Maritime work self-protection concrete and preparation method thereof

The invention relates to maritime work self-protection concrete and a preparation method thereof. The maritime work self-protection concrete comprises 200-400 kg/m of cement, 80-150 kg/m of fly ash, 40-80 kg/m of mineral powder, 20-40 kg/m of silica fume, 650-850 kg/m of sand, 900-1100 kg/m of gravel, 150-180 kg/m of water, 0.5-1.5 kg/m of a polycarboxylic acid water reducer, 20-40 kg/m of a compactness improving material, 10-20 kg/m of a super-hydrophobic harmful ion isolation material, and 5-10 kg/m of an anti-fouling biological corrosion agent. The compactness improving material is added into the concrete, so that the compactness of the cured concrete is effectively improved, the corrosion resistance of the concrete is improved, meanwhile, the super-hydrophobic harmful ion isolation material is added, harmful ions in a maritime work environment can be isolated from the concrete, and rated corrosion damage caused by the harmful ions is reduced; meanwhile, the added anti-fouling biological corrosion agent ca