建筑垃圾和纤维联合改性膨胀土路用性能研究

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ZHENG Hewu

（Guangxi Baima Airport Expressway Co.，Ltd.，Nanning 53OO28，China）

Abstract：Toimprovetheoadpeformanceofexpansivesoilandraleteresourceutlizationofonstructionwaste，thispaperstudies thestrengthandexpansioncharacteristicsofexpansivesoilimprovedbyglassfiberandconstructionaste，andexplrestheiprovement mechanismcombinedwiththemiroscopiccharacteristics.Itisfoundthatbothconstructionwasteandglassfbercansignificantlyiproe thestrengthofexpansivesoilandreducetheswellingandhrinkagecharacteristicsofxpansivesoil.Thehghontentofcostruction wasteandglasfiberwillcusetheintealporesofteimprovedexpansivesoiltobeuabletofllefectivelyandthfiberclumping phenomenon，whichwillecttheoadperfomanceoftheimprovedexpansivesoilTeoptialontentofonstructiowasteandglass fiber is 40% and 0.6% respectively.The microscopic test results show that fiber can provideadhesion points for expansive soil，thus enhancingtheintealstructureofexpansivesoil.Theaboveresearchesultscanprovideatheoreticalbasisfortheimprovementof expansive soil and the resource utilization of construction waste.

Keywords：expansivesoil；costructionwaste；glassfber；strengthharcteritics；expansioandshinkagecharacteristis；mcosrcture

0 引言

应用较少；土壤改良技术应用较为广泛，常采用机械加固、化学改性，或两种技术的有机结合[3-4]。（剩余4964字）