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    Production of a New Base Material for Load-Bearing Water-Storing Road

    Source: Journal of Materials in Civil Engineering:;2022:;Volume ( 034 ):;issue: 007::page 04022144
    Author:
    Rongchuan Cao
    ,
    Zheng Fang
    ,
    Yu Shang
    DOI: 10.1061/(ASCE)MT.1943-5533.0004294
    Publisher: ASCE
    Abstract: In this work, a porous road base material was studied for a load-bearing water-storing road. According to the performance analysis, asphalt and ordinary portland cement did not work well on the load-bearing water-storing road as base binder materials. Therefore, a metakaolin-based (MK) geopolymer was used to produce a concrete composed of geopolymer and open-graded aggregate (CGOA) as a new road base material to replace traditional cement-treated aggregate. The geopolymer gel adhesive ability, geopolymer surface cracks and internal pores, CGOA water stability, CGOA water storage rate, and CGOA unconfined compressive strength (UCS) were indicators to get the optimal formulation and production process. Mixing open-graded aggregates with a geopolymer gel [Si/Al mole ratio (MR) of 2, Al/Na MR of 0.85–1.00, and H2O/Na2O MR of 14–16], and then membrane curing for more than 60 h at 20°C could produce the desired CGOA. It was designed to make it possible for the road to act as a superior reservoir while bearing traffic loads to reduce waterlogging in urban areas.
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      Production of a New Base Material for Load-Bearing Water-Storing Road

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4286506
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    contributor authorRongchuan Cao
    contributor authorZheng Fang
    contributor authorYu Shang
    date accessioned2022-08-18T12:22:14Z
    date available2022-08-18T12:22:14Z
    date issued2022/04/25
    identifier other%28ASCE%29MT.1943-5533.0004294.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4286506
    description abstractIn this work, a porous road base material was studied for a load-bearing water-storing road. According to the performance analysis, asphalt and ordinary portland cement did not work well on the load-bearing water-storing road as base binder materials. Therefore, a metakaolin-based (MK) geopolymer was used to produce a concrete composed of geopolymer and open-graded aggregate (CGOA) as a new road base material to replace traditional cement-treated aggregate. The geopolymer gel adhesive ability, geopolymer surface cracks and internal pores, CGOA water stability, CGOA water storage rate, and CGOA unconfined compressive strength (UCS) were indicators to get the optimal formulation and production process. Mixing open-graded aggregates with a geopolymer gel [Si/Al mole ratio (MR) of 2, Al/Na MR of 0.85–1.00, and H2O/Na2O MR of 14–16], and then membrane curing for more than 60 h at 20°C could produce the desired CGOA. It was designed to make it possible for the road to act as a superior reservoir while bearing traffic loads to reduce waterlogging in urban areas.
    publisherASCE
    titleProduction of a New Base Material for Load-Bearing Water-Storing Road
    typeJournal Article
    journal volume34
    journal issue7
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/(ASCE)MT.1943-5533.0004294
    journal fristpage04022144
    journal lastpage04022144-9
    page9
    treeJournal of Materials in Civil Engineering:;2022:;Volume ( 034 ):;issue: 007
    contenttypeFulltext
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