| abstract |
The salt sea durability is improved so that the durability life of the marine concrete structure constructed in the marine environment is significantly increased. The present invention relates to a portland cement which is hardened when mixed with water and contains calcium oxide, silicon dioxide, and aluminum oxide; It has latent hydraulic property, reduces calorific value during hydration, generates Friedel's salt that fixes chloride ions during hardening, and is mixed to increase long-term compressive strength of hardened concrete, and contains calcium oxide, silicon dioxide, aluminum oxide, and magnesium oxide. Blast furnace slag; Fly ash containing silicon dioxide, aluminum oxide, and iron oxide, which is mixed to improve workability and relieve heat of hardening and improve long-term compressive strength and watertightness through pozzolanic reaction; A reinforcing aggregate that is mixed to increase the strength of the hardened concrete and includes fine aggregates and coarse aggregates; And the Portland cement, the blast furnace slag, the fly ash, and the reinforcing aggregate by dispersing the particles of the mixture to provide fluidity, and to prevent corrosion by chloride ions penetrating the concrete, including an admixture containing an admixture. Provides marine concrete composition. |