| Summary: | 碩士 === 國立成功大學 === 土木工程學系碩博士班 === 98 === A combination of 30 wt% blast furnace slag and 70 wt.%
metakaolin was used as a raw material for the production of inorganic
polymers. Foamed inorganic polymers with various density and
thickness were made by using the alkali activating solution of sodium
hydroxide and sodium silicate and the mechanical foaming process.
Four different densities including 0.4, 0.5, 0.6 and 0.70.g/cm3 and four
different thicknesses of 4, 6, 8 and 10cm of foamed inorganic
polymers were produced. At first, the viscosity, water absorption,
pore size distribution, compressive strength and flexural strength of
the foamed inorganic polymer specimens were tested. Also, the
transmission loss of the foamed inorganic polymers with different
density and thickness were measured and compared to each other to
evaluate the effects of density and thickness. Consequently, the
optimum density and thickness were determined from experimental
results. Under the condition of the obtained optimum density and
thickness, the transmission losses of foamed inorganic polymers with
three different cell sizes were measured and then compared.
The microstructure characterization and the experimental results
of mechanical properties indicate that the quality control of foamed
inorganic polymers we produced is good. In addition, the optimum
thickness and density of foamed inorganic polymers without surface
coating are found to be 8cm and 0.6g/cm3 respectively from the
experimental measurements of transmission loss. However, theeffects of thickness and density become insignificant if foamed
inorganic polymers are coated on their both surfaces. Here, the
effect of cell size on the transmission loss of foamed inorganic
polymers with a density of 0.6g/cm3 and a thickness of 8cm can be
neglected even the larger cell size is 3 times of the smaller cell size.
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