Magazine of Civil Engineering, No.7(42), 2013
Building materials and articles. Technology and
organization of construction
for this half-year
Read the article (rus) >>>
A.S. Gorshkov, N.A. Sokolov
The article presents a comparative analysis of
international and Russian regulatory procedures for determining the
thermal conductivity of building materials and products. It was shown
methods for determination of design thermal values, accepted by
standards, are more appropriate. The authors believe that in order to
situation, in determining the design values of the thermal conductivity
building materials, Russian standards should be harmonized with
V.P. Selyaev, V.A.
Neverov, O.G. Mashtaev, A.V. Kolotushkin
The article shows the results of the research of
silica fume particles procured from diatomite from Atemar deposit by
separating silicic acid from colloidal dissolved state into the
objective of the work was to define thermal-physical and structural
characteristics of the silica fume.
N.M. Morozov, V.I. Avksentiev, I.V.
Borovskikh, V.G. Khozin
In the course of the research the compounds of
self-compacting concrete with the use of waste powder of rubble
obtained. For such concretes the optimal
superplasticizer, featuring additional stabilizing effect that allows
a homogeneous concrete mix, was selected. The results of the study show
relation between cement consumption and viscosity of concrete mix; the
dependence of the superplasticizer consumption on the cement type.
A.V. Ulybin, S.A. Startsev, S.V.
The problems of wetting of masonry structures were considered: its
causes, consequences and methods of humidity control. The
destructions that occur in the masonry as a result of its moistening
given. Destruction processes under
wetting of different origin were briefly described. The experimentally
ascertained impact of humidity on the strength of
different kinds of brick was presented.
The research task was
mathematical modeling of the growing dynamics of gradual failures of
components of the building during the operation time based on normative
Russian design code VSN 53-86(r); the calculation and modeling of the
costs dynamics as a percentage of the estimated cost of construction
the value of physical deterioration of structures.
S.A. Bolotin, A.Kh. Dadar, M.A.
The objective of the
research was the problem of optimal priorities of the buildings'
major repairs. For solving this problem
the definition of serial importance of project was introduced and the
of this serial importance was reviewed. The model of the space-time
based on the category of the aerial perspective and horizon was
Authors use methods of technical regulation and
scheduling, previously obtained in structural-functional modeling
production and mounting of glass curtain walls. The article shows the
application of these standards in determining the time of producing
glass facade elements for particular building sites, as well as in the
synchronized scheduling production and mounting of these structures.
The work is devoted to the determination of the
efficiency of piles of various cross-sectional forms (round, square,
shaped, T-shaped and double tee forms). A
number of methods and criteria for quantitative evaluation of the
efficiency of piles were proposed. Furthermore, the results of studies
pile efficiency depending on the driving depth at the above-mentioned
cross-sections were given.