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The Cumulative Sum (CUSUM) System for Quality Control of Ready- Mixed Concrete: Fundamentals and Application

Publish place: 1st International Conference on Concrete Technology
Publish Year: 1388
Type: Conference paper
Language: English
View: 2,537

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Link to this Paper:
https://civilica.com/doc/76659

Document National Code:

ICCT01_171

Index date: 10 September 2009

The Cumulative Sum (CUSUM) System for Quality Control of Ready- Mixed Concrete: Fundamentals and Application abstract

In this paper, cumulative sum (cusum) system is presented for quality control and monitoring of ready-mixed concrete plants. Two examples are presented to investigate the application of this method. In the first example, the production of ready-mixed concrete is simulated with data intentionally varied mean and standard deviations, generated with normal distributions. These generated data, as concrete compressive strength, is monitored with pair of cumulative sums where the first is for detecting mean increases (SHi) and the second is for detecting mean decreases (SLi). In the second example, the teal data from a ready-mixed concrete is controlled by the cusum system. To simplify the controlling system, a transparent V-mask designed and used to identify the small change in the production system.

The Cumulative Sum (CUSUM) System for Quality Control of Ready- Mixed Concrete: Fundamentals and Application Keywords:

Ready-Mixed Concrete , Quality Control , Quality Monitoring , CUSUM

The Cumulative Sum (CUSUM) System for Quality Control of Ready- Mixed Concrete: Fundamentals and Application authors

J Sobhani

Building and Housing Research Centre, Department of Concrete Technology Bonyad Boton-e Iran Co. Ltd.

A.R Pourkhorshidi

Building and Housing Research Centre, Department of Concrete Technology Bonyad Boton-e Iran Co. Ltd.

M Najimi

Building and Housing Research Centre, Department of Concrete Technology Bonyad Boton-e Iran Co. Ltd.

M.M Kalantari

Building and Housing Research Centre, Department of Concrete Technology Bonyad Boton-e Iran Co. Ltd.

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