{"title":"用纳米二氧化硅生产的水泥砂浆的凝结时间、抗压强度和光子衰减特性","authors":"Namık Yaltay","doi":"10.53433/yyufbed.1329695","DOIUrl":null,"url":null,"abstract":"In this study, initial and final setting time, compressive strength and photon attenuation properties of cement mortar samples produced with 0.5%, 1%, 2%, and 4% nanoscale SiO2 addition were investigated. For this purpose, cement mortar samples were prepared and cured for 1, 2, 7, 28, and 90 days. Increases in compressive strength values were observed in the early curing ages, with a slight decrease of 3,17% and 0,33% for low nano SiO2 rates (0.5% and 1%) in later ages. In addition, these results were evaluated with Scanning Electron Microscope (SEM) images. In the samples added 4% nano-SiO2, there was a 13.3% and 9.09% reduction in the initial and final setting times, respectively. Furthermore, mass attenuation coefficients were compared for different cure ages.","PeriodicalId":386555,"journal":{"name":"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Setting Time, Compressive Strength and Photon Attenuation Properties of Cement Mortars Produced with Nano-SiO2\",\"authors\":\"Namık Yaltay\",\"doi\":\"10.53433/yyufbed.1329695\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this study, initial and final setting time, compressive strength and photon attenuation properties of cement mortar samples produced with 0.5%, 1%, 2%, and 4% nanoscale SiO2 addition were investigated. For this purpose, cement mortar samples were prepared and cured for 1, 2, 7, 28, and 90 days. Increases in compressive strength values were observed in the early curing ages, with a slight decrease of 3,17% and 0,33% for low nano SiO2 rates (0.5% and 1%) in later ages. In addition, these results were evaluated with Scanning Electron Microscope (SEM) images. In the samples added 4% nano-SiO2, there was a 13.3% and 9.09% reduction in the initial and final setting times, respectively. Furthermore, mass attenuation coefficients were compared for different cure ages.\",\"PeriodicalId\":386555,\"journal\":{\"name\":\"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-09-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.53433/yyufbed.1329695\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Yüzüncü Yıl Üniversitesi Fen Bilimleri Enstitüsü Dergisi","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.53433/yyufbed.1329695","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Setting Time, Compressive Strength and Photon Attenuation Properties of Cement Mortars Produced with Nano-SiO2
In this study, initial and final setting time, compressive strength and photon attenuation properties of cement mortar samples produced with 0.5%, 1%, 2%, and 4% nanoscale SiO2 addition were investigated. For this purpose, cement mortar samples were prepared and cured for 1, 2, 7, 28, and 90 days. Increases in compressive strength values were observed in the early curing ages, with a slight decrease of 3,17% and 0,33% for low nano SiO2 rates (0.5% and 1%) in later ages. In addition, these results were evaluated with Scanning Electron Microscope (SEM) images. In the samples added 4% nano-SiO2, there was a 13.3% and 9.09% reduction in the initial and final setting times, respectively. Furthermore, mass attenuation coefficients were compared for different cure ages.