Investigation on Impact resistance and Mechanical Properties of self compacting concrete made with Fly ash and GGBS

Author(s): Parasivamurthy Prakash, Veena Jawali, Srishaila Jagalur Mahalingasharma, Vivek Rama Das and Pramod A V
Paper category: Proceedings
Book title: Proceedings of the 2nd International RILEM/COST Conference on Early Age Cracking and Serviceability in Cement-based Materials and Structures Volume 2
Editor(s): Stéphanie Staquet and Dimitrios Aggelis
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 585-590
Total Pages: 6
Language : English

Abstract: Self-Compacting Concrete (SCC) is a high flow concrete that can flow through densely reinforced and complex structural element and compacted under its own weight. Due to issues related to carbon foot print and sustainability in self compacting concrete make use of environmental friendly industrial by product as cement substitutes. The main objective of present experimental study is to evaluate the impact resistance and mechanical properties of self compacting concrete made with fly ash and GGBS. The properties of SCC are verified by conducting test such as slump flow; L-box and V-funnel, T50 test. For SCC mixes the results show that slump flow, L-box ratios are increased and V-funnel flow time, T50 decreased with the increase of flyash replacement level, where as it decreased for increase in GGBS content. The temperature of fresh concrete was also measured and found that increase in fly ash content decreases the temperature compared to GGBS for fresh concrete. The compressive strength was measured at 3, 7, 28, 56 and 90 days whereas flexural strength, split tensile strength, young’s modulus, shear strength, impact resistance was conducted for 28, 56 and 90 days with water curing. The experimental results shows that the compressive strength, young’s modulus, shear strength and impact resistance are marginally increased in 30% replacement of flyash mixes and there is only a marginal strength improvement observed in GGBS mixes after 28 days. With respect to flexural and split tensile strength a marginal increment was observed for fly ash mixes compared with GGBS mixes for all the ages.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00

>> You must be connected to view the paper. You can register for free if you are not a member