Building Materials and Products

Slavcheva G.S., Kim L.V.

GALINA S. SLAVCHEVA, Doctor of Technical Sciences, Professor, Voronezh State Architecture-Construction University, Voronezh. 84, 20th Anniversary of October St., Voronezh, Russia, 394006, e-mail: gslavcheva@yandex.ru 
LEV V. KIM, Candidate of Technics, Associate Professor, Far Eastern Federal University, Vladivostok. 8 Sukhanova St., Vladivostok, Russia, 690950, e-mail: kim_lvl@dvfu.ru

Mechanisms and relationships of strength changes of concretes relating to its temperature-moisture state

The paper presents a generalised interpretation of the mechanism of the interconnection of the concrete strength characteristics with the temperature and moisture conditions. It contains the results of the study which allow revealing the relationships between the parameters of the composition and structure of high-strength modified concrete relating and the variations of their strength characteristics in dry and water-saturated conditions with the temperature ranging between – 60 and + 600C.

Key words: high performance concrete, temperature, moisture, strength, Rebinder effect.

REFERENCES

1.      Verbitsky L.N. Durability of concrete in water media / Durability of concrete: proc. Moscow, Stroyizdat, 1976. P. 145-147. (in Russ.) 

2.      Ivanova O.S., Krylov B.A. Influence of some technology factors on concrete durability in frozen state. Concrete and reinforced concrete. 1972;11:26-28. (in Russ.) 

3.      Mironov S.A., Lagoyda A.V. Concrete hardening on a frost. M., Stroyizdat, 1974, 156 p. (in Russ.) ].

4.      Piradov K.A. Exhaustion of a resource of concrete at temperature and moisture and load influences. Concrete and reinforced concrete. 1997;6:26-28. (in Russ.) ]

5.      Slavcheva G.S. Influence of a temperature and moisture state on regularities of change of indicators of resistance to destruction of concretes. News of civil engineers. 2010;1:15-19. (in Russ.) ].

6.      Slavcheva G.S., Chernyshov E.M. Regularities of change of strength characteristics of concrete in various moisture state. OGASA Bulletin. Odessa, 2010(2)39:255-260. (in Russ.) ].

7.      Slavcheva G.S., Chernyshov E.M. To a problem of realization of constructional potential of hi-tech concrete taking into account action of Rebinder effect in processes of their destruction. Proc. 8th International conference on mechanics of destruction of structural materials and designs. Kazan, 2014, р. 308-311. (in Russ.) ].

8.      Chernyshov E.M., Dyachenko E.I. Change of viscosity of destruction of silicate cellular concrete / Durability of designs from cellular concrete: materials conference. Tallinn, 1987. Pt. 1. P. 208-210. (in Russ.) 9.      Bekker A.T., Uvarova T.E., Kim S.D. Abrasion effect of ice cover on supports of structures in conditions of Sakhalin island shelf. Proc. Int. Offshore and Polar Engineering conference, Honolulu, 2003. P. 222-227.

10. Fossa K., Bekker A.T. Cold climate challenges with focus on ice loading and ice abrasion. Proc. INTSOK conference. St. Petersburg, 2011, p. 87-92.

11. Moen E., Jacobsen S., Myhra H. Ice abrasion data on concrete structures – an overview state of the art. COIN Report, Project No. 3D005841, Trondheim, Norway, 2007, 62 p.