30 specimens of N-type block masonries with different grouted rates were investigated for the performance of shear resistance.According to the shear-test phenomena and failure shape of specimens,the ratios of the shear-resistance crack load and the ultimate load of grouted N-type block masonry which changed with the grouted rates,were 77%~82% of half-grouted and 54%~59% of full-grouted.It has been found that the N-type block masonry shows better ductility with the increase of the grouted areas.The average v...