TABLE OF CONTENTS
1.0 INTRODUCTION
2. 0 PURPOSE
3.0 REFERENCES
4.0 RESOURCES
5.0 METHODOLOGY
5.1 FLOWCHART FOR CASTING
WHEEL STOPPER
5.2 REINFORCEMENT
5.3 FORMWORK
5.3 CONCRETE PLACING, COMPACTION AND FINISHING
5.4 CONCRETE MIX PROPTION
6.0 RESPONSIBILITIES
7.0 QUALITY ASSURANCE / INSPECTIONS AND
TESTING
8.0 SAFETY PLAN
METHOD STATEMENT FOR CASTING
OF WHEEL STOPPER
1.0
INTRODUCTION
WPC Office complex is a
sixteen storied building with total floor area is about 40,000sq.m including
basement, ground floor and level 01 for parking area, eleven no’s of office
floors and council chamber at the 13thfloor level.
2.0 PURPOSE
The purpose of this method statement is to describe the process of casting
wheel stoppers of parking floors in compliance with all the required
specifications, standards and proper construction procedures.
3.0
REFERENCES
Structural Construction Drawings
Approved Shop Drawings
Chemical Anchoring Technical detail
4.0
RESOURCES
4.1
Material
Ordinary Portland
Cement
Course Aggregate
Fine Aggregate
Water
Reinforcement
Approved Chemical
Anchor
Wheel stopper Mould
(Steel or Plywood)
4.2 Tool
Hammer
Drill
Drill
bits
Cleaning
Brush
Porker
Level
Bar
4.3
Man
Power`
In charge Engineer
Assistant Engineer
Survey Helper
Concrete Supervisor
Skilled workers
Unskilled workers
Safety officer
5.0.
WORK PROCEDURE
5.2.
Reinforcement
·
The rebar diameter, number, spacing is
to be as per the approved drawing.
·
Adequate concrete cover to be maintained
on all rebars.
·
Rebar to be anchored to the floor slab by
using chemical anchor as per the Annex A
detail.
·
The line and level of rebar is to be
checked prior to casting
·
Rebar and existing concrete floor will
be presented for inspection
5.3.
Formwork
·
The Formwork/Mould should be cleaned and
clear from any deflection
·
Place Formwork/Mould and supports to its
dimensions correctly and ensure that lines and levels are within the
tolerances.
·
Gaps in the mould must be plugged out to
minimize the possibility of grout loss during the operation.
5.4.
Concrete placing, compaction and finishing
·
All surfaces shall be cleared
thoroughly.
·
Appropriate arrangement and approval for
pouring concrete shall be obtained from consultant.
·
Proper grade of concreting (Grade 25N/mm2)
should be done by using machine mixing concrete as per the approved
construction drawing and consultant requirement.
·
The compacting of concrete shall be done
by mechanical vibrator.
·
Concrete cover to be maintained as per
the drawing during casting operation.
·
Adequate
illumination shall be provided during night concreting.
·
Great
care shall be exercised during the removal of formwork/Mould.
·
Curing shall be continued for minimum of
7 days according to Project Specification.
·
Surface
defects if any corrected as per the engineer instruction.
5.5 Concrete
Mix Proportions
|
Specified Mix
|
Equivalent Grade
|
Quantities Per 50 Kg
Bag
|
|||
|
Fine Aggregates
|
Coarse Aggregates
|
Water Content (L)
|
|||
|
01:1.5:03
|
25
|
0.053 m3
|
0.105 m3
|
22.5
|
|
|
1:1.5 boxes
|
3 boxes
|
||||
|
Internal Dimensions of Boxes - 400mm × 350mm × 250 mm
|
|||||
6.0.
RESPONSIBILITIES
|
Position
|
Responsibility
|
|
Engineer in charge
|
1. Get
approval for Concreting
2. Cleaning
of debris in the form work.
3. Sealing
the joints of formwork to avoid the grout leaks.
4. Curing
of Concreted elements.
|
|
Concrete
In charge Engineer
|
1. Estimating
the required Concrete volume
2. Keeping
records of concreting.
3. Quality
controlling of Concreting.
|
|
Construction
Supervisor
|
1. Assist
to the Formwork/Rebar/Concrete In charge.
2. Handling
the Concrete gang.
|
|
Concrete
Forman
|
Handling
the Concrete gang.
|
|
Survey
Helper
|
Maintaining
the verticality and required levels of the concrete elements.
|
|
Admin
Officer
|
Providing
the welfare facilities for Concreting staff and for workers.
|
|
Safety
Officer
|
Marinating
Safety and Health in the working area.
|
Table
5.1 Responsibilities
7.0. QUALITY ASSURANCE
/ INSPECTIONS AND TESTING
Concrete Sampling &
Testing Plan
A
sample for concrete shall be taken randomly where consultant instructed
locations.
Concrete
Test cubes (150 mm x 150mm x 150mm) shall be tested for compressive strength
assessment at 7 days and 28 days (three specimens at 7 days and three specimens
at 28 days) in accordance with BS 5328.
The Test Plan
6 cubes (7days 3nos, 28days 3nos)
Inspection for Construction
All kinds of inspection for
construction shall be carried out by the site Engineers along with Engineers
representative and QAQC Engineer of SANKEN as per the standards and
specifications.
However, prior information shall be given to
Consultant representative at site to proceed necessary checking’s periodically
& make final comments.
Inspection and approval shall be obtained while
progressing of the work without affecting to the progress of the work.
8.0 SAFETY PLAN
Safety of the
personnel and properties is to be given prime importance and all the works to
be carried out without causing any accidents or property damages.
·
Adequate access and egress should be
provided to the site for work
·
All workers should wear basic personnel
protective equipments.
·
All the equipment, tools being used for
the work should be in good working condition and maintained.
·
Adequate
illumination shall be provided during night concreting.
·
First aid facilities and vehicles for
emergency cases shall be available at site.
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