Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Determination of Asbestos–Cement Pipe Deterioration Rate Using Accelerated Acid Degradation
Deterioration of asbestos–cement (AC) water pipes was assessed using accelerated acid exposure experiments coupled with measurements of physical and mechanical properties. The experiments were conducted in three phases using a strong acid (nitric acid) at concentrations ranging from 0.00158 to 3.16 M. The AC pipe deterioration was determined using phenolphthalein staining and the measurement of calcium and magnesium. Results from the experiment indicate that a linear rate of deterioration with time is the most appropriate for estimating the rate of deterioration in the field and for estimating the remaining service life of the AC pipe. In addition, the use of high‐concentration acids to understand the strength loss of AC pipes in the field was evaluated by comparing the crushing and hydrostatic capacity of a full‐scale acid‐degraded specimen and a naturally degraded specimen. Similar loss of crushing and hydrostatic capacity with increasing deterioration was observed between the acid‐degraded and naturally degraded specimen.
Determination of Asbestos–Cement Pipe Deterioration Rate Using Accelerated Acid Degradation
Deterioration of asbestos–cement (AC) water pipes was assessed using accelerated acid exposure experiments coupled with measurements of physical and mechanical properties. The experiments were conducted in three phases using a strong acid (nitric acid) at concentrations ranging from 0.00158 to 3.16 M. The AC pipe deterioration was determined using phenolphthalein staining and the measurement of calcium and magnesium. Results from the experiment indicate that a linear rate of deterioration with time is the most appropriate for estimating the rate of deterioration in the field and for estimating the remaining service life of the AC pipe. In addition, the use of high‐concentration acids to understand the strength loss of AC pipes in the field was evaluated by comparing the crushing and hydrostatic capacity of a full‐scale acid‐degraded specimen and a naturally degraded specimen. Similar loss of crushing and hydrostatic capacity with increasing deterioration was observed between the acid‐degraded and naturally degraded specimen.
Determination of Asbestos–Cement Pipe Deterioration Rate Using Accelerated Acid Degradation
Ghirmay, Abiy M. (Autor:in) / Wood, Clinton M. (Autor:in)
Journal ‐ American Water Works Association ; 110 ; E27-E38
01.06.2018
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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