METHOD STATEMENT PCC LAYING · FOUNDATION / FLOOR / ROAD

published on
Arshavtar.in by Er. Kuljit Singh
REVIEWED BY
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PREPARED BY
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1. PCC (PLAIN CEMENT CONCRETE) LAYING
1.1 Scope Of Work

Laying of Plain Cement Concrete in foundation (below footings), under floor slabs, and for road sub-base / pavement. Includes mixing, transporting, placing, compacting & curing.

1.2 Quality (approx quantity)

As per project BOQ – typically 50 m³ to 500 m³ (indicative).

1.3 Reference Drawing

Foundation layout, floor slab details, road cross sections – as applicable.

1.4 Sub Contractor

Approved agency / department through PRW.

1.5 Average Progress

~15–25 m³ per day depending on mixing method & placement.

🧪 CONCRETE GRADES FOR PCC (INCL. 1:4:8 M7.5)
Nominal mix proportions & weights per m³ (SSD)
GradeMix (C:S:A)Cement (kg)Fine Sand (kg)Coarse Agg (kg)Water (lit)
M7.51 : 4 : 8180 – 210700 – 7501350 – 1450110 – 130
M101 : 3 : 6220 – 250650 – 7001250 – 1350120 – 140
M151 : 2 : 4280 – 320550 – 6201150 – 1250140 – 160
M201 : 1.5 : 3350 – 380500 – 5501100 – 1200160 – 180

* Weights indicative (based on IS 456). Fine aggregate = coarse sand (zone II). Coarse aggregate 20mm & 40mm graded.

M7.5 (1:4:8) – commonly used for mass fill, leveling course, and road sub-base (lean concrete).
M10 (1:3:6) – foundation blinding / general leveling.
M15 (1:2:4) – floor bases, sub-base for roads.
M20 (1:1.5:3) – heavy duty floors, pavement quality concrete.

⚙️ Note: 1:4:8 mix (M7.5) is widely used for PCC below foundations and under floors – lean concrete with nominal cement content.
3. PCC LAYING PROCEDURE
3.1 Preparation & Subgrade
  • Ensure subgrade is compacted, leveled, and approved.
  • Mark levels with pegs at 2m intervals; set formwork to required thickness (usually 75–150mm).
3.2 Mixing & Transport
  • Use mechanical mixer (or batching plant for large volumes).
  • Mix cement, sand, aggregates dry, then add water gradually.
  • Transport by wheelbarrow, dumper, or concrete pump.
3.3 Placing & Compaction
  • Pour concrete evenly between formwork; spread with shovels/rakes.
  • Compact with plate vibrator / needle vibrator (avoid segregation).
  • Screed to correct level; float finish smooth if required.
3.4 Curing & Protection
  • Start curing after initial set (cover with wet hessian / polythene).
  • Keep moist for at least 7 days (or as per spec).
  • Protect from rain, traffic, and damage.
4. RESOURCES PLANNING
Tools & Tackle
ItemQuantityRemarks
Concrete mixer (0.5/1.0 bag)
Plate compactor / vibrator
Shovels, spades, rakes
Wheelbarrows
Screed boards / floats
Formwork material (ply/wood)
Manpower (typical per shift)
CategoryNos.
Engineer / Supervisor1
Mason (for finishing)2
Skilled labour (mixer operator)2
Unskilled labour6–8
Safety watch1
📏 PRODUCTIVITY & MEASUREMENT
Labour / machine output (8h)
ActivityOutputRemarks
Mixing (0.5 bag mixer)4–6 m³per mixer
Placing & compacting8–12 m³team of 6
Finishing (screeding)50–80 m²per mason

Measurement units: m³ for concrete; m² for area (if thickness fixed).

⛑️ SAFETY & QUALITY
PPE & Precautions
  • Helmet, gloves, gum boots, safety glasses.
  • Barricade area; watch for moving machinery.
  • Proper lifting techniques for manual handling.
Quality Checks
  • Slump test at regular intervals.
  • Check thickness, levels, and compaction.
  • Curing records maintained.

TOOLBOX TALK RECORDS

Date:
MSRA
Name
Signature
Date
Toolbox talk carried out by:
A completed copy must be sent to the EM TS EHS Manager.

Er. Kuljit Singh · Arshavtar.in