quality grip of the concrete structures that has undergone destruction and the repair concrete. The study of the “old” and “new” concrete grip using forced heating of the “new” one shows that mixing water with cement clinker components dissolved in it penetrates through the pores and capillaries deep into the “old” concrete to a depth of 60–70 mm under the temperature factor influence. After hardened concrete got its standard strength, it exceeds concrete grip, hardened under normal conditions by 30%.

• Periodical: Materials Science Forum (Volume 992)
• Pages: 111-117
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.992.111
• Online since: May 2020
• Authors: V.V. Molodin*, S.E. Sarafyan, D.S. Kasyanova
• Keywords: Hardened Concrete, Mature Concrete, New Concrete, Old Concrete, Port Infrastructure Facilities, Resh Concrete

References

[1] V.F. Utenkov, M.A. Vlasova, Sealing joints of prefabricated reinforced concrete structures in winter conditions. M.: Stroyizdat, 1958, 62.

[2] R. Feret, Resistances des betons a cohc a luster et dekolement compares a la compression, a la flexion, a la traction. Paris, (1930).

[3] V.N. Romanovsky, On the issue of concrete grip at the junction of industrial equipment and the foundation, Bulletin of Civil Engineers. 5 (40). (2013) 127-130.

[4] A.V. Lykov, Heat and mass transfer, M: Energy, 1978, 480.

[5] I.F. Belova, V.Ya. Gendin, V.E. Leirich, Conductometric studies of the moisture transfer kinetics in concrete joints, Concrete and reinforced concrete. 8 (1969) 11-13.

[6] A.M. Ibragimov, Unsteady heat and mass transfer in multilayer enclosing structures: dis. ... cand. tech. sciences, Moscow, 2006, 348.

[7] O.P. Mchedlov-Petrosyan, Chemistry of inorganic building materials, M, 1971, 22.

[8] V.Ya. Gendin, A.D. Myagkov, L.S. Goncharov, A conductometric method for studying mass transfer at the joints to select the type and amount of antifrosty additives when monopolizing in winter conditions, Collection of articles, Tomsk: TSU, 1985, 129.

[9] V.V. Shcherba, Concreting technology of monolithic buildings constructions with protection of concrete from dehydration by applying film-forming materials: dis. ... cand. tech. sciences. Moscow, 2005, 119.

[10] V.N. Sizov, Construction work in winter conditions, M: Stroyizdat. 1958, 539.

[11] A.I. Kitaygorodsky, X-ray analysis, M: Stroyizdat, 1950, 65.

[12] Yu.M. Butt, V.V. Timashev, Portland cement, M: Stroyizdat, 1974, 328.

[13] S.G. Golovnev, S.B. Koval, M.V. Molodtsov, Concrete grip in the technological seam zone, Vestnik SUSU. 13 (2005) 71-74.