Zobrazeno 1 - 9
of 9
pro vyhledávání: '"I. E. Pukhov"'
Autor:
I. E. Pukhov
Publikováno v:
Hydrotechnical Construction. 35:370-372
Publikováno v:
Hydrotechnical Construction. 24:781-787
FPGD additive does not modify significantly the basic ratios of the deformational characteristics of concrete. The basic equivalence principle for selection of concrete compositions with FPGD does not introduce any change in the standard values of pr
Publikováno v:
Hydrotechnical Construction. 17:366-370
Concrete prepared with large tabular gravel has anisotropic elastic properties. This anisotropy changes with time from maximum at an early age to minimum at a late age. At an age of one year the elastic properties of concrete with tabular gravel are
Autor:
I. E. Pukhov
Publikováno v:
Hydrotechnical Construction. 12:356-362
1. Concretes of different compositions, differing substantially in the value of creep at an early age, on loading at later ages have a tendency to equalize the values of creep. Creep of old massive concrete does not appreciably depend either on its c
Autor:
I. E. Pukhov, G. N. Kuleshov
Publikováno v:
Hydrotechnical Construction. 15:743-749
1. The rate of increase of the modulus of elasticity of concrete at an early age directly in the dam depends on the ambient temperature associated with exothermic heating of the cement in the concrete, season of concreting, etc. In the case of heatin
Autor:
I. E. Pukhov
Publikováno v:
Hydrotechnical Construction. 11:52-55
1. The most widely used laboratory method for investigating massive concrete in a structure is conditional and only approximately reflects the properties of the concrete. 2. A study of the elastoplastic characteristics of concrete of massive structur
Autor:
I. E. Pukhov
Publikováno v:
Hydrotechnical Construction. 11:777-781
1. For identical concrete compositions and temperature and moisture regimes of its aging, the modulus of elasticity in the mass of the structure and large laboratory specimens prepared without screening out the coarsest aggregate agree closely. 2. Th
Autor:
I. E. Pukhov
Publikováno v:
Hydrotechnical Construction. 22:502-505
1. During 50 years of operation of the Moscow Canal the surface of the concrete walls of the lock chambers was subjected to considerable destruction with the formation of cavities, cracks, and sloughs with exposure of the corroded reinforcement. 2. D
Autor:
I. E. Pukhov, A. D. Osipov
Publikováno v:
Hydrotechnical Construction. 12:621-623
1. The table of the modulus of elasticity of concrete Ec given in SNiP II-57-77 should be used for concrete with a small coarse aggregate particle diameter and with a large proportion of the mortar component. The design age of concrete in this case s