Concrete conformity control according to SK EN 206: 2013 during the construction of the bridge B400 on the “Arbën Xhaferi”

Session

Civil Engineering, Infrastructure and Environment

Description

This material describes the concept of control and conformity assessment of concrete based on the SK EN 206: 2013 standard. Among the basic requirements for concrete is the control and conformity assessment of compressive strength of concrete, as one of the main characteristics of hardened concrete. Given the fact that the control of concrete conformity is a topic that has never been addressed in our country and as a result we do not have the necessary information on the quality level of concrete on which these concrete structures are built, then we decided to further research such a topic. We also note that the conformity assessment of concrete is necessary due to the management of the required quality level and its maintenance at the same level and secondly it is a legal obligation to meet and guarantee the overall quality of the built structure. This study was carried out at the concrete production plant of the company "Bechtel ENKA" during the construction of the bridge at length of: L = 5800 m "as part of the highway ” Arbën Xhaferi “ Since for the realization of the bridge in question, for different elements of the bridge there were different classes of concrete, we mainly used the data of the results of compressive strength in fc, cube for concretes of classes C25/30 and C 30/37. The results obtained for each element of the bridge are presented in tabular form, at the same time using the statistical control cards of the process these data are also presented graphically. It should be noted that the results of the tests taken in the analysis belong to the quality control of concrete for the period 2017-2018.In order to achieve the intended results, parts of this topic are also some chapters which are described as follows: • Conformity control and conformity criteria • Factory production control system • Sampling plan • Analysis of the results reviewed • Discussion of results • Customer risk assessment and supplier risk.

Keywords:

concrete, quality control, compressive strength, statistical analysis, conformity control, customer risk, supplier risk, EN 206

Session Chair

Besa Jagxhiu

Session Co-Chair

Hazir Cadraku

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-437-96-7

Location

Lipjan, Kosovo

Start Date

31-10-2020 10:45 AM

End Date

31-10-2020 12:15 PM

DOI

10.33107/ubt-ic.2020.93

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Oct 31st, 10:45 AM Oct 31st, 12:15 PM

Concrete conformity control according to SK EN 206: 2013 during the construction of the bridge B400 on the “Arbën Xhaferi”

Lipjan, Kosovo

This material describes the concept of control and conformity assessment of concrete based on the SK EN 206: 2013 standard. Among the basic requirements for concrete is the control and conformity assessment of compressive strength of concrete, as one of the main characteristics of hardened concrete. Given the fact that the control of concrete conformity is a topic that has never been addressed in our country and as a result we do not have the necessary information on the quality level of concrete on which these concrete structures are built, then we decided to further research such a topic. We also note that the conformity assessment of concrete is necessary due to the management of the required quality level and its maintenance at the same level and secondly it is a legal obligation to meet and guarantee the overall quality of the built structure. This study was carried out at the concrete production plant of the company "Bechtel ENKA" during the construction of the bridge at length of: L = 5800 m "as part of the highway ” Arbën Xhaferi “ Since for the realization of the bridge in question, for different elements of the bridge there were different classes of concrete, we mainly used the data of the results of compressive strength in fc, cube for concretes of classes C25/30 and C 30/37. The results obtained for each element of the bridge are presented in tabular form, at the same time using the statistical control cards of the process these data are also presented graphically. It should be noted that the results of the tests taken in the analysis belong to the quality control of concrete for the period 2017-2018.In order to achieve the intended results, parts of this topic are also some chapters which are described as follows: • Conformity control and conformity criteria • Factory production control system • Sampling plan • Analysis of the results reviewed • Discussion of results • Customer risk assessment and supplier risk.