Abrasion resistance is one of the most important durability properties of concrete. Especially, highway, airport and industrial floor pavements should be resistant to abrasion. The investigation is directed to define the suitable aggregate of mortar to be used in a pulpline like a lining protective layer against an aggressive abrasive environment of water with coarse small particles of rocks. The paper examines the influence of aggregate type on abrasion resistance of mortar. Four different aggregate types (corundum, gabbro, quartz, basalt) were used to produce mortar. All samples have similar structure and therefore have constant grading, consistency of mortar, volume ratio between aggregate and cement, but different water–cement ratio. The results of test were showed that increasing wearing properties of aggregate impacts to increasing wearing properties of mortar. The mortar with corundum has the best properties to wear, so it is more suitable in mortar for abrasive environment.