Cement boards are sheets made of cement and fibers containing cellulose 🤓 Boards are typically 4 ft by 8 ft in dimension and vary between ¼ and ½ inch in thickness 🙌 The primary purpose of cement boards is to serve as backing for tile and is superior to paper-covered gypsum at this task because of its resistance to water – as tile is typically used in areas prone to water exposure, it is important to have a backing that will not develop mold and mildew or disintegrate after prolonged exposure to moisture. Cement boards are heavy, so two people will be required to move them. The only thing that can slice a board is a carbide-tipped cutting blade. You should be able to cut a board with a carbide-tipped blade. 
In many ways, the strength of FCB depends on its composite fibers. The strongest FCB is made from synthetic fibres like carbon or Kevlar, which are both very cost-effective and highly resistant to moisture. Cellulose fibres can contain high levels The addition of organic sugars or other substances can slow down cement set time and lower the board’s resistance to water. However, kraft pulps are able to help combat these issues. They release very little sugar and have very limited efficacy. You can experience increased saturated mass and poor wet/dry dimensional stability. They also can increase saturated strength which may lead to freeze/thaw injury. These can be managed with appropriate board formulation. Although recycled cellulose fibres can be both economical and environmentally-friendly, they are also shorter than virgin fibers which makes them less strong. Matthew G., Siliguri (India) on May 15, 2021 modified this article 
You can find additional content here jameshardie.co.uk This is why fiber cement can be used exteriorally as an option to PVC, vinyl and wood cladding. Fibre cement also has low maintenance and is extremely durable. Because it’s water-resistant, fibre cement cladding doesn’t rot or warp and crack. The cladding also resists termites, woodpeckers, and other pests. Fiber cement cladding has a high fire resistance and is not combustible. Fibre cement cladding can be installed by one person and is very easy to handle. 
Cement board is also known as concrete board. It’s used as an underlayment. It’s sold in thin sheets that resemble Sheetrock. Typical sizes are 4 ft by 8 ft by ¼ inch to ½ inch thick. Cement board sheets consist of plant fibers that contain cellulose and cement. Cement board sheets are used as backer material for stone, tile and brick. It’s much better than drywall because it’s very strong, stiff and resistant to water. Since tile is generally used in wet areas it’s important to use a backer material that isn’t prone to mold and mildew growth. Concrete board is also very durable and won’t disintegrate after prolonged exposure to moisture. It’s cut to size and screwed to the framing just like drywall. Seams can also be taped or waterproofed using a sealant in wet areas. You can use it on walls, floors and ceilings. Last updated 4 weeks ago, by Zev Braswell (Yerevan, Armenia).