AbstractAbout AuthorsReferences
Theoretical and experimental studies for revealing the factor of influence of natural carbonization (under the impact of atmospheric carbon dioxide) on the long-term deformability of bending reinforced concrete elements made of gas-ash concrete of autoclave hardening are presented. It is established that the main reason for increasing long-term deflections of carbonized bending elements comparing with non-carbonized ones is a significant influence of the carbonization factor on the value of concrete creep in the compressed zone. It is shown that in the case of the long-term loading the method of Professor I.I. Ulitsky based on the theory of aging can be used for determining deflections of cellular concrete bending elements at any moment of time and predicting their maximum values with due regard for carbonization, if the values of creep characteristics obtained on concrete prisms are known. It is recommended to take into account the influence of natural carbonization when calculating the long-term deformability of cellular concrete bending elements by adopting the value of the factor ν, characterizing the concrete creep in the compressed zone, as equal to 0.1 instead of 0.2 at relative humidity of the environment of 40–75%
V.P. VYLEGZHANIN1 , Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
D.K-S. BATAEV2 , Doctor of Sciences (Engineering), Director (This email address is being protected from spambots. You need JavaScript enabled to view it.);
M.A. GAZIEV3 , Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
G.I. GRINFELD4 , Engineer, Executive Director(This email address is being protected from spambots. You need JavaScript enabled to view it.)
D.K-S. BATAEV2 , Doctor of Sciences (Engineering), Director (This email address is being protected from spambots. You need JavaScript enabled to view it.);
M.A. GAZIEV3 , Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.);
G.I. GRINFELD4 , Engineer, Executive Director(This email address is being protected from spambots. You need JavaScript enabled to view it.)
1 Center of Cellular Concretes (1/3, Off. 308 Zodchego Rossi Street, 191023 St. Petersburg, Russian Federation)
2 Complex Institute named after Kh.I. Ibragimov of the Russian Academy of Sciences (21a, Staropromyslovskoye Shosse, Grozny, Chechen Republic, Russian Federation)
3 Grozny State Oil Technical University named after acad. M.D. Millionshchikov (100 Ordzhonikidze Square, Grozny, Chechen Republic 364051, Russian Federation) 4 National Association of Autoclave Gas Concrete Manufactures (40a, Oktyabrskaya Embankment, 193091 St. Petersburg, Russian Federation)
1. Makarichev V.V., Mileikovskaya K.M. Issledovanie armirovannykh konstruktsii iz yacheistykh betonov [The study reinforced structures of cellular concrete]. Moscow: Gosstroyizdat. 1963. 99 p.
2. Silaenkov E.S. Dolgovechnost’ izdelii iz yacheistykh betonov [Durability of products from cellular concrete]. Moscow: Stroyizdat. 1986. 176 p.
3. Silaenkov E.S., Bataev D.K.-S., Mazhiev Kh.N., Gaziev M.A. Povyshenie dolgovechnosti konstruktsii i izdelii iz melkozernistykh yacheistykh betonov pri ekspluatatsionnykh vozdeistviyakh [Increasing the durability of structures and products from fine-grained porous concrete with performance impacts]. Grozniy. 2015. 355 p.
4. Gaziev M.A., Kleshchev F.I. Opyt dlitel’noi ekspluatatsii sovmeshchennykh pokrytii iz yacheistobetonnykh plit v gorode Sverdlovske. V kn.: Proizvodstvo i primenenie yacheistykh betonov v zhilishchno-grazhdanskom stroitel’stve [Experience of prolonged use of combined coatings of porous concrete slabs in the city of Sverdlovsk. In the book: The production and use of cellular concrete in housing and civil construction]. Leningrad. 1986, pp. 56–59.
5. Gaziev M.A. Metodika opredeleniya deformatsii polzuchesti avtoklavnykh yacheistykh betonov s uchetom ikh stareniya ot deistviya uglekislogo gaza. V kn.: Dolgovechnost’ konstruktsii iz avtoklavnykh betonov [Method for determining creep strain autoclaved aerated concrete in view of their aging from the effects of carbon dioxide. In the book: The durability of structures made of autoclaved concrete]. Tallin. 1984. Part I, pp. 167–169.
6. Prokopovich I.E., Zedgenidze V.A. Prikladnaya teoriya polzuchesti [Applied theory of creep]. Moscow: Stroyizdat. 1980. 210 p.
7. Ulitskiy I.I. Teoriya i raschet zhelezobetonnykh sterzhnevykh konstruktsii s uchetom dlitel’nykh protsessov [Theory and calculation of reinforced concrete beam structures, taking into account long-term processes]. Kiev: Budivel’nik. 1967. 346 p.
8. Vishnevetskii G.D. Osnovy rascheta elementov konstruktsii na polzuchest’ [Bases for design of structural elements creep]. Leningrad: LISI. 1980. 82 p.
9. Kalnais A.A., Teters G.A., Shkerbelis K.K. Issledovanie prochnosti i deformativnosti konstruktivnogo gazobetona. V kn.: Issledovaniya po betonu i zhelezobetonu [Investigation of strength and deformability constructive aerated. In the book: Studies on concrete and reinforced concrete]. Riga. 1959. Vol. 4, pp. 243–261.
10. Makarichev V.V., Trambovetskii V.P. K voprosu o prochnosti yacheistogo betona. V kn.: Yacheistye betony [On the issue of cellular concrete strength. In the book: Cellular concrete]. Leningrad. 1968. Vol. 1, pp. 43–52.
11. Konev Yu.S., Pinsker V.A. Deformativnye osobennosti gazobetonnykh izgibaemykh elementov pri kratkovremennom nagruzhenii. V kn.: Yacheistye betony [Deformability especially aerated concrete bent elements with short-term loading. In the book: Cellular concrete]. Leningrad. 1971. Vol. 4, pp. 46–49.
12. Konev Yu.S. The study of deformation properties of flexible structures made of aerated concrete. Cand. Diss. (Engineering). Leningrad. 1972. 23 p.
13. Aleksandrovskiy S.V. Normirovanie polzuchesti yacheistykh betonov. V kn.: Industrial’nye konstruktsii iz yacheistykh betonov i tekhnologiya ikh izgotovleniya [Rationing creep of cellular concrete. In the book: The industrial structure of cellular concrete and the technology of their production]. Moscow: NIIZhB. 1979, pp. 130–141.
2. Silaenkov E.S. Dolgovechnost’ izdelii iz yacheistykh betonov [Durability of products from cellular concrete]. Moscow: Stroyizdat. 1986. 176 p.
3. Silaenkov E.S., Bataev D.K.-S., Mazhiev Kh.N., Gaziev M.A. Povyshenie dolgovechnosti konstruktsii i izdelii iz melkozernistykh yacheistykh betonov pri ekspluatatsionnykh vozdeistviyakh [Increasing the durability of structures and products from fine-grained porous concrete with performance impacts]. Grozniy. 2015. 355 p.
4. Gaziev M.A., Kleshchev F.I. Opyt dlitel’noi ekspluatatsii sovmeshchennykh pokrytii iz yacheistobetonnykh plit v gorode Sverdlovske. V kn.: Proizvodstvo i primenenie yacheistykh betonov v zhilishchno-grazhdanskom stroitel’stve [Experience of prolonged use of combined coatings of porous concrete slabs in the city of Sverdlovsk. In the book: The production and use of cellular concrete in housing and civil construction]. Leningrad. 1986, pp. 56–59.
5. Gaziev M.A. Metodika opredeleniya deformatsii polzuchesti avtoklavnykh yacheistykh betonov s uchetom ikh stareniya ot deistviya uglekislogo gaza. V kn.: Dolgovechnost’ konstruktsii iz avtoklavnykh betonov [Method for determining creep strain autoclaved aerated concrete in view of their aging from the effects of carbon dioxide. In the book: The durability of structures made of autoclaved concrete]. Tallin. 1984. Part I, pp. 167–169.
6. Prokopovich I.E., Zedgenidze V.A. Prikladnaya teoriya polzuchesti [Applied theory of creep]. Moscow: Stroyizdat. 1980. 210 p.
7. Ulitskiy I.I. Teoriya i raschet zhelezobetonnykh sterzhnevykh konstruktsii s uchetom dlitel’nykh protsessov [Theory and calculation of reinforced concrete beam structures, taking into account long-term processes]. Kiev: Budivel’nik. 1967. 346 p.
8. Vishnevetskii G.D. Osnovy rascheta elementov konstruktsii na polzuchest’ [Bases for design of structural elements creep]. Leningrad: LISI. 1980. 82 p.
9. Kalnais A.A., Teters G.A., Shkerbelis K.K. Issledovanie prochnosti i deformativnosti konstruktivnogo gazobetona. V kn.: Issledovaniya po betonu i zhelezobetonu [Investigation of strength and deformability constructive aerated. In the book: Studies on concrete and reinforced concrete]. Riga. 1959. Vol. 4, pp. 243–261.
10. Makarichev V.V., Trambovetskii V.P. K voprosu o prochnosti yacheistogo betona. V kn.: Yacheistye betony [On the issue of cellular concrete strength. In the book: Cellular concrete]. Leningrad. 1968. Vol. 1, pp. 43–52.
11. Konev Yu.S., Pinsker V.A. Deformativnye osobennosti gazobetonnykh izgibaemykh elementov pri kratkovremennom nagruzhenii. V kn.: Yacheistye betony [Deformability especially aerated concrete bent elements with short-term loading. In the book: Cellular concrete]. Leningrad. 1971. Vol. 4, pp. 46–49.
12. Konev Yu.S. The study of deformation properties of flexible structures made of aerated concrete. Cand. Diss. (Engineering). Leningrad. 1972. 23 p.
13. Aleksandrovskiy S.V. Normirovanie polzuchesti yacheistykh betonov. V kn.: Industrial’nye konstruktsii iz yacheistykh betonov i tekhnologiya ikh izgotovleniya [Rationing creep of cellular concrete. In the book: The industrial structure of cellular concrete and the technology of their production]. Moscow: NIIZhB. 1979, pp. 130–141.
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