Study on Influences of Superplasticizer with Waste Plexiglas (WPS) on Cement Paste and Mortar

Abstract:

In this paper, superplasticizer was synthesized from waste plexiglas and sodium allysulfonate (WPS). Poly(methyl methacrylate-co-ethyl acrylate) grafling sodium allysulfonate (PMMA-g-AS) was prepared through reactive extrusion in self-single screw extruder and hydrolysis reaction. The structures of the WPS were characterized by FT-IR spectrometer. The results show that structures of the WPS are clear. Properties of WPS and traditional naphthalene sulfonated formaldehyde condensates (FDN) were investigated, when water-cement ratio (W/C = 0.29) and the dosage of superplasticizer is 0.6 wt.% of cement, water reducing rate of mortar is 22.1%, which is 7.3% higher than that of FDN. BWP of the mortar of WPS is 1.4%. In addition, the compressive strengths of mortar of 3 d, 7 d and 28 d are higher than that of FDN, respectively, indicating that over-all performance of WPS reaches the standard of superplasticizer and its ratio of performance to cost is higher than FDN.

• Periodical: Advanced Materials Research (Volumes 328-330)
• Pages: 579-582
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.328-330.579
• Online since: September 2011
• Authors: Gang Zheng, Ru Min Wang, Gao Yang Zhao, Xiao Jiao Yu
• Keywords: Cement Paste, Mortar, Reactive Extrusion, Superplasticizer, Waste Plexiglas

References

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