Influence of Mineral Admixture on Stress Strain Behaviour of Self Compacting Concrete under Elevated Temperature

Godwin, I. Antony; Anand, N.; Arulraj, G. Prince; Aravindhan, C.

doi:10.17485/ijst/2016/v9i6/87702

Cited by 2 publications

(2 citation statements)

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“…The strength resistance is due to the highly dense structure of FA and mineral pozzolan in the concrete, which results in less concrete decomposition. The chemical reaction inside the concrete structure between sulphuric and nitric acids is shown in Equations ( 4)- (6).…”

Section: Sulphate and Chloride Attack Testmentioning

confidence: 99%

“…The conventional method for achieving an appropriate flow capacity limits the coarse filler particles and increases the fine filler particles. Low yield stress and viscosity are the key parameters to consider when optimising the workability of SCC to avoid aggregate separation during flow [6,7]. The physical characteristics must be investigated first, followed by the mechanical and durability characteristics.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Rheological and Durability Performance of Sustainable Self-Compacting Concrete

et al. 2023

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Self-Compacting Concrete (SCC) is a special concrete that can flow easily across congested reinforcements. Also, it is easy to work with and does not segregate. The present investigation aims at the design and development of sustainable SCC with the employment of industrial by-products such as Fly Ash (FA), Ground Granulated Blast Furnace Slag (GGBFS), and Expanded Perlite Aggregate (EPA). Four SCC mixes were developed to attain a target strength of 30 MPa. Workability tests (slump flow, J-ring, and V-funnel tests) were performed following the EFNARC guidelines to ensure fresh SCC properties. Detailed experiments were conducted to evaluate the durability characteristics of the developed SCC, such as water absorption, sorptivity, acid attacks (sulphuric, nitric, sulphate, and chloride), the Rapid Chloride Penetration Test (RCPT), and finally, the elevated temperature test. Weight loss, strength loss, and physical observations of the acid and temperature effects of SCC mixes were evaluated. Also, the study focuses on the cost and sustainable index of SCC mixes and compares them with OPC mixes. From the experimental data analysis, it was observed that the developed SCC showed excellent physical and mechanical properties with a considerable reduction in cement content. SCC specimens with FA and EPA exhibit excellent acid and temperature resistance. Following the sustainable analysis, it was noted that SCC mixes reduce about 15–17.2% of carbon emissions compared to the OPC mix.

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Section: Sulphate and Chloride Attack Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%