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Journal articles on the topic 'Concrete repair materials'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Czarnecki, Lech, Robert Geryło, and Krzysztof Kuczyński. "Concrete Repair Durability." Materials 13, no. 20 (2020): 4535. http://dx.doi.org/10.3390/ma13204535.

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The repairs of building structures are inevitable and indispensable. Repairs are used to restore or maintain the usability of existing facilities, often contributing to the extension of their expected service life, increasing the sustainability of building resources. Given that conservation rules are observed, repairs are also used to save monuments. The concept of repair durability brings to the foreground the durability of the repaired structure (after repair): what service life has been obtained/recovered as a result of the repair. Based on the available data (limited set), a generalised di

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Jassa, Primesh, Hans Beushausen, and Ines Tchetgnia Ngassam. "Alternative patch repair materials for rebar corrosion damage." MATEC Web of Conferences 199 (2018): 07017. http://dx.doi.org/10.1051/matecconf/201819907017.

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One of the most common methods adopted in the rehabilitation of corrosion-damaged concrete is the patch repair procedure. However, in practice this method has shown to often be unreliable as a consequence of the widespread occurrence of shrinkage induced cracking and poor substrate-patch adhesion leading to debonding of the patch repair. From a practical point of view, such failed repair systems essentially restore the repaired concrete back to a deteriorated state. There is a common belief that repairing concrete with specialised proprietary repair materials would guarantee durability. Howeve

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Vaysburd, Alexander. "Specifying Concrete Repair Materials." MATERIAŁY BUDOWLANE 1, no. 3 (2016): 44–47. http://dx.doi.org/10.15199/33.2016.03.13.

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4

Litina, Chrysoula, and Abir Al-Tabbaa. "Development of sustainable concrete repair materials via microencapsulated agents." MATEC Web of Conferences 289 (2019): 11002. http://dx.doi.org/10.1051/matecconf/201928911002.

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Identification of non-structural damage in concrete infrastructure and actuation of preventive repair solutions is an established approach to avoid further structural damages and more expensive repair regimes. However the repair of concrete itself is not infallible with 55% of reported repairs in the EU failing within 5 years of service. Thus the already once repaired concrete structure is then subject to a constant cycle of repeated repair and a cumulative associated life cycle cost. The development of external repair material with self-healing capabilities, can affect a real step-change on t

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5

Bennison, Paul, and Christopher G. Lloyd. "Materials for concrete repair - ‘Innovations’." Construction and Building Materials 1, no. 3 (1987): 117–22. http://dx.doi.org/10.1016/0950-0618(87)90011-0.

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6

Yodsudjai, Wanchai. "Application of Fly Ash-Based Geopolymer for Structural Member and Repair Materials." Advances in Science and Technology 92 (October 2014): 74–83. http://dx.doi.org/10.4028/www.scientific.net/ast.92.74.

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The applications of using fly ash-based geopolymer as a structural member and a repair materials in reinforced concrete structure was conducted. The optimum mix proportion of fly ash-based geopolymer concrete using for structural beam and fly ash-based geopolymer mortar using for repair material were developed. The flexural behavior of fly ash-based geopolymer reinforced concrete and the durability aspect namely the corrosion of steel reinforcement were investigated using the electrical acceleration. For the repair purpose, the fundamental properties; that is, compressive strength, flexural st

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Czarnecki, Lech. "Polymer-Concrete Composites for the repair of concrete structures." MATEC Web of Conferences 199 (2018): 01006. http://dx.doi.org/10.1051/matecconf/201819901006.

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In less than one century concrete has become the most widely used construction material over the world. In less than half of century it is difficult to imagine a concrete totally without polymers. An implantation of polymers into concrete has taken effect in the form of Concrete Polymer Composite: C-PC. Since then (1975) the development of new concrete classes have been ongoing: C-PC = PMC + PCC + PI + PC, where PMC Polymer Modified Concrete (polymer cont. < 1% concrete mass); PCC Polymer Cement Concrete (> 1% concrete mass); PIC Polymer Impregnated Concrete (3-8% concrete mass), PC Poly

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8

Eldho, Choorackal A., Ominda Nanayakkara, Jun Xia, and Stephen W. Jones. "Macrocell Corrosion Formation in Concrete Patch Repairs - A Laboratory Study." Key Engineering Materials 711 (September 2016): 68–75. http://dx.doi.org/10.4028/www.scientific.net/kem.711.68.

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Corrosion of reinforcement steel bars is a major threat to the durability of concrete structures exposed to chloride contaminated environment. Patch repairing is widely practiced in affected structures to avoid further damage due to corrosion. Macrocell formation within the patch repair is identified as one main reason for the failure of patch repairs. In the present study, a group of patch repairing materials is tested for their potential to form macrocell corrosion after repaired in a chloride contaminated environment. The influence of parameters such as level of chloride contamination, type

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FRASSON, B. J., F. PELISSER, and B. V. SILVA. "Concrete crack repair analysis with metakaolin-based geopolymer cement." Revista IBRACON de Estruturas e Materiais 13, no. 2 (2020): 298–313. http://dx.doi.org/10.1590/s1983-41952020000200007.

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Abstract Among the advances in the use of geopolymer cements is their use as repair materials in concrete structures. The objective of this work was to use a geopolymer cement to repair cracks in concrete specimens, observing its mechanical performance and fracture modes. Cubic test specimens were produced and two types of cracks were evaluated as variables. Cracks were induced by steel sheets during concreting. The geopolymer cement paste and an epoxy adhesive, as reference, were used for the repairs. The results showed a 13% decrease in compressive strength for unrepaired concrete, and 3.7%

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Yodsudjai, Wanchai, and Ponpan Setpittayakul. "Influences of Repair Materials Properties on Reinforcement Corrosion-Induced Cover Cracking Time." Advanced Engineering Forum 21 (March 2017): 183–89. http://dx.doi.org/10.4028/www.scientific.net/aef.21.183.

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Cover cracking from reinforcement corrosion is one of the major causes of deteriorations in reinforced concrete structure. If the cover cracking time can be predicted, it would be useful for maintenance planning and budget allocation. The objective of this paper was to find the influence of repair materials on concrete cover cracking time. In this study, the corrosion of concrete reinforcement was accelerated by electricity. Using three types of materials, it was found that the cover cracking time of repair mortar was the shortest followed by those of concrete and non-shrink cement grout respe

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11

Al-Saidy, A. H. "Performance of Cement-Based Patch Repair Materials in Plain and Reinforced Concrete Members." Journal of Engineering Research [TJER] 13, no. 2 (2016): 160. http://dx.doi.org/10.24200/tjer.vol13iss2pp160-171.

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Structural elements such as beams, slabs, and columns may require strengthening or repair during their service life. Different repair materials (RMs) are available and it is usually difficult to choose the best ones, especially when considering the cost of such materials. This paper presents the results of an experimental investigation of patch RMs on plain concrete prisms as well as on reinforced concrete beams. Three cement-based RMs available in the market with different mechanical properties and an ordinary Portland cement (OPC) mix produced in the lab were used in the study. Damage was in

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12

Khan, Mohammad Iqbal, Tarek H. Almusallam, Abdulaziz a. Almosa, Saleh H. Alsayed, and Yousef A. Al Salloum. "Evaluation and Performance of Repair Materials for Rehabilitation of Concrete Structures." Advanced Materials Research 163-167 (December 2010): 3820–25. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3820.

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The most common form of rehabilitation for a deteriorated structure is to remove the deteriorated concrete and replace it with a new material, thus increasing the design life of the structure. Good adhesion of a repair material to concrete is of vital importance in the application and performance of concrete repairs. A major factor that influences the durability of the repair is the bond strength between the new material and the substrate. In this investigation, the most common repair materials, produced by international reputed manufactures, available in the local market were selected from ce

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13

Cabrera, JG, and AS Al-Hasan. "Performance properties of concrete repair materials." Construction and Building Materials 11, no. 5-6 (1997): 283–90. http://dx.doi.org/10.1016/s0950-0618(97)00049-4.

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14

Garbacz, A., L. Courard, and B. Bissonnette. "A surface engineering approach applicable to concrete repair engineering." Bulletin of the Polish Academy of Sciences: Technical Sciences 61, no. 1 (2013): 73–84. http://dx.doi.org/10.2478/bpasts-2013-0006.

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Abstract The objective of the paper is to analyze the effect of substrate roughness and superficial microcraking upon adhesion of repair systems using concrete surface engineering approach. The results presented in this paper have been obtained within the framework of research projects performed to develop a better understanding of the factors affecting the adhesion of repair materials through a surface engineering approach. Based on the results of investigations, the authors showed that the durability and quality of concrete repairs depend to a large degree on the characteristics of the subst

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Maltais, Alexandrine, Nikola Petrov, Michel Thibault, and Benoit Bissonnette. "UHPFRC for concrete repair." MATEC Web of Conferences 199 (2018): 07007. http://dx.doi.org/10.1051/matecconf/201819907007.

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As part of the St. Lawrence Seaway lock maintenance, the current practice is to perform concrete repairs entirely with reinforced concrete, using either ordinary concrete or high performance concrete (HPC) mixtures. However, with the recent advances in the field of ultra-high performance fiber-reinforced concrete (UHPFRC), the use of this new material is considered in view of improving the overall performance of repairs. The goal is to implement repairs capable of dissipating a lot of energy before breaking when a ship hits a concrete lock wall. Numerous rehabilitation materials and methods ha

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16

Banthia, N., R. Gupta, and S. Mindess. "Development of fiber reinforced concrete repair materials." Canadian Journal of Civil Engineering 33, no. 2 (2006): 126–33. http://dx.doi.org/10.1139/l05-093.

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Early age shrinkage cracking remains a critical concern for cement-based repairs and overlays. Fibers mitigate such cracking, but no standardized technique of assessing the performance of a given fiber exists. Recently, a novel technique of making such an assessment was developed at The University of British Columbia (UBC). In this test method, currently being balloted through the ASTM, an overlay of fiber reinforced concrete (FRC) material to be tested is cast directly on a fully matured sub-base with protuberances, and the entire assembly is subjected to controlled drying. Cracking in the ov

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17

Wood, Jonathan G. M., and R. Ashley Johnson. "Concrete repair." Construction and Building Materials 4, no. 1 (1990): 29–31. http://dx.doi.org/10.1016/0950-0618(90)90018-v.

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18

Wang, Penggang, Maopeng Jiao, Chunhong Hu, et al. "Research on Bonding and Shrinkage Properties of SHCC-Repaired Concrete Beams." Materials 13, no. 7 (2020): 1757. http://dx.doi.org/10.3390/ma13071757.

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Traditional cement-based repair materials are brittle and prone to cracking. The failure of more than half of repaired concrete structure is due to the re-cracking of the repair material itself or delamination and peeling from the concrete matrix. Thus, a second repair is required in a short period, increasing the maintenance cost. To reduce cracking, Strain Hardening Cement-based Composite (SHCC), with strain hardening and multiple cracking property, is prepared to study the influence of interface roughness and repair layer thickness on the shrinkage, cracking and delamination modes of SHCC-r

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19

Helal, Rawnaq Abbas, Haider M. Al-Baghdadi, and Nabeel Hasan Ali Al-Salim. "Using Mortar Infiltrated Fiber Concrete as Repairing Materials for Flat Slabs." Civil Engineering Journal 6, no. 10 (2020): 1956–73. http://dx.doi.org/10.28991/cej-2020-03091595.

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This search aims to study and test the effect of using a new material (mortar infiltrated fiber concrete) as repair material in crucial regions that need a special type of repair like (deck of bridges, pavements, and defense structures). This work consisted of three stages: the first stage; testing the engineering properties of slurry infiltrated fiber concrete (compressive, splitting tensile, flexural and bond strengths), by using different types of fibers (End hooked steel fiber, Micro steel fiber, Polypropylene fiber, and Synthetic fiber), in five different types of mortar infiltrated fiber

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20

Junianto, Arif, Rifqi Maulana Ramadhan, Jantayu Padma Utari, Kusdiyono Kusdiyono, Dadiyono Amat Pawiro, and Junaidi Junaidi. "KAJIAN PERBAIKAN STRUKTUR PERKERASAN KAKU MENGGUNAKAN METODE PRESSURE GROUTING DENGAN MATERIAL POLYURETHANE DAN EPOXY (Studi Kasus : Ruas Jalan Patriot – Perintis Kemerdekaan Kota Pekalongan)." Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil 24, no. 1 (2019): 19. http://dx.doi.org/10.32497/wahanats.v23i1.1604.

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Today the implementation of road infrastructure development using concrete pavement is experiencing rapid development because it can serve heavy and heavy traffic loads. But there are some problems that often arise in the use of concrete for pavement, causing damage (cracks). Repair of concrete cracks using pressure grouting method is one solution that can be used to improve the strength of concrete. This study discusses the comparison of the effectiveness of using polyurethane and epoxy materials in an effort to improve the rigid pavement structure. The research method used was to carry out r

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21

Jonbi, Jonbi, A. R. Indra Tjahjani, Nuryani Tinumbia, A. M. Pattinaja, and Bambang S. Haryono. "Repair of rigid pavement using micro concrete material." MATEC Web of Conferences 195 (2018): 01014. http://dx.doi.org/10.1051/matecconf/201819501014.

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Rapid setting materials, especially for concrete repairs made on major arteries such as toll roads which must withstand heavy traffic. Several manufacturers of construction chemicals have been producing various types of rapid setting materials designed for use in repairing such toll roads. However, the existing toll road repair materials have not demonstrated satisfactory performance when applied in the field. This study modified micro concrete materials by adding Polycarboxylate Ether (PCE) and Polypropylene Fiber (PPF) at the time of mixing existing rapid setting materials. It then tested fl

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22

Meng, Tao, Songsong Lian, Xiufen Yang, and Ruitan Meng. "Effects of nano-modified polymer cement-based materials on the bending behavior of repaired concrete beams." Nanotechnology Reviews 10, no. 1 (2021): 292–303. http://dx.doi.org/10.1515/ntrev-2021-0024.

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Abstract As the use time of concrete structures increases, defects such as concrete cracks, corrosion and exposure of steel bars gradually appear, resulting in additional repair of concrete structures to increase their durability and life. In this article, the effects of nano-modified polymer cement-based materials as repair material on the bending behavior of repaired concrete beams were studied. Based on the moment, deflection, strain, surface quality and cracking development monitor of repaired concrete beams, the bending behavior of repaired beams with polymer, nano-modified polymer and fi

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23

Petcherdchoo, Aruz. "Probability-Based Sensitivity of Service Life of Chloride-Attacked Concrete Structures with Multiple Cover Concrete Repairs." Advances in Civil Engineering 2018 (December 4, 2018): 1–17. http://dx.doi.org/10.1155/2018/4525646.

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This paper presents probabilistic and sensitivity analysis of service life (or time to repairs) for attaining corrosion-free condition of concrete structures under chloride attack. Four groups of probabilistic parameters are determined, i.e., (1) time-dependent chloride content, (2) mean and median of corrosion initiation and repair application times, (3) percent confidence of repairs, and (4) total expected number of repairs. To achieve this, this paper proposes a computational approach and probabilistic data. The proposed approach, which combined the Latin Hypercube technique with the Crank–

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Wood, J. G. M., E. S. King, and D. S. Leek. "Concrete repair materials for effective structural applications." Construction and Building Materials 4, no. 2 (1990): 64–67. http://dx.doi.org/10.1016/0950-0618(90)90002-i.

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Morgan, D. R. "Compatibility of concrete repair materials and systems." Construction and Building Materials 10, no. 1 (1996): 57–67. http://dx.doi.org/10.1016/0950-0618(95)00060-7.

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Bissonnette, Benoît, Samy-Joseph Essalik, Charles Lamothe, et al. "Characterization tools for shrinkage-compensating repair materials." MATEC Web of Conferences 199 (2018): 07002. http://dx.doi.org/10.1051/matecconf/201819907002.

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Achievement of dimensional compatibility is one of the most important considerations in order to consistently achieve lasting repair works that do not undergo harmful cracking. Drying shrinkage of Portland cement concrete is generally inevitable and, although its magnitude can be reduced by optimizing or modifying the composition parameters, it remains significantly larger than its ultimate tensile strain. Conversely, the use of shrinkage-compensating concrete (ShCC) may allow to achieve a zero-dimensional balance with respect to drying shrinkage, through the use of a mineral expansive agent.

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Zhou, Jian, Guang Ye, and Klaas van Breugel. "Cement hydration and microstructure in concrete repairs with cementitious repair materials." Construction and Building Materials 112 (June 2016): 765–72. http://dx.doi.org/10.1016/j.conbuildmat.2016.02.203.

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Kim, Tae-Kyun, and Jong-Sup Park. "Experimental Evaluation of the Durability of Concrete Repair Materials." Applied Sciences 11, no. 5 (2021): 2303. http://dx.doi.org/10.3390/app11052303.

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Concrete structures crack as they age due to deterioration phenomena such as carbonation, chloride attack, and freeze–thaw. Cracks may also occur due to corrosion of steel reinforcements, which can rapidly degrade the structural integrity. Therefore, this study uses strength and durability tests to examine the materials used to repair cracks in concrete; namely, epoxy, impregnant, and epoxy/impregnant. The results show that epoxy has the greatest strength; epoxy/impregnant is most effective for repairing carbonation damage; impregnant is most effective for repairing chloride damage; epoxy and

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Lee, Ming Ju, Ming Gin Lee, Yi Shuo Huang, and Mang Tia. "Constructability and Performance of Prospective Materials for Repair of Airfield Damaged Concrete." Advanced Materials Research 123-125 (August 2010): 407–10. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.407.

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The surfaces of concrete airfield aprons and runways deteriorate for a number of reasons, such as surface scaling due to freeze/thaw, impact loading, hot weather, de-icing fluids, deterioration of joints, jet fuel chemicals and so on. A limited field and laboratory study was performed to investigate the constructability and performance of prospective materials for repair of airfield concrete damaged by exposure to heat and oil. Two prospective coating materials and six prospective inlay materials were field-testes at the Base in USA Kansas, and were evaluated in the laboratory at the Universi

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Lee, Su-Jin, Hyung-Jin Shin, and Chan-Gi Park. "Strength and Durability of Hybrid Fiber-Reinforced Latex-Modified Rapid-Set Cement Preplaced Concrete for Emergency Concrete Pavement Repair." Applied Sciences 11, no. 10 (2021): 4595. http://dx.doi.org/10.3390/app11104595.

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The benefits of using reinforcing fibers in latex-modified rapid-set cement preplaced concrete for emergency pavement repairs were examined in terms of strength, permeability, and durability as functions of the type of fiber. Single-type fibers, including jute, poly (vinyl alcohol) (PVA), and nylon fibers, as well as hybrid fiber mixtures prepared with two of the aforementioned fibers at a 1:1 weight ratio, were evaluated. Fibers were incorporated into the concrete mixture at 1.2 kg/m3. A vibratory press compactor that simulates roller compaction was used to increase compaction and densificati

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Zdanowicz, Łukasz, Szymon Seręga, Marcin Tekieli, and Arkadiusz Kwiecień. "Polymer Flexible Joint as a Repair Method of Concrete Elements: Flexural Testing and Numerical Analysis." Materials 13, no. 24 (2020): 5732. http://dx.doi.org/10.3390/ma13245732.

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Polymer Flexible Joint (PFJ) is a method for repairs of concrete elements, which enables carrying loads and large deformations effectively. This article presents the possibility of applying PFJ on beams subjected to bending and describes the influence of such joints on concrete elements. An experimental investigation was conducted to determine the behavior of concrete in a four-point bending test. The research program included flexural tests of plain concrete elements with a notch, as well as tests of elements which were repaired with PFJ after failure. Based on the experimental results, the n

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Бондарь, Иван, Салман Аль Дулайми, Алдекеева Динара, and Токжан Куатбаева. "REINFORCEMENT OF REINFORCED CONCRETE STRUCTURES WITH COMPOSITE MATERIALS." Вестник КазАТК 116, no. 1 (2021): 17–24. http://dx.doi.org/10.52167/1609-1817-2021-116-1-17-24.

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Recently, in the Republic of Kazakhstan, as well as in other countries of theAsian region, it is becoming more and more urgent to strengthen the operated reinforcedconcrete structures with external reinforcement systems with carbon materials during thereconstruction of any engineering structures. In order to eliminate the consequences of concretedestruction and reinforcement corrosion as a result of long-term exposure to natural factors andaggressive environments, carbon fiber external reinforcement systems are widely used during the operation of structures designed to repair and strengthen th

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Warid Wazien, A. Z., Mohd Mustafa Al Bakri Abdullah, Rafiza Abd Razak, M. A. Z. Mohd Remy Rozainy, Muhammad Faheem Mohd Tahir, and Kamarudin Hussin. "Potential of Geopolymer Mortar as Concrete Repairing Materials." Materials Science Forum 857 (May 2016): 382–87. http://dx.doi.org/10.4028/www.scientific.net/msf.857.382.

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Geopolymer mortars which produced by the reaction of fly ash with an alkaline activator and added with sand is going to be developed for use as concrete repair material. Thus, the typical and standard requirement as repair material is reviewed. This paper also discusses the efficiency of geopolymer mortar which is mainly dependent on the excellent bond between the sand and geopolymer binder. Based on the determined formulation of geopolymer mortar, the standard for testing is determined making it potentially becoming as an excellent repair materials.

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Wilson, Cameron, and W. Jason Weiss. "Improving the Durability of High Early Strength (HES) Concrete Patching Materials for Concrete Pavements." Transportation Research Record: Journal of the Transportation Research Board 2674, no. 8 (2020): 12–23. http://dx.doi.org/10.1177/0361198120917374.

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High early strength (HES) concrete patching materials are increasingly used to repair damaged pavements. The use of HES concrete enables the repaired pavement to be opened to traffic shortly after the repair has been installed; for example, opening pavements to traffic 4–6 h after the concrete is placed is becoming more common. HES concrete mixtures are typically designed with a low water-to-cement ratio and a high cement content; they contain accelerating admixtures and limited supplementary cementitious materials. As a result, these HES patches may be susceptible to self-desiccation, causing

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Robery, Peter, and Mr John Shaw. "Materials for the repair and protection of concrete." Construction and Building Materials 11, no. 5-6 (1997): 275–81. http://dx.doi.org/10.1016/s0950-0618(97)00048-2.

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Krishnamoorthy, Renga Rao, Thevaneyan Krishta David, Noor Azman Bin Mastor, and Kuganeswaran Nadarasa. "Repair of Deteriorating Pavement Using Recycle Concrete Materials." Procedia Engineering 142 (2016): 371–82. http://dx.doi.org/10.1016/j.proeng.2016.02.064.

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Minoru, Kunieda, Kamada Toshiro, Uchida Yuichi, and Rokugo Keitetsu. "Evaluation of Bond Properties in Concrete Repair Materials." Journal of Materials in Civil Engineering 13, no. 2 (2001): 98–105. http://dx.doi.org/10.1061/(asce)0899-1561(2001)13:2(98).

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Clímaco, João C. T. S., and Soraia R. A. Garcia. "Bonding Efficiency of Repair Materials for Concrete Structures." IABSE Symposium Report 86, no. 8 (2002): 104–11. http://dx.doi.org/10.2749/222137802796336784.

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Bester, Jannes, and Deon Kruger. "Concrete Crack Repair with Polymer Modified Mortars: The Status Quo in the South African Construction Industry and the Way Forward." Advanced Materials Research 1129 (November 2015): 422–28. http://dx.doi.org/10.4028/www.scientific.net/amr.1129.422.

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In recent years, concrete repair has become an integral part of the construction industry. With the vast quantity of concrete used in the South African construction industry over the past 100 years, one can expect an increase in repair and rehabilitation requirements during the extended lifecycle of exposed concrete structures. Crack repair, re-profiling of spalled areas and surface sealing with polymer related materials forms the bulk of such repair and rehabilitation operations. Due to the complexity of these projects and the variety of professionals and other stakeholders involved from the

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Luković, Mladena, Branko Šavija, Guang Ye, Erik Schlangen, and Klaas van Breugel. "Failure Modes in Concrete Repair Systems due to Ongoing Corrosion." Advances in Materials Science and Engineering 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/9649187.

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Corrosion of steel reinforcement is the main cause of deterioration in reinforced concrete structures. It can result in cracking and spalling of the concrete cover. After the damaged cover is repaired, reinforcement corrosion might continue and even accelerate. While the development of the corrosion cell is difficult to control, the damage can be possibly delayed and controlled by use of a suitable repair material. The lattice fracture model is used in this paper to investigate the performance of strain hardening cementitious composite (SHCC) in concrete repair systems exposed to ongoing corro

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Keprdová, Šárka, Jiří Bydžovský, and Nikol Žižková. "Development of Lightweight Repair Materials Applicable to Re-Profiling to the Lightweight Concrete." Advanced Materials Research 1122 (August 2015): 135–38. http://dx.doi.org/10.4028/www.scientific.net/amr.1122.135.

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The paper discusses the development and study of the properties of lightweight repair materials applicable to the re-profiling of lightweight concrete. The main objective in the development of the lightweight repair materials to achieve the best properties of matter at maximum lightness and ease of application on re-profiled construction. The basic formula has been derived from previously produced of repair materials applicable for re-profiling of concrete and reinforced concrete structures.

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Harrer, Ann, and Paul Gaudette. "Challenges of preserving modernist concrete." MATEC Web of Conferences 289 (2019): 07003. http://dx.doi.org/10.1051/matecconf/201928907003.

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Exposed architectural concrete is often a defining characteristic of modernist structures. Concrete, like other construction materials, eventually deteriorates over time and with exposure to environmental factors. With any historic structure, challenges exist in the development of an appropriately sensitive rehabilitation strategy to address existing distress, including structural repairs, use of compatible materials, development of repair procedures without unnecessary removal of historic material, and sustainable practices, as well as to meet the requirements of governing standards or jurisd

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Bester, Jannes, and Deon Kruger. "Concrete Crack Repair with Polymer Modified Materials - The Need for Specialized Training of Applicators, Suppliers, Consultants and Clients." Advanced Materials Research 1129 (November 2015): 409–15. http://dx.doi.org/10.4028/www.scientific.net/amr.1129.409.

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Concrete repair with polymer modified materials has become an integral part of the civil construction industry. Often, under-performance or even failure of such repairs can be attributed to the incorrect selection, preparation, application or care of the repair process. The root cause of this is basically the lack of adequate knowledge and understanding of the repair material and the repair process by the applicator, the supplier, the consultant and the client. Unfortunately, it seems that there is very little done in terms of the training of these four stakeholders. Decisions regarding repair

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INOUE, Kazumasa, Kenro MITSUI, Kunio YANAGIBASHI, Yosaku IKEO, and Tetsushi MIYOSHI. "PREDICTION OF PROLONGED SERVICE LIFE OF CONCRETE AFTER REPAIR WITH REPAIR MATERIALS." Journal of Structural and Construction Engineering (Transactions of AIJ) 70, no. 592 (2005): 7–12. http://dx.doi.org/10.3130/aijs.70.7_5.

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Kuo, Wen-Ten, Ming-Yao Liu, and Chuen-Ul Juang. "Bonding Behavior of Repair Material Using Fly-Ash/Ground Granulated Blast Furnace Slag-Based Geopolymer." Materials 12, no. 10 (2019): 1697. http://dx.doi.org/10.3390/ma12101697.

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Fly ash/ground-granulated blast-furnace slag geopolymer (FGG) contains reaction products with a high volume of Ca, hydrated CaSiO3, and hydrated AlCaSiO3. These compounds enable the filling of large air voids in a structure, thus increasing compactness. Therefore, FGG is a more effective repair material to stabilize structures and can function as a sealing and insulating layer. This study used FGG as the repair material for concrete with ground-granulated blast-furnace slag (GGBFS) as the main cement material. The bond strength of the repair was discussed from different aspects, including for

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Al-Osta, Mohammed A. "Exploitation of Ultrahigh-Performance Fibre-Reinforced Concrete for the Strengthening of Concrete Structural Members." Advances in Civil Engineering 2018 (2018): 1–12. http://dx.doi.org/10.1155/2018/8678124.

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The repair and strengthening of reinforced concrete members are very important due to several factors, including unexpected increases in load levels and/or the damaging impact of aggressive environmental conditions on structural concrete members. Many researchers have turned to using materials for the repair and strengthening of damaged structures or the construction of new concrete structural members. Ultrahigh-performance fibre-reinforced concrete (UHPFRC), characterized by superior structural and durability performance in aggressive environmental conditions, is one of the materials that hav

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Zawal, Daniel, Krzysztof Górski, and Agnieszka Dobosz. "USAGE OF CALCIUM CARBONATE BIODEPOSITION IN MODIFICATION OF CEMENTITIOUS COMPOSITES." Zeszyty Naukowe Uniwersytetu Zielonogórskiego / Inżynieria Środowiska 172, no. 52 (2018): 11–22. http://dx.doi.org/10.5604/01.3001.0013.0261.

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Biodeterioration of construction materials is an undesired phenomenon, generating high costs of constraction repairs. On the other hand, occurrence of some bacteria can affect prevention and self repair of fractures formed in concrete. Biodeposition is an effective solution for increasing compressive strength of concrete, extending durability of concrete constructions and renovating limestone elements in facades of historic buildings.

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Deng, Jun, Tonghua Liu, Weizhi Xie, and Wei Lu. "Study on Repaired Earthquake-Damaged Bridge Piers under Seismic Load." Advances in Materials Science and Engineering 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/295392.

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The concrete bridge pier damaged during earthquakes need be repaired to meet the design standards. Steel tube as a traditional material or FRP as a novel material has become popular to repair the damaged reinforced concrete (RC) bridge piers. In this paper, experimental and finite element (FE) studies are employed to analyze the confinement effectiveness of the different repair materials. The FE method was used to calculate the hysteretic behavior of three predamaged circle RC bridge piers repaired with steel tube, basalt fiber reinforced polymer (BFRP), and carbon fiber reinforced polymer (CF

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Ding, Hua, Ruili Xiang, Zhi Min Song, and Zi Li Yu. "Polymer/Inorganic Composite Materials for Quick Repair of Cement Concrete Pavement." Materials Science Forum 510-511 (March 2006): 614–17. http://dx.doi.org/10.4028/www.scientific.net/msf.510-511.614.

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Composites of polymer/inorganic materials have comprehensive properties and they are widely used in many fields of the industry. In the present work, methacrylate copolymer/silica composite materials were prepared by mixing and blending process. The mechanical properties such as flexural, compressive strength of yield composite were obtained as the function of mixing ratio. The optimized composite materials have been used as quick repair materials in the Chengyu (Chengdu to Chongqing) highway, southwest China. The results showed that the composite material was better than cement concrete rehab

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Wang, Hong Song, Wei Wang, Rui Wang, Wen Bin Wang, Lei Li, and Qian Tian. "Carbonation of Surface Protected Concrete with Silicone Material." Applied Mechanics and Materials 584-586 (July 2014): 883–86. http://dx.doi.org/10.4028/www.scientific.net/amm.584-586.883.

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Concrete structures are exposed to carbonation that may cause rapid decay, shortening their service life and raising maintenance and repair costs. Carbonation lowers the alkalinity of the concrete depassivating the steel reinforcement. The prescriptive methodology is not a guarantee to obtain the desired service lives of 50 or 100 years. Surface treatment is commonly used to improve the resistance of concrete to carbonation. Using the silicone materials to an immersion treatment can effectively block the invasion of harmful substances,the carbonation of concretes with surface protection with s

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