What is the maximum size of a single terrazzo panel?

The area should generally not exceed 2 sqm, and no single dimension should exceed 2 m to minimize shrinkage cracks.

What materials are used for dividing strips?

Glass, brass, or aluminum strips are strictly recommended to form panels.

How long should the terrazzo topping be cured before grinding?

It should be cured for a minimum of 5 to 7 days before the first (coarse) grinding is performed.

What determines the thickness of the terrazzo topping?

The thickness of the topping is determined by the maximum size of the marble chips used, varying generally from 6 mm to 12 mm.

IS 2571

: 2002

Code of Practice for Laying In-Situ Terrazzo Floor Finish

CurrentFrequently UsedCode of PracticeArchitectural · Flooring and Paving

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This standard provides comprehensive guidelines for laying in-situ terrazzo (mosaic) floor finishes. It covers material specifications, mix proportions, sub-base preparation, panel layout using dividing strips, and the multi-stage process of curing, grinding, and polishing.

Provides guidelines for the laying and finishing of in-situ terrazzo floors, including material selection and execution.

Quick Reference Values

maximum panel area2 sqm

maximum panel dimension2 m

minimum topping thickness size 0 chips6 mm

minimum topping thickness size 1 and 2 chips9 mm

minimum topping thickness size 3 chips12 mm

curing time before first grinding5 to 7 days

Practical Notes

Provide dividing strips (glass, aluminum, or brass) to divide the floor into panels not exceeding 2 sqm to prevent shrinkage cracking.

Ensure the under-layer is adequately compacted and roughened to provide a mechanical key for the terrazzo topping.

Perform grinding in three distinct stages using progressively finer carborundum stones (coarse, medium, and fine), carefully filling any pinholes with matching cement grout between stages.