Article(id=1319236455323517272, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236433387303232, articleNumber=null, orderNo=null, doi=10.14062/j.issn.0454-5648.20211188, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1640880000000, receivedDateStr=2021-12-31, revisedDate=1650816000000, revisedDateStr=2022-04-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1792460081176, onlineDateStr=2026-10-20, pubDate=1660924800000, pubDateStr=2022-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792460081176, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792460081176, creator=13701087609, updateTime=1792460081176, updator=13701087609, issue=Issue{id=1319236433387303232, tenantId=1146029695717560320, journalId=1263187385517883426, year='2022', volume='50', issue='8', pageStart='2067', pageEnd='2350', issueExtLink='null', onlineDate='null', pubDate='1660924800000', pubDateStr='2022-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792460075946, creator='13701087609', updateTime=1792460621958, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1319238723569569958, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236433387303232, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1319238723569569959, tenantId=1146029695717560320, journalId=1263187385517883426, issueId=1319236433387303232, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=2212, endPage=2220, ext={EN=ArticleExt(id=1319236455533232473, articleId=1319236455323517272, tenantId=1146029695717560320, journalId=1263187385517883426, language=EN, title=Properties of Alkali Activated Mortar Fresh and Hardened Properties Based on Fiber Reinforced Index, columnId=1263922769897599102, journalTitle=Journal of the Chinese Ceramic Society, columnName=Research Articles, runingTitle=null, highlight=null, articleAbstract=

In order to explore the mechanism of action of fiber in alkali-activated materials, 26 groups of fiber reinforced alkali-activated mortar (FRAAM) were prepared at different length to diameter ratios, volume contents of polypropylene fiber (PPF) and water-binder ratios. The influence of fiber reinforced index (I) on the slump spread, flow rate, apparent density, ultrasonic wave velocity, compressive strength, bending strength, and crack fractal dimension of FRAAM was investigated. The results show that the effect of water-binder ratio on the plastic viscosity of FRAAM is more dominant than that on the yield stress. When I is less than critical I (Ic, i.e., 100), the influence of fibers is slight, the distance between fibers is far, and the workability of FRAAM is basically not affected. However, fibers are difficult to limit the cracking of mortar and improve its mechanical properties. When I is between Ic (i.e., 100) and dense I (Id, i.e., 350), the flexural strength, compressive strength and fracture fractal dimension of FRAAM improve, and the FRAAM can still flow freely under dead weight. When I is higher than Id (i.e., 350), significant fibrous clumps degrade the FRAAM workability, resulting in a poor compactness and a reduced compressive strength. The I thresholds of PPF-FRAAM are 100 and 350 for loose and tight packing, respectively, and the optimal volume fraction of PPF is between 100/(l/d) and 350/(l/d).

, authors=Li LI1, 2, 3, Yujie WEI2, Zongli LI1, 2, Wensheng ZHANG3, Di SHI3, Dingqian LI2, authorsList=Li LI, Yujie WEI, Zongli LI, Wensheng ZHANG, Di SHI, Dingqian LI, authorCompany=null, correspAuthors=Zongli LI, authorNote=

LI Li (1986-), male, Ph.D., Associate Professor. E-mail:

, correspAuthorsNote=
LI Zongli (1967-), male, Ph.D., Professor. E-mail:
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为探究纤维在碱激发材料中的作用机制,采用2种不同长径比、6个不同体积掺量的聚丙烯纤维(PPF)、2种水胶比制备共计26组纤维增强碱激发砂浆(FRAAM),研究纤维增强指数(I)对FRAAM工作性、密实度、强度、裂缝分形维数的影响。结果表明:纤维和水胶比对FRAAM塑性黏度的影响比对屈服应力的影响更加显著。当I小于临界I(Ic)=100时,纤维的影响可以忽略,纤维间的距离较远,FRAAM的工作性基本不受影响,但此时纤维也难以阻裂增韧,PPF对碱激发砂浆和水泥砂浆的增韧作用差异不大。当I介于Ic=100和致密I(Id)=350之间时,FRAAM的抗折强度、抗压强度、折压比及裂缝分形维数均得到显著提高,PPF对碱激发砂浆的增韧作用开始优于水泥砂浆,且FRAAM仍可自由流动。当I大于Id=350时,显著的纤维结团会极大劣化FRAAM的工作性,硬化后FRAAM密实度变差,抗压强度降低。PPF-FRAAM在松散堆积状态和紧密堆积状态下的I阈值分别为100和350,PPF的最优体积掺量在100/(长径比,l/d)~350/(l/d)之间。

, authors=李黎1, 2, 3, 委玉杰2, 李宗利1, 2, 张文生3, 史迪3, 李定乾2, authorsList=李黎, 委玉杰, 李宗利, 张文生, 史迪, 李定乾, authorCompany=null, correspAuthors=李宗利, authorNote=

李黎(1986—),男,博士,副教授。

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李宗利(1967—),男,博士,教授。
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基于纤维增强指数的碱激发砂浆物理力学性能
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李黎 1, 2, 3 , 委玉杰 2 , 李宗利 1, 2 , 张文生 3 , 史迪 3 , 李定乾 2
硅酸盐学报 | 研究论文 2022,50(8): 2212-2220
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硅酸盐学报 |研究论文 2022 , 50 (8) : 2212 -2220
基于纤维增强指数的碱激发砂浆物理力学性能
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李黎1, 2, 3 , 委玉杰2, 李宗利1, 2 , 张文生3, 史迪3, 李定乾2
作者信息
  • 1.西北农林科技大学旱区农业水土工程教育部重点实验室,陕西 咸阳 712100
  • 2.西北农林科技大学水利与建筑工程学院,陕西 咸阳 712100
  • 3.绿色建筑材料国家重点实验室,北京 100024
通讯作者:
李宗利(1967—),男,博士,教授。
作者简介:

李黎(1986—),男,博士,副教授。

Properties of Alkali Activated Mortar Fresh and Hardened Properties Based on Fiber Reinforced Index
Li LI1, 2, 3 , Yujie WEI2, Zongli LI1, 2 , Wensheng ZHANG3, Di SHI3, Dingqian LI2
Affiliations
  • 1.Key Laboratory of Agricultural Soil and Water Engineering in Arid and Semiarid Areas of Ministry of Education, Northwest A & F University, Xianyang 712100, Shaanxi, China
  • 2.College of Water Resources and Architectural Engineering, Northwest A & F University, Xianyang 712100, Shaanxi, China
  • 3.State Key Laboratory of Green Building Materials, Beijing 100024, China
  • Corresponding Author:
    LI Zongli (1967-), male, Ph.D., Professor. E-mail:

    LI Li (1986-), male, Ph.D., Associate Professor. E-mail:

出版时间: 2022-08-20 doi: 10.14062/j.issn.0454-5648.20211188
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为探究纤维在碱激发材料中的作用机制,采用2种不同长径比、6个不同体积掺量的聚丙烯纤维(PPF)、2种水胶比制备共计26组纤维增强碱激发砂浆(FRAAM),研究纤维增强指数(I)对FRAAM工作性、密实度、强度、裂缝分形维数的影响。结果表明:纤维和水胶比对FRAAM塑性黏度的影响比对屈服应力的影响更加显著。当I小于临界I(Ic)=100时,纤维的影响可以忽略,纤维间的距离较远,FRAAM的工作性基本不受影响,但此时纤维也难以阻裂增韧,PPF对碱激发砂浆和水泥砂浆的增韧作用差异不大。当I介于Ic=100和致密I(Id)=350之间时,FRAAM的抗折强度、抗压强度、折压比及裂缝分形维数均得到显著提高,PPF对碱激发砂浆的增韧作用开始优于水泥砂浆,且FRAAM仍可自由流动。当I大于Id=350时,显著的纤维结团会极大劣化FRAAM的工作性,硬化后FRAAM密实度变差,抗压强度降低。PPF-FRAAM在松散堆积状态和紧密堆积状态下的I阈值分别为100和350,PPF的最优体积掺量在100/(长径比,l/d)~350/(l/d)之间。

碱激发材料  /  纤维混凝土  /  纤维增强指数  /  力学性能  /  分形维数

In order to explore the mechanism of action of fiber in alkali-activated materials, 26 groups of fiber reinforced alkali-activated mortar (FRAAM) were prepared at different length to diameter ratios, volume contents of polypropylene fiber (PPF) and water-binder ratios. The influence of fiber reinforced index (I) on the slump spread, flow rate, apparent density, ultrasonic wave velocity, compressive strength, bending strength, and crack fractal dimension of FRAAM was investigated. The results show that the effect of water-binder ratio on the plastic viscosity of FRAAM is more dominant than that on the yield stress. When I is less than critical I (Ic, i.e., 100), the influence of fibers is slight, the distance between fibers is far, and the workability of FRAAM is basically not affected. However, fibers are difficult to limit the cracking of mortar and improve its mechanical properties. When I is between Ic (i.e., 100) and dense I (Id, i.e., 350), the flexural strength, compressive strength and fracture fractal dimension of FRAAM improve, and the FRAAM can still flow freely under dead weight. When I is higher than Id (i.e., 350), significant fibrous clumps degrade the FRAAM workability, resulting in a poor compactness and a reduced compressive strength. The I thresholds of PPF-FRAAM are 100 and 350 for loose and tight packing, respectively, and the optimal volume fraction of PPF is between 100/(l/d) and 350/(l/d).

alkali-activated material  /  fiber reinforced concrete  /  fiber reinforcing index  /  mechanical properties  /  fractal dimension
李黎, 委玉杰, 李宗利, 张文生, 史迪, 李定乾. 基于纤维增强指数的碱激发砂浆物理力学性能. 硅酸盐学报, 2022 , 50 (8) : 2212 -2220 . DOI: 10.14062/j.issn.0454-5648.20211188
Li LI, Yujie WEI, Zongli LI, Wensheng ZHANG, Di SHI, Dingqian LI. Properties of Alkali Activated Mortar Fresh and Hardened Properties Based on Fiber Reinforced Index[J]. Journal of the Chinese Ceramic Society, 2022 , 50 (8) : 2212 -2220 . DOI: 10.14062/j.issn.0454-5648.20211188
  • 国家自然科学基金(52109168)
  • 陕西省自然科学基础研究计划项目(2021JQ-174)
  • 绿色建筑材料国家重点实验室开放基金(2020GBM10)
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2022年第50卷第8期
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doi: 10.14062/j.issn.0454-5648.20211188
  • 接收时间:2021-12-31
  • 首发时间:2026-10-20
  • 出版时间:2022-08-20
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  • 收稿日期:2021-12-31
  • 修回日期:2022-04-25
基金
国家自然科学基金(52109168)
陕西省自然科学基础研究计划项目(2021JQ-174)
绿色建筑材料国家重点实验室开放基金(2020GBM10)
作者信息
    1.西北农林科技大学旱区农业水土工程教育部重点实验室,陕西 咸阳 712100
    2.西北农林科技大学水利与建筑工程学院,陕西 咸阳 712100
    3.绿色建筑材料国家重点实验室,北京 100024

通讯作者:

李宗利(1967—),男,博士,教授。
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https://castjournals.cast.org.cn/joweb/gsyxb/CN/10.14062/j.issn.0454-5648.20211188
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
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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