Quantity Surveying Practices

Quantity Surveying Practices

    • Wednesday, January 4, 2017

    Nominated sub contractors

    January 04, 2017 2
    Nominated sub contractors


    Nominated sub contractors can be identified as the contractors who are specifically refered under the main contract of the project. That mean nominated sub contractors are selected by the client. Therefore, once the project is awarded to the contractor, main contractor should get the service of those nominated sub contractor to carry out those specified works.

    Therefore there is no flexibility for the main contractor to select those nominated sub contractors.

    Even though, main contractor can make reasonable objection to go ahead with those nominated sub contractors based on their past experience, believing that sub contractor is lack of financial capacity and qualification to carry out the work, if the sub contractor does not agree to indemnify the contractor against and any misconduct by the nominated sub contractor.

    In general practice, nominated sub contractors are appointed to carry out works under Provisional sums. Therefore, main contractor is entitled to claim attendance, builders works and his markup on top of nominated sub contractors value of work done.





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    Domestic Sub Contractors

    January 04, 2017 1
    Domestic Sub Contractors


    This is the most common type of sub contractors that you can see in any type of construction project. Domestic sub contractors can be identified as the sub contractors who are directly working under the main contractor. The contractual relationship is in between Main Contractor and domestic sub contractor.

    Selection of domestic sub contractors is according to sole discretion of the main contractor. Therefore main contractor should hold the risk and responsibility for all the activities carried out by the domestic sub contractors.

    There are many advantages of having domestic sub contractors over other types of sub contractors. Because most of the time main contractor select his domestic sub contractors based on their past experience. As well as main contractor have the flexibility to choice sub contractors by considering in terms of cost which maximise his profit.

    Also main contractor have  well control over the domestic sub contractors due to durect contractual relationship.

    Not of the time main contractots are conming from a civil background and therefore sub contractors are required to carry out most of the MEP works. As well as there are labour supply sub contractors. They are also falling under domestic sub contractors. 


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     >> Types of Sub Contractors in Construction
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    Types of Sub Contractors in Construction

    January 04, 2017 0
    Types of Sub Contractors in Construction


    Construction project is a result of a combination of diversified industries mainly including, Construction civil works, architectural works, mechanical works, electrical works and Etc.
    Therefore involvement of different specialized professionals and labours and must in order to carry out work properly.

      In practically, main contractors do not keep all those specialized professionals and labours as employees because it is a huge expense and as well as it is risk to maintaining a large number of employees.

    Therefore it is ideal to get the service of sub contractors when there are specialize requirements in construction projects.

    Basically, there are three main types of sub contractors
    • ·         Domestic sub contractors
    • ·         Nominated sub contractors
    • ·         Named sub contractors
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    Monday, January 2, 2017

    Masonry Construction Robot on the job

    January 02, 2017 12
    Masonry Construction Robot on the job


    Newly developed Robot do masonry construction work in building project.
    This indicate that in future, Robots will replace all skilled and unskilled labour while increasing the productivity.
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    Thursday, December 29, 2016

    Evaluation of acceleration proposal

    December 29, 2016 0
    Evaluation of acceleration proposal

    Once the contractor requested to accelerate the project progress, a proposal shall be submitted for the evaluation. This particular proposal shall consist with revised method statement, revised project program, cost proposal related to the acceleration. 

     Then the proposal is evaluated by Client’s consultant team based on their criteria. 

     Revised project program is evaluated and consider the program is realistic and it meets Client’s requirements. (eg- completion date, achieving milestones etc)

     Revised method statement is evaluated by client’s technical team whether the revised method is viable and risk assessment is carried out to evaluate the risk related to the revised method. 

     Design changes are evaluated by clients design consultant team and consider those revised design proposals comply with intended requirement of the project and client’s specific requirements. 

     Finally, cost proposal of the acceleration is evaluated by client’s cost consultant. As well as it is must to consider the acceleration can improve the value for money. And evaluate, whether it is possible to gain profit based on client’s business plan. 

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    Acceleration in Construction Projects
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    Sunday, December 25, 2016

    Stakeholder of a Construction Project

    December 25, 2016 1
    Stakeholder of a Construction Project


    The "stakeholders" can be recognized as parties those have interest in any specific process.

    In Construction industry, specific processes can be recognized as Different Construction projects. 

    Therefore, stakeholders of the projects are the parties who have interest on the project.
    There are Two types of stakeholders as
    1. Direct stakeholders
    2. Indirect stakeholders 
    Direct Stakeholders
    • Contractor
    • Client
    • Supervision Engineer
    • Design Consultants
    • Investors
    • Sub Contractors
    • Suppliers 

    Indirect Stakeholders
    • Financial Institutes
    • Governmen Authorities
    • General public
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    Friday, December 23, 2016

    Acceleration in Construction Projects

    December 23, 2016 0
    Acceleration in Construction Projects

    Acceleration is the process of increasing the rate of progress of construction work in order to complete the project on an earlier date than it intended to be.

     There are two types of acceleration;

     1. Instructive acceleration 

     Employer instruct the contractor to accelerate  the rate of progress in order to finish it and hand over on a earlier date than date stated in the contract document or when Contractor entitle for extension of time under the contract.

     2. Instructive or Directive acceleration 

     Under this heading, acceleration process is initiated by the Contractor in order to finish the project on time when he lags behind the rate of progress.


    Acceleration of the project can be done in several ways. 

     • Provide additional resources to the project like increase number of work force and machineries involved in the project.

     • Revise the method of construction. For example, carrying out offsite fabrication, using pre cast concrete. Using new mode of form work systems, using tower cranes, batching plants and etc.

     • Revise the project program in order to finish project faster. For example, carrying out many parallel activities at the same time.

     • Increase the working hours and work on shift basis,. As well as work on weekends, public holidays and etc.

     • As well as there might have some specification and design changes which increase the rate of progress.


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    Evaluation of Acceleration claims. 
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