Water permeability and rapid self-healing of sustainable sulfur composites using superabsorbent polymer and binary cement

Gwon, Seongwoo; Ahn, Eunjong; Shin, Moochul

doi:10.1016/j.conbuildmat.2020.120306

Cited by 32 publications

(11 citation statements)

References 28 publications

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“…The formed microvoids in areas surrounding SAP are often sealed by swelled hydrogel which prevents their proper identification by intrusion techniques. In this regard, SAP studies aimed at the utilization of SAPs as sealing agents in cement composites showed a rapid capability to close cracks formed by their swelling [ 52 ]. A similar conclusion was also formulated by Kang et al [ 28 ], who reported that the majority of pores were not connected to each other and separated independently.…”

Section: Resultsmentioning

confidence: 99%

Effects of Secondary Porosity on Microstructure and Mechanical Properties of SAP-Containing Lime-Based Plasters

et al. 2022

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Despite the many benefits associated with the utilization of superabsorbent polymers (SAPs), several drawbacks have been reported. In particular, the effect of SAPs on microstructure, together with its consequences for mechanical properties, is not fully understood yet for some composite materials. This study analyzes the role of SAPs in the formation of the microstructure of lime composites, taking into account their chemical composition. The obtained experimental results show that the particle size and cross-linking density of used SAPs are crucial parameters affecting both the microstructure and mechanical performance of the analyzed composites. Coarser SAPs with low cross-linking density in the dosage of 0.5 and 1 wt.% are found as the most suitable solution, leading even to a slight improvement of mechanical parameters. The secondary porosity formed by swelled hydrogels is identified as a very significant factor since hydrogel-filled voids do not contribute to the strength parameters. The formation of the affected zone around SAP cores depends on the chemical composition of SAPs considerably as the higher cross-linking density influences the desorption rate. Based on achieved results, utilization of SAPs in building materials should be studied at a more detailed level with particular importance on the definition of SAP-related voids and affected zone around SAP particles.

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Section: Resultsmentioning

confidence: 99%

Effects of Secondary Porosity on Microstructure and Mechanical Properties of SAP-Containing Lime-Based Plasters

et al. 2022

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“…This self-healing is promoted by nucleation and growing of hydrated yields around the nucleus. A better rapid self-healing increased proportionally with an increasing calcium sulfoaluminate ratio [56].…”

Section: Advances In Polymer Technologymentioning

confidence: 95%

Minireview on Self-Healing Polymers: Versatility, Application, and Prospects

Rahman¹,

Shefa²

2021

Advances in Polymer Technology

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Nature is blessed with self-healing properties. Mimicking nature is a traditional practice to innovate new classes of materials for researchers. In this practice, researchers made a revolutionary approach to innovate self-healing polymer (SHP) that can be used to treat damage-related losses. Different SHPs with various properties have been developed for a wide range of applications. SHPs unlocked the key to the taste of real life through their application and versatility in the sectors close to our day-by-day life of this age and the near future. In this study, we reviewed the scopes and prospects of the application of SHPs owing to different properties. Varieties of amazing properties made SHPs fit in different sectors such as construction, paint and coat, electronics, healthcare, textile, and automotive and aerospace. Similarly, due to having suitable functionality, SHPs can also be used in different industries. Therefore, it is high time to generalize the production of SHPs by suitable research and make sure the easy application for the welfare of human civilization and other living creatures.

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“…With the hydration of cement, the concentration value of cations gradually increases in the concrete pore solution. An increase in the concentration of pore solution can cause a release of water adsorbed in SAP, and it can make the cement attain a high degree of hydration to enhance the strength of concrete (Gwon et al 2020;Liu et al 2019). The experimental results of Dang et al (2017) show that the addition of SAP in concrete can improve its pore structure, increasing the gel pores and small capillary pores and decreasing the sizes of big capillary pores and air pores.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Molecular Modeling Computation of Reinforcing Mechanism of Mortar by Polyether Polyol

Zhang

Zuo

Liu

et al. 2022

ACT

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The purpose of this research work was to study the effect of polyethylene glycol (PEG) and polypropylene glycol (PPG) as polyether polyols on the properties of mortar specimens. Electrochemical measurement was used to investigate the change in charge transfer resistance of mortar during the hydration of cement. The mechanical properties of the mortar specimens were studied by flexural and compressive strength tests. The results show that PPG helps to improve the mechanical properties of mortar specimens compared with PEG, and that the improvement is better for high molecular weight. The mechanism of the interaction between PEG and PPG molecules and C-S-H gel was examined by molecular dynamics simulations and density flooding theory calculations, and the effect of molecular weight of PEG and PPG on the interaction of surface of C-S-H gel is discussed.

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Water permeability and rapid self-healing of sustainable sulfur composites using superabsorbent polymer and binary cement

Cited by 32 publications

References 28 publications

Effects of Secondary Porosity on Microstructure and Mechanical Properties of SAP-Containing Lime-Based Plasters

Effects of Secondary Porosity on Microstructure and Mechanical Properties of SAP-Containing Lime-Based Plasters

Minireview on Self-Healing Polymers: Versatility, Application, and Prospects

Experimental and Molecular Modeling Computation of Reinforcing Mechanism of Mortar by Polyether Polyol

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