Tracing carbonation in cementitious slurry using anthocyanin extracted from fresh or stale petals

Abstract

Anthocyanins extracted from flowers were prepared to trace carbonation in cementitious materials. For condition where a broad partial carbonated zone is presented, the new-developed indicator is more competitive over phenolphthalein.

Recent Advances in the Nutritional Value, Chemical Compositions, Pharmacological Activity, and Application Value of Orychophragmus violaceus: A Comprehensive Review

“…Toshio Honda et al [ 65 ] extracted three acylated cyanidin 3-sambubioside-5-glucosides (Orychophragonus violet-blue anthocyanins, OVAs) from the petals of O. violaceus , cyanidin3-[2-(2-(4-(6-(4-glucosylcaffeoyl)-glucosyl)-caffeoyl)-xylosyl)-6-(4-glucosyl-p-coumaroyl)gIucoside]-5-gjucoside,cyanidin3-[2-(2-(4-(6-(4-glucosylcaffeoyl)-glucosyl)-caffeoyl)-xylosyl)-6-(4-glucosyl-feruloyl)glucoside]-5-glucoside and cyanidin3-[2-(2-(4-(6-(4-glucosylcaffeoyl)-glucosyI)-caffeoyl)-xylosyl)-6-(4-glucosyl-sinapoyl)glucoside]-5-(6-malonylglucoside). A study [ 66 ] demonstrated that anthocyanins derived from the petals of O. violaceus have the potential to serve as an alternative to phenolphthalein in monitoring the carbonation process in cement paste and evaluating the long-term strength and resilience of concrete.…”

“…Steroids have been reported for O. violaceus, see Figure 7 and Table 12. A study [66] demonstrated that anthocyanins derived from the petals of O. violaceus have the potential to serve as an alternative to phenolphthalein in monitoring the carbonation process in cement paste and evaluating the long-term strength and resilience of concrete.…”