{"title":"再生混凝土骨料对透水混凝土强度和耐久性的影响","authors":"Mudasir Nazeer, Kanish Kapoor, S.P. Singh","doi":"10.1680/jmacr.23.00089","DOIUrl":null,"url":null,"abstract":"The present investigation has been designed to assess the performance of pervious concrete prepared with Fly Ash (FA) and Recycled Concrete Aggregates (RCA) in place of Portland Cement (PC) and Natural Aggregates (NA). The percentage of NA replacement with RCA was in the proportion of 0%, 50%, and 100%, while the percentage of FA substitution was fixed at 10%. Various fresh (workability and consistency), mechanical (compressive strength, split tensile, and shear strength), durability (abrasion resistance, freeze thaw, flexure, and acid resistance), and microstructural (SEM and EDS) properties of pervious concrete have been evaluated at different curing periods. The findings reveal that the incorporation of RCA at different levels and partial substitution of FA proves to be desirable for the use of pervious concrete for structural and pavement construction purposes. Furthermore, incorporation of 10% FA in addition to higher levels of RCA proves significantly beneficial in refining the microstructural behaviour of pervious concrete. A homogenous micrograph with dense and layered C-S-H and C-H with was observed for mix made with 10% FA and 100% RCA.","PeriodicalId":18113,"journal":{"name":"Magazine of Concrete Research","volume":"35 1","pages":"0"},"PeriodicalIF":1.8000,"publicationDate":"2023-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Impact of recycled concrete aggregates on the strength and durability properties of pervious concrete\",\"authors\":\"Mudasir Nazeer, Kanish Kapoor, S.P. Singh\",\"doi\":\"10.1680/jmacr.23.00089\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The present investigation has been designed to assess the performance of pervious concrete prepared with Fly Ash (FA) and Recycled Concrete Aggregates (RCA) in place of Portland Cement (PC) and Natural Aggregates (NA). The percentage of NA replacement with RCA was in the proportion of 0%, 50%, and 100%, while the percentage of FA substitution was fixed at 10%. Various fresh (workability and consistency), mechanical (compressive strength, split tensile, and shear strength), durability (abrasion resistance, freeze thaw, flexure, and acid resistance), and microstructural (SEM and EDS) properties of pervious concrete have been evaluated at different curing periods. The findings reveal that the incorporation of RCA at different levels and partial substitution of FA proves to be desirable for the use of pervious concrete for structural and pavement construction purposes. Furthermore, incorporation of 10% FA in addition to higher levels of RCA proves significantly beneficial in refining the microstructural behaviour of pervious concrete. A homogenous micrograph with dense and layered C-S-H and C-H with was observed for mix made with 10% FA and 100% RCA.\",\"PeriodicalId\":18113,\"journal\":{\"name\":\"Magazine of Concrete Research\",\"volume\":\"35 1\",\"pages\":\"0\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2023-10-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Magazine of Concrete Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1680/jmacr.23.00089\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CONSTRUCTION & BUILDING TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Magazine of Concrete Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1680/jmacr.23.00089","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CONSTRUCTION & BUILDING TECHNOLOGY","Score":null,"Total":0}
Impact of recycled concrete aggregates on the strength and durability properties of pervious concrete
The present investigation has been designed to assess the performance of pervious concrete prepared with Fly Ash (FA) and Recycled Concrete Aggregates (RCA) in place of Portland Cement (PC) and Natural Aggregates (NA). The percentage of NA replacement with RCA was in the proportion of 0%, 50%, and 100%, while the percentage of FA substitution was fixed at 10%. Various fresh (workability and consistency), mechanical (compressive strength, split tensile, and shear strength), durability (abrasion resistance, freeze thaw, flexure, and acid resistance), and microstructural (SEM and EDS) properties of pervious concrete have been evaluated at different curing periods. The findings reveal that the incorporation of RCA at different levels and partial substitution of FA proves to be desirable for the use of pervious concrete for structural and pavement construction purposes. Furthermore, incorporation of 10% FA in addition to higher levels of RCA proves significantly beneficial in refining the microstructural behaviour of pervious concrete. A homogenous micrograph with dense and layered C-S-H and C-H with was observed for mix made with 10% FA and 100% RCA.
期刊介绍：
For concrete and other cementitious derivatives to be developed further, we need to understand the use of alternative hydraulically active materials used in combination with plain Portland Cement, sustainability and durability issues. Both fundamental and best practice issues need to be addressed.
Magazine of Concrete Research covers every aspect of concrete manufacture and behaviour from performance and evaluation of constituent materials to mix design, testing, durability, structural analysis and composite construction.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
