A Mathematical Model for Predicting Autoclave Expansion for Iraqi Portland Cements

المؤلفون

  • Tareq Salih Hadi Al-Attar Building and Construction Engineering Department, University of Technology, Baghdad, Iraq مؤلف

الكلمات المفتاحية:

Autoclave expansion، Fineness، Free CaO، Mathematical modeling، MgO، Portland cement، Statistical analysis، Sulphate

الملخص

The autoclave expansion test (ASTM C151- 05) is one of the internationally used tests in detecting the unsoundness of Portland cements. The factors affecting test results were reviewed. A statistical analysis of 130 autoclave test results was done. Each result represents the average of a month production, for four Iraqi cement factories. Based on that, a mathematical model was built to predict the autoclave expansion for Iraqi Portland cements. The coefficient of determination, R2, was 0.97. The model was tested with new raw data and the predictions were highly correlated to the experimental results (r = 0.92). Moreover, a t-test was carried out and it showed that there is no difference between means of experimental and predicted sets of values. The good predictions give the chance to make use of the model in saving time and money.

التنزيلات

Key Dates

منشور

2014-07-01

إصدار

مجلد 18 عدد 4 (2014): Journal of Engineering and Development

القسم

Articles

الرخصة

Creative Commons License

هذا العمل مرخص بموجب Creative Commons Attribution 4.0 International License.

The Journal of Engineering and Sustainable Development is an open-access journal that all contents are free of charge. Articles of this journal are licensed under the terms of the Creative Commons Attribution International Public License CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/legalcode) that licensees are unrestrictly allowed to search, download, share, distribute, print, or link to the full texts of the articles, crawl them for indexing and reproduce any medium of the articles provided that they give the author(s) proper credits (citation). The journal allows the author(s) to retain the copyright of their published article.
Creative Commons-Attribution (BY)

كيفية الاقتباس

A Mathematical Model for Predicting Autoclave Expansion for Iraqi Portland Cements. (2014). مجلة الهندسة والتنمية المستدامة, 18(4), 214-222. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/850

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