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General
  • 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.
  • Mortar is a mixture of sand, a binder such as cement or lime, and water and is applied as a paste which then sets hard.
  • Portland cement mortar (often known simply as cement mortar) is created by mixing Portland cement with sand and water.
  • Lime mortar is created by mixing sand, slaked lime and water.

Process

  • Methods for analyzing mortars can be divided into two broad categories: wet chemical and instrumental.
  • The mortar is prepared from sintered sulfurous iron ore slag as main raw material instead of sand, and added with appropriate amount of cement, dried flyash and calcined lime powder.
  • All necessary facilities are available for the preparation of mortar and concrete to prepare specimens for characterization and mechanical test analysis Samples are prepared for testing according to ASTM and CSA standards.
  • Solid masonry consists of bricks or blocks jointed together by mortar.

Technology

  • A novel chip fabrication technique called “brick and mortar”, in which chips are made from small, pre-fabricated ASIC bricks and bonded in a designer-specified arrangement to an interbrick communication backbone chip.
  • The ultrasonic method presented is able to extract automatically certain parameters of US waves recorded continuously during the setting and hardening of mortar materials.
  • X-ray microtomography technique has been used to obtain an image of an ASTM C109 mortar sample that had been exposed to a sodiumsulfate solution.

Application

  • Mortar consisting primarily of lime and sand has been used as an integral part of masonry structures for thousands of years.
  • The use of natural pozzolans as additives in lime mortars is a possibility that permits the execution of mortars compatible with old renders and masonry.
  • In cold weather, if the temperature is below 5ºC, mortars will take significantly longer to dry, especially when used on or over non-absorbent substrates.

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