1 Nirjharâs interest is to know different technology and process engineering. 2  Raw iron is found in earthâs crust, as an ore. 3  Iron ore mostly found as Fe 2 O 3 (the form of iron oxide found as the mineral hematite). 4  At present, blast furnace is most commonly used furnace to produce iron.
The weight of a railroad tie depends on their size and specifications. They can range anywhere from 100 to 300 pounds.
If you have a slope that is need of a retaining wall and have access to railroad ties, this is the perfect project for you! We'll be showing you how we made a railroad tie retaining wall in between two of our shops. We had 18 inches of a hill that needed to be retained.