Novel ferrosilicon nuclear power sacrifice material and preparation method thereof

Abstract

The invention discloses a novel ferrosilicon nuclear power sacrifice material and a preparation method thereof. The novel ferrosilicon nuclear power sacrifice material is primarily composed of 375-400parts of PII.52.5 level silicate cement, 130-145 parts of coal ash, 15-25 parts of silicon powder, 950-1100 parts of quartz sand, 900-1050 parts of hematite iron ores, 175-185 parts of water, 7-10 parts of a water reducer, 1-1.6 parts of polypropylene fibers and 0.5-1.6 parts of sulfonated graphene. The preparation process is simple. The nuclear power sacrifice material which is excellent in flowability, strength and corrosion resistance can be prepared by adopting a conventional forced single horizontal shaft concrete mixer. The prepared novel ferrosilicon nuclear power sacrifice material has the advantages of good working property, high strength, good corrosion resistance, is primarily applied to an existing reactor core trap of a third generation nuclear power plant and has wide engineering application value.

Description

technical field [0001] The invention relates to a nuclear power material, in particular to a novel ferrosilicon nuclear power sacrificial material and a preparation method of the material. Background technique [0002] At present, in order to alleviate severe nuclear power accidents, the method of installing a core catcher under the third-generation nuclear power plant reactor is usually adopted. The core catcher is mainly used to collect, cool and solidify the core melt. Sacrificial material is an important part of the core catcher in third-generation nuclear power plants, and the material plays a vital role in the cooling and solidification of the core melt. As a new type of two-dimensional nanomaterial, graphene has excellent optical, electrical, mechanical and thermal properties. Using graphene and its derivatives to improve the performance of materials is currently a research hotspot in the scientific and engineering circles. Incorporating graphene or its derivatives i...

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Problems solved by technology

The patent application with the application publication number CN 102176332A (application publication date is September 7, 2011) discloses an invention patent entitled "Nuclear Power Sacrificial Concrete Prepared from Medium-grade Iron Ore and Quartz Stone and Preparation Method", which The patent prepares sacrificial concrete for nuclear power by using medium-grade iron ore and quartz stone, but the work performance of the sacrificial concrete prepared by this method is poor, which is not conducive to the construction of large-volume sacrificial concrete; the compressive strength of the sacrificial concrete prepared by this method is low , resulting in poor durability and short service life of the sacrificial concrete; the sacrificial concrete prepared by this method has a high corrosion rate, which leads to a high probability of nuclear power plant leakage in the event of a severe nuclear power accident