建筑垃圾和纖維聯(lián)合改性膨脹土路用性能研究

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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

應(yīng)用較少；土壤改良技術(shù)應(yīng)用較為廣泛，常采用機(jī)械加固、化學(xué)改性，或兩種技術(shù)的有機(jī)結(jié)合[3-4]。（剩余4964字）