Mix design of high-performance concrete

Laskar, Aminul Islam

doi:10.1590/s1516-14392011005000088

Cited by 17 publications

(9 citation statements)

References 9 publications

(4 reference statements)

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“…The performance of the proposed system was evaluated by three statistical measures namely root mean square error (RMSE), coefficient of determination (R2) and mean absolute error (MAE) to verify and validate the accuracy of the proposed method (9) (10) Here, Ai = Actual value, M=mean of actual value; Pi = Predicted value; n = nu mber of data (1, 2, 3 …). Table 4 shows RSM E, R2, and MAE results of the proposed system using wSVM with polynomial and RBF kernel functions compared against the other AI systems (SVM and BPN)…”

Section: Resultsmentioning

confidence: 99%

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High-Performance Concrete Compressive Strength Prediction Based Weighted Support Vector Machines

Rguig¹,

Mohamed²

2017

IJERA

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Concrete is the safest and sustainable construction material wh ich is most widely used in the world as it provides superior fire resistance, gains strength over time and gives an extremely long service life. Unfortunately high performance concrete is undoubtedly one of the most innovativ e materials in construction. Its Designing involves the process of selecting suitable ingredients of concrete (water, cement, fine and aggregates and a number of additives like mineral and chemical ad mixture) and determining their relat ive amounts with the objective of producing a high performance concrete of the required, strength, durability, and workab ility as economically as possible. Their proportions have a high influence on the final strength of the product. These relations do not seem to follow a mathematical formu la and yet their knowledge is crucial to optimize the quantities of raw materials used in the manufacture of high performance concrete. Therefore, it would be important to have a tool to numerically model such relationships, even before pro cessing. In this aspect the main purpose of this paper is to predict the compressive strength of the high performance concrete by using classification algorith ms. For building these models, training and testing using the available experimental results for 1030 specimens produced with 8 d ifferent mixture proportions are used. The result fro m this study suggests that weighted Support Vector Machines (wSVM) based models perform remarkably well in predict ing the compressive strength of the concrete mix.

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Section: Resultsmentioning

confidence: 99%

“…There are popular methods of mix proportion of HPC such method proposed by [7,8,9] among other methods [10]. However, to obtain required mix proportions of HPC most commonly based on trial mixes as stated in relevant standards, experience, and ru les of thumb approach [11,12].…”

Section: Introductionmentioning

confidence: 99%

High-Performance Concrete Compressive Strength Prediction Based Weighted Support Vector Machines

Rguig¹,

Mohamed²

2017

IJERA

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“…A Sequência B (SB) é utilizada na produção de concretos de alta resistência, empregada por Laskar et. al (2011).…”

Section: Peneiraunclassified

Avaliação dos processos de mistura de concretos permeáveis com seixo

Cordeiro

Freitas

Cordeiro

et al. 2021

RSD

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A crescente impermeabilização dos espaços urbanos traz consigo problemas e desastres ambientais como as inundações, em decorrência da alteração na dinâmica da água da chuva que infiltrava e passa a escoar, exigindo a maior capacidade dos sistemas de micro e macrodrenagem. O concreto permeável (CPER), composto por cimento Portland e agregado graúdo, ganha espaço como forma de mitigar os efeitos da redução das áreas permeáveis. Nesse contexto, o presente trabalho busca investigar a influência da sequência de mistura no comportamento hidráulico e mecânico do CPER produzido com seixo rolado, dada a existência de lacunas na literatura sobre o impacto desse parâmetro sobre material. Para tal, foram estudadas três sequências de misturas a partir da produção de placas de CPER de dimensões 40cmx40cmx10cm. Foram analisados os resultados de resistência à tração na flexão, porosidade, tortuosidade e permeabilidade. Estatisticamente, não foram verificadas diferenças entre os resultados, entretanto, observou-se o crescimento do volume e da área de poros, alterando-se as sequencias, quando utilizado na produção dos concretos um misturador de eixo inclinado.

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“… Modified American Concrete Institute method gives usage of High dosage of Superplasticizer to get high slump which reduces the strength therefore proper content of SP should be recommended. A mix design procedure for High Performance Concrete had been suggested by aminul Islam Laskar [45] which took rheological parameters into account to determine compressive strength, water cement ratio and aggregate volume to paste volume ratio. Instead of using water cement ratio and compressive strength relationship, relationship between compressive strength, paste volume-aggregate volume ratio; physical properties of aggregate and rheological parameters were used in mix design.…”

Section: Air Entraining Admixturementioning

confidence: 99%

A Survey of High Performance Concrete Developments in Civil Engineering Field

Patel¹,

Shah²

2013

OJCE

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High Performance concrete (HPC) has received increased attention in the development of infrastructure Viz., Buildings, Industrial Structures, Hydraulic Structures, Bridges and Highways etc. leading to utilization of large quantity of concrete. This paper presents a comprehensive coverage of High Performance concrete developments in civil engineering field. It highlights the High Performance concrete features and requirements over conventional concrete. Furthermore, recent trends with regard to High Performance Concrete development in this area are explored. This paper also includes effect of Mineral and Chemical Admixtures used to improve performance of concrete.

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Mix design of high-performance concrete

Cited by 17 publications

References 9 publications

High-Performance Concrete Compressive Strength Prediction Based Weighted Support Vector Machines

High-Performance Concrete Compressive Strength Prediction Based Weighted Support Vector Machines

Avaliação dos processos de mistura de concretos permeáveis com seixo

A Survey of High Performance Concrete Developments in Civil Engineering Field

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