Method Statement For Protection Screed 4v611m

METHOD STATEMENT FOR PROTECTION SCREED OF WATERPROOFING MEMBRANE

CONTENTS

PAGE

1.0 SCOPE

3

2.0 RESPONSIBILITY

3

3.0 MATERIALS & EQUIPMENT

3

4.0 EXECUTION

3

5.0 PREPARATION

4

6.0 APPLICATION

4

7.0 FIELD QUALITY CONTROL

4

8.0 SAFETY PECAUTION

5

9.0 REFERENCE DOCUMENTS

5

1.0

SCOPE This method statement describes the procedures and responsibilities of site personnel which are involved in the work for protection screed of waterproofing membrane.

2.0

RESPONSIBILITY 2.1

Project Manager is overall responsible for all aspects of the works / project.

3.0

2.2

The Project Site Engineers are responsible for proper execution, arrangement, coordination & supervision for the quality, safety & delivery of work.

2.3

The Approved Concrete Ready Mix Supplier, is responsible for the continuous delivery of the concrete as per the approved design mix & project specifications requirement, from batching, transporting, controlling of temperature & slump, up to taking the required concrete test cubes samples upon arrival to site.

2.4

The Project QA/QC Manager & Engineers shall ensure that execution team is following this method statement & implementing the site inspection procedures. The QA/QC Engineers shall monitor, check, control & document the quality of concrete delivered to site, & the quality of work during the entire duration of casting.

2.5

Safety Engineer or Safety Officer will ensure the implementation of safety at work site.

MATERIALS & EQUIPMENT 3.1 3.2

4.0

EXECUTION 4.1 4.2 4.3

5.0

Inspection of completed layers of water proofing should be carried out if no damage or any unsatisfactory workmanship. Install the approved gauge 1000 of polyethylene sheets as per method statement of waterproofing manufacture/suppliers. Proceed with concreting protection screed at the required thickness of 50 mm., only after unsatisfactory condition have been rectified.

PREPARATION 5.1 5.2 5.3 5.4 5.5 5.6

6.0

Approved concrete design & trial mix for protection screed. Approved Polyethylene sheets in the waterproofing system.

Clean and prepare the water proofing surface according to Manufacturer/ Supplier. Remove all dirt’s or deleterious materials and other pouring materials which can damage the water proofing membrane during concrete pouring. Establish the reference 1.0 M elevation from SSL and high level elevation of Concrete Protection Screed as per approved shop drawing and Specification. Install approved polyethylene sheet on the top of water Proofing membrane as per Manufacture/ Suppliers method statement. Install the forms along the construction ts of the protection screed. Get the approval from the Engineers for application or placing of concrete.

APPLICATION

6.1 6.2 6.3

6.4

6.5 6.6 6.7

7.0

FIELD QUALITY CONTROL 7.1 7.2 7.3 7.4

8.0

Monitor the Temperature and Slump of Ready Mix Concrete Ensure the Quality of delivered ready mix concrete at site Ensure concrete cube sampling as per Specification. Ensure Quality workmanship, required thickness during pouring activity

SAFETY PRECAUTION 8.1

8.2 8.3

8.4 8.5

5.0

Determine the weather condition if hot condition, sand storm condition, rainy condition or sunny condition, before placing the Order of Concrete to Ready Mix supplier. Sprinkle clean water on the top of polyethylene sheet for bonding of concrete. When the Ready Mix Concrete arrived inform to the Engineers and applies the QCTesting of Concrete standard like slump test, temperature and volume at concrete check point. Place the Ready mix concrete by Concrete Mobile Pumps or direct pouring with chute and fallow the basic method statement for placing of concrete using Concrete Mobile Pump or direct pouring. When the Ready mix concrete placed on the area, level the concrete according to approved level of screed. Finish as per required surface finish the screed according to Specification or approval by Engineers. When the initial set of concrete occurs, apply immediately an approved curing compound or water curing.

Prime importance shall be given to safety of personnel and protection utility Service. It ensures that the personnel involved are thoroughly aware of the company Safety regulation. Any Machineries and Equipment must operate only by well trained and experienced personnel. Protective clothing and equipment will be necessary and will ensure that any special protective clothing or equipment required and any signs relating to the wearing of helmets, eye protection, ear defenders, visibility vest etc., are ordered and available for use on site and that subcontractors are made aware of any site requirements, especially for the wearing of safety helmets. Instruct staff in the correct handling and lifting of materials as required for the handling of materials which could cause injuries to the hands. Risk assessment letter should issue by Safety In-charge before start of activity and immediately post at the working area during activity.

REFERENCE DOCUMENTS

5.1 Project contract specifications – QCS Section 5, Part 8 5.2 Project contract drawings. 5.3 Qatar Construction Specification