METHOD STATEMENT

of

LEAN CONCRETE

for

BUILDING WORKS

Table of contents1. General.

2. Sequence of works.

3. Backfill or excavate to the design level

4. Formwork design.

5. Placing of concrete.

6. Compaction of concrete.

7. Curing

8. Dewatering

9. Electricity

10. Equipment & Manpower

AppendixA. Plan of three main building

B. Formwork design & Typical of filling materials

1. General

Excavation or Backfilling to

Design Level

This method statement describe how we construct lean concrete for Building

Works

Pleased refer to Appendix A for the plan of three main buildings.

This method statement covers for the lean concrete of all Building Works.

The filling material under lean concrete may be varied in difference location.

Concrete class shall be approved ready-mix concrete B7.5 (Grade 15NM/m2)

2. Sequence of works.

3. Backfill or Excavate to the design level

Excavation works will be carried out by manpower or by backhoe depend on

soil condition.

Backfilling works will carry out layer by layer. Thickness of each layer is not

more than 300mm.

a) Filling under piles cap of the building have piling foundation

Material using for backfilling works will be existing soil on site area or other

approved material if the existing soil is not enough.

b) Filling under directed foundation

The ground will be excavated up to soil treatment level, and then backfill up

to design level following approved design & material. Design of sub layer and

proposed material shall be submit separately.

Please refer to Appendix B for typical of filling material.

4. Formworks Design

Leveling & Compaction

Setting Formworks

Placing lean concrete

Curing for Concrete

After finish leveling and compaction works, formwork will be set out.

Please refer to Appendix B for formworks design.

Timber or steel will be used for formwork.

5. Placing of Concrete

Approved ready-mix concrete will transported from batching plant to the site

by mixer truck.

From mixer truck concrete will be delivered to casting location by bucket &

wheel barrow then pour out by showel or directly to the position.

6. Compaction of Concrete.

Concrete after pouring to position shall compacted by immersion vibrator.

7. Curing.

Curing of concrete will be carried out by spraying water periodically to the

surface of the newly placed concrete.

8. Dewatering

Two nos of water pump (one for spare) shall be arranged on site with enough

hose

9. Electricity

Electricity will supplied by stand by generator on site.

10. Equipment & Manpower

a)Equipment

Equipment Unit Quantity

Mixer truck Nos 02

Tamping Ramer No 01

Vibrator Nos 02

Wheel barrow Nos 05

Water Pump 2 HP No 01

Water Pump 1HP No 01

Generator 15KVA No 01

Generator 10KVA Nos 02

Bucket Nos 10

Showel Nos 05

Trowel Nos 05

b)Equipment

Description Unit Quantity

Supervisor No 01

Surveyor Nos 02

Foreman No 01

Electrician No 01

Worker Nos 08

APPENDIX A

FOUNDATION PLAN OF THREE MAIN BUILDING

APPENDIX B

FORMWORK DESIGN & TYPICAL OF FILLING MATERIAL