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    Analysis and Optimization of Tensile Strength for Loess Stabilized by Calcium Carbide Residue

    Source: Journal of Materials in Civil Engineering:;2023:;Volume ( 035 ):;issue: 008::page 04023262-1
    Author:
    Yi Pei
    ,
    Zhan Ding
    ,
    Peilong Li
    ,
    Xuan Xie
    DOI: 10.1061/JMCEE7.MTENG-15484
    Publisher: ASCE
    Abstract: Calcium carbide residue (CCR) can be reutilized to solidify the loess for road construction as a base or subbase due to its rich Ca(OH)2 facilitating pozzolanic reaction with water and soil particles. This study examines the effect of curing time, CCR contents, and dry unit weights on the tensile strength (Rt) of CCR-stabilized loess through the splitting tensile test. Aiming to predict the Rt values, the ratio of porosity (n) controlled by compacted effort and initial volumetric CCR content (Liv), namely n/Liv, was chosen as a prediction parameter and then modified to n/Liv0.064 for compatible variation rate with Rt values. A prediction model for the splitting tensile strength of CCR-treated soil was proposed considering the modified ratio n/Liv0.064 and curing days. The results indicate that Rt values showed a nearly linear positive correlation with CCR contents and dry unit weights, logarithmic increase with the extension of curing time, but no apparent relationship with the ratio n/Liv. The modified ratio n/Liv0.064 can reflect the trend of Rt values at different curing days since the coefficients of determination were almost greater than 0.90 except for the specimens cured for seven days. The proposed prediction model had a good fit for laboratory data with 97% acceptability and close to 3% error. It can be applied for estimating the Rt values of CCR-stabilized loess using curing time and an optimized ratio of porosity and initial volumetric CCR content. From the aspect of practical engineering, the reutilization of CCR can reduce construction costs, waste disposal costs, and environmental pollution.
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      Analysis and Optimization of Tensile Strength for Loess Stabilized by Calcium Carbide Residue

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4293836
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    contributor authorYi Pei
    contributor authorZhan Ding
    contributor authorPeilong Li
    contributor authorXuan Xie
    date accessioned2023-11-27T23:46:46Z
    date available2023-11-27T23:46:46Z
    date issued5/31/2023 12:00:00 AM
    date issued2023-05-31
    identifier otherJMCEE7.MTENG-15484.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4293836
    description abstractCalcium carbide residue (CCR) can be reutilized to solidify the loess for road construction as a base or subbase due to its rich Ca(OH)2 facilitating pozzolanic reaction with water and soil particles. This study examines the effect of curing time, CCR contents, and dry unit weights on the tensile strength (Rt) of CCR-stabilized loess through the splitting tensile test. Aiming to predict the Rt values, the ratio of porosity (n) controlled by compacted effort and initial volumetric CCR content (Liv), namely n/Liv, was chosen as a prediction parameter and then modified to n/Liv0.064 for compatible variation rate with Rt values. A prediction model for the splitting tensile strength of CCR-treated soil was proposed considering the modified ratio n/Liv0.064 and curing days. The results indicate that Rt values showed a nearly linear positive correlation with CCR contents and dry unit weights, logarithmic increase with the extension of curing time, but no apparent relationship with the ratio n/Liv. The modified ratio n/Liv0.064 can reflect the trend of Rt values at different curing days since the coefficients of determination were almost greater than 0.90 except for the specimens cured for seven days. The proposed prediction model had a good fit for laboratory data with 97% acceptability and close to 3% error. It can be applied for estimating the Rt values of CCR-stabilized loess using curing time and an optimized ratio of porosity and initial volumetric CCR content. From the aspect of practical engineering, the reutilization of CCR can reduce construction costs, waste disposal costs, and environmental pollution.
    publisherASCE
    titleAnalysis and Optimization of Tensile Strength for Loess Stabilized by Calcium Carbide Residue
    typeJournal Article
    journal volume35
    journal issue8
    journal titleJournal of Materials in Civil Engineering
    identifier doi10.1061/JMCEE7.MTENG-15484
    journal fristpage04023262-1
    journal lastpage04023262-9
    page9
    treeJournal of Materials in Civil Engineering:;2023:;Volume ( 035 ):;issue: 008
    contenttypeFulltext
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