Abstract
Non-shrinkage mortar is being used effectively to fix shoes of bridges and base plates of machines. With the recent sharp rise in traffic volume, occasions on which non-shrinkage mortars are subjected to repeated loading are increasing more and more.
In this study, fatigue tests of six kinds of non-shrinkage mortar and plain mortar in compression were performed. Since the values of fatigue life of mortar and concrete are known to scatter widely, the fatigue test results were evaluated statistically.
The results suggest that the fatigue life of non-shrinkage mortar at each stress level follows a Weibull distribution or logarithmic normal distribution. No fatigue limit seems to exist for non-shrinkage mortar. However, the fatigue strengths of plain and non-shrinkage mortar, except B mortar, at 2 millions cycles can be estimated at about 60 percent of ultimate static strengths.
