Effect of fly ash and bottom ash on the ratio of splitting tensile strength to compressive strength of concrete

Mahajan, Lomesh; Bhagat, S. R.

doi:10.1088/1757-899x/1070/1/012032

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…The samples containing the lowest fly ash content gave higher split tensile strength which was in contrast to what was noted for flexural strength. Several researchers [50][51][52][53][54][55] noted the same trend of reduction in concrete flexural strength with increase in fly ash content. This phenomenon can be attributed to the bond strength of the fly ash compared to the cement that it has replaced.…”

Section: Effect Of Pet and Fly Ash On Composite Split Tensile Strengthmentioning

confidence: 76%

Effects of hybrid polyethylene terephthalate fibre and fly ash on mechanical properties of concrete

Nkomo

Masu

Nziu

2022

Mater. Res. Express

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Cracked concrete is a problem due to several factors such as poor maintenance, insufficient reinforcement or steel corrosion leading to crack propagation. There is a need to increase the load-bearing capacity of concrete and increase its life span. The use of waste polyethylene terephthalate fibres and fly ash in a hybrid concrete composite dramatically alleviates the problem of crack propagation and failure sustainably. This study aimed to optimize a waste polyethylene terephthalate fibre/fly ash hybrid cement composite. The concrete test specimens were fabricated using polyethylene terephthalate fibres and fly ash following a full factorial experimental design. The developed specimens were then tested to ascertain their workability and material strength properties. The combined effect of fibre addition and fly ash showed a general decreasing slump value for all quantities of fly ash content. The combined optimum compressive strength for fibre and fly ash was at 0.5 % and 15 %, respectively, with a strength of 15.54 N/mm2. The optimum split tensile strength of 2.79 N/mm2 was realised at 0.5 % fibre and 20 % fly ash mass fractions. The optimum flexural strength for fibre and fly ash mass fractions was obtained at 0.5 % and 30 %, respectively. The trend observed by the rebound number followed that of the compressive strength. However, the non-destructive rebound hammer method gave significantly lower strength values than the destructive test method.

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Section: Effect Of Pet and Fly Ash On Composite Split Tensile Strengthmentioning

confidence: 76%

Effects of hybrid polyethylene terephthalate fibre and fly ash on mechanical properties of concrete

Nkomo

Masu

Nziu

2022

Mater. Res. Express

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“…Since a cement composite's primary function as a construction material is compression, its mechanical strength is prized above all others. Studies have shown that ordinary compressive strengths are within the range of 25 to 115 MPa [45][46][47][48][49]72]. Generative ensemble approaches, on the other hand, produce groups of base learners that manipulate the base supervised learning or the data frame structure to enhance the base learners' variety and performance.…”

Section: Literature Reviewmentioning

confidence: 99%

Predicting strength of concrete by ensemble technique

Kirange¹,

Mahajan²

2023

Res. Eng. Struct. Mater.

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The developing countries share similar attributes at all the regions. Still 43% of urban population did not escape from slums live hoods. As many developing countries focuses on the infrastructural development and try to improve people living standards. This infrastructural built-up activity consumes lots of concrete and other construction materials. These construction materials possess different properties from place to place. Cementitious composites undergo transformations in their fundamental properties due to regional variations in environmental conditions. Therefore, their mechanical strength computing tools plays crucial role. When topic touches with concrete, one of the most important characteristics is the compressive strength. Predicting the strength of concrete has traditionally been done with using mechanical means, but in recent years few soft computing methods have become important tools. In this research, we apply two methods to compute the Compressive strength of fly ash concrete based on the results of our own experimental findings. To anticipate concrete strength., this study investigated the properties of all the materials involved. The ensemble methodology and the decision tree were two of the success-forecasting methodologies that were investigated, and comparative assessments were made on them. The R 2 value for the ensemble methodology was determined to be 0.96, which was much higher than the DT method's 0.76. In addition to k-fold Cross Validation, the findings of the trials are further supported by assessments of root mean square error (RMSE) and root mean error (RME). Ensemble approaches are good for minimizing model variance, improving prediction accuracy. Combining many models to make a single forecast from all their potential predictions eliminates variation.

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Combined effect of fly ash and fiber on spreadability, strength and water permeability of foam concrete

Kamisetty,

Gandhi,

Kumar

2023

Journal of Building Engineering

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Effect of fly ash and bottom ash on the ratio of splitting tensile strength to compressive strength of concrete

Cited by 3 publications

References 13 publications

Effects of hybrid polyethylene terephthalate fibre and fly ash on mechanical properties of concrete

Effects of hybrid polyethylene terephthalate fibre and fly ash on mechanical properties of concrete

Predicting strength of concrete by ensemble technique

Combined effect of fly ash and fiber on spreadability, strength and water permeability of foam concrete

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