Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Acid resistance of polyester-impregnated modified cement mortar
The influence of distilled water and sulphuric acid solutions on the physico-mechanical properties of neat and modified cement mortar has been investigated. The samples were immersed in distilled water, and different concentrations of sulphuric acid ranged from 5 to 15 % by volume for immersion times from 1 to 120 days. The effect on the loss of weight, compressive strength, apparent porosity, water absorption, infrared, and scanning electron microscopy were studied. The compressive strength and loss of weight decrease, whereas the apparent porosity and water absorption increase with immersion time and acid concentration. These are probably due to partial dissolution of the set cement. Infrared spectra and electron microscopic studies showed significant changes in some absorption bands and the appearances of new voids of the neat and composite mortars after being immersed in H2SO4 solutions.
Acid resistance of polyester-impregnated modified cement mortar
The influence of distilled water and sulphuric acid solutions on the physico-mechanical properties of neat and modified cement mortar has been investigated. The samples were immersed in distilled water, and different concentrations of sulphuric acid ranged from 5 to 15 % by volume for immersion times from 1 to 120 days. The effect on the loss of weight, compressive strength, apparent porosity, water absorption, infrared, and scanning electron microscopy were studied. The compressive strength and loss of weight decrease, whereas the apparent porosity and water absorption increase with immersion time and acid concentration. These are probably due to partial dissolution of the set cement. Infrared spectra and electron microscopic studies showed significant changes in some absorption bands and the appearances of new voids of the neat and composite mortars after being immersed in H2SO4 solutions.
Acid resistance of polyester-impregnated modified cement mortar
Säurebeständigkeit von mit Polyester imprägniertem modifiziertem Zementmörtel
Ismail, M.R. (Autor:in) / Ali, M.A.M. (Autor:in) / El-Miligy, A.A. (Autor:in) / Afifi, M.S. (Autor:in)
Journal of Applied Polymer Science ; 73 ; 685-693
1999
9 Seiten, 13 Bilder, 14 Quellen
Aufsatz (Zeitschrift)
Englisch
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