{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T01:44:30Z","timestamp":1767923070481,"version":"3.49.0"},"reference-count":59,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,12,1]],"date-time":"2021-12-01T00:00:00Z","timestamp":1638316800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UIBD\/150874\/2021"],"award-info":[{"award-number":["UIBD\/150874\/2021"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100010434","name":"\u201cla Caixa\u201d Foundation","doi-asserted-by":"publisher","award":["PV20-00072"],"award-info":[{"award-number":["PV20-00072"]}],"id":[{"id":"10.13039\/100010434","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/04029\/2020"],"award-info":[{"award-number":["UIDB\/04029\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100006111","name":"Minist\u00e9rio da Ci\u00eancia, Tecnologia e Ensino Superior","doi-asserted-by":"publisher","award":["UIDB\/04029\/2020"],"award-info":[{"award-number":["UIDB\/04029\/2020"]}],"id":[{"id":"10.13039\/501100006111","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Fibers"],"abstract":"<jats:p>The purpose of this study is to explore Artificial Neural Networks (ANNs) to predict the compressive and tensile strengths of natural fibre-reinforced Compressed Earth Blocks (CEBs). To this end, a database was created by collecting data from the available literature. Data relating to 332 specimens (Database 1) were used for the prediction of the compressive strength (ANN1), and, due to the lack of some information, those relating to 130 specimens (Database 2) were used for the prediction of the tensile strength (ANN2). The developed tools showed high accuracy, i.e., correlation coefficients (R-value) equal to 0.97 for ANN1 and 0.91 for ANN2. Such promising results prompt their applicability for the design and orientation of experimental campaigns and support numerical investigations.<\/jats:p>","DOI":"10.3390\/fib9120078","type":"journal-article","created":{"date-parts":[[2021,11,30]],"date-time":"2021-11-30T23:22:28Z","timestamp":1638314548000},"page":"78","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Artificial Neural Networks to Predict the Mechanical Properties of Natural Fibre-Reinforced Compressed Earth Blocks (CEBs)"],"prefix":"10.3390","volume":"9","author":[{"given":"Chiara","family":"Turco","sequence":"first","affiliation":[{"name":"ISISE, Department of Civil Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9928-3036","authenticated-orcid":false,"given":"Marco Francesco","family":"Funari","sequence":"additional","affiliation":[{"name":"ISISE, Department of Civil Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"given":"Elisabete","family":"Teixeira","sequence":"additional","affiliation":[{"name":"ISISE, Department of Civil Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2973-8175","authenticated-orcid":false,"given":"Ricardo","family":"Mateus","sequence":"additional","affiliation":[{"name":"ISISE, Department of Civil Engineering, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,1]]},"reference":[{"key":"ref_1","unstructured":"Rigassi, V. (1985). Compressed Earth Blocks: Manual of Production, GATE."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Minke, G. (2009). Building with Earth: Design and Technology of a Sustainable Architecture, Birkhauser. [2nd ed.].","DOI":"10.1515\/9783034612623"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1016\/j.conbuildmat.2015.12.024","article-title":"Optimizing thermal and mechanical performance of compressed earth blocks (CEB)","volume":"104","author":"Jelidi","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Teixeira, E., Machado, G., Junior, A.P., Guarnier, C., Fernandes, J., Silva, S., and Mateus, R. (2020). Mechanical and Thermal Performance Characterisation of Compressed Earth Blocks. Energies, 13.","DOI":"10.3390\/en13112978"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"118286","DOI":"10.1016\/j.jclepro.2019.118286","article-title":"Life cycle analysis of environmental impacts of earthen materials in the Portuguese context: Rammed earth and compressed earth blocks","volume":"241","author":"Fernandes","year":"2019","journal-title":"J. Clean. Prod."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Mateus, R., Fernandes, J., and Teixeira, E.R. (2020). Environmental Life Cycle Analysis of Earthen Building Materials, Elsevier BV.","DOI":"10.1016\/B978-0-12-803581-8.11459-6"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"119346","DOI":"10.1016\/j.conbuildmat.2020.119346","article-title":"Application of agro and non-agro waste materials for unfired earth blocks construction: A review","volume":"254","author":"Jannat","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"719","DOI":"10.1016\/j.conbuildmat.2016.02.119","article-title":"Plant aggregates and fibers in earth construction materials: A review","volume":"111","author":"Aubert","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"253","DOI":"10.1080\/09613218.2014.933293","article-title":"Performance characteristics of enhanced soil blocks: A quantitative review","volume":"43","author":"Danso","year":"2014","journal-title":"Build. Res. Inf."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"512","DOI":"10.1016\/j.conbuildmat.2011.10.054","article-title":"Earth construction: Lessons from the past for future eco-efficient construction","volume":"29","author":"Jalali","year":"2012","journal-title":"Constr. Build. Mater."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1016\/j.conbuildmat.2016.01.046","article-title":"Fracture behaviour of a fibre reinforced earthen material under static and impact flexural loading","volume":"109","author":"Aymerich","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"839","DOI":"10.1007\/s11709-020-0630-7","article-title":"Critical review of recent development in fiber reinforced adobe bricks for sustainable construction","volume":"14","author":"Salih","year":"2020","journal-title":"Front. Struct. Civ. Eng."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Mohajerani, A., Hui, S.-Q., Mirzababaei, M., Arulrajah, A., Horpibulsuk, S., Abdul Kadir, A., Rahman, M.T., and Maghool, F. (2019). Amazing Types, Properties, and Applications of Fibres in Construction Materials. Materials, 12.","DOI":"10.3390\/ma12162513"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"6493","DOI":"10.1016\/j.matpr.2020.11.377","article-title":"Adobe blocks reinforced with natural fibres: A review","volume":"45","author":"Ramakrishnan","year":"2021","journal-title":"Mater. Today Proc."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"125140","DOI":"10.1016\/j.conbuildmat.2021.125140","article-title":"Optimisation of Compressed Earth Blocks (CEBs) using natural origin materials: A systematic literature review","volume":"309","author":"Turco","year":"2021","journal-title":"Constr. Build. Mater."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"2332","DOI":"10.3390\/ma8052332","article-title":"How Properties of Kenaf Fibers from Burkina Faso Contribute to the Reinforcement of Earth Blocks","volume":"8","author":"Millogo","year":"2015","journal-title":"Materials"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"785","DOI":"10.1007\/s12205-017-1968-9","article-title":"Influence of the kenaf fiber length on the mechanical and thermal properties of Compressed Earth Blocks (CEB)","volume":"22","author":"Laibi","year":"2017","journal-title":"KSCE J. Civ. Eng."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"797","DOI":"10.1016\/j.conbuildmat.2015.10.069","article-title":"Physical, mechanical and durability properties of soil building blocks reinforced with natural fibres","volume":"101","author":"Danso","year":"2015","journal-title":"Constr. Build. Mater."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"145","DOI":"10.4236\/ojcm.2018.84012","article-title":"Compressive and Flexural Strengths of Cement Stabilized Earth Bricks Reinforced with Treated and Untreated Pineapple Leaves Fibres","volume":"8","author":"Vodounon","year":"2018","journal-title":"Open J. Compos. Mater."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"110","DOI":"10.1617\/s11527-021-01703-z","article-title":"Experimental characterization of natural fibre\u2013soil interaction: Lessons for earthen construction","volume":"54","author":"Vincenzini","year":"2021","journal-title":"Mater. Struct."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"314","DOI":"10.1016\/j.conbuildmat.2015.03.039","article-title":"Effect of fibre aspect ratio on mechanical properties of soil building blocks","volume":"83","author":"Danso","year":"2015","journal-title":"Constr. Build. Mater."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"282","DOI":"10.3390\/buildings5010282","article-title":"Effect of Banana Fibers on the Compressive and Flexural Strength of Compressed Earth Blocks","volume":"5","author":"Mostafa","year":"2015","journal-title":"Buildings"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"52","DOI":"10.1016\/j.conbuildmat.2015.12.007","article-title":"The mechanical and physical properties of compressed earth block stabilized with lime and filled with untreated and alkali-treated date palm fibers","volume":"104","author":"Taallah","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"04017244","DOI":"10.1061\/(ASCE)MT.1943-5533.0002096","article-title":"Effect of Plant Aggregates on Mechanical Properties of Earth Bricks","volume":"29","author":"Aubert","year":"2017","journal-title":"J. Mater. Civ. Eng."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"4049","DOI":"10.1016\/j.matpr.2020.07.539","article-title":"Effect of Alfa fibers on the mechanical and thermal properties of compacted earth bricks","volume":"37","author":"Ajouguim","year":"2021","journal-title":"Mater. Today Proc."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"102148","DOI":"10.1016\/j.jobe.2021.102148","article-title":"Improving the thermal comfort in hot region through the design of walls made of compressed earth blocks: An experimental investigation","volume":"38","author":"Hema","year":"2021","journal-title":"J. Build. Eng."},{"key":"ref_27","first-page":"149","article-title":"Courard, Thermophysical and mechanical properties of compressed earth blocks containing fibres: By-product of okra plant and polymer waste, WIT Trans","volume":"195","author":"Nshimiyimana","year":"2020","journal-title":"Built. Environ."},{"key":"ref_28","first-page":"795","article-title":"Compressed earth block reinforced with coconut fibers and stabilized with aloe vera and lime","volume":"19","year":"2021","journal-title":"J. Eng. Des. Technol."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"3835","DOI":"10.1177\/0021998317693293","article-title":"Mechanisms by which the inclusion of natural fibres enhance the properties of soil blocks for construction","volume":"51","author":"Danso","year":"2017","journal-title":"J. Compos. Mater."},{"key":"ref_30","unstructured":"Hagan, M.T., Dcmuth, H.B., and Beale, M. (1996). Neural Network Design, PWS Publishing Co."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"849","DOI":"10.1016\/S0141-0296(03)00004-X","article-title":"Prediction of concrete strength using artificial neural networks","volume":"25","author":"Lee","year":"2003","journal-title":"Eng. Struct."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1279","DOI":"10.1016\/j.conbuildmat.2008.07.021","article-title":"Prediction of long-term effects of GGBFS on compressive strength of concrete by artificial neural networks and fuzzy logic","volume":"23","author":"Severcan","year":"2009","journal-title":"Constr. Build. Mater."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"74","DOI":"10.1016\/j.commatsci.2007.06.011","article-title":"Prediction of mechanical properties of recycled aggregate concretes containing silica fume using artificial neural networks and fuzzy logic","volume":"42","year":"2008","journal-title":"Comput. Mater. Sci."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"214","DOI":"10.1016\/j.conbuildmat.2017.02.006","article-title":"Rapid soil classification using artificial neural networks for use in constructing compressed earth blocks","volume":"138","author":"Sitton","year":"2017","journal-title":"Constr. Build. Mater."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"111731","DOI":"10.1016\/j.compstruct.2019.111731","article-title":"Compressive strength of earth block masonry: Estimation based on neural networks and adaptive network-based fuzzy inference system","volume":"235","author":"Lan","year":"2020","journal-title":"Compos. Struct."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"42","DOI":"10.1016\/j.cemconres.2018.04.007","article-title":"Computational design optimization of concrete mixtures: A review","volume":"109","author":"DeRousseau","year":"2018","journal-title":"Cem. Concr. Res."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1016\/j.engstruct.2012.09.029","article-title":"Compressive strength of masonry made of clay bricks and cement mortar: Estimation based on Neural Networks and Fuzzy Logic","volume":"48","author":"Marco","year":"2013","journal-title":"Eng. Struct."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"417","DOI":"10.1016\/j.conbuildmat.2016.08.064","article-title":"Estimation of compressive strength of hollow concrete masonry prisms using artificial neural networks and adaptive neuro-fuzzy inference systems","volume":"125","author":"Zhou","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"117266","DOI":"10.1016\/j.conbuildmat.2019.117266","article-title":"Predicting the compressive strength of normal and High-Performance Concretes using ANN and ANFIS hybridized with Grey Wolf Optimizer","volume":"232","author":"Golafshani","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"978","DOI":"10.1016\/j.conbuildmat.2018.09.031","article-title":"ANN and GEP prediction for simultaneous effect of nano and micro silica on the compressive and flexural strength of cement mortar","volume":"189","year":"2018","journal-title":"Constr. Build. Mater."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"102278","DOI":"10.1016\/j.mtcomm.2021.102278","article-title":"A comparative investigation using machine learning methods for concrete compressive strength estimation","volume":"27","year":"2021","journal-title":"Mater. Today Commun."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"785","DOI":"10.1016\/j.ijmst.2020.06.008","article-title":"Comparative evaluation of different statistical tools for the prediction of uniaxial compressive strength of rocks","volume":"30","author":"Teymen","year":"2020","journal-title":"Int. J. Min. Sci. Technol."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"717","DOI":"10.1016\/j.conbuildmat.2012.09.026","article-title":"Prediction of compressive strength of concrete containing construction and demolition waste using artificial neural networks","volume":"38","author":"Dantas","year":"2013","journal-title":"Constr. Build. Mater."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"524","DOI":"10.1016\/j.conbuildmat.2013.02.064","article-title":"Using artificial neural networks for predicting the elastic modulus of recycled aggregate concrete","volume":"44","author":"Duan","year":"2013","journal-title":"Constr. Build. Mater."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"35","DOI":"10.5958\/0974-360X.2017.00009.9","article-title":"Prediction of Compressive Strength of Concrete using Artificial Neural Networks","volume":"10","author":"Neeraja","year":"2017","journal-title":"Res. J. Pharm. Technol."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"305","DOI":"10.1016\/j.commatsci.2007.04.009","article-title":"Prediction of compressive strength of concrete containing fly ash using artificial neural networks and fuzzy logic","volume":"41","year":"2008","journal-title":"Comput. Mater. Sci."},{"key":"ref_47","unstructured":"Ongpeng, J.M.C., Gapuz, E., and Roxas, C.L.C. (September, January 28). Optimization of mix proportions of compressed earth blocks with rice straw using artificial neural network. Proceedings of the 2017 World Congress on Advances in Strucural Engineering and Mechanics (ASEM17), Seoul, Korea."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1147\/rd.33.0210","article-title":"Some Studies in Machine Learning Using the Game of Checkers","volume":"3","author":"Samuel","year":"1959","journal-title":"IBM J. Res. Dev."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"2214","DOI":"10.1016\/j.conbuildmat.2008.12.003","article-title":"Neural networks for predicting compressive strength of structural light weight concrete","volume":"23","author":"Marai","year":"2009","journal-title":"Constr. Build. Mater."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"121117","DOI":"10.1016\/j.conbuildmat.2020.121117","article-title":"Machine learning-based prediction for compressive and flexural strengths of steel fiber-reinforced concrete","volume":"266","author":"Kang","year":"2021","journal-title":"Constr. Build. Mater."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"120457","DOI":"10.1016\/j.conbuildmat.2020.120457","article-title":"Intelligent mixture design of steel fibre reinforced concrete using a support vector regression and firefly algorithm based multi-objective optimization model","volume":"260","author":"Huang","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1016\/j.cemconres.2018.09.006","article-title":"Can the compressive strength of concrete be estimated from knowledge of the mixture proportions?: New insights from statistical analysis and machine learning methods","volume":"115","author":"Young","year":"2019","journal-title":"Cem. Concr. Res."},{"key":"ref_53","unstructured":"Danso, H. (2021, September 27). Use of Agricultural Waste Fibres as Enhancement of Soil Blocks for Low-Cost Housing in Ghana, University of Portsmouth. Available online: https:\/\/researchportal.port.ac.uk\/en\/studentTheses\/use-of-agricultural-waste-fibres-as-enhancement-of-soil-blocks-fo."},{"key":"ref_54","first-page":"53","article-title":"Experimental analysis of Compressed Earth Block (CEB) with banana fibers resisting flexural and compression forces","volume":"5","author":"Mostafa","year":"2016","journal-title":"Case Stud. Constr. Mater."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"137","DOI":"10.21660\/2019.57.8138","article-title":"Compressed earth blocks with powdered green mussel shell as partial binder and pig hair as fiber reinforcement","volume":"16","author":"Lejano","year":"2019","journal-title":"Int. J. GEOMATE"},{"key":"ref_56","doi-asserted-by":"crossref","unstructured":"Araya-Letelier, G., Antico, F.C., Urzua, J., and Bravo, R. (2017, January 21\u201323). Physical-mechanical characterization of fiber-reinforced mortar incorporating pig hair. Proceedings of the 2nd International Conference on Bio-Based Building Materials & 1st Conference on ECOlogical Valorisation of GRAnular and FIbrous Materials, Clermont-Ferrand, France.","DOI":"10.4028\/www.scientific.net\/AEF.21.219"},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1016\/j.conbuildmat.2005.08.006","article-title":"The selection of soils for unstabilised earth building: A normative review","volume":"21","author":"Delgado","year":"2007","journal-title":"Constr. Build. Mater."},{"key":"ref_58","unstructured":"Day, R.W. (2001). Soil Testing Manual: Procedures, Classification Data, and Sampling Practices, McGraw Hill, Inc."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1016\/j.matpr.2020.05.522","article-title":"Physical characterization of bio-composite CEB stabilized with Argan nut shell and cement","volume":"36","author":"Akhzouz","year":"2021","journal-title":"Mater. 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