Why are there stones on railway tracks?
What is the reason for concrete stones in between the railway track?
What are the diamond shaped structures in the middle of railway tracks? What's the difference between concrete and cement? What is the difference between cement and concrete? Why do we use steel with concrete? What are the uses of stones in construction material? Why does prestess concrete was used in walnut lane memorial bridge? What are the advantage of in-situ concrete? What is the reason behind the curing of concrete? Why are concrete bricks not burnt but watered? Why do railway traffic lights have green at the top and red at the bottom but road signals are the other way? Why are Metro train flyovers constructed using cement instead of using only steel, which is enough to run Metro trains and would have saved substantial money and time? What is the reason for embedding slightly bigger stones in Kolkata's roads? Why does railway traction wire consists of two wires? What is green concrete & where it is used? What causes rust to form on concrete? How are cement and concrete made? Why is the factor of safety of steel less than that of concrete? What are "paving stones"? Why the railway station boards are yellow? Where I am from, old brick houses all have limestone foundations. Why is this? Is there a reason the foundation isn't made of bricks as well? What's the difference between a rock and a stone? Why are bridges in India mostly made of concrete rather than steel? What are some advantages of pre-stressed concrete? What is the basic principle of pre-stressed concrete? What is the difference between opc cement and portland slag cement? Why are the partial factor of safety of steel is less than concrete? What's the name of the stone that covers all the city of Edinburgh and why is it used so largely? Is limestone a stone? Why are there two factors of safety of 1.5 for concrete in reinforced concrete design? What is the cause of moving stones of Death Valley?