Study on Physical and Mechanical Properties of High-Water Material Made by Seawater

In maritime engineering, marine-derived construction materials are seen as an efficient and cost-effective alternative. HWM is a novel inorganic cementitious material characterized by its high water content, rapid setting, early strengthening. this study, first, was proposed to be produced from seawater used in environment. Two groups of samples with varied w/c ratios were prepared fresh seawater, their behavior examined assess the viability seawater. The microstructures chemical compositions studied using SEM XRD. Results indicated that ratio increased 3:1 6:1, density, uniaxial compressive strength 72.1% 77.5%; 1.25 1.12 g/cm3, 1.47 MPa 0.39 MPa, respectively, which 2–10% lower, 0.8–2.2% higher, 13–45% stronger than water. composition mixed predominantly composed ettringite, C-S-H gel, aluminum (Al(OH)3) glue, M-S-H Mg(OH)2. SO42− Mg2+ participate hydration hardening HWM, resulting increase synthesis ettringite makes skeletal structure denser, hence increasing strength. derived retains excellent physical mechanical properties. This work reveals HWM-seawater interaction mechanism, elucidates promising application prospect paves way investigate field performance.