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Peng K, Wu L, Zandi Y, Agdas AS, Majdi A, Denic N, Zakić A, Khalek Ebid AA, Khadimallah MA, Ali HE. Application of Polyacrylic Hydrogel in Durability and Reduction of Environmental Impacts of Concrete through ANN. Gels 2022; 8:gels8080468. [PMID: 35892727 PMCID: PMC9332682 DOI: 10.3390/gels8080468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 12/04/2022] Open
Abstract
While adding superabsorbent polymer hydrogel particles to fresh concrete admixtures, they act as internal curing agents that absorb and then release large amounts of water and reduce self-desiccation and volumetric shrinkage of cement that finally result in hardened concrete with increased durability and strength. The entrainment of microscopic air bubbles in the concrete paste can substantially improve the resistance of concrete. When the volume and distribution of entrained air are adequately managed, the microstructure is protected from the pressure produced by freezing water. This study addresses the design and application of hydrogel nanoparticles as internal curing agents in concrete, as well as new findings on crucial hydrogel–ion interactions. When mixed into concrete, hydrogel particles produce their stored water to power the curing reaction, resulting in less volumetric shrinkage and cracking and thereby prolonging the service life of concrete. The mechanical and swelling performance qualities of the hydrogel are very sensitive to multivalent cations found naturally in concrete mixes, such as aluminum and calcium. The interactions between hydrogel nanoparticles and alkaline cementitious mixes are described in this study, while emphasizing how the chemical structure and shape of the hydrogel particles regulate swelling behavior and internal curing efficiency to eliminate voids in the admixture. Moreover, in this study, an artificial neural network (ANN) was utilized to precisely and quickly analyze the test results of the compressive strength and durability of concrete. The addition of multivalent cations reduced swelling capacity and changed swelling kinetics, resulting in fast deswelling behavior and the creation of a mechanically stiff shell in certain hydrogel compositions. Notably, when hydrogel particles were added to a mixture, they reduced shrinkage while encouraged the creation of particular inorganic phases within the void area formerly held by the swelled particle.
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Affiliation(s)
- Kang Peng
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China;
| | - Longliang Wu
- Bureau Public Works of Shenzhen Municipality, Shenzhen 518031, China
- Correspondence:
| | - Yousef Zandi
- Department of Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz 51579, Iran;
| | | | - Ali Majdi
- Department of Building and Construction Technologies Engineering, Al-Mustaqbal University College, Hillah 51001, Iraq;
| | - Nebojsa Denic
- Faculty of Sciences and Mathematics, University of Priština, 38220 Kosovska Mitrovica, Serbia;
| | - Aleksandar Zakić
- Faculty of Mathematics and Computer Science, ALFA BK University, 11070 Belgrade, Serbia;
| | - Ahmed Abdel Khalek Ebid
- Structural Engineering and Construction Management, Faculty of Engineering, Future University in Egypt, New Cairo 11745, Egypt;
| | - Mohamed Amine Khadimallah
- Civil Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Al-Kharj 16273, Saudi Arabia;
- Laboratory of Systems and Applied Mechanics, Polytechnic School of Tunisia, University of Carthage, Tunis 1054, Tunisia
| | - H. Elhosiny Ali
- Advanced Functional Materials & Optoelectronic Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Physics Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
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Liu Q, Peng K, Zandi Y, Agdas AS, Al-Tamimi HM, Assilzadeh H, Khalek Ebid AA, Khadimallah MA, Ali HE. Mechanical Characteristics and Self-Healing Soil-Cementitious Hydrogel Materials in Mine Backfill Using Hybridized ANFIS-SVM. Gels 2022; 8:gels8070455. [PMID: 35877540 PMCID: PMC9315745 DOI: 10.3390/gels8070455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/09/2022] [Accepted: 07/11/2022] [Indexed: 12/02/2022] Open
Abstract
The compressive strength, shrinkage, elasticity, and electrical resistivity of the cement-soil pastes (slag, fly ash) of self-healing of cementitious concrete have been studied while adding hydrogels with nano silica (NSi) in this research. Defining the hydraulic and mechanical properties of these materials requires improvement to motivate more uptake for new buildings. Initially, examining the impact of different synthesized hydrogels on cement-soil pastes showed that solid particles in the mixtures highly affected the absorption capacity of NSi, representing the importance of direct interactions between solid particles and hydrogels in a cementitious matrix. All test results were analyzed by use of a hybridized soft computing model such as the adaptive neuro fuzzy inference system (ANFIS) and support vector regression (SVR) for precise studying and the avoidance of few empirical tests or error percentages. Subsequently, the best RMSE of ANFIS is 0.6568 and the best RMSE of SVM is 1.2564; the RMSE of ANFIS-SVM (0.5643) in the test phase is also close to zero, showing a better performance in hypothesizing self-healing soil-cementitious hydrogel materials in mine backfill. The R2 value for ANFIS-SVM is 0.9547, proving that it is a proper model for predicting the study’s goal. Electrical resistivity and compressive strength declined in the cement-soil pastes including hydrogels according to experimental outcomes; it was lowered by the increase of NSi concentration in the hydrogel. There was a decrement in the autogenous shrinkage of cement-soil pastes while adding hydrogel, depending on the NSi concentration in the hydrogels. The findings of this research are pivotal for the internal curing of cementitious materials to define the absorption of hydrogels.
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Affiliation(s)
- Qi Liu
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China;
- Changsha Institute of Mining Research Co., Ltd., Changsha 410083, China
| | - Kang Peng
- School of Resources and Safety Engineering, Central South University, Changsha 410083, China;
- Correspondence:
| | - Yousef Zandi
- Department of Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz 51579, Iran;
| | | | - Haneen M. Al-Tamimi
- Air Conditioning and Refrigeration Techniques Engineering Department, Al-Mustaqbal University College, Babylon 51001, Iraq;
| | - Hamid Assilzadeh
- Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India;
| | - Ahmed Abdel Khalek Ebid
- Structural Engineering and Construction Management, Faculty of Engineering, Future University in Egypt, New Cairo 11745, Egypt;
| | - Mohamed Amine Khadimallah
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 16273, Saudi Arabia;
- Laboratory of Systems and Applied Mechanics, Polytechnic School of Tunisia, University of Carthage, Tunis 1054, Tunisia
| | - H. Elhosiny Ali
- Advanced Functional Materials & Optoelectronic Laboratory (AFMOL), Department of Physics, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia;
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
- Physics Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
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Alyousef R, Mohammadhosseini H, Ebid AAK, Alabduljabbar H, Poi Ngian S, Huseien GF, Mustafa Mohamed A. Enhanced Acoustic Properties of a Novel Prepacked Aggregates Concrete Reinforced with Waste Polypropylene Fibers. Materials (Basel) 2022; 15:ma15031173. [PMID: 35161117 PMCID: PMC8839839 DOI: 10.3390/ma15031173] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/26/2022] [Accepted: 01/29/2022] [Indexed: 11/22/2022]
Abstract
This research aimed to investigate the performance of prepacked aggregates fiber-reinforced concrete (PAFRC) with adequate acoustic characteristics for various applications. PAFRC is a newly developed concrete made by arranging and packing aggregates and short fibers in predetermined formworks, then inserting a grout mixture into the voids amongst the aggregate particles using a pump or gravity mechanism. After a one-year curing period, the effects of utilizing waste polypropylene (PP) fibers on the strength and acoustic characteristics of PAFRC mixes were examined. Compressive and tensile strengths, ultrasonic pulse velocity (UPV), sound absorption, and transmission loss were investigated on plain concrete and PAFRC mixtures comprising 0–1% PP fibers. The results revealed that the use of PP fibers slightly decreased the compressive strength and UPV of PAFRC mixes. The inclusion of waste PP fibers also significantly increased the tensile strength and sound insulation coefficient of PAFRC mixes, especially at higher fiber dosages. In the medium-to-high frequency ranges, more than 60% acoustic absorption coefficient was observed, indicating that PAFRC specimens have good sound insulation properties.
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Affiliation(s)
- Rayed Alyousef
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (H.A.); (G.F.H.); (A.M.M.)
- Correspondence:
| | - Hossein Mohammadhosseini
- Institute for Smart Infrastructure and Innovative Construction (ISIIC), School of Civil Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia; (H.M.); (S.P.N.)
| | | | - Hisham Alabduljabbar
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (H.A.); (G.F.H.); (A.M.M.)
| | - Shek Poi Ngian
- Institute for Smart Infrastructure and Innovative Construction (ISIIC), School of Civil Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia; (H.M.); (S.P.N.)
| | - Ghasan Fahim Huseien
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (H.A.); (G.F.H.); (A.M.M.)
- Department of the Build Environment, School of Design and Environment, National University of Singapore, Singapore 117566, Singapore
| | - Abdeliazim Mustafa Mohamed
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (H.A.); (G.F.H.); (A.M.M.)
- Building and Construction Technology Department, Bayan University, Khartoum 11115, Sudan
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Alyousef R, Ebid AAK, Huseien GF, Mohammadhosseini H, Alabduljabbar H, Poi Ngian S, Mohamed AM. Effects of Sulfate and Sulfuric Acid on Efficiency of Geopolymers as Concrete Repair Materials. Gels 2022; 8:gels8010053. [PMID: 35049588 PMCID: PMC8774346 DOI: 10.3390/gels8010053] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 02/01/2023] Open
Abstract
Various geopolymer mortars (GPMs) as concrete repairing materials have become effective owing to their eco-friendly properties. Geopolymer binders designed from agricultural and industrial wastes display interesting and useful mechanical performance. Based on this fact, this research (experimental) focuses on the feasibility of achieving a new GPM with improved mechanical properties and enhanced durability performance against the aggressive sulfuric acid and sulfate attacks. This new ternary blend of GPMs can be achieved by combining waste ceramic tiles (WCT), fly ash (FA) and ground blast furnace slag (GBFS) with appropriate proportions. These GPMs were designed from a high volume of WCT, FA, and GBFS to repair the damaged concretes existing in the construction sectors. Flexural strength, slant shear bond strength, and compatibility of the obtained GPMs were compared with the base or normal concrete (NC) before and after exposure to the aggressive environments. Tests including flexural four-point loading and thermal expansion coefficient were performed. These GPMs were prepared using a low concentration of alkaline activator solution with increasing levels of GBFS and FA replaced by WCT. The results showed that substitution of GBFS and FA by WCT in the GPMs could enhance their bond strength, mechanical characteristics, and durability performance when exposed to aggressive environments. In addition, with the increase in WCT contents from 50 to 70%, the bond strength performance of the GPMs was considerably enhanced under sulfuric acid and sulfate attack. The achieved GPMs were shown to be highly compatible with the concrete substrate and excellent binders for various civil engineering construction applications. It is affirmed that the proposed GPMs can efficiently be used as high-performance materials to repair damaged concrete surfaces.
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Affiliation(s)
- Rayed Alyousef
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (G.F.H.); (H.A.); (A.M.M.)
- Correspondence:
| | - Ahmed Abdel Khalek Ebid
- Structural Engineering and Construction Management, Faculty of Engineering, Future University in Egypt, New Cairo 11835, Egypt;
| | - Ghasan Fahim Huseien
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (G.F.H.); (H.A.); (A.M.M.)
- Department of the Built Environment, College of Design and Engineering, National University of Singapore, Singapore 117566, Singapore
| | - Hossein Mohammadhosseini
- Institute for Smart Infrastructure and Innovative Construction (ISIIC), School of Civil Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia; (H.M.); (S.P.N.)
| | - Hisham Alabduljabbar
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (G.F.H.); (H.A.); (A.M.M.)
| | - Shek Poi Ngian
- Institute for Smart Infrastructure and Innovative Construction (ISIIC), School of Civil Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Malaysia; (H.M.); (S.P.N.)
| | - Abdeliazim Mustafa Mohamed
- Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia; (G.F.H.); (H.A.); (A.M.M.)
- Building and Construction Technology Department, Bayan University, Khartoum 11115, Sudan
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