What mortar mix is used for bedding brick flooring?

A 1:4 cement-sand mortar is generally recommended for bedding and a 1:3 mix for jointing (Refer Clause 3.2).

What is the recommended thickness for the mortar bed?

The code specifies an average thickness of 20 mm for the bedding mortar (Refer Clause 5.2).

Should bricks be wet before laying?

Yes, bricks should be soaked in water until air bubbles cease to remove dust and prevent rapid absorption of water from the mortar (Refer Clause 5.1).

How long should brick flooring be cured?

The floor should be kept moist by sprinkling water for a minimum of 7 days to allow the mortar to cure properly (Refer Clause 7.1).

IS 5766

: 1970

Code of practice for laying burnt clay brick flooring

CurrentSpecializedCode of PracticeArchitectural · Flooring, Wall Finishing and Roofing

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This code of practice details the methodology for laying burnt clay brick flooring. It specifies requirements for materials, preparation of the sub-base, the laying process including bedding and patterns, jointing, finishing, and curing to ensure a durable and aesthetically pleasing surface.

Code of practice for laying burnt clay brick flooring

Quick Reference Values

Nominal thickness of sand cushioning layer12 mm

Average thickness of bedding mortar20 mm

Recommended joint thickness6 to 10 mm

Minimum curing period for mortar7 days

Recommended slope for drainage1 in 40 to 1 in 60

Practical Notes

Ensure bricks are soaked in water before laying to prevent them from drawing moisture from the mortar, which can cause poor bonding and cracks.

The sub-base must be thoroughly compacted and levelled to avoid uneven settlement of the brick flooring over time.

A slight slope (gradient) must be provided, especially in outdoor areas, for effective water drainage away from walls.