Simulation of expansion in cement based materials subjected to external sulfate attack
نویسندگان
چکیده
منابع مشابه
Simulation of Expansion in Cement Based Materials Subjected to External Sulfate Attack
Sulfate attack in concrete structures is considered to be among the major durability concerns in civil infrastructure systems. Proper modeling techniques can help us understand the influence of aggressive environments on the concrete performance more readily and accurately. Such an understanding improves the decision making process in every stage of construction and maintenance and will help in...
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In this paper, a support vector machine (SVM) model which can be used to predict the compressive strength of mortars exposed to sulfate attack was established. An accelerated corrosion test was applied to collect compressive strength data. For predicting the compressive strength of mortars, a total of 638 data samples obtained from experiment was chosen as a dataset to establish a SVM model. Th...
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Sulfate attack is a series of physico-chemical reactions between hardened cement paste and sulfate ions. Sulfate ion penetration into the hydrated cement results in the formation of voluminous and deleterious phases such as gypsum and ettringite which are believed to cause deterioration and expansion of concrete. Concrete deterioration due to sulfate attack depends on many parameters, however, ...
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Sulphate attack on cement based materials has been widely taken up in research studies focusing on aggressive environmental conditions. Visual observations are considered as an important first step to assess the performance of the materials under the severity of the involved conditions. Correlations of visual observations (supported by other tests, during controlled laboratory experiments) and ...
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ژورنال
عنوان ژورنال: Ain Shams Engineering Journal
سال: 2014
ISSN: 2090-4479
DOI: 10.1016/j.asej.2013.05.002