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Journal of Elastomers and Plastics
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Polymer Concrete from Marble Wastes and Recycled Poly(ethylene terephthalate)

M. E. Tawfik

Department of Polymers and Pigments, National Research Center, Dokki, Cairo, Egypt, magdaemileta{at}yahoo.com

S. B. Eskander

Radioisotopes Department, Atomic Energy Authority, Egypt

A polymer concrete (PC) was synthesized by mixing styrenated polyester (SP) and marble wastes as fillers. The unsaturated polyester (UP) used was prepared from the reaction of oligomers obtained from the depolymerization of polyethylene terephthalate (PET) soft drink bottles with maleic anhydride and adipic acid. The UP was then mixed with the styrene monomers at a ratio of 60: 40% by weight to obtain the SP used for the synthesis of the PC. The aim of this work is to study the suitability of the prepared PC to be used as polymer based building materials. Using marble and PET soft drink bottle wastes for the preparation of the PC affects the environment positively, by avoiding the accumulation of these wastes. Saving the raw materials of polymer and fillers for other applications is another economical advantage of preparing the PC from the recycled PET and marble waste. Mechanical integrity of the PC was studied as blocks prepared under different experimental conditions. Chemical resistance and water absorption were also followed to evaluate the durability of the products obtained. In addition, the flammability of the SP and the PC prepared was also studied. Based on the data obtained, it could be concluded that the PC under consideration has good chemical resistance for 20% Na2CO3, 10% Noah, tap water, ground water and sea water. Besides the acceptable chemical resistance, the prepared PC shows low apparent porosity, low water absorption, and small open pores.

Key Words: polyethylene terephthalate wastes • marble wastes • polymer concrete • mechanical integrity • chemical durability

Journal of Elastomers and Plastics, Vol. 38, No. 1, 65-79 (2006)
DOI: 10.1177/0095244306055569
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