what is crushed limestone used for
Crushed Limestone Uses. Youâd be amazed at the number of ways that crushed limestone can be used for either functional or decorative purposes, including: 1  Making Concrete â Concrete is a combination of cement, water, sand and crushed aggregate. Limestone that has been crushed down to size is ideal as itâs affordable, reliable and offers a smooth and easy ride. 2  Pipe Bedding â Crushed lime aggregate is frequently used for bedding underground pipes. 3  The material is a top pick because itâs able to level and support the pipe.