Evidence map›Paper›PMID 36431516›Full record

ArticleMaterials (Basel, Switzerland)2022

Investigation of the Neutralizing Behaviors of Cement-Based Materials Using a New pH Indicator Formulated from February Orchid Petals.

Dong Cui, Xiaohan Shi, Wenya Liu, Keren Zheng, Guangji Yin, Jing Wang, Guantong Han, Yi Wan, Junsong Wang, Wenting Li

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Materials (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Dong CuiSchool of Science, Nanjing University of Science and Technology, Nanjing 210094, China.ORCID 0000-0002-9636-2537
Xiaohan ShiSchool of Science, Nanjing University of Science and Technology, Nanjing 210094, China.
Wenya LiuSchool of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
Keren ZhengDepartment of Civil Engineering, Central South University, Changsha 410075, China.
Guangji YinSchool of Civil and Transportation Engineering, Ningbo University of Technology, Ningbo 315211, China.
Jing WangSchool of Science, Nanjing University of Science and Technology, Nanjing 210094, China.
Guantong HanSchool of Science, Nanjing University of Science and Technology, Nanjing 210094, China.
Yi WanSchool of Science, Nanjing University of Science and Technology, Nanjing 210094, China.
Junsong WangSchool of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.ORCID 0000-0002-8935-4969
Wenting LiKey Laboratory of Advanced Civil Engineering Materials, Ministry of Education, Tongji University, Shanghai 201804, China.

Funding

Fundamental Research Fund for the Central Universities 30920021146Jiangsu Province Science Foundation BK20200481National Natural Science Foundation of China 52008210, 12004182, 51878481Undergraduate Scientific Research Training Program from Nanjing University of Science and Technology S202110288024Zhejiang Provincial Natural Science Foundation of China LQ21E080008
6 · The paper itself

Abstract

Investigation of the neutralizing behavior of concrete is essential, as it can help reveal the durability properties of concrete structures. In this paper, anthocyanin extracted from February orchid (F. orchid) petals was used to characterize the neutralized (carbonated, leached, and sulfate-attacked) regions of cement-based materials. The durability of F. orchid indicator was evaluated through comparison between discoloring behaviors of fresh and aged F. orchid indicators, and the capability of the new indicator in neutralization characterization was then verified by combining indicator (phenolphthalein, malachite green, indigo carmine, or thymolphthalein) spray, X-ray computed tomography (CT), and the X-ray attenuation method (XRAM). The result in the present study showed that, with a lower color intensity as compared to phenolphthalein/thymolphthalein, F. orchid indicator was less preferable in studying carbonation but a better choice in characterizing leaching and sulfate attack of cement-based materials. In addition, a sharp carbonation front was revealed in the present study, suggesting that the carbonation process in this study was controlled mainly by diffusion. For leaching and sulfate attack, the broader fronts revealed suggested that both processes were co-controlled by diffusion and reaction. The current work serves as a 'leap' toward the application of natural pigments in analyzing the durability of concrete structures.

Indexed as

carbonationcement-based materialsFebruary orchidleachingneutralizationpH indicatorsulfate attack

Identifiers

PMID36431516
PMCPMC9699292

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.