Design a high performance concrete mix for a large span bridge deck in a marine environment, requiring a 28 day compressive strength of 80 MPa and enhanced durability against chloride ion penetration The available materials include Portland cement (Type I and Type V) Silica fume, fly ash, and ground granulated blast furnace slag (GGBFS) Aggregates (specific gravity 2 7, absorption 0 8 ) Water (potable) High range water reducing admixture (HRWR) Air entraining agent (AEA) Requirements Develop a concrete mix design that meets the specified strength and durability Specify the optimal replacement percentages of silica fume, fly ash, and GGBFS to achieve the target performance Calculate the water cementitious ratio (w c), required quantities of each component per cubic meter, and total cementitious content Justify your design choices based on durability considerations, economic factors, and workability Additionally, explain the testing procedures for chloride ion penetration (ASTM C1202), and predict how the proposed mix will perform in this test compared to conventional concrete (w c 0 45, 40 MPa strength)

Question: Design a high-performance concrete mix for a large-span bridge deck in a marine environment, requiring a 28-day compressive strength of 80 MPa and enhanced durability

Design a high-performance concrete mix for a large-span bridge deck in a marine environment, requiring a 28-day compressive strength of 80 MPa and enhanced durability against chloride ion penetration. The available materials include:

Portland cement (Type I and Type V)
Silica fume, fly ash, and ground granulated blast furnace slag (GGBFS)
Aggregates (specific gravity 2.7, absorption 0.8%)
Water (potable)
High-range water-reducing admixture (HRWR)
Air-entraining agent (AEA)

Requirements:

Develop a concrete mix design that meets the specified strength and durability.
Specify the optimal replacement percentages of silica fume, fly ash, and GGBFS to achieve the target performance.
Calculate the water-cementitious ratio (w/c), required quantities of each component per cubic meter, and total cementitious content.
Justify your design choices based on durability considerations, economic factors, and workability.

Additionally, explain the testing procedures for chloride ion penetration (ASTM C1202), and predict how the proposed mix will perform in this test compared to conventional concrete (w/c = 0.45, 40 MPa strength).\"**

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