典型文献
Effects of microfine aggregate in manufactured sand on bleeding and plastic shrinkage cracking of concrete
文献摘要：
Construction industries have started to utilize manufactured sand(MS)as an effective alternative for river sand in concrete.High-grade parent rocks are crushed to obtain MS,which also produces a considerable amount of microfine aggregate(MFA).The higher percentage of MFA could lead to both positive and negative effects on the performance of cement-based mixes.This research was done to examine the influence of varying MFA levels,specifically 0％,3％,6％,9％,and 12％(by weight)as the partial replacements of MS on bleeding and plastic shrinkage cracking of concrete.In addition to the varying MFA levels,some concrete mixes also included fly ash(FA)and superplasticizer to investigate the effect of free-water content in the mixes.The bleeding test data were taken as on-site measurements,while the cracks from the plastic shrinkage cracking test were evaluated using an image processing technique.The results concluded that the MFA replacements and the effective water-to-cement ratio have a significant effect on the selected concrete properties.With the increasing replacement levels,cumulative bleeding and crack initiation life gradually decreased,while a progressive increase was observed for crack width,crack length,and crack area.
文献关键词：
中图分类号：
作者姓名：
Branavan ARULMOLY;Chaminda KONTHESINGHA;Anura NANAYAKKARA
作者机构：
Department of Civil Engineering,University of Sri Jayewardenepura,Mount Lavinia 10370,Sri Lanka;Department of Civil Engineering,University of Moratuwa,Moratuwa 10400,Sri Lanka
文献出处：
引用格式：
[1]Branavan ARULMOLY;Chaminda KONTHESINGHA;Anura NANAYAKKARA-.Effects of microfine aggregate in manufactured sand on bleeding and plastic shrinkage cracking of concrete)[J].结构与土木工程前沿,2022(11):1453-1473
A类：
microfine,superplasticizer
B类：
Effects,aggregate,manufactured,sand,bleeding,shrinkage,cracking,concrete,Construction,industries,have,started,utilize,effective,alternative,river,High,grade,parent,rocks,crushed,obtain,which,also,produces,considerable,amount,MFA,higher,percentage,could,lead,both,positive,negative,effects,performance,mixes,This,research,was,done,examine,influence,varying,levels,specifically,by,weight,partial,replacements,In,addition,some,included,fly,ash,investigate,free,water,content,test,data,were,taken,site,measurements,while,cracks,from,evaluated,using,image,processing,technique,results,concluded,that,ratio,significant,selected,properties,With,increasing,cumulative,initiation,life,gradually,decreased,progressive,increase,observed,width,length,area
AB值：
0.513842
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
