Sawdust ash as powder material for self-compacting concrete containing naphthalene sulfonate

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Abstract

Tests are carried out to determine the fluidity of Ashaka Portland cement paste and its compatibility with sawdust ash (SDA) as powder material for self-compacting cement (SCC) mixtures. Results of the investigation showed that saturation was achieved at w/c ratios of 0.4 and 0.42, at dosages of naphthalene sulfonate superplasticizers of 3.5% and 2%, respectively. The optimum replacement level for the SCC mixture was 10 wt.% of cement by SDA and 2% of the superplasticizer dosage. The achieved spread and flow time were 26 cm and 8 seconds and are within the specified range of 24 cm to 26 cm and 7 to 11 seconds, respectively. Statistical inference showed that the mix, w/c, and the interaction between the mix and w/c ratio are significant. © 2014 Augustine U. Elinwa and Ahmed M. Mamuda.

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Elinwa, A. U., & Mamuda, A. M. (2014). Sawdust ash as powder material for self-compacting concrete containing naphthalene sulfonate. Advances in Civil Engineering, 2014. https://doi.org/10.1155/2014/129276

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