Surkhi,Powdered broken brick (burnt brick)
Surkhi,Powdered broken brick (burnt brick)

Surkhi,Powdered broken brick (burnt brick)

SURKHI Surkhi,Powdered broken brick (burnt brick) locally called surkhi is used as fine aggregate in lime mortar. Surkhi,Powdered broken brick shall be prepared by finely grinding well burnt good quality bricks free from under burnt particles of soluble salts, pyrites and adherent coatings of soil or silt. The maximum quantity of clay, fine silt and fine dust present shall not exceed five per cent by weight. Requirements for Broken Brick (surkhi) fine Aggregate for use in Lime Mortar FUNCTIONS OF SURKHI IN MORTAR Surkhi,Powdered broken brick is used as an adulterant but it imparts strength and hydraulic properties to the mortar. To develop more strength is should be ground very finely with lime in the mortar grinding mill. Surkhi mortar is a mixture of lime,surkhi and water. It is lime morta in which sand has been substituted by surkhi for economy and strength. Note:- surkhi is finely powdered burnt clay…

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