Effect of Initial Water Curing on Sorptivity Properties of Ordinary Portland and Pozzolanic Cement Concretes

Ozer, Baris; Özkul, M. Hulusi

doi:10.1061/(asce)mt.1943-5533.0001900

Cited by 4 publications

(2 citation statements)

References 40 publications

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“…Therefore, appropriate moist curing can increase concrete strength, durability, and overall performance, ensuring its good performance during use and throughout its service life. It is necessary to ensure that concrete is moist cured for at least 7 days [11]. Curing methods also have important impacts on the microstructure of concrete.…”

Section: Introductionmentioning

confidence: 99%

Effect of Micro-Cracks on Chloride Ion Diffusion in Concrete Based on Stochastic Aggregate Approach

Yang,

Wu,

Zhi

et al. 2024

Buildings

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For concrete structures in offshore areas, chloride ion erosion is one of the main factors affecting durability. It is crucial to evaluate the chloride ion permeability resistance of concrete structures. In this paper, a finite element simulation of the chloride ion diffusion process in concrete is conducted. A mass diffusion finite element model based on a random aggregate approach is established to investigate the influences of an aggregate, the interface transition zone, and micro-cracks on the chloride ion diffusion coefficients in concrete. The results show that the mass diffusion finite element analysis based on the exponential function model and the power function model can effectively simulate the chloride ion diffusion process in concrete. In addition, the data reveal that volume fraction and distribution aggregates considerably affect chloride ion diffusivity in concrete. Also, the interface transition zone significantly accelerates chloride ion diffusion in concrete. Moreover, this acceleration effect exceeds the barrier effect of an aggregate.

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Section: Introductionmentioning

confidence: 99%

Effect of Micro-Cracks on Chloride Ion Diffusion in Concrete Based on Stochastic Aggregate Approach

Yang,

Wu,

Zhi

et al. 2024

Buildings

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“…There is no direct relationship between concrete strength and permeability, and when exposed to chloride, concrete should have an impermeable cover layer. When there is enough moisture and temperature, strength gains continue beyond 28 days [14]. Sulfate attack occurs when sulfate ions in the pore solution of concrete react with concrete components, resulting in the formation of novel reaction products with a large molar volume [15,16].…”

Section: Introductionmentioning

confidence: 99%

Durability of Blast-Furnace Slag Cement Concrete With Different Curing Methods

Anwar

Emarah

2022

JES. Journal of Engineering Sciences

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The concrete industry in Egypt has incorporated Blast Furnace Slag Cement Concrete, BFSCC, as a replacement to Ordinary Portland Cement Concrete, OPCC, in favor to resist harsh conditions related to water hydraulic structures. The practice cannot follow the strict requirements of curing according to the Egyptian code of practice (ECP), where in such cases it was necessary to evaluate the mechanical behavior of such concretes experimentally with practical curing methodologies. Two different methods were used to cure concrete specimens; IC samples were immersed in water until testing time, and secondly, FC samples were kept at a certain relative humidity and temperature and sprinkled with water every twelve hours for one week, simulating practical field curing conditions. The slump, flow, air content, and unit weight of fresh concrete were measured. Compressive strength, dynamic elastic modulus, and pulse velocity are investigated for hardened concrete. The main characteristics of the concrete pore structure were determined. The chloride content of the concrete was evaluated via titration analysis after 1-, 3-, and 5-months' immersion in sodium chloride solution. Moreover, the concrete specimens were immersed in a 10% sodium sulfate solution for 360 days to test their sulfate resistance. The carbonation depths of the concrete sample were measured at 1, 2, 4, 8, and 12 weeks. The results indicated good agreement between the destructive and non-destructive tests. In addition, as the curing methods and cement type were changed, the pore structure characteristics, sulfate resistance, carbonations, chloride penetration, and diffusion coefficients were significantly influenced.

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Impact of Drying the Concrete before Its Complete Curing: Plain and Fly Ash–Based Cement Concrete

Singh

Kumar

Singh

et al. 2022

J. Mater. Civ. Eng.

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Effect of Initial Water Curing on Sorptivity Properties of Ordinary Portland and Pozzolanic Cement Concretes

Cited by 4 publications

References 40 publications

Effect of Micro-Cracks on Chloride Ion Diffusion in Concrete Based on Stochastic Aggregate Approach

Effect of Micro-Cracks on Chloride Ion Diffusion in Concrete Based on Stochastic Aggregate Approach

Durability of Blast-Furnace Slag Cement Concrete With Different Curing Methods

Impact of Drying the Concrete before Its Complete Curing: Plain and Fly Ash–Based Cement Concrete

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