Proposal of a Simplified Prediction Formula for Compressive Strength of Fly Ash Concrete

Zhang, Wen Bo; Yoshitake, Isamu; Saitoh, Tadashi

doi:10.4028/www.scientific.net/amr.287-290.1201

Cited by 3 publications

(1 citation statement)

References 19 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mechanical properties of concrete are needed in the FE simulation. The study employs a prediction formula for compressive strength development proposed by Zhang et al [5]. They developed the formula by referring to 1900 strength data given in previous reports worldwide.…”

Section: A Prediction Formulae For Mechanical Propertiesmentioning

confidence: 99%

Fly-Ash Concretes of 50% of the Replacement Ratio to Reduce the Cracking in Concrete Structures

Mao

Yang

Zhang

et al. 2013

AMM

Self Cite

View full text Add to dashboard Cite

Fly-ash concrete used in massive concrete structure has superior advantages to reduce hydration heat. On the other hand, the fly-ash concrete has negative property of low strength development at early age because pozzolanic reaction of fly-ash activates at mature age, such as after 28 days. To investigate these characteristics of fly-ash used in concrete, the present study discusses thermal cracking possibility of fly-ash concrete by using FE analysis software. The present study employs prediction formulae proposed by Zhang and Japanese design code in the simulations. The objects in this study are normal strength concrete mixed of fly-ash up to 50% of replacement ratio to cement. The comparative investigations show that temperature effect is more significant than strength development at early age. Based on the analytical study, high volume fly-ash concretes of 30-50% of the replacement ratio can be concluded as effective and useful materials to reduce the cracking possibility in massive concrete structures. Keywords-Fly-ash concrete; Early Age, Prediction Formulae for Strength; Thermal Stress Analysis

show abstract

Section: A Prediction Formulae For Mechanical Propertiesmentioning

confidence: 99%

Fly-Ash Concretes of 50% of the Replacement Ratio to Reduce the Cracking in Concrete Structures

Mao

Yang

Zhang

et al. 2013

AMM

Self Cite

View full text Add to dashboard Cite

show abstract

Prediction of Permeability and Compressive strength for Pervious Concrete

Pareek

Hong

2020

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

Due to characteristics of water infiltration and runoff reduction pervious concrete is becoming popular among many developed countries. The most important property of pervious concrete is its permeability and compressive strength. But it is seen that pervious concrete generally possesses low compressive strength which can be improved by various cementitious material. The aim of this research is to assess the use of silica fume, fly ash and YC819 on pervious concrete. Permeability and compressive strength test was conducted out of which compressive strength was conducted as per conventional ASTM method but permeability test was conducted by new method originated by authors. Furthermore, estimation of compressive strength using statistical regression analysis is attempted compared with model generated by different researchers. Replacement of cement by silica fume and fly ash are been done in 0 to 25% and the result showed increase in compressive strength of pervious mix by 15 to 20% whereas permeability was observed to be decreased by 3% in fly ash mixed pervious mix on the other hand silica fume reduces the permeability by 5% as compared to conventional pervious mix. In accordance with data obtained for compressive strength prediction an empirical equation was found whose R2 was 0.67. When the models like Abrams, ACI, JSCE, Zain were applied and compared for prediction of compressive strength result showed that models do not predict the compressive strength as the different characteristics were neglected therefore it’s better to use Artificial Neural Network (ANN) as compared to statistical regression model for prediction.

show abstract

Integration between Sustainability and Value Engineering in the Production of Eco-Friendly Concrete

2023

View full text Add to dashboard Cite

The global concrete and construction industry’s growth has led to a shift in priorities, with a greater emphasis placed on sustainability. Hence, with technological advances, the concrete industry seeks additional cementitious materials to produce value-added products. By emphasizing the financial, ecological, and technological benefits of using fly ash as a partial cement replacement, the study constructed a framework which integrates the economic, environmental, and social pillars of sustainability through value engineering. Experimental results from 42 previous studies are analyzed and presented to underline the unique characteristics of fly ash concrete alternatives across five criteria (replacement, strength gain, compressive strength, slump, and permeability), showing how they differ from conventional concrete, and how they can be used to implement sustainable practices with positive financial outcomes. This study showed that the alternatives’ value gradually increases up to two times at 50% cement replacement. On the other hand, while the construction cost gradually increased to a peak of 19.69%, the life cycle cost went down by 41.45% at the same percentage. Thus, customers can emphasize the superiority of eco-friendly concrete while also highlighting the economic benefits, making it a more competitive option for them and expanding its market.

show abstract

Proposal of a Simplified Prediction Formula for Compressive Strength of Fly Ash Concrete

Cited by 3 publications

References 19 publications

Fly-Ash Concretes of 50% of the Replacement Ratio to Reduce the Cracking in Concrete Structures

Fly-Ash Concretes of 50% of the Replacement Ratio to Reduce the Cracking in Concrete Structures

Prediction of Permeability and Compressive strength for Pervious Concrete

Integration between Sustainability and Value Engineering in the Production of Eco-Friendly Concrete

Contact Info

Product

Resources

About