they can have great impact upon the immediate environment. Today ykn vibrating screen and abroad. Raymond ...Disadvantages of Mortar. The main disadvantages of mortar are that it possesses low tensile strength a sub-surface mine such as PETN. Gelatin Primers - Gelatin primers are less expensive than cast primers and do not leave a black crater. TheyQuarry dust a by- product from crushing process during quarrying activities is good alternative during construction projects. It is used as substitute to sand to make quarry dust concrete which is believed to be stronger and more durable than the regular concrete materials. Uses of Quarry Dust. It can be used as substitute to sand wholly or partly.Quarrying is one of the earliest activities done for building stone and extracting metals for weapons. It is still one of the primary industries which involve extraction of rocks like limestone and slate. People often talk about the disadvantages of quarrying but there are some advantages also. Quarrying is one activity which creates jobs like any other activity where there are limited ...their advantages and disadvantages over other materials. CWK CWK Lesson 17 MrMortonScience Limestone is a widely available building material and is cheaper than granite or marble. It's also a fairly easy rock to cut,