Font Size: a A A

Study of biopolymer-modified concrete system: Geopolymerization of biopolymers

Posted on:2005-05-23Degree:Ph.DType:Dissertation
University:University of Southern CaliforniaCandidate:Kim, DaeikFull Text:PDF
GTID:1452390008992928Subject:Engineering
Abstract/Summary:
This study describes the new material modified by biopolymers in a concrete system. New structure caused by biopolymer involvement was evaluated by instrumental analyses such as XPS (X-ray Photoelectron Spectroscopy), FTIR (Fourier Transform Infrared), and XRD (X-ray Diffraction). TCLP (Toxicity Characteristic Leaching Procedure) and SPLP (Synthetic Precipitation Leaching Procedure) were also conducted to witness biopolymers' capacity of binding the wastes such as Cathode Ray Tubes (CRT) glass and selenium in a concrete system. For the first time, this study will also explain the definition of geopolymer, its structure, formation of geopolymer.; Resultant products in practices such as CRT glass showed very high compressive strength and low lead leachability. For selenium waste in a practical case, it supports the opportunity for commercialization of this technology. Only a minute amount of biopolymers is effective in binding metals and providing high strength of workable products.; The organic containing concrete is the first monument discovery in the cement chemistry, and even in the chemistry world. The geopolymerization of biopolymer is also new research that the simple Maillard reaction in biopolymers can help simulate a possible pathway for the geopolymerization phenomena in natural environment. Melanoidin as a marker was hired to interpret the process of geopolymerization where biopolymers may convert to geopolymers. More than any other things, geopolymerizaion concept has become enlightened in this study and at the same time is able to project to the future applications that have been under the shade of a biased definition of geopolymer. Herein, new definition can therefore broaden the scope of the geopolymer and its future.
Keywords/Search Tags:Concrete system, Biopolymers, Geopolymer, New
Related items