Evaluation of the Compatibility of Repair Materials for Concrete Structures

Venkiteela, Giri; Klein, Matthew; Najm, Husam; Balaguru, P.

doi:10.1007/s40069-017-0208-5

Cited by 16 publications

(6 citation statements)

References 11 publications

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“…The concrete with limited slag content can increase the bond strength with higher compressive strength. Venkiteela et al (2017) have evaluated the concrete repair materials compatibility for bridge decks. Moreover, a new set-up for compatibility was also developed and tested depending on the delamination theory and cracking in bridge decks.…”

Section: High Oscillatory Properties Has Been Recordedmentioning

confidence: 99%

A review on concrete’s rheological properties

D.V.S.K.

Kumar²

2022

WJE

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Purpose This study aims on a broad review of Concrete's Rheological Properties. The Concrete is a commonly used engineering material because of its exquisite mechanical interpretation, but the addition of constituent amounts has significant effects on the concrete’s fresh properties. The workability of the concrete mixture is a short-term property, but it is anticipated to affect the concrete’s long-term property. Design/methodology/approach In this review, the concrete and workability definition; concrete’s rheology models like Bingham model, thixotropy model, H-B model and modified Bingham model; obtained rheological parameters of concrete; the effect of constituent’s rheological properties, which includes cement and aggregates; and the concrete’s rheological properties such as consistency, mobility, compatibility, workability and stability were studied in detail. Findings Also, this review study has detailed the constituents and concrete’s rheological properties effects. Moreover, it exhibits the relationship between yield stress and plastic viscosity in concrete’s rheological behavior. Hence, several methods have been reviewed, and performance has been noted. In that, the abrasion resistance concrete has attained the maximum compressive strength of 73.6 Mpa; the thixotropy approach has gained the lowest plastic viscosity at 22 Pa.s; and the model coaxial cylinder has recorded the lowest stress rate at 8 Pa. Originality/value This paper especially describes the possible strategies to constrain improper prediction of concrete’s rheological properties that make the workability and rheological behavior prediction simpler and more accurate. From this, future guidelines can afford for prediction of concrete rheological behavior by implementing novel enhancing numerical techniques and exploring the finest process to evaluate the workability.

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Section: High Oscillatory Properties Has Been Recordedmentioning

confidence: 99%

A review on concrete’s rheological properties

D.V.S.K.

Kumar²

2022

WJE

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“…The results showed that the coarse aggregate used in this study complies with the standard (IQS No. 45/1984) limits Size (5)(6)(7)(8)(9)(10)(11)(12)(13)(14). Gravel must be washed to remove clay and salts and then stored in containers in a Saturated Surface Dry (SSD) condition before use it.…”

Section: Coarse Aggregatementioning

confidence: 99%

“…It is critical to study compatibility of repair materials at the same time with bond strength to well comprehend the performance of repair materials. There are no conventional techniques to determine whether repair materials are compatible with concrete substrates [8].…”

Section: Introductionmentioning

confidence: 99%

Reactive Powder Concrete with Steel, Glass and Polypropylene Fibers as a Repair Material

2019

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Repairing of reinforced concrete structures is currently a major challenge in the construction industry and is being put back into operation with a slight loss in load carrying capacity. Damage occurs due to many factors that reduce the strength of concrete structures and their durability. The aim of this paper is study the compatibility between three types of reactive powder concrete with (steel fibre, glass fibre and polypropylene fibre) as a repair materials and normal strength concrete as a substrate concrete. Compatibility was investigated in three steps. First: individual properties for substrate concrete were studied, these are (slump test, compressive strength, splitting strength, and flexural strength) also, for repair material these are (compressive strength and flexural strength) were determined by using standard ASTM test methods. Second: bond strength of composite cylinder for substrate concrete with different repair materials were evaluated by using slant shear test. Third: compatibility was investigated by using composite prisms of substrate concrete with different repair materials under two-point loading (flexural strength test). From the experimental results concluded, bond strength between reactive powder concrete with glass fibre as a repair material and normal strength concrete as a substrate layer is higher (17.38Mpa) compared with RPC with steel fibre (13.13Mpa) and polypropylene fibre (14.31MPa). Also, it is more compatible due to flexural strength for composite prisms (having higher flexural strength (8.13MPa). Compared with steel fibre (7.44MPa) and polypropylene fibre (6.47MPa). These results due to RPC with glass fibre have good workability with suitable flowability and glass fibre have higher tensile strength compare with other fibre.

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“…The use of epoxy polymer solutions is widespread in the construction industry. Currently, repair solutions [1,2], compositions for protection of concrete surfaces from ag-gressive effects [3,4], protection of steel reinforcement in concrete [5], etc. require these materials.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Analysis of properties of epoxy compositions that operate in contact with water and oil products

Gara

Sukhanova

2018

EEJET

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Полімеррозчини на основі епоксидної смоли були модифіковані з метою підвищення стійкості в агресивних середовищах і зниження вартості. Поставлена мета була реалізована за рахунок наповнення багатофракційним мінеральним каркасом і модифікацією цеолітом та фурфуролом. Варіювалися кількість фурфуролу, загальний вміст мінерального каркасу і частка в каркасі окремих компонентів. Досліджувані композиції призначені для роботи в умовах впливу сумішей води з нафтопродуктами і іншими агентами (в елементах споруд, пов'язаних з технічним обслуговуванням транспорту). Властивості композицій визначалися після експозиції окремо в повітряному середовищі, у воді і двох видах нафти. Для пошуку оптимальних композицій використовувалася ітераційна процедура випадкового сканування полів властивостей матеріалу в п'яти координатах варійованих факторів. Поля властивостей досліджені по експериментально-статистичними моделям, які отримані за результатами натурних експериментів. ЕС-моделі використовуються для реалізації обчислювальних експериментів за допомогою методу Монте-Карло. Підтверджено можливість визначення оптимальних (по набору критеріїв) багатокомпонентних полімерних композицій для різних умов експлуатації за допомогою ітераційної процедури випадкового сканування полів властивостей. Отримані композиції для ремонту та захисту конструкцій, що контактують з водою: паста (композиція зниженої в'язкості без піску) і розчин (зі зніженою витратою епоксидної смоли). Суміші, що забезпечують збереження необхідних властивостей захисного розчину після тривалих впливів сумішей води з нафтопродуктами, застосовані при капітальному ремонті залізничного переїзного настилуКлючові слова: епоксикаучукова смола, цеоліт, фурфурол, експериментально-статистична модель, метод Монте-Карло, компромісна оптимізація UDC 691.175:519.2

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Evaluation of the Compatibility of Repair Materials for Concrete Structures

Cited by 16 publications

References 11 publications

A review on concrete’s rheological properties

A review on concrete’s rheological properties

Reactive Powder Concrete with Steel, Glass and Polypropylene Fibers as a Repair Material

Analysis of properties of epoxy compositions that operate in contact with water and oil products

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