As the construction of high-rise building becomes popular, improvement and innovation are required
to expand the product line of lightweight concrete. In this paper, two ways of fabricating lightweight concrete
were combined to make a new kind of super lightweight concrete. Normal aggregate is replaced with expanded
polystyrene (EPS) granule, while foam is introduced to facilitate fabrication process. As a result, super lightweight
concrete denoted as EPS foamed concrete is fabricated, whose bulk density is less than 500 kg/m3. Compressive
properties of EPS foamed concrete with bulk density 300—500 kg/m3 were investigated by stress-strain curve.
It’s demonstrated that the compressive strength ranges from 0.7 to 2.5MPa, which is higher than that of similar
products. Furthermore, low elastic module and high residual to ultimate strength ratio ensure its excellent
deformation and energy absorption capacity. At last, numerical analysis was performed to interpret the inherent
variation of elastic modulus and failure mechanism of this material. The results show that EPS foamed concrete is
a kind of super lightweight, easy to fabricate material with excellent compressive property and profound utilization
potential.
WU Zhen (吴震), CHEN Bing* (陈兵), LIU Ning (刘宁)
. Fabrication and Compressive Properties of Expanded Polystyrene Foamed Concrete: Experimental Research and Modeling[J]. Journal of Shanghai Jiaotong University(Science), 2013
, 18(1)
: 61
-69
.
DOI: 10.1007/s12204-013-1369-2
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