| 摘要 |
PROBLEM TO BE SOLVED: To provide a placing management method capable of effectively reduce labor and trouble of managing a slump flow value to be kept in a suitable value, in the placing site at which fiber reinforced concrete is pressure-fed with a pump and placed.SOLUTION: A placing management method for fiber reinforced concrete includes: calculating, as a regression line 13, a correlation relationship between an on-site arrival time slump flow value of concrete before being injected with reinforced fiber and a slump loss as a reduced amount of the slump flow amount after being mixed with reinforced fiber; on the basis of the correlation relationship, setting an on-site arrival time suitable upper limit value 11a and an on-site arrival time suitable lower limit value 11b, between an on-site arrival time management upper limit value 10a and an on-site arrival time management lower limit value 10b; and, for the concrete having the on-site arrival time slump flow value between the on-site arrival time suitable upper limit value 11a and the on-site arrival time suitable lower limit value 11b, pressure-feeding with a pump and placing the concrete without performing a slump flow test, after being injected with the reinforced fiber and being mixed while being kneaded. |
