Method Statement Template
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL
QATAR
Project No. : 242 Form No.: P07-F06 / Rev. 0 / Nov. 2012
ClientConsultantContractorSubcontractor
MR. FAHAD ALFARDAN
METHOD STATEMENT FOR CONCRETING of Suspended Slab and Beam.
.
Project Logo
Project Name : BEACH VILLA (B+G+1+PH) ON BVN 55-60, PEARL
QATAR
Project No. : 242Location: PEARL QATAR
ClientConsultantContractorSubcontractor
MR. FAHAD ALFARDAN
METHOD STATEMENT No: MTS-S-009REV : 0
ORIGINATOR : AMTCDISCIPLINE: CVL/STRL
Title : Method Statement for Concreting of Suspended Slab and
Beam.
REVDATESTATUSREVISION DETAILSREVIEWER / APPROVER
SubConMain Con EXTERNAL
017-Aug-14FAFOR REVIEW & APPROVAL
NW
Status Code:
D: DraftFI : For InformationFC : For Construction
P: PreliminaryFA : For Approval* External Authorization
(Client), where required
Distribution :
Table of Contents
1. Scope /Objectives 2. Reference3. Access/Egress4. Logistics5.
Health and Safety Hazards6. Definitions 7. Responsibilities /
Supervision8. Procedures /Method to be Employed9. Training10.
Working hours11. House keeping12. Manpower Requirement &
Supervision13. Material Requirement14. Plant & Equipment
Requirement15. Q.C Approvals and other Documentation16. Supporting
documentation17. Distribution18. Other information19. Site Safety
Engineers Approval20. Attachments (Compulsary) Risk Assessment
Inspection and Test Plan Quality Control Check Lists PERI Brochure
SKYDECK Concreting Machine Location and Concreting Direction for
Main Villa Ground Floor Slab and Beam Construction Floor Slab and
Beam Construction Main Villa Elevator Shaft Framework
1. SCOPE & OBJECTIVESThe Purpose of this procedure is to
ensure that Concreting works of Suspended Slab and Beam are
executed in accordance with the contract requirements, hazards are
analyzed, safety procedures implemented all quality
assurance/control activities are conducted in a systematic manner,
works inspected and conformance is verified and documented for
Beach Villa on BVN 55-60 at The Pearl Qatar.
2. REFERENCESContract Drawing and specification2.1 QCS 2010
Section 12 Earthworks.2.2 QCS Section 05 Concrete Supply
Construction Testing2.3 Project Health, Safety and Environmental
Guidelines2.4 Project Inspection and Test Plan Civil Works2.5
British Standard : BS 8110 Structural use of concrete2.6 British
Standard : BS 1881 Testing of concrete2.7 American Standard : ACI
305 r Hot Weather Concreting2.8 Method Statement for Earthwork,
Excavation, and Backfilling.2.9 Project Specification Section
5.
3. ACCESS/ EGRESSAdequate access and egress should be provided
to the site. Access will be through designated entrance and exit
pathways only.
4. LOGISTICSContractor will deploy a dedicated team for the
concreting works. 5. HEALTH & SAFETY HAZARDS5.1 All workers
involved will be trained in hazards recognition and control
measures necessary. 5.2 All the personnel will be provided with
toolbox talk on the procedures to execute the work safely.5.3
Safety system / method of work that covers concrete receiving,
placing on site, pouring operations will be established by member
management team. 5.4 Appropriate personal protective equipment
(PPE) should be worn at all times.5.5 Secure barricades within the
area whenever necessary.5.6 Washing facilities should be
provided.5.7 Formworks should be checked before concrete is put in
place.5.8 The accumulation of concrete spillage should be
prevented.5.9 The effect of weather conditions should be considered
and appropriate allowances made especially on hot weather.5.10 Only
qualified and trained personnel will do the task.
6. DEFINITIONSAEB Arab Engineering Bureau
(Consultant/Engineer)AMTC Abdullah Al Muftah Trading and
Contracting Co., w.l.l (Main Contractor)MS Method StatementQCP
Quality Control ProceduresITP Inspection and Test PlanITA
Independent Testing Agency
7. RESPONSIBILITIES / SUPERVISION7.1 Project Engineer shall be
responsible for the execution of this procedure and to ensure that
works are undertaken in a safe manner to the requisite quality and
to the time agreed timescale. He shall advise and coordinate with
other contractors pertaining to access and interface requirements
related to the excavation works to be undertaken.7.2 Site Engineer
shall be responsible for the site implementation of this procedure
including control and the safety of the workers.7.3 Surveyor in
coordination with site engineer has the responsibility to perform
all survey works according to the IFC drawings.7.4 QA/QC Inspector
shall be responsible for the supervision of tests and inspection,
control approvals for testing and inspection plan and to arrange
documentation required.7.5 Safety Officer shall be responsible for
the strict implementation of safety procedure during work
commencements.
8. PROCEDURE / METHOD TO BE EMPLOYED:8.1 Generala. Testing and
frequency of material related to concrete, design mixes, batching
and mixing of concrete, transporting of concrete, tests on green
and hardened concrete and submittals shall be made in accordance
with Contract Technical Specification and the latest edition of
Qatar Construction Specification (QCS).b. Delivery, Storage,
Testing frequency of reinforcement bars and submittals shall be
made in accordance with BS 4449.
8.2 Reinforcementa. All steel reinforcement shall comply with BS
4449 or ASTM A 615/A 615M.b. Reinforcement bars shall be stored
over timber beams, at least 20 cm above ground level. All the bars
shall be protected from weather, dust and humidity by covering with
tarpaulins or polyethylene sheets. c. Bar bending schedules in
accordance with BS 8110 shop drawings shall be prepared by approved
steel reinforcement Fabrication Company (by ERF).d. Cutting,
Bending and fixing of reinforcement shall be carried in compliance
to BS 8666 and Part 11.4 and 11.5 Section 5 of Qatar Construction
Specification (QCS) and as per the approved bar bending schedules
and shop drawings. e. Lap lengths of reinforcement shall be
according or indicated in the approved IFC drawing.f. Minimum
concrete cover of 25 mm and 20 mm for beams and slab respectively
shall be maintained as per the approved drawings and
specifications.g. The concrete spacer block dimension shall be as
per specified thickness cover and shall be made with the same mix
proportion as the structures.h. All necessary spacers and chairs
shall be provided to maintain the specified covers. Chairs bars
shall be provided at 1 meter maximum intervals on both direction to
maintain the top and bottom covers or should meet the approved
drawings & specification requirements.i. The fabricated bars
shall be kept in position as approved in shop drawings and tied
with approved tie wires. The ends or wire shall be bent into the
concrete.8.3 Formworksa. All formworks shall be done in accordance
to BS 5975 and BS 8110; Section 5 of Qatar Construction
Specification (QCS).b. Scaffolding for working and access platform
shall be erected and inspected by trained personnel.c. Formworks
shall be design and supply by PERI Qatar (see attached SKYDECK
BROCHURE) and shall be in accordance with BS 5975 and BS 8110; Part
9, Section 5 of Qatar construction Specification (QCS). See also
attached Main Villa Elevator Shaft Framework.d. Formworks to be
used shall be marine plywood furnish in largest practicable sizes
to minimize number of joints.e. Fabricate and install forms for
easy removal to avoid damage to cast concrete surfaces when
stripping. The formworks shall be braced enough to withstand
external forces during concrete casting.f. Form ties shall be
factory-fabricated for securing formworks and shall be installed as
per PERI Qatar design and recommendation. Form ties designed to
resist lateral pressure during concrete placing.g. Lines, levels
and dimensions shall be mark by surveyor before and after formworks
installation and shall be maintained during concrete casting.h.
Temporary opening shall be provided for cleanouts and shall be
closed and securely braced to prevent loss of concrete mortar.i.
Coat contact surfaces of forms with form-release agent before
placing of reinforcement.j. The periods of striking / removal of
formwork shall be 4 days for slab soffit formworks (props left
under) and 10 days for beam soffit formworks (props left under).
Removal of props to slab is 11 days and removal of props to beam is
15 days and in compliance with Table 9.1 of QCS Section 5 Part
9.5.2. 8.4 Embedded Items / Servicesa. Install anchor rods,
accurately located to elevations required.b. All the Embedded
Services / sleeves for MEP works shall be in compliance with
approved MEP Drawings.c. Place and secured embedded items and
services tied enough not to displace during concrete casting.d. All
MEP services embedment shall be installed, inspected and approved
prior to concrete casting.e. Gravity testing inspection for
embedded drainage pipe system shall be done and documented before
concrete casting. 8.5 Concretinga. Structural concrete shall be as
per approved mix design specified on structural drawings and in
compliance with Part 8 Section 5 of Qatar Construction
Specification (QCS).b. Structural concrete works shall commence
upon completion / approval of reinforcement and formwork
activities.c. Site Engineer shall ensure that the formwork provided
for the required shape and dimensions are in accordance with the
drawings.d. Reference levels for top of the concrete shall be
provided by Surveyor at the liner of forms. Steel pins / nails
shall be provided at intermediate areas as guide levels for the
required elevation.e. Adequate working platforms shall be provided
for compaction / vibration and other activities.f. All the surfaces
shall be cleaned. Foreign matters such as saw dust, wooden and wire
pieces shall be removed prior to Concreting.g. All safety
precautions shall be followed.h. Site Engineer shall ensure the
availability of standby vibrators; pokers, hand tools, Hessian
clothes, polythene sheets and enough water shall be available on
site.i. The number and size of vibrators shall be such as to ensure
thorough compaction of the entire volume of concrete poured.
Standby units shall also be provided.j. Concrete placement sequence
shall be planned in a manner so to have minimum repositioning of
the transit mixer /concrete pump/crane (see attached Concreting
Machine Location and Concreting Direction). See also attached
Ground Floor Slab and Beam Construction (Main Villa and Pool Annex)
including top level of concrete.k. All the chutes, buckets, pokers
and hand tools shall be cleaned with water before and after
concreting.l. Surfaces of the formworks shall be kept moist;
standing water shall be removed before concreting.m. Concrete shall
be ordered only after approval of the Inspection Request (IR) to
place concrete by AEB representative.n. During hot weather
conditions the following precautions / preventive measures shall be
taken as applicable / required to control the effect of high
ambient temperature, and low relative humidity : Cooled water / ice
shall be used for batching / mixing concrete. Water shall be cooled
by using chillers, ice (if necessary) to maintain concrete
temperature equal to or below 32 deg. C. Maximum shade temperature
during placing of concrete shall be not more than 35 deg. C. To
keep cool, transit mixer drum surface shall be painted white, which
shall minimize solar heat gain. Transit mixers drum surfaces shall
be kept cool by covering them with wet Hessian clothes, damp by
spraying water. Water shall be sprayed to the concrete mixer drum
before batching and during delivery. Pouring shall be planned /
scheduled on the evening hours when the weather condition is
favourable and adverse exposure of the concrete to the environment
can be avoided. Time to transport, place, consolidate and finish
the concrete shall be minimized by proper planning and
coordination.o. Concrete shall be delivered to site and used within
90 minutes after the introduction of water and shall be placed and
compacted to its final position. Batch interval to monitor and the
pouring rate per hour will be recorded.p. The delivery ends of the
pump hoses shall be kept as close as possible to the delivery
points; the drop height shall be minimized to 1.5m (max) to avoid
segregation.q. Vibrators shall be operated at regular intervals to
produce dense, compact, homogeneous concrete surface without
segregation and ensure thorough compaction of the entire volume of
the concrete.r. Vibrators shall be withdrawn slowly to prevent the
formation of voids and shall not be placed against compacted
concrete. It shall not be used for transporting concrete.s. Surface
finishes shall be done as per clause QCS Section 5. 8.6 Curing of
Concretea. Water to be used for curing shall be free from salt,
harmful matters and other impurities.b. Curing will be done after
the concrete has been placed in position. Concrete shall be cured
to a minimum of seven days.c. The concreted surface shall be
covered with polythene sheets soon after the surface finishing. The
polythene sheeting shall be raised to a short distance above the
concreted surface of unformed surfaces. Polythene sheets shall be
removed and replaced with wet Hessian after the concrete hardens.
The Hessian shall be kept damp continuously during curing period to
ensure that all horizontal and vertical faces of concrete surface
are wet / damp during the curing period.
8.7 Testing:a. Testing on concrete aggregates is to be as per
QCS Section 05 part 6.4.b. Slump and temperature of fresh concrete
supplied to site shall be monitored and checked in accordance with
QCS Section 05.c. Strength testing (cubes): 3 cubes for every 25
cum minimum or 1 set per day that concrete is placed, one tested at
7 days and two tested at 28 days. d. Testing of steel reinforcement
will be done every delivery to have random testing or as in
conformity with QCS section 5 Part 11.8.8 Protection of Sub
Structures All structures below ground to be protected with an
approved water proofing system.8.9 Embedmentsa. Anchor bolts to be
fixed to correct level and line with templates and secured firmly
to prevent any displacements during concreting. b. PVC Ducts and
Sleeves are placed in position, and supported adequately prior to
concreting, by securing to formwork and or rebars.c. No welding
shall be done to the rebars, for fixing the embedments. 9 TRAINING
Relevant trainings and orientations have been provided to person
who will perform their specified task.
10 WORKING HOURSAs scheduled.
11 HOUSE KEEPING Working Areas will be kept clean by disposing
the waste materials at the designated areas. At the end of days
work, installation supervisor will ensure that the debris are
disposed off.
12 MAN POWER REQUIREMENT ForemanLaborersOperators
13 MATERIAL REQUIREMENT All concrete and steel reinforcement
materials to be used shall be duly approved. Installation / placing
shall conform to Project Specifications.
14 PLANT & EQUIPMENT REQUIREMENT a. Batching Plantb. Transit
Mixerc. Concrete Pumpd. Vibrators (with standby units)e. Hand
toolsf. P.P.E.
15 QC APPROVAL AND OTHER DOCUMENTRY REQUIREMENTS:All works shall
be done with accordance to Approved Method Statement and Project
Specifications. Request for inspection shall be submitted for
Engineers approval prior to the works commencement. 16 SUPPORTING
DOCUMENTATION: This MS to be read in conjunction with the below
referenced documents Contract Specification & approved
drawings. Project Quality Plan Project HSE Plan
17 DISTRIBUTIONCopies of this MS will be circulated to the
following for Information & action Sr. Construction Manager
Site Engineer QA/QC Engineer HSE Engineer
18 OTHER INFORMATION
Ensure that all the activities have been carried out to suit the
site conditions and involvedWith Site in charge
19 MAIN CONTRACTORS SAFETY ENGINEERS APPROVAL
APPROVAL STATUSSIGNATURE
Approved
Approved subject to compliance with the following notes
Not Approved with reason
20 ATTACHMENTS (Compulsory) Risk Assessment Inspection and Test
Plan Quality Control Check Lists PERI Brochure SKYDECK Concreting
Machine Location and Concreting Direction for Main Villa Ground
Floor Slab and Beam Construction Floor Slab and Beam Construction
Main Villa Elevator Shaft Framework
Method Statement for Concreting of Suspended Slab and Beam. Form
No. P07-F06 / Rev. 0 / Nov. 2012AEB-CSD Quality Forms Page 1 of
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Method Statement for Concreting of Suspended Slab and Beam. Form
No. P07-F06 / Rev. 0 / Nov. 2012AEB-CSD Quality Forms Page 11 of
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