Article(id=1319987090109092601, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319987055371858691, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20210736, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1630080000000, receivedDateStr=2021-08-28, revisedDate=1632153600000, revisedDateStr=2021-09-21, acceptedDate=null, acceptedDateStr=null, onlineDate=1792639046455, onlineDateStr=2026-10-22, pubDate=1645286400000, pubDateStr=2022-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792639046455, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792639046455, creator=13701087609, updateTime=1792639046455, updator=13701087609, issue=Issue{id=1319987055371858691, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='2', pageStart='277', pageEnd='554', issueExtLink='null', onlineDate='null', pubDate='1645286400000', pubDateStr='2022-02-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1792639038174, creator='13701087609', updateTime=1792639254308, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319987961958089069, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319987055371858691, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319987961958089070, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319987055371858691, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=403, endPage=412, ext={EN=ArticleExt(id=1319987090323002106, articleId=1319987090109092601, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Acceleration Effect of Chemical Solution Immersion on Calcium Leaching of Cement-Based Materials, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

To quantify a relationship between the accelerated calcium leaching effect and the concentration of nitric acid solution ranging from 0.01 to 0.50 mol/L, leaching experiments and numerical simulation were conducted for cement paste, mortar and concrete specimens at a water-cement ratio of 0.50, and the evolutions of the macro- and micro-leaching indicators were analyzed. The results show that the proportional coefficients in Fick's diffusion law based on leaching depth and cumulative relative leached calcium ion exhibit a linear and negative exponential growth relationship with the concentration of nitric acid solution. The diffraction peak of calcium carbonate at the same depth of each leached paste specimen linearly decreases. The equivalent accelerated diffusion coefficients of cement paste, mortar and concrete are linearly proportional to the concentration of nitric acid solution, and the acceleration ratios are 3.9×103, 1.6×103 and 1.0×103 times of the concentrations (measured in mol/L), respectively. For cement paste with a water-cement ratio of 0.50, acceleration ratios of 6.00 mol/L ammonium nitrate, 0.50 mol/L nitric acid, 6.00 mol/L ammonium chloride and deionized water are 4 507, 2 018, 464 and 47, respectively. The equivalent accelerated diffusion coefficient of cement paste is 2.3 times greater than that of the concrete at the same water-cement ratio. If the concentration of chemical immersion solution is too high, the calcium dissolution-diffusion process will deviate from the dissolution mechanism in fresh water environment. When nitric acid solution is used for an accelerated calcium leaching experiment, an appropriate concentration is 0.10 mol/L.

, authors=Shaowei WANG, Yanyu XIAO, Yingli XU, Pinghua ZHU, Hui LIU, authorsList=Shaowei WANG, Yanyu XIAO, Yingli XU, Pinghua ZHU, Hui LIU, authorCompany=null, correspAuthors=null, authorNote=

WANG Shaowei (1988-), male, Ph. D., Associate Professor. E-mail:

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采用0.01~0.50 mol/L的硝酸溶液,对水灰比0.50的净浆、砂浆和混凝土开展加速溶蚀实验和数值模拟反演分析,从宏、微观角度研究溶蚀评价指标的演变规律,建立加速效应与浸泡液浓度之间的定量关系。结果表明:随着硝酸浸泡液浓度的提高,基于溶蚀深度和钙离子累计相对溶蚀量表征的Fick扩散定律中的比例系数分别呈线性和负指数函数的增长规律,溶蚀区相同深度处的碳酸钙衍射峰线性降低;净浆、砂浆和混凝土的等效加速扩散系数均与硝酸浸泡液浓度呈线性正比关系,加速倍率分别是浸泡液浓度(以mol/L计)的3.9×103、1.6×103和1.0×103倍;6.00 mol/L硝酸铵、0.50 mol/L硝酸、6.00 mol/L氯化铵和去离子水对水灰比0.50的净浆的加速倍率分别为4 507、2 018、464和47,且净浆的等效加速扩散系数是同水灰比混凝土的2.3倍。化学浸泡液浓度过高,将导致溶解-扩散过程明显偏离淡水环境下的溶蚀机理,采用硝酸溶液进行加速溶蚀实验时,浸泡液浓度以0.10 mol/L为最佳。

, authors=王少伟, 肖焰钰, 徐应莉, 朱平华, 刘惠, authorsList=王少伟, 肖焰钰, 徐应莉, 朱平华, 刘惠, authorCompany=null, correspAuthors=null, authorNote=

王少伟(1988—),男,博士,副教授。

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WANG Shaowei (1988-), male, Ph. D., Associate Professor. E-mail:

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王少伟(1988—),男,博士,副教授。

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化学浸泡法对水泥基材料钙溶蚀的加速效应
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王少伟 , 肖焰钰 , 徐应莉 , 朱平华 , 刘惠
硅酸盐学报 | 研究论文 2022,50(2): 403-412
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硅酸盐学报 |研究论文 2022 , 50 (2) : 403 -412
化学浸泡法对水泥基材料钙溶蚀的加速效应
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王少伟 , 肖焰钰, 徐应莉, 朱平华, 刘惠
作者信息
  • 常州大学环境与安全工程学院,江苏 常州 213164
作者简介:

王少伟(1988—),男,博士,副教授。

Acceleration Effect of Chemical Solution Immersion on Calcium Leaching of Cement-Based Materials
Shaowei WANG , Yanyu XIAO, Yingli XU, Pinghua ZHU, Hui LIU
Affiliations
  • School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
  • WANG Shaowei (1988-), male, Ph. D., Associate Professor. E-mail:

出版时间: 2022-02-20 doi: 10.14062/j.issn.0454-5648.20210736
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采用0.01~0.50 mol/L的硝酸溶液,对水灰比0.50的净浆、砂浆和混凝土开展加速溶蚀实验和数值模拟反演分析,从宏、微观角度研究溶蚀评价指标的演变规律,建立加速效应与浸泡液浓度之间的定量关系。结果表明:随着硝酸浸泡液浓度的提高,基于溶蚀深度和钙离子累计相对溶蚀量表征的Fick扩散定律中的比例系数分别呈线性和负指数函数的增长规律,溶蚀区相同深度处的碳酸钙衍射峰线性降低;净浆、砂浆和混凝土的等效加速扩散系数均与硝酸浸泡液浓度呈线性正比关系,加速倍率分别是浸泡液浓度(以mol/L计)的3.9×103、1.6×103和1.0×103倍;6.00 mol/L硝酸铵、0.50 mol/L硝酸、6.00 mol/L氯化铵和去离子水对水灰比0.50的净浆的加速倍率分别为4 507、2 018、464和47,且净浆的等效加速扩散系数是同水灰比混凝土的2.3倍。化学浸泡液浓度过高,将导致溶解-扩散过程明显偏离淡水环境下的溶蚀机理,采用硝酸溶液进行加速溶蚀实验时,浸泡液浓度以0.10 mol/L为最佳。

水泥基材料  /  钙溶蚀  /  化学浸泡法  /  加速效应  /  反演分析

To quantify a relationship between the accelerated calcium leaching effect and the concentration of nitric acid solution ranging from 0.01 to 0.50 mol/L, leaching experiments and numerical simulation were conducted for cement paste, mortar and concrete specimens at a water-cement ratio of 0.50, and the evolutions of the macro- and micro-leaching indicators were analyzed. The results show that the proportional coefficients in Fick's diffusion law based on leaching depth and cumulative relative leached calcium ion exhibit a linear and negative exponential growth relationship with the concentration of nitric acid solution. The diffraction peak of calcium carbonate at the same depth of each leached paste specimen linearly decreases. The equivalent accelerated diffusion coefficients of cement paste, mortar and concrete are linearly proportional to the concentration of nitric acid solution, and the acceleration ratios are 3.9×103, 1.6×103 and 1.0×103 times of the concentrations (measured in mol/L), respectively. For cement paste with a water-cement ratio of 0.50, acceleration ratios of 6.00 mol/L ammonium nitrate, 0.50 mol/L nitric acid, 6.00 mol/L ammonium chloride and deionized water are 4 507, 2 018, 464 and 47, respectively. The equivalent accelerated diffusion coefficient of cement paste is 2.3 times greater than that of the concrete at the same water-cement ratio. If the concentration of chemical immersion solution is too high, the calcium dissolution-diffusion process will deviate from the dissolution mechanism in fresh water environment. When nitric acid solution is used for an accelerated calcium leaching experiment, an appropriate concentration is 0.10 mol/L.

cement-based materials  /  calcium leaching  /  chemical solution immersion method  /  acceleration effect  /  inversion analysis
王少伟, 肖焰钰, 徐应莉, 朱平华, 刘惠. 化学浸泡法对水泥基材料钙溶蚀的加速效应. 硅酸盐学报, 2022 , 50 (2) : 403 -412 . DOI: 10.14062/j.issn.0454-5648.20210736
Shaowei WANG, Yanyu XIAO, Yingli XU, Pinghua ZHU, Hui LIU. Acceleration Effect of Chemical Solution Immersion on Calcium Leaching of Cement-Based Materials[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (2) : 403 -412 . DOI: 10.14062/j.issn.0454-5648.20210736
  • 国家自然科学基金项目(51709021)
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doi: 10.14062/j.issn.0454-5648.20210736
  • 接收时间:2021-08-28
  • 首发时间:2026-10-22
  • 出版时间:2022-02-20
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  • 收稿日期:2021-08-28
  • 修回日期:2021-09-21
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国家自然科学基金项目(51709021)
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    常州大学环境与安全工程学院,江苏 常州 213164
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2种不同金属材料的力学参数
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属
Genus
种数
Number of
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Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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