Publisher : The Korean Institute of Building Construction
DOI : 10.5345/JKIBC.2016.16.1.035
Title & Authors
Mechanical Performance Evaluation of Cement Paste with Foaming Agent using FEM Analysis Based on Picture Image Kim, Bo-Seok; Shin, Jun-Ho; Lee, Han-Seung;
Concrete is a representative heterogeneous material and mechanical properties of concrete are influenced by various factors. Due to the fact that pores in concrete affect determining compressive strength of concrete, studies which deal with distribution and magnitudes of pores are very important. That way, studies using picture imaging have been emerged. Studies on mechanical performance evaluation of structural lightweight foamed concrete and FEM analysis based on picture image are inadequate because lightweight foamed concrete has been researched for only non-structural. Therefore, in this study, cement paste with foaming agent to evaluate mechanical performance is made, FEM analysis with picture image is conducted and young`s modulus of experiment and analysis are compared. In this study, dosage of foaming agent is determined 7 level to check pore distribution and water-binder ratio is determined 20% to progress research about structural light weight foamed concrete. Weight of unit volume is minimum at 0.8% of foaming agent dosage. However, weight of unit volume is increased over 0.8% of foaming agent dosage because of interconnection with independent pores. For FEM analysis, cement paste is photographed to use image analyzer(HF-MA C01). Consequently, the fact that Young`s Modulus of experiment and FEM analysis are same is drawn by using OOF(Object Oriented Finite elements).
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