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PLASTER, TYPES OF PLASTER - Coggle Diagram
PLASTER
DEFINITION
A number of cement- like substance that are applied to a surface in paste form and then harden into a solid material.
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TYPES OF PLASTER
Shanghai Plaster
Is a plaster that consist of cement and pebbles,
The composition of shanghai plaster consists of two parts of coloured cement, one part of sand and five parts of selected lime stone chippy
Mix composition ratio is 2:1:5 (cement,sand,pebbles)
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Gypsum/
Paris plaster
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Setting of unmodified plaster start:10 minutes after mixing and complete about 45 minutes,but not fully set for 72 hour
Lime plaster
The ratio is 1:3(lime putty, washed,well granded sand)
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