TY - BOOK
T1 - Comparison of codes concerning winter concreting in Finland and in the Soviet Union
AU - Miettinen, Heikki
AU - Vuorinen, Jukka
AU - Kukko, Heikki
PY - 1981
Y1 - 1981
N2 - In this study the codes and instructions concerning
winter concerning in Finland and in the Soviet Union are
compared with each other. The purpose of this comparison
is to serve the needs of Finnish building projects in the
Soviet Union, in weather conditions similar to those in
Finland.
This comparison of codes is concerned with concreting on
building site only. In addition to the codes proper also
some Finnish publications on winter concreting of
instructive nature were studied . Instructions and
special methods of winter concreting used in the Soviet
Union are not dealt with in this study.
It is difficult to compare the codes and instructions of
our countries as they are. In the study, the code
regulations are classified in the sequence of the
technical procedure of the building process. Similarities
and essential differences of parallel code regulations
are examined in the comparison.
The temperature of concrete is observed to ensure the
strength development. According to Finnish practice,
temperature measurements are carried out so that the
maturity and strength of concrete can be estimated
reliably. In the Soviet Union on the other hand it is
ascertained by measurements that hardening temperature
corresponds with the requirements of technological cards,
which are primarily based on experimental results of
concrete strength development. The strength development
is always, however, ascertained by the test specimens
stored in curing conditions similar to those of the
structures.
The number of the code regulations concerning the use of
admixtures is by far greater in the Soviet Union than in
Finland and not so strict as the Finnish ones.
In the codes, regulations and instructions for the
temperature of fresh concrete refer to different periods
of concreting. The temperature requirements are, however,
approximately of similar order.
The freezing strength requirements are in the codes of
the Soviet Union considerably higher as compared with the
Finnish freezing strength requirements. The difference
results from the different attitude towards setting the
requirements, because in the Soviet codes the freezing
strength is connected with the strength necessary for
load-bearing capacity of the structure.
AB - In this study the codes and instructions concerning
winter concerning in Finland and in the Soviet Union are
compared with each other. The purpose of this comparison
is to serve the needs of Finnish building projects in the
Soviet Union, in weather conditions similar to those in
Finland.
This comparison of codes is concerned with concreting on
building site only. In addition to the codes proper also
some Finnish publications on winter concreting of
instructive nature were studied . Instructions and
special methods of winter concreting used in the Soviet
Union are not dealt with in this study.
It is difficult to compare the codes and instructions of
our countries as they are. In the study, the code
regulations are classified in the sequence of the
technical procedure of the building process. Similarities
and essential differences of parallel code regulations
are examined in the comparison.
The temperature of concrete is observed to ensure the
strength development. According to Finnish practice,
temperature measurements are carried out so that the
maturity and strength of concrete can be estimated
reliably. In the Soviet Union on the other hand it is
ascertained by measurements that hardening temperature
corresponds with the requirements of technological cards,
which are primarily based on experimental results of
concrete strength development. The strength development
is always, however, ascertained by the test specimens
stored in curing conditions similar to those of the
structures.
The number of the code regulations concerning the use of
admixtures is by far greater in the Soviet Union than in
Finland and not so strict as the Finnish ones.
In the codes, regulations and instructions for the
temperature of fresh concrete refer to different periods
of concreting. The temperature requirements are, however,
approximately of similar order.
The freezing strength requirements are in the codes of
the Soviet Union considerably higher as compared with the
Finnish freezing strength requirements. The difference
results from the different attitude towards setting the
requirements, because in the Soviet codes the freezing
strength is connected with the strength necessary for
load-bearing capacity of the structure.
KW - concreting
KW - winter
KW - standards
M3 - Report
SN - 951-38-1224-3
T3 - Valtion teknillinen tutkimuskeskus. Tiedotteita
BT - Comparison of codes concerning winter concreting in Finland and in the Soviet Union
PB - VTT Technical Research Centre of Finland
CY - Espoo
ER -