鎳渣改性橡膠水泥砂漿性能試驗(yàn)研究

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中圖分類號：TU528 文獻(xiàn)標(biāo)志碼：A 文章編號：1005-8249（2025）02-0037-07

DOI： 10.19860/j.cnki.issn1005-8249.2025.02.007

Abstract：Theefectsof nickel slagonthemechanicalproperties，durability，andmicroscopicpropertiesofrubberparticle cement mortarwasstudiedbyartificial aceleratedaging，nano-indentation，RCMandother testing methods.Theresults showedthattheadditionofnickel slagandacceleratedagingcanimprove thecompressvestrength，flexural strength， compressionbendingratio，anddynamic elastic modulus of rubbercement mortar，andaceleratedaging hasasignificant mpact onthe dynamic elastic modulusof high rubbercontentcementmortar；Nickelslagcan improve the wearresistanceof rubber cement mortar. When the volume fraction of nickel slag is 5 % and the volume fraction of rubber is 1 5 % ，the length of the grindingpit is minimized；Nickelslagimprovesthelasticmodulusandhardnessofthemicro interfaceareaofrubbercement mortar，enhancingthe micro mechanical propertiesof theinterfacearea；Nickelslag hasagoodrestrainingefectontheearlydryingshrinkageofrubbercementmortar，andalsohelpstoimprovetheresistanceofcementmortartochlorideionpenetration. When the volume fraction of nickel slag is 1 5 % and the volume fraction of rubber particles is 5 % ，the chloride ion diffusion coefficient of cement mortar is the smallest.

Key words：nickel slag；modification；rubber cement mortar；nano-indentation；artificial accelerated aging

0 引言

鎳渣是電爐工藝生產(chǎn)鎳合金時(shí)產(chǎn)生的固廢，其主要成分為 、 M g O 、 等，綜合利用率不高。（剩余7558字）