YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • ASCE
    • Journal of Materials in Civil Engineering
    • View Item
    •   YE&T Library
    • ASCE
    • Journal of Materials in Civil Engineering
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Internal Curing Efficiency of Prewetted LWFAs on Concrete Humidity and Autogenous Shrinkage Development

    Source: Journal of Materials in Civil Engineering:;2014:;Volume ( 026 ):;issue: 005
    Author:
    Ya Wei
    ,
    Yaping Xiang
    ,
    Qianqian Zhang
    DOI: 10.1061/(ASCE)MT.1943-5533.0000883
    Publisher: American Society of Civil Engineers
    Abstract: Internal curing (IC) technology using prewetted lightweight fine aggregates (LWFAs) as additives has been proved an effective means for mitigating both autogenous shrinkage and early-age cracking under the sealed-cured conditions. However, complete elimination of autogenous shrinkage may not be necessary, as negative effects, such as the durability problems, might be induced by an excessive amount of LWFAs introduced. To better utilize internal curing technology for durable concretes, this study investigates the microstructure and the desorption properties of sintered fly ash and expanded shale LWFAs. The influences of these two types of LWFAs on autogenous shrinkage and internal RH development were experimentally evaluated in concrete with w/c of 0.3 and 0.4. The internal curing efficiency, defined as the relative volume ratio of LWFAs in paste matrix as compared to that used for completely mitigating autogenous shrinkage, is a function of particle size and spacing of LWFAs. The results show that 100% internal curing efficiency (no autogenous shrinkage at the age of 28 days) can be achieved if the ratio of the LWFA particle/paste proximity and the particle size (
    • Download: (57.70Mb)
    • Show Full MetaData Hide Full MetaData
    • Get RIS
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Internal Curing Efficiency of Prewetted LWFAs on Concrete Humidity and Autogenous Shrinkage Development

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/67282
    Collections
    • Journal of Materials in Civil Engineering

    Show full item record

    contributor authorYa Wei
    contributor authorYaping Xiang
    contributor authorQianqian Zhang
    date accessioned2017-05-08T21:57:00Z
    date available2017-05-08T21:57:00Z
    date copyrightMay 2014
    date issued2014
    identifier other%28asce%29mt%2E1943-5533%2E0000925.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/67282
    description abstractInternal curing (IC) technology using prewetted lightweight fine aggregates (LWFAs) as additives has been proved an effective means for mitigating both autogenous shrinkage and early-age cracking under the sealed-cured conditions. However, complete elimination of autogenous shrinkage may not be necessary, as negative effects, such as the durability problems, might be induced by an excessive amount of LWFAs introduced. To better utilize internal curing technology for durable concretes, this study investigates the microstructure and the desorption properties of sintered fly ash and expanded shale LWFAs. The influences of these two types of LWFAs on autogenous shrinkage and internal RH development were experimentally evaluated in concrete with w/c of 0.3 and 0.4. The internal curing efficiency, defined as the relative volume ratio of LWFAs in paste matrix as compared to that used for completely mitigating autogenous shrinkage, is a function of particle size and spacing of LWFAs. The results show that 100% internal curing efficiency (no autogenous shrinkage at the age of 28 days) can be achieved if the ratio of the LWFA particle/paste proximity and the particle size (
    publisherAmerican Society of Civil Engineers
    titleInternal Curing Efficiency of Prewetted LWFAs on Concrete Humidity and Autogenous Shrinkage Development
    typeJournal Paper
    journal volume26
    journal issue5
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0000883
    treeJournal of Materials in Civil Engineering:;2014:;Volume ( 026 ):;issue: 005
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian