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2 Journal of Polish Safety and Reliability Association

2 2012

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The fuzzy method in the compound conformity criteria of concrete strength as quality and safety control

Skrzypczak I.

Journal of Polish Safety and Reliability Association

2012

Vol. 3, No. 2

197--200

Non-random uncertainty character connected with the evaluation and classification of concrete compressive strength, and also faults and disadvantages of statistical compliance criteria, were reasons to formulate a new fuzzy criterion of concrete strength assessment and classification procedure of produced concrete. Membership functions of mean value of compressive strength, included in conformity criteria, have been determined in the contribution on the basis of fuzzy-statistical experiment.

Operating characteristic curves in monitoring of strength in ready-mixed concrete

Bajorek G., Kiernia-Hnat M., Skrzypczak I.

Journal of Polish Safety and Reliability Association

2012

Vol. 3, No. 2

259--262

Statistical conformity criteria for compressive strength of concrete are the matter debate. Statistical criteria can have prejudicial effects to quality and safety of construction. The paper is concerned with the application of operating-characteristic curves to the monitoring of compressive strength in ready-mixed concrete. In this paper the crude Monte Carlo simulation method has been applied to obtain OC-curves for different compound conformity criteria and normal distribution type of concrete strength.