建筑知识

The cost and preferences for building  badminton courts  will vary. It is based on many factors like quality, purpose, material availability, vendors etc. But lets consider only factors that affect the way the game is actually being played. The difference in the construction of badminton courts varies primarily based on the material used for the flooring of the court. As such, there are three  types of courts  – Wooden, synthetic and cement. In this piece, we’ll look at why some surfaces are preferred over the rest for mainstream use. Cement and Polished stone aren’t built for humans Concrete courts and polished stone courts have poor bounce and shock absorption. They also become slippery, if there is dust on them. People with weak knees and ankles should avoid playing for long periods of time on these courts, as the impact can hurt the knees, ankles, shinbone and feet. This leaves us with wooden and synthetic flooring materials as the only obvious choices. The problems with wooden cou

Metal roofs offer several advantages, including a longer life cycle than roofing materials such as asphalt and cedar.  Metal roofs  can withstand elements such as hail, heavy rain and snow as well as high winds. Metal roofs have also been praised for protecting homes during forest and bush fires. In fact, in many areas, insurance companies offer homeowners up to a 30% reduction in homeowner's insurance when installing a metal roof. Three different styles are available: standing seam roofs, panel roofs and similar looking materials including tile, cedar or slate. Standing seam metal roofs have large ribs and require crimping or welding to join them. Panel roof panels are similar to standing seam roof panels, however, these need to be screwed in. With the exception of screw-in panels, metal roofing installations require special training. Why should homeowners consider metal roofing? Metal roofs offer several advantages, including a longer life cycle than roofing materials such as asp

 Cast iron is one of the most extensively used alloys of ferrous. It is made from pig iron by the  process of casting  and hence the name. Pig iron is placed in the furnace along with other alloying elements and melted until the molten mixture is obtained. The molten mixture is then poured in casts or molds of required dimension and left to solidify. The resultant solid obtained is the cast iron which finds its use in a myriad of industries. Advantages: 1. Good castability (low Tm, good fluidity) 2. Good machinability (graphite cast irons) 3. Antivibration properties 4. Low-stress concentration 5. Sensibility   Types of cast iron The properties of  iron casting  can vary according to the alloying elements added. The cast iron’s properties can be manipulated by varying the alloying constituents. The main alloying elements added to the cast iron are carbon and silicon. Based on the amount of the alloying elements added, the cast iron can be classified into grey iron or white iron. They a