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the purpose of this research was to concentrate on this subject, where four types of concrete mixes of the same shape were prepared (Abrams settlement about 20 cm), but the cement content and compression strength in each mixture were different, al l samples were exposed to destructive acid effect (nitric acid, sulphuric acid ) of a ratio 3% and PH ≤ 4.
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هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا