Quality assurance during execution

During the execution of a building project, different checks are carried out. These types of checks are the following:

• Visual Control (Chapter 4.1.2.1.)

• Inspection Lists (Chapter 4.1.2.2.)

• Recording a major completed building component (Chapter 4.1.2.3.)

• Fault detected during work (Chapter 4.1.2.4.)

4.1.2.1. Visual Control

Firstly, there is the visual control through the construction drawings, where the 2D printed construction drawing is taken to the construction site to be checked for errors. This is done by checking the reality on the construction site compared to the construction drawing. This inspection is illustrated in Figure 9 and is mentioned as ‘Visual Control’. Two scenarios can occur when checking the construction drawing: either no error is found, or an error is found.

Errors are noticed when there is a difference between the construction drawing and what has been made. And if an error is found, it is determined whether the error has a minor or major impact on the construction project. In the case of a minor impact, the person responsible is addressed verbally and the person responsible resolves the problem identified. If the error

Page 56 of 282 has a major impact, the person responsible is contacted to solve the error. After checking the construction drawing, a photo is taken. Some of the supervisors also use the digital function in Ed Controls to take a photo with the iPad if something is not right and link it to the construction drawing. This is not illustrated in the figure below but is shown in Figure 12.

Figure 9 – Visual Control (Current QA)

4.1.2.2. Inspection Lists

Secondly, there is the control by means of inspection lists, which process is shown below in Figure 10. When a building component is ready for inspection, the work planner contacts the site manager to inform him that a building component can be checked for inspection. The site manager then uses the paper inspection list and takes it to the building site to be completed.

The completed checklist is then added to the VGM Map. When an error is found during the completion of the inspection, this error is discussed in the UT-meeting with the work planner and the project manager and will be solved. The abbreviation UT stands for execution team

Page 57 of 282 and includes the project manager, foreman, and site manager involved in the construction project. This UT consultation is recorded in the consultation records.

Furthermore, in some cases, the site manager fills in the printed checklist and takes a picture of the completed checklist, and some site managers then place this picture in Ed Controls, so that it can be viewed in the office.

In general, the checklists provided by the business office are not used. Inspections are carried out, but these are generally not recorded. This is due to the fact that it is seen as a time-consuming activity with no added value. The UT consultation meeting takes place every 4 weeks and the completed inspection lists are printed out and discussed to see if everything complies. Any deviations from the inspection list are only recorded in the report of the implementation team meeting if they have been discussed.

Figure 10 – Inspection Lists (Current QA)

4.1.2.3. Recording a major completed building

Thirdly, when an important building, based on experience, is completed, a picture is taken with the phone. The site manager uploads the photos in Ed Controls in some cases. And after uploading there is the possibility to send an e-mail to the person concerned. The site manager must be at the construction office to be able to send a picture, because of the necessary

Page 58 of 282 internet connection. Some other site managers who do import the inspection lists in Ed Controls, e-mail a picture of the checklist to the office, where it is then recorded in the administration on their own computer. Which is a very laborious process, involving many steps, with different software and equipment.

Figure 11 – Recording a major completed building (Current QA)

4.1.2.4. Fault detected during work

Fourthly, if a defect is found during the construction process, this is recorded on the construction site. This process is illustrated in Figure 12. When a problem is detected, it is determined whether it has a minor or major impact on the construction project. If the impact is minor, the person responsible for solving the problem is contacted verbally and the person responsible solves the problem. When the problem has a large impact, the work planner is contacted by phone or e-mail to solve the problem.

When a problem is identified, in 70 to 80% of cases it is communicated and resolved verbally and not recorded. When it is recorded, it is done by taking a picture and linking it to the floor plan in Ed Controls with a comment when everything is ready, not when there is a deviation.

The parts that are photographed are based on what the person considers important. When a supervisor encounters a problem and doesn't know what it is, he calls the planner. The planner has no influence on the quality assurance of the construction process. Furthermore, changes that are made in relation to the drawings are generally not recorded.

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Figure 12 – Fault detected during work (Current QA)