- 鄧宗才,丁建明
2020年1期 ? No.285 ? P47-50
摘要
引用本文
摘要:提出了一種有助于纖維分散的攪拌工序,給出了一種測量纖維分散性的簡易方法,分析了不同纖維摻量(5kg/m3、10kg/m3、15kg/m3)對玄武巖纖維混凝土(BFRC)的纖維分散性、基本力學性能及彎曲韌性的影響。結果表明,攪拌工序可使纖維在基體中均勻分散,亦可降低纖維在攪拌過程中的損傷;隨纖維摻量的增加,BFRC力學性能先提高后降低,其對BFRC彎曲韌性試驗中的峰值強度、殘余強度及彎曲韌性值的影響規律亦是如此;BFRC的力學性能及彎曲韌性在纖維摻量為10kg/m3時最佳。?Abstract:?Astirringprocesswhichhelpsthefiberdisperseandasimplemeasurementmethodoffiberdispersionwereproposed,andtheinfluenceofdifferentfibercontent(5kg/m3,10kg/m3,15kg/m3)onthefiberdispersibility,basicmechanicalpropertiesandflexuraltoughnessofbasaltfiberreinforcedconcrete(BFRC)wereanalysed.Theresultsshowthatthestirringprocesscanevenlydispersethefibersinthematrix,andreducethedamageofthefibersduringthestirringprocess.Withtheincreaseoffibercontent,themechanicalpropertiesofBFRCincreasefirstandthendecrease,whichistrueforitsinfluenceonthepeakstrength,residualstrengthandflexuraltoughnessvalueinBFRCflexuraltoughnesstest.ThemechanicalpropertiesandflexuraltoughnessofBFRCarebestwhenthefibercontentis10kg/m3.
鄧宗才,丁建明.BFRC中玄武巖纖維分散性與彎曲韌性試驗研究[J].混凝土與水泥制品,2020(1):47-50.
DENG Z C,DING J M.Experimental Study on the Dispersibility and Flexural Toughness of Basalt Fibers in BFRC [J].China Concrete and Cement Products,2020(1):47-50.
DENG Z C,DING J M.Experimental Study on the Dispersibility and Flexural Toughness of Basalt Fibers in BFRC [J].China Concrete and Cement Products,2020(1):47-50.