and M5, respectively. Concrete cylinders were tested in
accordance with ASTM C39.11 A ready-mixed cement
grout with a specified strength of 35 MPa (5100 psi) was
used to fill the sleeves after tensioning the threaded rods.
Three 50 mm (2 in.) cubes were cast during grouting and
then tested after hardening. Results of average cube
compressive strength at the date of the testing were 50