METHOD STATEMENT

of LEAN CONCRETE

for BUILDING WORKS

Table of contents1. General.2. Sequence of works.3. Backfill or excavate to the design level4. Formwork design.5. Placing of concrete.6. Compaction of concrete.7. Curing8. Dewatering9. Electricity 10. Equipment & Manpower

AppendixA. Plan of three main buildingB. 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 WorksPleased 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 levelExcavation 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 ConcreteApproved 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. DewateringTwo nos of water pump (one for spare) shall be arranged on site with enough hose9. ElectricityElectricity will supplied by stand by generator on site.10. Equipment & Manpower

a)EquipmentEquipment Unit Quantity

Mixer truck Nos 02Tamping Ramer No 01Vibrator Nos 02Wheel barrow Nos 05Water Pump 2 HP No 01Water Pump 1HP No 01Generator 15KVA No 01Generator 10KVA Nos 02Bucket Nos 10Showel Nos 05Trowel Nos 05

b)Equipment

Description Unit QuantitySupervisor No 01Surveyor Nos 02Foreman No 01Electrician No 01Worker Nos 08

APPENDIX AFOUNDATION PLAN OF THREE MAIN BUILDING

APPENDIX B

FORMWORK DESIGN & TYPICAL OF FILLING MATERIAL