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Workability (slump) of fly ash based geopolymer concrete with different content of alccofines from 0% to 10% ( FA-Fly ash, AF-Alccofine)

Workability (slump) of fly ash based geopolymer concrete with different content of alccofines from 0% to 10% ( FA-Fly ash, AF-Alccofine)

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Geopolymer concrete is environmentally friendly and could be considered as a construction material to promote the sustainable development. In this paper fly ash based geopolymer concretes with different percentages of alccofine were made by mixing sodium hydroxide and sodium silicate as an alkaline activator and cured at ambient as well as heat env...

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... of GPC mixes was studied using slump cone test and is presented in Fig. 1. The fresh geopolymer concrete mixes were observed highly harsh and particularly in the case of GPC with unprocessed fly ash which produced slump less concrete. Workability of fresh geopolymer mix was significantly improved by using 2% Naphthalene Sulphonate based superplasticizer. It was observed that the workability of geopolymer ...
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... mixture prepared with unprocessed fly ash results into slump less concrete i.e., the slump obtained was zero. Fig. 1 shows that GPC mix made with processed type of fly ash provides a measurable slump value which gets improved significantly on increasing the fly ash content. The small increment in slump value was observed from 20 mm to 55 mm on increasing fly ash content from 350 kg/m 3 to 400 kg/m 3 ...
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... concrete mix containing alccofine results into good workable concrete showing a significant increase in workability on increasing the alccofine content as shown in Fig. 1. A collapse slump was observed with 10% alccofine content due to its microfine structure with fineness more than 12000 cm 2 /gm ( Patel et al. 2014). Further, the slump was comparable for the mix with 10% alccofine with minimum fly ash content to that of maximum fly ash content without ...
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... that alccofine has higher fineness and is rich in alumina content. Therefore, the hydration is more effective in the presence of rich silica material as fly ash and rich alumina material alccofine. Moreover ultra-high fineness of alccofine subsequently may have plugged the microspores enhancing the compressive strength of geopolymer concrete. Fig. 1 shows X-ray diffraction curves for geopolymer concrete with and without alccofine. The same figure also shows the curves for alccofine and fly ash. A comparison which immediately clarifies that polymerization has transformed amorphous material into crystal material and more significantly in the presence of alccofine. The intensity of ...

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... The interaction effects among Alccofine, alkaline solution, and copper slag create synergistic benefits for strength development, When Alccofine (40%) combines with optimal Na₂SiO₃/NaOH ratio (2.5) and copper slag (30%). Alccofine enhances geopolymerization through improved particle packing and reactive silica availability [26]. This interaction copper slag with alkaline activators facilitates better dissolution of aluminosilicates and formation of stronger geopolymer networks [59]. ...
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The primary aim of this research is to conduct a comprehensive comparative experimental and statistical study on the flexural strength of a novel ternary blended high-performance M30 grade concrete incorporating 20% Alcofine in comparison to traditional concrete.The components employed in the experimental investigation of high-performance M30 concrete incorporating Alcofine, in contrast to conventional concrete, comprise cement, fine aggregate, coarse aggregate, water, Alcofine, and additional cementitious materials like fly ash and silica fume. The Flexural Strength of high-performance M30 concrete containing Alcofine significantly influences the performance of concrete structures, rendering it a critical mechanical property for examination in the comparative analysis. The mean flexural strength of the Conventional Concrete group measured 8.1111 N/mm^2, with a standard deviation of 0.75840 and a standard error of the mean of 0.17876. In contrast, the Ternary Blended Concrete group exhibited a higher mean flexural strength of 12.5000 N/mm^2, coupled with a larger standard deviation of 2.09341 and a standard error of the mean of 0.49342. The statistical power analysis, involving parameters such as alpha (α) and beta (β), with commonly used values of 0.05 or 0.01, indicates a significance level of 5% or 1%, respectively. Further research could delve into refining the optimal percentage of Alcofine and exploring its long-term performance under varying environmental conditions. Keywords: Ternary Blended Concrete; Alcofine; Flexural Strength; Comparative Analysis; Statistical Study