Ultra-high performance concrete with high strength, workability, loading durability and low curing maintenance for applications in airport pavement

Ultra-high performance concrete with high strength, workability, loading durability and low curing maintenance for applications in airport pavement

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With the rapid development of the aviation SOAP 3 IN 1 UNSCENTED industry, airport pavement is subjected to ever-increasing loads, posing urgent and higher demands on the mechanical performance and durability of pavement materials.This study develops a novel Ultra-High Performance Concrete (UHPC) with outstanding mechanical properties, good workability, low curing maintenance, and excellent performance in sustaining long-term load to specially designed for its potential application in airport pavement.The as-developed UHPC contains a mixed portion of fine and coarse aggregate, assuring its workability and avoiding the early-age shrinkage crack for the potential on-site construction.With a 7-day compressive strength of 140 MPa, compressive strength of 155.1 MPa, flexural strength of 25.

4 MPa at 28 days, and a wear loss per unit area of 0.043 kg/m2, the mechanical properties of UHPC well outperform those of conventional C30 airport pavement concrete.Finite element simulation analysis reveals that a 10 cm thick UHPC surface layer demonstrates durability and safety under aircraft taxiing and landing impact loads, with a maximum tensile stress of 4.12 MPa well below its tensile strength limit of 8.75 MPa.

Furthermore, it Fridge Water Filter is predicted that a 10 cm thick UHPC overlay could support a load cycle lifespan 1014 times longer than that of conventional C30 concrete of 30 cm thickness, indicating its potential to significantly extend the service life of airport pavement.This research provides a theoretical basis for the applications of UHPC in airport pavement and presents innovative perspectives on into material and structural design of airport pavement materials for the future.