IS : 2115 - 1980 : The Material. - Printable Version

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IS : 2115 - 1980 : The Material. - mihika mathur - 08-16-2014

IS : 2115 - 1980 : The Material.

Soil for Mud PHUSKA - The soil for mud PHUSKA shall be free from gravel and coarse sand (of particle size greater than 2 mm ), vegetable matter and fine KANKAR particles. The coarse material shall not exceed 25 percent by mass. The soil shall also be free from harmful and efflorescent salts.

NOTE 1 -Generally soil suitable for brick making is suitable for mud PHUSKA also.
NOTE 2 -Soils collected from localities afflicted by white ants may not be suitable.
NOTE 3 - The above plasticity index will indicate a reasonable cohesive soil.

Mud plaster : The dry soil shall be reduced to fine powder and mixed with water in a pit, adding wheat straw 6 percent by mass and cowdung 12 percent by mass. The mixture shall be allowed to rot for a period of not less than 7 days. During this period, it shall be pugged manually using spades if necessary to get a homogeneous mass free from lumps and clods.

Cut-Back Bitumen - Cut-back bitumen shall be prepared by adding 20 parts of kerosene oil and 1 part of paraffin wax to 80 parts of 80/100 bitumen melted on gentle fire. The mixture shall be worked to a homogeneous mass.

For more detail on mud refer following thread of the Forum   
http://www.frontdesk.co.in/forum/showthread.php?tid=2319

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