Quality Assurance Plan

PURPOSE OF MANUAL

The purpose of this manual is to provide supervisors with instruction, data and specifications relating to the control of the installation and placement of materials in the structure. It is the responsibility of all the Building inspection staff to become thoroughly familiar with the contents of this manual.

The Manual is to be read in conjunction with the Drawings and specifications pertaining to the project, these are not incorporated in this manual. Complete sets of the Drawings and specifications will be made available at the Site Office.

The manual will also be followed to ensure achievement of Quality works.

1.0 DUTIES OF INSPECTION STAFF

1.1 Project Manager

Reports to: Operational Head

Core Function

Responsible for the overall site coordination; to ensure that all the building works are executed to the acceptable standard and delivered within desired schedule set by the client.

Core Duties:

A Project manager controls all aspects of the site including;

Planning for both short and long term activities of the site.
Acquisition of materials, ensure procurement, purchase, delivery and proper storage of materials.
Responsible for ensuring a contract is completed on time.
He will ensure to keep the Project within the timescale and budget means
Manage any delays or problems encountered on-site during a construction project.
Also involved in the role of ensuring and managing of quality control systems for the construction works, health and safety checks and the inspection of work carried out.

1.2 Site Engineer

Reports to: Project Manager

Core Function:

Responsible for the day-to-day operations on site in regards to technical proficiency of works

Core Duties:

Preparation of detailed Work program and preparation of shift Duty Rotas.
Responsible for the interpretation of drawings, reports and other data presented by the Consultant.
Writing Method statements proposals and as built drawings.
Prepare monthly statement for submission to the Project Manager.
Writing Daily, Weekly & Monthly Site Reports.
Carrying out checks and inspection of works executed.
Notify the Consultant of day-to-day Concreting operations.
Ensure that Manpower, equipment, sampling and testing facilities are adequate to ensure project concrete quality.
Receive, complete and distribute Concrete Placement checkout forms.
Ensure the Site Manager is promptly provided with any relevant documentation received from either the client or authorities.
Identify and record any possible variations to the contract, ensuring the Project Manager is promptly notified.
Ensure that all statutory requirements (eg. Local Council) are adhered to on site at all times.

1.3 Quantity Surveyor

Reports to: Project Manager at Site Level with line supervision by Cost Control and Management

Core Function:

Shall carry out the duties of a Quantity Surveyor.

Core Duties:

Assist with the preparation of measurements of works executed and preparation of certificates.
Verify measurement of works executed by the subcontractors.
Prepare reports on progress of executed works.
Assist in the preparations of the variations deemed necessary.

1.4 Electrical/Mechanical Engineer

Reports to: Site Engineer

Core Function:

Electrical/Mechanical engineers’ core responsibility is to supervise installation of electrical control systems and/or components to required specifications, focusing on the estimated budget, safety, reliability, quality and sustainability.

1.5 Surveyor

Reports to: Site Engineer

Core Function:

Shall provide sufficient and adequate line and grade control for all features of the project.

Core Duties:

Solely responsible for the accuracy of the Survey control established by his team.

1.6 General Foreman/Assistant Site Engineer

Reports to: Site Engineer

Core Function:

Responsible for all the temporary and permanent works at site. Also responsible for all the concrete operations: forms, mixing, pouring and final finishes of Concrete.

Core Duties:

He is responsible for the supervision and coordination of site personnel and sub-contractors.
Plan the Work area and activities for each shift.
Maintain a daily dairy noting the activities carried out; labor force and equipment used.
Assist the Site Engineer to plan the activities ahead.
Ensure all site resource (labor, machinery, materials, sub-contractors etc.) are effectively utilized and monitored in order to achieve timely completion of projects.

1.7 Safety Officer

Reports to: Site Engineer

Core Function:

To develop safety policy at Site and ensure these policies are followed.

Core Duties:

Ensure that there is sufficient Personnel Protective Equipment and that all workers at Site wear them.
Work hand in with the security agency to ensure protection of third party to the project.
Should have in store first aid tools and kits and should be able treat workers in case of an emergency.
Ensure site personnel wear the appropriate safety equipment at all times. Equipment such as retro-reflective signage, barriers, reflective tapes and lighting equipment are some examples of safety equipment that will be availed.
Ensure that all requests to perform unsafe work practices that may result in damage to machinery, people or property are declined.
Notify the Site Engineer of any unsafe or potentially hazardous situations on site.

1.8 Site Administrator

Reports to: Site Engineer with Line supervision at Finance

Functions/Responsibilities:

Maintain/set up a project filling system for the Project Management.
Coordinate receipt and processing of submittals from sub contractor and preparing for Site Engineer’s approval and returning to originator.
Manage site office to include maintenance, cleaning, equipment and supplies.
Ensure continuance of office routine in Site Engineer’s absence. May write reports, letters, memos etc. for supervisor’s signature.
Coordinate and process general administrative work (time sheets, vacation requests, supply requisitions etc.) for supervisor’s signature.
Maintain records of overtime and present for payments.
Perform additional assignments per supervisor’s direction.

1.9 Storekeeper

Reports to: Site Administrator

Core Function:

The Storekeeper duties involve receiving `deliveries, coordinating of stock, maintaining records, and overseeing storage of surplus inventory and property of the company.

Core Duties:

Receives and inspects all incoming materials and reconciles with purchase orders; processes and distributes documentation with purchase orders; reports, documents and tracks damages and discrepancies on orders received.
Fill supply requisitions; assist Procurement office to order adequate Materials to the site;
Receives, stores, tags and tracks surplus property;
Receives and stores documents and confidential files; maintains record of approved document and confidential file destruction.
Maintains the storehouse, records area and stores area in a neat and orderly manner.
Answers questions regarding procedures and resolves discrepancies regarding receipts, deliveries, warranties, repairs and surplus property.

2.0 Drivers

Reports to: Site Administrator

Duties to be performed:

Performing the duty of driver at Site.
Guide in the loading and offloading of the trucks.
Completing paperwork such as logs, fuel records, receipts, etc.…
Inspection of the vehicle before commencing driving duties and performing minor repairs when required.
Keeping the vehicle clean.
The Logistic officer may assign any other duties you as deemed necessary from time to time.

Quality assurance of Concrete Construction

Responsibilities

The responsibility for performing quality workmanship of concrete rests primarily with the Contractor and subcontractor superintendents actually supervising the performance of the work.

Concrete Production

Concrete production shall be closely monitored. This monitoring shall include, but necessarily limited to, the following items;

Materials

Samples of materials to used to be furnished for approval.
Mix designs for the different concrete grades to be provided.
Test results from the design mixes to be provided for approval.
Shop drawings for steel reinforcement and embedded steel should be approved where necessary.
Test reports, mill certificates and other certificates of compliance for all materials shall be made available.

Storage and Handling

Cement will be adequately protected from exposure to moisture during intermediate storage and in loading and unloading operations.
Storage will be weather tight and properly ventilated.
Sufficient storage capacity will be available.
Last in last out stock system is used to reduce waiting time to usage of cement.

Stockpiles

Aggregate stockpile areas will be graded, drained, and compacted.
Aggregates stockpiles will be separated.

Water

Water supply for mixing will be clean and not contaminated; water tap from NWSC is connected to Site where necessary .in the eventuality that NWSC water is not available ,water will be sourced from approved sources.

Control of Concrete Placements

The monitoring of Concrete placement shall include, but not necessarily limited to the following;

Placement – Foundation

form materials
Check that reused form materials have been reconditioned as required.
Check location, dimension and alignment.
Check ties and bracing to maintain position, shape and alignment of form.
Temporary spreaders arranged so as to be easily removable as concrete rises in the form.
Forms to be oiled wetted and sealed.
Monitor movement during placement operations.

Reinforcement

Check bar diameter, bar lengths, length of splices, bar to bar spacing and clearances.
Reinforcement to be cleaned of all rust, dried concrete, oil, grease, or foreign materials
Reinforcement to be tied and supported securely.
Mill certificates will be submitted.

Curing

Curing will start as soon as concrete hardens sufficiently.
Curing is to be continuous for at least 7 days depending n the design strength requirements and the mix design used.

Concrete cube sampling

Three (3) Concrete cubes will be picked for every 50CM of concrete cast and testing done at 28 days strength.

Protection

Precautions will be taken to protect surfaces from rain, water etc. For example by use of Heavy-duty Damp proof sheets to cover fresh concrete in case of rain pour.
Check requirement-governing time for removal of forms and supports.

Control of Earthwork Construction