This document provides instructions for laying heavy duty cement concrete flooring in three layers: a sub-base, base course layer 35mm thick, and a wearing top/finishing layer 15mm thick. It details the materials, equipment, and procedures required, including batching ratios for the concrete mixes and application techniques. Recommendations are provided for placement, finishing, joints, curing and ensuring the proper level, slope and linearity of the finished floor.

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Heavy Duty Cement
Concrete Flooring

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Heavy Duty Cement Concrete
Flooring
• Definition & Use
• Material, Equipment
• Skill required
• Procedure
• Dos & Don’ts

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BASE COURSE / UNDER LAYER
35 mm Thick
WEARING TOP LAYER / FINISHING LAYER
15 mm Thick
SUB-BASE

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BASE COURSE
PREPARATION

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Panel Size = 1m x 1m

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Laid in Alternate Panels

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PVC Strips
3 x 40 mm

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1 cement
1.5 coarse sand
3.5 stone aggregates (10mm to 6mm size)
1 : 1.5 : 3.5
Volume Batching

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FINISHING LAYER
PREPARATION

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1 Hardener
4 Cement
1 : 4
Weight Batching
1 : 2
Volume Batching
1 Hardener –Cement Mix
2 Stone grit (6mm down)

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Application of neat cement slurry
@ 2.75Kg. of cement per m2.
Applied by brush

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• Mitred joints at the corners
• Straight line at intermediate
with panel joints

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Cement concrete shall be placed in position and
beaten with trowel and finished smooth.
Beating shall cease as soon as surface is found
covered with cream of mortar.

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The mixture so obtained shall then be
laid on the base course within 2 to 4
hours of latter's laying

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After the starting of initial setting, the
surface shall be finished smooth and true
with steel floats

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Curing
Ponding for a minimum period

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LEVEL
SLOPE
LINEARITY