Mortar

Ask a question about 'Mortar' Start a new discussion about 'Mortar' Answer questions from other users Full Discussion Forum

• Mortar (weapon)
  Mortar (weapon)
  
  A mortar is a Muzzleloader indirect fire weapon that fires shell at low velocities, short ranges, and high-arcing Ballistics trajectories. It typically has a barrel length less than 15 times its caliber....
   fires shells at a much lower velocity and higher ballistic arc than other ordnance; their shells explode on impact with target.
• Mortar (masonry)
  Mortar (masonry)
  
  Mortar is a workable paste formed by mixture of cement, water and fine aggregate masonry to bind construction blocks together and fill the gaps between them....
  , material used in masonry to fill the gaps between blocks and bind them together.
• Mortar (firestop)
  Mortar (firestop)
  
  Firestop mortars are most typically used to firestop large openings in walls and floors required to have a fire-resistance rating. They are passive fire protection items....
  , hydraulic cementitious material used to firestop
  Firestop
  
  A firestop is a passive fire protection system of various components used to seal Penetration and Joint in Fire-resistance rating wall and/or floor assemblies, based on fire testing and certification listings....
   through-penetrations in wall and floor assemblies required to have a fire-resistance rating
  Fire-resistance rating
  
  A fire-resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire test. This can be quantified simply as a measure of time, or it may entail a host of other criteria, involving other evidence of functionality or fitness for purpose....
  .
• Mortar and pestle
  Mortar and pestle
  
  A mortar and pestle is a tool used to crush, grind, and mix substances. The pestle is a heavy stick whose end is used for pounding and grinding, and the mortar is a bowl....
  , a vessel and implement used to crush or grind materials.
• Mortarboard, a flattened type of headwear normally worn as part of academic dress
  Academic dress
  
  Academic dress or academical dress is a traditional form of clothing for academia settings, primarily Tertiary education and sometimes Secondary schools education, worn mainly by those that have been admitted to a university degree or hold a status that entitles them to assume them ....
  .

See also

• Chemical mortar battalion
  Chemical mortar battalion
  
  The United States chemical mortar battalions were army units attached to U.S. Infantry division s, and it was their responsibility to service the M2 4.2 Inch Mortar during World War II....