Abstract
This study evaluated the setting shrinkage characteristics of Methyl Methacrylate (MMA)-modified vinyl ester polymer concrete with different curing ages, MMA contents and curing temperatures. Results have shown that most of the setting shrinkage developed within 24 h after curing initiation. It was also found that an increase in MMA content led to an almost linear decrease in setting shrinkage, indicating that adding an MMA monomer was an effective measure to reduce the setting shrinkage of MMA-modified vinyl ester polymer concrete. A higher curing temperature tended to result in greater setting shrinkage, indicating that low-temperature curing is beneficial for reducing the setting shrinkage. The magnitude of setting shrinkage observed in vinyl ester polymer concrete was much greater than the drying shrinkage typically observed in ordinary Portland cement concrete but was smaller than the setting shrinkage of polymer concrete incorporating other types of binder.
Highlights
Polymer concrete is a particular type of concrete composed of inorganic aggregate and filler and organic polymeric binder
The Methyl Methacrylate (MMA)-modified vinyl ester polymer concrete investigated in this study showed the compressive strength of 64 to 70 MPa and the setting shrinkage of 34.53 to 39.54×10−4 at curing age of 24 h
Results revealed that the setting shrinkage developments with respect to the ultimate setting shrinkage monitored at 24 h were 92.65 to 98.26% at 6 h, indicating that most of the setting shrinkage in Methyl Methacrylate (MMA)-modified vinyl ester polymer concrete occurred within the first 6 h after curing initiation
Summary
Polymer concrete is a particular type of concrete composed of inorganic aggregate and filler and organic polymeric binder. Vinyl ester resin was used for polymer concrete production has it good workability as in unsaturated polyester resin and excellent physical and chemical properties as in epoxy resin. It has superior heat performance and corrosion resistance and is widely used for new industrial applications such as coatings, printed circuit boards, metal foil laminates, building materials, automotive parts and fiber reinforced composites (Patel et al, 1990). It is anticipated that such advantages of vinyl ester resin and MMA monomer can lower binder’s viscosity and, in turn, improve the physical and mechanical properties polymer concrete
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
