استخدام مونة السمنت المعززة بألياف الكاربون لمعالجة الأرضيات الخرسانية المعرضة للقلويات

Abstract EN

The main purpose of this research is to repair the concrete floors in contact with alkalis action especially sodium hydroxide (caustic soda) in the floors of factories of Vegetable Oils by using cement and sand mortars incorporated with carbon fiber chips in proportions (0.5 – 1)% by volume was used ,superplasticizer with a dosage of (2 -2.6) L/100 kg cement was added, thickness of cement and sand mortars depend on damage concrete .

Mechanical tests such as compressive strength test and physical tests such as ultrasonic pulse velocity , bulk density , apparent porosity and water absorption tests were done to samples after curing in normal water for ( 7 , 28 , 60 , 90 , 180 ) days and then they were exposed to caustic soda solution (37% concentration) up to six months.

Test results showed a noticeable improvement in durability of suggested mortar mixes against such type of aggressive alkalis solutions.