·The Pareto fronts of a bi objective mixture optimization problem for high performance concrete and a tri objective mixture optimization problem for plastic concrete are successfully obtained by the MOO model The MOO model can serve as a design guide to facilitate decision making before the construction phase
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1School of Civil Engineering and Architecture East China Jiaotong University 330013 Nanchang China 2China Railway Second Bureau Group Co Ltd 610032 Chengdu China volume machine made sand concrete which is a mixture of machine made sand fly ash silica fume etc[5] and natural sand but no stone powder is added In view of
·To address the limitations of these experimental based methods computational optimization based on machine learning and metaheuristic algorithms has been used to optimize concrete mixture proportions [1] [2] This optimization method first develops objective functions and then applies metaheuristic optimization algorithms to optimize concrete mixtures
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·To address this challenge the demand for suitable concrete alternatives for island and reef airport construction has risen substantially [3] The integrated use of alkali activated cementitious materials AACMs with seawater and sea sand has gained interest due to its potential to produce high strength corrosion resistant ASSC [4] AACMs are created by
·They found that using the same amount of cement water and sand but with different types of sand namely natural medium sand natural fine sand and artificial sand mainly composed of stone chips the compressive strengths of the three mortar mixtures at 28 days were kg/cm2 kg/cm2 and kg/cm2 respectively
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