Compound-doped mineral admixture for reinforced concrete structure of oceanographic engineering

The invention relates to the field of concrete additives for oceanographic engineering, and aims at providing a compound-doped mineral admixture for a reinforced concrete structure of the oceanographic engineering. The compound-doped mineral admixture comprises the following components in percentage by mass: 20 to 35% of coal ash, 5 to 10% of zeolite, 20 to 40% of slag, 5 to 15% of silica fume, 5 to 15% of corrosion inhibitor, 2 to 5% of dispersing agent, 0 to 10% of shrinkage reducing agent, and 0 to 16% of antimitotic agent. According to the compound-doped mineral admixture, multi-component design is adopted, the functions of all the components are combined and coordinated, and thus the crack resistance and rust resistance of the structure are optimized, and the wear resistance of the oceanographic engineering can be improved; and a plurality of functional components are compounded into the admixture, so that the functional components can be uniformly dispersed in the concrete, and the effects of stably resisting crack and resisting rust can be realized. The compound-doped mineral admixture can reduce the concrete agitating conditions and reduce the usage cost of an enterprise, and is convenient for massive popularization and application.