| Summary: | 碩士 === 國立交通大學 === 土木工程研究所 === 83 === If the light-weight concrete is used in building a high rise
,it can reduce building''sweight because of its weight is
lighter than the normal-weight concrete,and reduce the process
of earthquake corresponding.On the other side,its fire proof
properties are better than the normal-weight concrete.In these
years,fire damage made great losses of life and money,if we
want to employ the light-weight concrete to building structure,
it is necessary to research its thermal properties in the
process of a fire. The research has different aggregates of
four specific gravity in making concrete,heated with ASTM E119
standard fire temperature-time relation to 1052 ℃,measure
their surplus strength,weight,dynamic elastic modulus,
ultrasonic velocity after cooling,temperature-time relation in
concrete interior during heating,and concrete''s extreme thermal
expansion strain, thermal expansion cofficient. With the result
that we can see the thermal properties of the light-weight
concrete after a fire are better than the normal-weight
concrete,so if a construction is built in the light-weight
concrete,it can reduce fire damage effectively.
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