Characteristic assessment of self-compacting concrete with supplementary cementitious materials: Fid-Bau Portal

Characteristic assessment of self-compacting concrete with supplementary cementitious materials

Karthik, D. / Nirmalkumar, K. / Priyadharshini, R.

Highlights • The industrial by-products (fly ash and silica fume) as SCMs are utilized in SCC. • The SCC behaviors with SCMs were assessed as per EFNARC-2005. • Major mechanical and durability properties were studied. • Entire benefits and drawback of SCMs in SCC were investigated.

Abstract This experimental study is paying attention to the fresh, mechanical, and durability performance of the self-compacting concrete containing fly ash and silica fume. Sixteen different sets of ternary blended self-compacting concrete of M30 grade are prepared as per Indian (IS: 10262-2019) [21] and European (EFNARC - 2005) [14] standards. To investigate the fresh properties (filling ability, flow ability, and segregation resistance), tests such as V- funnel test, V- funnel T5 minutes test, L- box test, slump flow test, and T500 mm slump flow time test were conducted. The compressive strength test, splitting tensile strength test, flexural strength test, and modulus of elasticity test were conducted to assess the mechanical properties of the SCC. Water absorption test, porosity, alkalinity test, acid resistance test, sulphate resistance test, salt-water resistance test and rapid chloride permeability test (RCPT) were conducted to evaluate the durability properties of the SCC. The results indicated that the fresh characteristics of ternary blended self-compacting concrete were gradually decreased when SCMs (fly ash and silica fume) replacement increases. The mechanical characteristics of ternary blended SCC were greater than that of the NSCC up to a certain limit of replacement. The durability properties of SCC were enhanced when replaced with SCMs.