Characteristics of SCC with Fly Ash and Manufactured Sand

International Conference on Advances in Materials and Manufacturing Applications 2016

Praveen Kumar, K.^1 ; Radhakrishna^1

Department of Civil Engineering, RV College of Engineering, Autonomous Institution Affiliated to VTU, Belagavi Bengaluru, Karnataka

560059, India^1

关键词: Admixture;    Fine aggregates;    Manufactured sand;    Replacement level;    Strength;    Strength characteristics;    Superplasticizers;    Workability;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012111/pdf
DOI  :  10.1088/1757-899X/149/1/012111

来源: IOP

【 摘 要 】

Self compacting concrete (SCC) of M40 grade was designed. The binder in SCC consists of OPC and fly ash in the ratio of 65:35. River sand was replaced by manufactured sand (M-sand) at replacement levels of 20,40,60,80 and 100%. An attempt was made to evaluate the workability and strength characteristics of self compacting concrete with river sand and manufactured sand as fine aggregates. For each replacement level, constant workability was maintained by varying the dosage of superplasticizer. T50 flow time, V Funnel time, V-funnel T5 time as well as compressive, split tensile and flexural strength of SCC were found at each replacement level of M-sand. They were compared to SCC with river sand. Results indicate favourable use of M-sand in preparation of Self Compacting Concrete.