A Survey of High Performance Concrete Developments in Civil Engineering Field

Patel, Vivek; Shah, Niraj

doi:10.4236/ojce.2013.32007

Cited by 12 publications

(7 citation statements)

References 48 publications

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“…They are used for various purposes depending upon their properties. Table 1 shows different types of chemical admixtures with their particle characteristics [10]. To reduce the water requirement by 10% to 20% without affecting the workability leading to a high strength and dense concrete Accelerator To reduce the setting time of concrete thus helping early removal of forms and therefore used in cold weather concreting…”

Section: Introductionmentioning

confidence: 99%

Statistical Analysis of Chemical Admixtures Usage for Concrete: A Survey of Eskisehir city, Turkey

Albayrak

Canbaz

2015

Procedia Engineering

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Nowadays, the concrete admixtures are widely used in the construction projects. The main types of chemical admixtures can be summarized as plasticizers, accelerating/retarding agents, air entraining agents, waterproofing additives and others such as corrosion inhibitors and colouring agents etc. The benefits derived from the use of chemical admixtures include improved durability, strength, chemical resistance, colouring, reduction in water and cement requirement and enhanced working properties of concrete. Turkey is one of the major consumers in developing countries regarding chemical admixtures. Therefore, this study set out to determine general utilization and consciousness about admixtures through a survey in Eskisehir, Turkey. The survey was performed by 153 construction professionals. The questions about reasons for preference of admixtures, types of preferred admixtures and dosage, beneficial and adverse effects of admixtures, impacts on cost and judicious use of admixtures are included in the survey. A number of statistical analyses are carried out using SPSS on data obtained. According to results, chemical admixtures are used over 70% of the total annual concrete production. The initial expectation of the participants in the use of the admixtures is to improve the properties of the fresh concrete. Additionally, the most preferred admixtures are plasticizers. The ensuing types of admixtures are agents affecting the setting time of concrete. Although the participants' interest to using chemical admixtures is very remarkable, the awareness on this subject is very deficient. The similar studies can be suggested to apply more comprehensively. Professionals, at any level in the construction sector, need to be informed about the accurate consumption of these agents in order to avoid inappropriate results.

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Section: Introductionmentioning

confidence: 99%

Statistical Analysis of Chemical Admixtures Usage for Concrete: A Survey of Eskisehir city, Turkey

Albayrak

Canbaz

2015

Procedia Engineering

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“…The High Performance Concrete may be aptly described as that unique brand of concrete, which meets with the distinctive efficiency and reliability constraints that are not capable of habitual estimation usually by employing the traditional materials and the conventional mixing, placing, and curing procedures. The concrete is one of the widely used construction materials which generally toe the line of the conventional bathtub hazard rate function curve [1]. The concrete predominantly boasts of superior compressive strength which is boosted by several qualities like elevated abrasion resistance, stiffness, minimal permeability, superior durability, greater early strength gain, and reduced cost per unit load [2].…”

Section: Introductionmentioning

confidence: 99%

Studies on Pumice Lightweight Aggregate Concrete with Quarry Dust Using Mathematical Modeling Aid of ACO Techniques

Rex

Kameshwari

2016

Advances in Materials Science and Engineering

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The lightweight aggregate is an aggregate that weighs less than the usual rock aggregate and the quarry dust is a rock particle used in the concrete for the experimentation. The significant intention of the proposed technique is to frame a mathematical modeling with the aid of the optimization techniques. The mathematical modeling is done by minimizing the cost and time consumed in the case of extension of the real time experiment. The proposed mathematical modeling is utilized to predict four output parameters such as compressive strength (Mpa), split tensile strength (Mpa), flexural strength (Mpa), and deflection (in mm). Here, the modeling is carried out with three different optimization techniques like genetic algorithm (GA), particle swarm optimization (PSO), and ant colony optimization (ACO) with 80% of data from experiment utilized for the training and the remaining 20% for the validation. Finally, while testing, the error value is minimized and the performance obtained in the ACO for the parameters such as compressive strength, split tensile strength, flexural strength, and deflection is 91%, 98%, 87%, and 94% of predicted values, respectively, in the mathematical modeling.

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“…High performance concrete indicates an exceptional form of concrete endowed with astonishing proficiency and strength essentials which are unequipped with periodical assessment on a regular basis by way of traditional materials and standard mixing, placing, and curing techniques [1]. Ordinary Portland cement (OPC) has grabbed an unenviable and undefeatable position as a significant material in the generation of concrete and meticulously releases its designed obligation as an extraordinary binder to join all the gathered materials.…”

Section: Introductionmentioning

confidence: 99%

Influence of Fly Ash, Bottom Ash, and Light Expanded Clay Aggregate on Concrete

Sivakumar

Kameshwari²

2015

Advances in Materials Science and Engineering

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Invention of new methods in strengthening concrete is under work for decades. Developing countries like India use the extensive reinforced construction works materials such as fly ash and bottom ash and other ingredients in RCC construction. In the construction industry, major attention has been devoted to the use of fly ash and bottom ash as cement and fine aggregate replacements. In addition, light expanded clay aggregate has been introduced instead of coarse aggregate to make concrete have light weight. This paper presents the results of a real-time work carried out to form light weight concrete made with fly ash, bottom ash, and light expanded clay aggregate as mineral admixtures. Experimental investigation on concrete mix M20is done by replacement of cement with fly ash, fine aggregate with bottom ash, and coarse aggregate with light expanded clay aggregate at the rates of 5%, 10%, 15%, 20%, 25%, 30%, and 35% in each mix and their compressive strength and split tensile strength of concrete were discussed for 7, 28, and 56 days and flexural strength has been discussed for 7, 28, and 56 days depending on the optimum dosage of replacement in compressive strength and split tensile strength of concrete.

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A Survey of High Performance Concrete Developments in Civil Engineering Field

Cited by 12 publications

References 48 publications

Statistical Analysis of Chemical Admixtures Usage for Concrete: A Survey of Eskisehir city, Turkey

Statistical Analysis of Chemical Admixtures Usage for Concrete: A Survey of Eskisehir city, Turkey

Studies on Pumice Lightweight Aggregate Concrete with Quarry Dust Using Mathematical Modeling Aid of ACO Techniques

Influence of Fly Ash, Bottom Ash, and Light Expanded Clay Aggregate on Concrete

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