Silicon-aluminum base marine concrete material and preparing method thereof

Disclosed are a silicon-aluminum base marine concrete material and a preparing method thereof. The preparing method comprises the steps of weighing mineral admixtures, portland cement clinker and diagenetic agent and conducting mixing and grinding on the mineral admixtures, portland cement clinker and diagenetic agent, wherein weight ratio of the mineral admixtures to the portland cement clinker to the diagenetic agent is (60-95):(0:30):(1-10), and preparing the mixture into a silicon-aluminum base binding material for use; weighing the prepared binding material, aggregate and admixture for use, wherein the weight ratio of the binding material to the aggregate to the admixture is 1:(4-7):(0.01-0.10); mixing the obtained mixture with water and stirring evenly the mixture; casting silicon-aluminum base marine concrete slurry prepared after the mixture is stirred into a mould to be subjected to maintenance, and finally obtaining the silicon-aluminum base marine concrete material. The prepared silicon-aluminum base marine concrete material has high durability and sea water corrosion resistance, and has a long service life and a low cost.