Effect of curing temperature and relative humidity on early age and hardened properties of SCC

Barluenga, Gonzalo; Guardia, Cynthia; Puentes, Javier

doi:10.1016/j.conbuildmat.2018.02.029

Cited by 19 publications

(4 citation statements)

References 21 publications

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“…The study used grain sizes of ϕ 4-8 mm only. The bulk density of coarse aggregate is ρa = 2.64 g/cm 3 . Sieve analysis of coarse aggregate is shown in Table 2.…”

Section: Methodsmentioning

confidence: 99%

“…The ability to consolidate under its own weight of concrete mixture without any means of compaction is a characteristic of SCC. Due to using small size aggregate and flowability of concrete mixture, SCC spreads fluently around reinforcement [2][3][4][5]. It is worth noting that nowadays cement paste content and water to binder ratio are the most significant parameters of the mix design which influences rheological parameters and strength of concrete.…”

Section: Introductionmentioning

confidence: 99%

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The impact of coarse aggregate shape on the behavior of self-compacting high-performance concrete

Ostrowski

2018

E3S Web Conf.

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Self-Compacting High Performance Concrete (SCHPC) presents a crucial step in the development of concrete technology. The most important features of self-consolidating concrete are flowability, segregation resistance and passing ability. Generally, the rheological properties are modified by effective superplasticisers and water to binder ratio. The aim of this study is to focus on the important aspect of the impact of shape of the coarse aggregate on fresh concrete mixture properties, strength and deformability of SCHPC. Coarse aggregate is a significant proportion of the concrete volume and therefore has a meaningful influence on its quality. By appropriate selection of the shape of the grain aggregate, it is possible to affect the rheological parameters of concrete. The results presented in this study indicated that the shape of the grains of coarse aggregate has an impact on the strength and stiffness of SCHPC. Moreover, the occurrence of irregular grains of coarse aggregate causes lower slump flow and higher plastic viscosity in comparison to concrete mixtures with regular grains only. The research presented in this article is part of the author's wider research devoted to this issue.

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“…The study used grain sizes of ϕ 4-8 mm only. The bulk density of coarse aggregate is ρa = 2.64 g/cm 3 . Sieve analysis of coarse aggregate is shown in Table 2.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The impact of coarse aggregate shape on the behavior of self-compacting high-performance concrete

Ostrowski

2018

E3S Web Conf.

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“…Apart from chemical type and few physical properties, rest of information related to polymer is considered to be confidential by manufacturers; and on other side, range of polymers are available for various types of application area and mechanical requirement. Numerous investigations have been conducted in recent years to better understand the interactive effects of curing temperature on hydration and their correlation in the strength development of cementitious materials [30][31][32][33][34][35]. Still there is limited data available on the performance of redispersible polymers compositional analysis and its effect on adhesive properties of cementitious material.…”

Section: Introductionmentioning

confidence: 99%

Cementitious Coatings for Concrete Surfaces: Effects of Curing Conditions on Performance Measure

Chitte,

Narkhede,

Puri

et al. 2024

AMR

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To increase cohesiveness, toughness, impermeability, and adhesion strength in cementitious materials like mortars and concrete, vinyl acetate ethylene (VAE) copolymer redispersible powder (RDP) is used. However, due to numerous variety of material, choosing an original performing RDP is challenging. The goal of this study is to assess the bond strength to concrete surfaces of various redispersible polymer-modified cementitious coatings under various accelerated settings. The outcomes showed that the RDP backbone composition has a significant influence on the coatings' adhesion strength. Methyl methacrylate (MMA) and Vinyl chloride (VC) present as comonomers in RDP exhibit outstanding thermal stability and boost tensile adhesion strength by 41% and 21%, respectively, in comparison to other RDPs. According to SEM studies, the VC- RDP stimulates the formation of fibrous ettringite, producing a uniform and cohesive microstructure.

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“…In practice, the concrete with various moisture content was frequently subjected to the condition with various RH values, and the previous investigations found that the internal moisture content and external RH have an obvious impact on the properties of concrete. For the mechanical properties, Barluenga et al [14] and Han et al [15] investigated the impact of applied curing RH on the mechanical properties of concrete, and the results reported that increasing curing RH was helpful to the strength of concrete. For the early age and long-time deformation of concrete, Yalçınkaya and Yazıcı [16] and Frech-Baronet et al [17] studied the effect of RH on the shrinkage and creep of concrete, and the results reported that the shrinkage value decreased with increasing RH, whereas the increasing RH led to a decrease in the indentation modulus and long-term creep rate was increased.…”

Section: Introductionmentioning

confidence: 99%

Chloride Penetration into Concrete under the Coupling Effects of Internal and External Relative Humidity

Fang

Ming-min

2020

Advances in Civil Engineering

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Chloride penetration frequently happens in an unsaturated concrete; in this case, the chloride migration is under the coupling effects of internal moisture and external relative humidity (RH). Various chloride attack tests were designed in this paper to investigate the effects of internal moisture and external RH (50–100%) on the chloride penetration into an unsaturated concrete, and the chloride content was determined to quantify the chloride migration in concrete. The results highlighted that there was a good correlation between the chloride penetration into concrete and its internal RH. The chloride ion was difficult to penetrate into concrete when its internal RH was below 50%; however, the chloride penetration rate increased when the internal RH of concrete was above 75%, and the chloride migration increased with increasing RH and exposure duration. Water evaporation in concrete increased with decreasing external RH, and an obvious increase in the surface chloride content may be observed when external RH was 50%; however, when external RH was above 75%, the inner chloride content increased and surface chloride content decreased with increasing exposure duration. Simulating the chloride penetration under wet-dry cycling, the water migration resulted in an increase in the surface chloride content and a decrease in the inner chloride content, and the chloride crystal precipitated on the surface of concrete with a high w/c ratio.

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Effect of curing temperature and relative humidity on early age and hardened properties of SCC

Cited by 19 publications

References 21 publications

The impact of coarse aggregate shape on the behavior of self-compacting high-performance concrete

The impact of coarse aggregate shape on the behavior of self-compacting high-performance concrete

Cementitious Coatings for Concrete Surfaces: Effects of Curing Conditions on Performance Measure

Chloride Penetration into Concrete under the Coupling Effects of Internal and External Relative Humidity

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