The Design of Self-Compacting Concrete with High Fly Ash Content in the Construction of Rural Transportation Infrastructure in Vietnam

This article presents the results of an experimental study on the design of self-compacting concrete (SCC) with high fly ash content, applied in the construction of rural transportation infrastructure in Vietnam. The study applies the SCC mix design method following the guidelines provided by Japan, with fly ash replacing cement at the ratio of 40% to 80%. The evaluation of the SCC mixtures is based on various workability criteria, including slump flow (SF), T500 time, J-ring passing ability, L-box passing ability, V-funnel flow time, segregation resistance (SR), and concrete’s compressive strength at 28 days. Through the experimental research, the proposed SCC mix design process is presented, aiming to simplify and expedite the implementation process while meeting the objectives of rural transportation construction.