WebAug 31, 2024 · The carbonation degree is approximately 50% where the pH of concrete is 9.2, which is the boundary value detected using the phenolphthalein indicator . However, carbonation also occurs in area having 9.2 < pH < 11.5 where the carbonation degree is less than 50%, resulting in differences between the carbonation depths obtained via numerical ... WebApr 7, 2024 · Phenolphthalein is a colourless and weak acid that is commonly used to signify the endpoint of the titration as an indicator in titration experiments. As this …
Hydrochloric acid heat reaction method to measure cement contents …
WebThe use of phenolphthalein indicator solution has also been recommended for lime content control testing. The solution can be used to distinguish between areas that have been properly treated and those that have received only a … WebSep 15, 2024 · Phenolphthalein is the most common pH indicator used to measure the carbonation depth of cementitious materials. It is simple and quick to use, but according … brother install utility
Carbonation of concrete - Understanding Cement
WebFeb 10, 2024 · Phenolphthalein is an organic compound that serves as a laboratory reagent and pH indicator. It stimulates the intestinal mucosa and constricts smooth muscles, causing laxative effects. The fact that phenolphthalein may be carcinogenic, however, has led to its discontinuation as a laxative. A few drops of the appropriate indicator added to … WebJan 19, 2024 · Phenolphthalein is a common pH indicator that is colorless under acidic conditions and fuchsia pink under alkaline conditions. Phenolphthalein indicator is a pH … http://civmin.utoronto.ca/wp-content/uploads/2024/05/31.pdf cargo ship manual