Curing of concrete maintains satisfactory moisture content in concrete in its early stages so as to develop desired properties. Self-cured concrete is one type of concrete, which cure itself by retaining water (moisture content) in it. The self-curing process of concrete takes place from inside to outside, which reduces the autogenous shrinkage and self-desiccation. It is mainly practiced …
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However, porous structured LWA can soak water during the mixing process and provide internal curing (Rampradheep and Sivaraja, 2016;Shafigh et al., 2012;Yang and Wang, 2017).
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Similarly to the division accepted in external curing, RILEM TC-196 distinguishes between two categories of internal curing: (a) internal water curing (sometimes called "water entrainment"), when the curing agent performs as a water reservoir, which gradually releases water, and (b) internal sealing, when the curing agent is intended to ...
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The study presents experimental and numerical investigations conducted to assess the effects of using self-curing concrete, highlighting the impact of the reinforcement ratio, and the size of the central square opening on the behavior of flat reinforced concrete slabs. Polyethylene glycol 400 is used to produce the self-curing concrete.
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conventional concrete. Water transport through self-curing concrete was also found to be lower than air-cured conventional concrete. Finally, as the self-curing concrete aged, water sorptivity and water permeability values decreased, indicating a lower percentage of permeable pores due to continued cement hydration. Overall, these findings ...
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incorporation of natural additives into self-curing concrete systems. Aloe vera gel has been investigated for its potential as a bio-additive in concrete due to its unique properties, including high water retention capacity and viscosity. Research suggests that incorporating aloe vera gel into
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Among the various chemical admixtures available, Super Absorbent Polymer (SAP) possess several desirable properties and the use of water-soluble polymers as self-curing agents in …
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A self-curing concrete is provided to absorb water from atmosphere to achieve better hydration of cement in concrete which ... concrete is of primary importance to the modern concrete industry.Following list of some chemicals which are hydrophilic in nature. Polyvalent alcohol Polyethylene glycol (peg) Poly-acrylic acid Xylitol, sorbitol ...
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The present study reviews mechanism of self-curing, different self-curing methods and various researches and their impact on utilization of SAP as self-curing agent in order to …
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Self-cured concrete is a type of concrete with a special ability to reduce autogenous shrinkage responsible for early-stage cracking. It is useful generally for the construction of high rise buildings and bridges. The application and use of this technique of curing concrete, however, depends on the level of awareness among stakeholders regarding the …
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Abstract Internal curing is an important process for high strength concretes such as self-compacting concrete (SCC). A wide range of additives is considered for improving this process and provides necessary water for hydration. Pozzolans such as microsilica and zeolite also can increase the strength and durability. In this study, a range of SAP (0.1%, 0.3% and …
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For this purpose, the US has developed a self-curing concrete additive. E5--the self-curing additive in question--is highly nature friendly and makes concrete a green material. ... Self-curing concrete is usually developed …
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Self-curing (SC) concrete cures without external curing and polyethylene glycol (PEG) is one of the chemical agents that decreases water loss and pulls moisture from the surrounding environment, aiding in concrete curing Bashandy et al. [1].As a result of the weak bonds and brittleness of ceramic materials, the use of ceramic waste reduced the sample …
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The evaluation of self-curing concrete's effectiveness involved studying durability, along with physical, mechanical, and microstructural properties., the analysis of these study and the results are reviewed and presented in this paper. ... Kovler K. Smart Additives for Self-Curing Concrete. MRS Proceedings, 2012b. Cambridge Univ Press ...
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In this study, the effect of initial steam curing and different types of mineral additives (Metakolin, Pomis, and Trass) on mechanical and durability characteristics of self-compacting concrete ...
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In view of this, self-curing covers not only use of pre-wetted LWA, but also other methods of curing: water curing by means of variety of curing agents introduced in the concrete mix, and also the ...
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Self-curing concrete is achieved by means of replacing a part of aggregate by lightweight aggregate or adding chemical admixtures. The self-curing process of concrete takes place from inside to outside, thus reducing the autogenous shrinkage and self-desiccation, especially for the high-performance concrete with relatively low water/binder ratio.
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In this study, we study the review of previously published papers on self-curing concrete and find out suitable moisture containing agents and some another Admixtures to improve moisture holding capacity of concrete. The effect of self-curing concrete of compressive and split tensile strength is also study.
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In formation of self-curing concrete, some additives rich in moisture holding properties are mix in concrete. The presence of these materials, even in very small amount improves the internal moisture of concrete. Literature Review C. Agalya and Dr. G. Dhanalakshmi[Feb-2018] had applied shrinkage reducing admixture ...
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The use of self-curing concrete with pre-saturated lightweight expanded clay aggregate, PEG, PVA, SAP, and other additives is a tried-and-true method of reducing self-desiccation and autogenously shrinkage, according to the past research studies from various researchers, In special concrete and self-curing concrete, lightweight expanded clay ...
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investigation into the feasibility of formulating self-curing concrete," Mater. Struct., t y (), pp. x r x–615. [5] M.V.Jagannadha Kumar, M. Srikanth, K. Jagannadha Rao, "Strength Characteristics Of Self-Curing Concrete," International Journal of Research in Engineering and Technology ISSN: 2319-1163, pp 51-55
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The self compact self curing concrete with FAA as self curing agent show a significantly higher compressive strength at 7 and 28 days …
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Self-cured self-compacting mortars were found to have a dense pore structure and low porosity. Patel Manishkumar Dahyabhai et al. [4] investigated the use of Poly Ethylene Glycol as an additive in ...
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A self-curing concrete is provided to absorb water from atmosphere from air to achieve better hydration of cement in concrete. It solves the problem that the degree of cement hydration is lowered due to no curing or improper curing, and thus unsatisfactory properties of concrete. ... Flowability additive US6166119A (en) * : ...
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Self-curing concrete is a contemporary type of concrete that holds water, prevents loss of moisture from the surface, and facilitates self-curing. The existing chemical admixture for self-curing ...
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Study on Self Curing Concrete J Sravani, Mr SP.Srujana, Master of technology civil engineering Asst.professor. Department of civil engineering priyadarshini institute of technology and management ... Metakaolin, are some of the pozzolanic materials which can be used in concrete as partial replacement of cement, which are very essential ...
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investigate the potential synergistic effects of self-curing mechanisms and the incorporation of natural additives on the performance, mechanical qualities, and overall sustainability of the …
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Creating HPC needed to develop the strength of some addictive mineral materials, such as silica fume, fly ash, and super-plasticizers [6], [7]. M.I. ... Self-curing concrete engrosses moisture from the air and retains the water for proper hydration of cement. In a conventional technique, the hydration process continuously evaporates water from ...
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Some chemical and mineral admixtures, such as fly ash, blast-furnace-slag, ... the content of internal curing water is critical for concrete self-healing. ... as concrete additives is one of the promising strategies that can induce internal curing to reduce autogenous shrinkage and self-desiccation of HPC [224], ...
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The use of self-curing concrete helps in saving huge amounts of water required for curing. 1.6 Aims and Objectives To determine the design mix proportions of self-curing concrete, using chemical admixture sodium lignosulphonate, for various trials of 0.25%, 0.50%, 0.75%, 1.00%, and 1.50%, for M40 and M50 grades of self-curing concrete.
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