Chapter 5
5.1 Introduction
This research aimed to produce a perforated plate as a wave breaker made using jute fabric reinforced polymer concrete. The materials involved jute fabric, fly ash, granite quarry dust aggregate, and unsaturated polyester resin. This wave breaker was developed to control coastal erosion. A few tests, such as compression and flexural tests were performed to recognize the mechanical and durability properties of polymer concrete. Through this end, the strength of polymer concrete reinforced with jute fabric was determined. Moreover, the wave breaker plate’s optimum thickness also established and different percentage of holes gives different strength reduction towards the plate. Flexural strength of samples cured in 28 cycles of wetting and drying condition immersed with 3.5% sodium chloride solution in 12 hours and 12 hours in room temperature was known.
In this chapter, the conclusion was made after the result and discussion have been discussed. This chapter also will conclude whether the objectives of this project are achieved according to the results. Besides, the recommendation was given to provide opinions and ideas on the application of perforated plate polymer concrete as a wave breaker and further research idea that could be done for this research project in the future. The application and further research concept could significantly improve this polymer concrete perforated plate.
5.2 Conclusion
In this research project, several main properties of the JRPC plate as a wave breaker were determined throughout the experimental result, which are jute fabric as reinforcement gives greater strength, the PC strength is affected by the percentage of holes PC also has high resistant towards chloride attack. The conclusion of this research project is summarized as follows, based on the experimental findings:
- The PC plate’s flexural strength was slightly affected after undergoing 28 cycles of wetting and drying conditions immersed with a 3.5% sodium chloride solution in 12 hours and 12 hours at room temperature. According to this result, the PC plate good at resisting chloride ion attack.
- According to the result on PC reinforced with jute fabric, it proved that the flexural strength was higher compared to non-reinforced PC. Jute fabric is an ideal material where it is more economically and environmentally friendly.
- Based on the result of the flexural strength of the PC plate, strength was affected by the percentage holes of the plate. The reduction of strength depending on the percentage of holes of the plate.
- The compression strength from cube samples with a duration of 14 days using mixed design of 1 part of fly ash: 1 part of unsaturated polyester resin: 2 parts of granite quarry dust aggregate give higher strength, and it categorized as high-performance concrete.
5.3 Recommendation
Several recommendations were made to improve and for further research towards this wave breaker plate.
- The PC sample should be cast at the same time, day, and weather so that the result is more accurate when being compared.
- The wetting and drying cycles can be extended to more than 28 days to see the effect of flexural strength on the PC when immersed in a 3.5% sodium chloride solution with a longer duration.
- For further extension for this project, using holes with different orientations gives a result within the expectation. Thus, research on this might give a different result on flexural strength.