Prediction of scaling resistance of concrete modified with high-calcium fly ash using classification methods. Proceedings of the 1st conference for the utilization of industrial by. Therefore, it is not possible to describe all of the effects of the nonstandard fly ashes, including HCFA, on concrete performance when exposed to various environmental factors with only one efficiency coefficient. The cells are supplied with PRB gaskets, unless otherwise specified. Chloride migration coefficient from non-steady-state migration experiments. Based on the measured initial current, the test voltage and test duration are selected accordingly.
Product list chloride penetration resistance
Investigation of the rapid chloride permeability test. The aim of this study is to generate rules using a machine learning algorithm to evaluate the chloride resistance of concrete modified with high calcium fly ash. The following gaskets are available for different specimen diameters:. For each specimen a test cell is necessary. The random selection repeated many times can be treated as the basis of a statistical technique called cross-validation. The resources of high calcium fly ash are large, it is produced as a by-product of power generation in brown coal burning plants.
In both cases, the CfsSubsetEvaluator , provided by Weka, was used to assess the predictive ability of each attribute individually and the degree of redundancy among them, preferring sets of attributes that are highly correlated with the class, but have low inter-correlation. The decision tree for resistance to chloride penetration generated by the J48 algorithm. Morgan Kaufmann Series in Machine Learning. Neural network prediction of unconfined compressive strength of coal fly ash-cement mixtures. Following standard EN
The physical properties of ash before and after grinding are given in Table 2 [ 19 ]. Test results can be exported to Excel for comprehensive statistical analyses of the results and preparing user defined control charts. Multiple methods for rule generation were applied and compared. The PR verification unit is used to verify that the microprocessor controlled power supply is working properly. Center for Environmental Excellence. Durability of steel reinforced concrete in chloride environments: The relevant material characteristics can be extracted from an experimental dataset using various artificial intelligence methods, developed for the last two decades for various engineering applications [ 9 , 10 ].