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C Dos Santos C, Almeida AA, Pulcinelli SH, Santilli CV. Relevance of Specific Surface of Mixed Oxide Derived from Layered Double Hydroxides on the Rheological Properties and Porosity of Cement Pastes. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38837200 DOI: 10.1021/acsami.4c01949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Cement-based products are the synthetic materials most used by humans, with consequent environmental impacts. One strategy that can assist in mitigating the adverse environmental effects of these materials involves the incorporation of multifunctional nanostructured additives. The objective of this work was to demonstrate the efficacy of incorporating mixed oxides (MO) derived from layered double hydroxides (LDH) to control the rheology and porosity of cement-based matrices. Thermal aging of LDH enabled the preparation of MO with different specific surface areas (SSA) for incorporation in different amounts in Portland cement. A low proportion of MO and low SSA increased workability by 22%. In contrast, a high proportion of MO and high SSA led to a 2.4-fold acceleration of cement consolidation and a 36.9% decrease of the porosity of the composite. These features could be attributed to additive-matrix interactions, with the LDH memory effect playing key roles in the cement crystal seed process and in competition for the absorption of free water within the cement paste. Therefore, the unprecedent results obtained suggest that the quantity and SSA of MO are key parameters to fine-tune the paste rheology and structure of hidrated cement. The MO materials showed easy adaptability and excellent potential for use as multifunctional additives in the production of eco-friendly, high-performance cement paste formulations with controllable properties according to the desired application.
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Affiliation(s)
- Caio C Dos Santos
- Chemistry Institute of São Paulo State University (UNESP), Araraquara 14800-900, SP, Brazil
| | - Adriana A Almeida
- Chemistry Institute of São Paulo State University (UNESP), Araraquara 14800-900, SP, Brazil
| | - Sandra H Pulcinelli
- Chemistry Institute of São Paulo State University (UNESP), Araraquara 14800-900, SP, Brazil
| | - Celso V Santilli
- Chemistry Institute of São Paulo State University (UNESP), Araraquara 14800-900, SP, Brazil
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Łuczak B, Sumelka W, Szymkuć W, Jopek H. Self-Healing Mechanical Properties of Selected Roofing Felts. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1204. [PMID: 36770208 PMCID: PMC9919955 DOI: 10.3390/ma16031204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 01/18/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
In this work, roof felts are considered. Special attention is paid to the mechanical properties and self-healing (SH) phenomena under elevated temperatures. The results of the heating and strength tests for the entire range of material work, from the first load to sample breaking, are shown with respect to the angle of reinforcement relative to the longitudinal axis of the sample and different ways of breaking the continuity of the material. The influence that the material thickness and modifiers used for the production of the base material have on the obtained results was also pointed out. The meaningful SH strength is reported-from 5% up to 20% of the strength of the undamaged material-which, in perspective, can provide comprehensive knowledge of the optimal use of roofing felts and its proper mathematical modeling.
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Affiliation(s)
- Bartosz Łuczak
- Institute of Structural Analysis, Poznan University of Technology, Piotrowo 5, 60-965 Poznań, Poland
| | - Wojciech Sumelka
- Institute of Structural Analysis, Poznan University of Technology, Piotrowo 5, 60-965 Poznań, Poland
| | - Wojciech Szymkuć
- Institute of Structural Analysis, Poznan University of Technology, Piotrowo 5, 60-965 Poznań, Poland
| | - Hubert Jopek
- Institute of Applied Mechanics, Poznan University of Technology, Jana Pawła II 24, 60-965 Poznań, Poland
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Coppola L, Bellezze T, Belli A, Bianco A, Blasi E, Cappello M, Caputo D, Chougan M, Coffetti D, Coppola B, Corinaldesi V, D’Amore A, Daniele V, Di Maio L, Di Palma L, Donnini J, Ferrara G, Filippi S, Gastaldi M, Generosi N, Giosuè C, Incarnato L, Lamastra F, Liguori B, Macera L, Maqbool Q, Mascolo MC, Mavilia L, Mazzoli A, Medici F, Mobili A, Montesperelli G, Pia G, Redaelli E, Ruello ML, Scarfato P, Taglieri G, Tittarelli F, Tulliani JM, Valenza A. New Materials and Technologies for Durability and Conservation of Building Heritage. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1190. [PMID: 36770195 PMCID: PMC9921096 DOI: 10.3390/ma16031190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/12/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
The increase in concrete structures' durability is a milestone to improve the sustainability of buildings and infrastructures. In order to ensure a prolonged service life, it is necessary to detect the deterioration of materials by means of monitoring systems aimed at evaluating not only the penetration of aggressive substances into concrete but also the corrosion of carbon-steel reinforcement. Therefore, proper data collection makes it possible to plan suitable restoration works which can be carried out with traditional or innovative techniques and materials. This work focuses on building heritage and it highlights the most recent findings for the conservation and restoration of reinforced concrete structures and masonry buildings.
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Affiliation(s)
- Luigi Coppola
- Department of Engineering and Applied Sciences, University of Bergamo, INSTM R.U., 24044 Dalmine, Italy
| | - Tiziano Bellezze
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Alberto Belli
- Lince Laboratory, Department of Applied Science and Technology, Politecnico di Torino, INSTM R.U., 10129 Turin, Italy
| | - Alessandra Bianco
- Department of Enterprise Engineering “Mario Lucertini”, University of Roma “Tor Vergata”, INSTM R.U., 00133 Rome, Italy
| | - Elisa Blasi
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Miriam Cappello
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
| | - Domenico Caputo
- Department of Chemical, Materials and Industrial Engineering, University of Naples Federico II, 80125 Napoli, Italy
| | - Mehdi Chougan
- Department of Enterprise Engineering “Mario Lucertini”, University of Roma “Tor Vergata”, INSTM R.U., 00133 Rome, Italy
| | - Denny Coffetti
- Department of Engineering and Applied Sciences, University of Bergamo, INSTM R.U., 24044 Dalmine, Italy
| | - Bartolomeo Coppola
- Lince Laboratory, Department of Applied Science and Technology, Politecnico di Torino, INSTM R.U., 10129 Turin, Italy
| | - Valeria Corinaldesi
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Alberto D’Amore
- Department of Engineering, University of Campania “Luigi Vanvitelli”, 81031 Aversa, Italy
| | - Valeria Daniele
- Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67100 L’Aquila, Italy
| | - Luciano Di Maio
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy
| | - Luca Di Palma
- Department of Chemical Engineering Materials & Environment, Sapienza University of Rome, 00184 Rome, Italy
| | - Jacopo Donnini
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Giuseppe Ferrara
- Lince Laboratory, Department of Applied Science and Technology, Politecnico di Torino, INSTM R.U., 10129 Turin, Italy
| | - Sara Filippi
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy
| | - Matteo Gastaldi
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 20133 Milano, Italy
| | - Nicola Generosi
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Chiara Giosuè
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Loredana Incarnato
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy
| | - Francesca Lamastra
- Department of Enterprise Engineering “Mario Lucertini”, University of Roma “Tor Vergata”, INSTM R.U., 00133 Rome, Italy
| | - Barbara Liguori
- Department of Chemical, Materials and Industrial Engineering, University of Naples Federico II, 80125 Napoli, Italy
| | - Ludovico Macera
- Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67100 L’Aquila, Italy
| | - Qaisar Maqbool
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Maria Cristina Mascolo
- Department of Civil and Mechanical Engineering, University of Cassino and Lazio Meridionale, 03043 Cassino, Italy
| | - Letterio Mavilia
- Department of Heritage-Architecture-Urbanism, University of Reggio Calabria “Mediterranea”, 89124 Reggio Calabria, Italy
| | - Alida Mazzoli
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Franco Medici
- Department of Chemical Engineering Materials & Environment, Sapienza University of Rome, 00184 Rome, Italy
| | - Alessandra Mobili
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Giampiero Montesperelli
- Department of Enterprise Engineering “Mario Lucertini”, University of Roma “Tor Vergata”, INSTM R.U., 00133 Rome, Italy
| | - Giorgio Pia
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, 09123 Cagliari, Italy
| | - Elena Redaelli
- Department of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, 20133 Milano, Italy
| | - Maria Letizia Ruello
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Paola Scarfato
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy
| | - Giuliana Taglieri
- Department of Industrial and Information Engineering and Economics, University of L’Aquila, 67100 L’Aquila, Italy
| | - Francesca Tittarelli
- Department of Materials, Environmental Sciences and Urban Planning, Università Politecnica delle Marche, INSTM R.U., 60131 Ancona, Italy
| | - Jean-Marc Tulliani
- Lince Laboratory, Department of Applied Science and Technology, Politecnico di Torino, INSTM R.U., 10129 Turin, Italy
| | - Antonino Valenza
- Department of Engineering, University of Palermo, 90123 Palermo, Italy
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Cai J, Ran Q, Ma Q, Zhang H, Liu K, Zhou Y, Mu S. Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6842. [PMID: 36234183 PMCID: PMC9573076 DOI: 10.3390/ma15196842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/17/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Steel corrosion is major reason of the deterioration of reinforced concrete structures. Decreasing the transportation of erosion ions in concrete is one of effective methods to protect the steel from corrosion. In the present work, a novel nano-hydrophobic admixture is introduced to improve the ion-diffusion properties and the corrosion resistance of reinforced steel. Compared with unmodified concrete, the nano-hydrophobic admixture effectively decreases the water adsorption, water evaporation, and chloride ions transport in a concrete structure, and then improved the concrete's durability. The concrete's water adsorption decreased more than 78%, and the initial corrosion time of reinforced steel is prolonged more than one time by treatment with the nano-hydrophobic admixture. The inhibition penetration of the medium in concrete modified by hydrophobic nanoparticles is the key to provide the protective properties of steel reinforcement from chloride erosion.
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Affiliation(s)
- Jingshun Cai
- College of Materials Science and Engineering, Southeast University, Nanjing 211189, China
- State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science, Nanjing 211103, China
| | - Qianping Ran
- College of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Qi Ma
- State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science, Nanjing 211103, China
- Jiangsu Subote New Materials Co., Ltd., Nanjing 211103, China
| | - Hao Zhang
- State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science, Nanjing 211103, China
- Jiangsu Subote New Materials Co., Ltd., Nanjing 211103, China
| | - Kai Liu
- State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science, Nanjing 211103, China
- Jiangsu Subote New Materials Co., Ltd., Nanjing 211103, China
| | - Yang Zhou
- College of Materials Science and Engineering, Southeast University, Nanjing 211189, China
| | - Song Mu
- State Key Laboratory of High Performance Civil Engineering Materials, Jiangsu Research Institute of Building Science, Nanjing 211103, China
- Jiangsu Subote New Materials Co., Ltd., Nanjing 211103, China
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