The Cumulative Sum (CUSUM) System for Quality Control of Ready- Mixed Concrete: Fundamentals and Application
Publish place: 2nd International Conference on Seismic retrofitting
Publish Year: 1388
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICSR02_181
تاریخ نمایه سازی: 22 اردیبهشت 1398
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, generatedwith 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 ready-mixed concrete is controlled by the cusum system. To simplify the controlling system, transparent V-mask designed and used to identify the small change in the production system
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Authors
SOBHANI
Building and Housing Research Centre, Department of Concrete Technology Bonyad Boton-e Iran Co. Ltd.
PARHIZKAR
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.