A Review paper on the Effect of different types of coarse aggregate on Concrete

14th International Conference on Concrete Engineering and Technology

Kalra, Megha^1 ; Mehmood, Gauhar^2

Jamia Millia Islamia, New Delhi and Assistant Professor, NorthCap University, Gurugram, India^1

Jamia Millia Islamia, New Delhi, India^2

关键词: Coarse aggregates;    Elasticity moduli;    High strength concretes;    Interfacial bond strength;    Properties of concretes;    Strength of coarse aggregate;    Strength of concrete;    Water-cement ratio;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/431/8/082001/pdf
DOI  :  10.1088/1757-899X/431/8/082001

来源: IOP

【 摘 要 】

The strength of concrete mix is dependent on many parameters like cement type, coarse aggregate and the interface between aggregate and mortar. However, generally the coarse aggregate is treated as an inert material and only its physical properties like shape, size, water absorption and specific gravity are studied. Whereas, as we increase the quality of mortar mix, the strength of coarse aggregate also comes into picture. In case of high performance concrete, the type of coarse aggregate used has a great influence on the strength and elasticity modulus of concrete. For high strength concrete with compressive strength above 40 MPa, which are generally cast with water-cement ratio less than or equal to 0.4, the strength of mortar and the interfacial bond strength may be comparable to the strength of aggregate. This paper presents a comprehensive review of the past research work done on the effect of using different types of coarse aggregate on various properties of concrete mix like its compressive strength, tensile strength and elasticity modulus.