Regulating the performance of NaOH-activated slag using vitamin B3, B6, and C as bio-admixtures: a comparison study

IF 3.4 3区工程技术 Q2 CONSTRUCTION & BUILDING TECHNOLOGY

Materials and Structures Pub Date : 2025-04-17 DOI:10.1617/s11527-025-02642-9

Zeren Chen, Peiyuan Chen, Shangkun Li, Lei Wang, Xianggeng Wang, Weibo Tan, Yonghui Wang, Jialai Wang

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引用次数: 0

Abstract

This study proposes the use of commonly existing natural compounds, Vitamin B3 (VB3), vitamin B6 (VB6), and vitamin C (VC), as bio-admixtures to regulate the performance of alkali-activated slag (AAS). The experimental results suggested that VB3, VB6, and VC could act as retardants to prolong the setting time, plasticizers to improve the fluidity, strength enhancers to increase the compressive strength, and shrinkage reducers to reduce the autogenous shrinkage of AAS. Among them, VC exhibited the highest efficiency as a performance enhancer than VB3 and VB6 with the same dosage. Specifically, the addition of 0.3% VC extended the setting time by 223%, increased the fluidity to 18.65%, and enhanced the 28-day compressive strength by 13.7%, while reducing the 28-day autogenous shrinkage by 45.2%, compared with the blank mixture. Furthermore, by comparing the molecular structures of VB3, VB6, and VC, the mechanisms of various vitamins in influencing the performance of AAS were analyzed and revealed.Journal instruction requires a city and country for affiliations; however, city is missing in affiliation 1. Please verify if the provided city is correct and amend if necessary.The Huainan in affiliation 1 is the institutional city, and the cities in all affiliations are correct.

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维生素B3、B6和C作为生物外加剂调节naoh活性渣性能的比较研究

本研究提出利用常见的天然化合物维生素B3 （VB3）、维生素B6 （VB6）和维生素C （VC）作为生物外加剂调节碱活性渣（AAS）的性能。实验结果表明，VB3、VB6和VC可作为缓凝剂延长凝结时间，可作为增塑剂改善流动性，可作为强度增强剂提高抗压强度，可作为缩水剂降低AAS的自缩水率。其中，在相同剂量下，VC的性能增强效果优于VB3和VB6。其中，与空白混合料相比，添加0.3% VC可使凝结时间延长223%，流动性提高至18.65%，28天抗压强度提高13.7%，28天自收缩率降低45.2%。此外，通过比较VB3、VB6和VC的分子结构，分析并揭示了各种维生素影响原子吸收光谱性能的机理。期刊教学要求所属城市和国家；然而，城市在从属关系中是缺失的。请核实所提供的城市是否正确，如有需要，请修改。隶属关系1中的淮南为机构城市，各隶属关系中的城市均正确。

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来源期刊

Materials and Structures 工程技术-材料科学：综合

CiteScore

6.40

自引率

7.90%

发文量

222

审稿时长

5.9 months

期刊介绍： Materials and Structures, the flagship publication of the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM), provides a unique international and interdisciplinary forum for new research findings on the performance of construction materials. A leader in cutting-edge research, the journal is dedicated to the publication of high quality papers examining the fundamental properties of building materials, their characterization and processing techniques, modeling, standardization of test methods, and the application of research results in building and civil engineering. Materials and Structures also publishes comprehensive reports prepared by the RILEM’s technical committees.