Experimental Studies on GFRP Reinforced Concrete Mixed with Sea Sand and Sea Water

Abstract

The development of marine economy brings with it a need for marine buildings and port structures that require concrete. If these buildings were built with sea sand concrete mixed with sea water instead of traditional concrete and replaced FRP reinforced steel, raw materials can be procured locally, saving time and cost. Based on the above considerations, 8 GFRP reinforced SS-concrete (concrete with sea sand and sea water) beams were prepared to understand their workability and strength as their reinforcement ratio increases. Results show that an increase in reinforcement percentage, leads to an increase in strength and decrease in bonding property. Based on these experimental results it is assumed that only the horizontal sections are feasible. Although GFRP reinforced SS-concrete failure is primarily due to brittleness, obvious signs such as fully developed cracks and large deflections can be seen prior to the failure. So in the design, the ductility of the GFRP reinforced concrete with sea sand and sea water can be assured through controlled load and reinforcement rates.

Research on the Application of Marine Aggregate Concrete in Floating City

“…(3) Slumps Slump is a special measurement of concrete and workability method and indicators to measure its degree, to judge whether the construction can be carried out normally. Although the slump of seawater marine aggregate concrete is slightly smaller than that of freshwater concrete, overall, Xing Li [8] and Chen [9] show that the slump of seawater sand concrete increases and decreases respectively with the increase of chlorine salt and shell content. When Younis et al [10] study found that the water glue ratio was the same, Compared with freshwater concrete, the slump of seawater concrete is reduced by 20%.…”