What is PD CEN/TR 16369 - Control charts in the production of concrete about?
PD CEN/TR 16369 is a technical report that reviews various control systems that are currently used in the concrete industry and, by the use of examples, shows how the principles are applied to control the production of concrete.
PD CEN/TR 16369 provides information and examples of the use of method C in Clause 8 of prEN 206:2012.
Who is PD CEN/TR 16369 - Control charts in the production of concrete for?
PD CEN/TR 16369 on control charts of concrete is useful for:
- Manufacturers of concrete
- Cement and concrete industry
- Ready-mixed plants
- Precast factories
- Quality control and testing bodies
- Civil engineers
- Contractors
Why should you use PD CEN/TR 16369 - Control charts in the production of concrete?
It is safe to assume that ever since manufacturing commenced, attempts have been made to control the process in order to improve quality and drive down costs. Control charts have found widespread use in the concrete industry in both ready-mixed concrete and precast concrete sectors as a tool for quality control. Control charts can be applied to monitor a range of product
characteristics (e.g., cube/cylinder strength, consistence, w/c ratio), constituent materials (aggregate grading, cement strengths, etc.) or production (batching accuracy).
Their most common application of control charts is as a means of continuously assessing compressive strength results in order to:
- Check whether target strengths are being achieved
- Measure the variations from target (all products vary)
- Identify magnitude of any variation
- Objectively define action required (e.g. change w/c ratio) to get the process back on target
- Identify periods and concretes where the strength was less than specified so that investigations can be
- Carried out and corrective action taken
In this regard, PD CEN/TR 16369 covers guidance on the statistics for concrete, simple data charts, Shewhart charts, CUSUM control systems and multivariable and multigrade analysis of concrete.
PD CEN/TR 16369 provides guidance on control systems and conformity rules for the compressive strength of concrete.
Overall, PD CEN/TR 16369-compliant control charts provide information about the process and all the information available to the concrete producer that can be used to make informed decisions and take appropriate actions.