University of GuilanConcrete Research2008-424215220220622Experimental study to evaluate comperessive strength relation with related time for concrete having cement type II and crumb rubberExperimental study to evaluate comperessive strength relation with related time for concrete having cement type II and crumb rubber2131569510.22124/jcr.2022.20656.1515FASeyyed MeysamHasan VanhariMS.c Student in Structural Engineering, Faculty of Civil Engineering, Semnan University, Semnan, Iran.MajidGholhakisemnan universityJournal Article20211223Relationship between the compressive strength of concrete in terms of the age of concrete is set out in the American Concrete Institute Regulations for Type I and Type III Cement. In this study, the relationship between compressive strength in terms of the age of concrete containing Portland Cement Type II has been experimentally investigated. The relationship has also been explored for crumb rubberized concrete. For this purpose, three cement contents: 350, 400 and 450 kg / m³, as well as two water-to-cement ratios of 0.5 and 0.65, and crumb rubber with ratios of 5 to 20% by the Volume of sand have been used. In the relations obtained, α and β values for the ordinary concretes containing cement type II are 3.13 and 0.91, respectively, while for the crumb rubberized concrete are 3.32 and 0.9, respectively. In this study, the relationship between compressive strength in terms of the age of concrete containing Portland Cement Type II has been experimentally investigated. The relationship has also been explored for crumb rubberized concrete. For this purpose, three cement contents: 350, 400 and 450 kg / m³, as well as two water-to-cement ratios of 0.5 and 0.65, and crumb rubber with ratios of 5 to 20% by the Volume of sand have been used. In the relations obtained, α and β values for the ordinary concretes containing cement type II are 3.13 and 0.91, respectively, while for the crumb rubberized concrete are 3.32 and 0.9, respectively.Relationship between the compressive strength of concrete in terms of the age of concrete is set out in the American Concrete Institute Regulations for Type I and Type III Cement. In this study, the relationship between compressive strength in terms of the age of concrete containing Portland Cement Type II has been experimentally investigated. The relationship has also been explored for crumb rubberized concrete. For this purpose, three cement contents: 350, 400 and 450 kg / m³, as well as two water-to-cement ratios of 0.5 and 0.65, and crumb rubber with ratios of 5 to 20% by the Volume of sand have been used. In the relations obtained, α and β values for the ordinary concretes containing cement type II are 3.13 and 0.91, respectively, while for the crumb rubberized concrete are 3.32 and 0.9, respectively. In this study, the relationship between compressive strength in terms of the age of concrete containing Portland Cement Type II has been experimentally investigated. The relationship has also been explored for crumb rubberized concrete. For this purpose, three cement contents: 350, 400 and 450 kg / m³, as well as two water-to-cement ratios of 0.5 and 0.65, and crumb rubber with ratios of 5 to 20% by the Volume of sand have been used. In the relations obtained, α and β values for the ordinary concretes containing cement type II are 3.13 and 0.91, respectively, while for the crumb rubberized concrete are 3.32 and 0.9, respectively.https://jcr.guilan.ac.ir/article_5695_e680179d98be7bef52d6e3146baa054e.pdf