The UHPFRC combination used in this experiment is shown in Table 3.
1.
The cement used is PII52.
5 Portland cement; The sand is medium sand with a fineness modulus of 2.
5; Silica fume is produced by Eken Company, with a specific surface area of 18200m2/kg and a silica content greater than 95%; The water reducing agent is a highly efficient polycarboxylate water reducing agent; Steel fiber is a copper plated steel fiber produced by a metal products company in Zhejiang, with a volume fraction of 1%, a length of 13mm, a diameter of 0.
2mm, a tensile strength of 2400MPa, and an elastic modulus of 200Gpa.
.