Inference of mechanical properties and structural grades of bamboo by machine learning methods

Correal, Juan F.; Salcedo, Andrés Felipe Calvo; Trujillo, David; Echeverry, Juan S.

doi:10.1016/j.conbuildmat.2022.129116

Cited by 11 publications

(5 citation statements)

References 16 publications

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“…The flexural resistance values of the concrete mixtures added with Guadua angustifolia fibers were the highest, regardless of the curing time. These results are in agreement with the trends found in the analysis of tensile strength, where it has been shown that cementitious compounds typically gain less resistance due to the addition of Guadua angustifolia fibers [42,44]. The results here show that adding fibers affects the ternary mixtures more.…”

Section: Resultssupporting

confidence: 91%

Geopolymers Based on a Mixture of Steel Slag and Fly Ash, Activated with Rice Husks and Reinforced with Guadua angustifolia Fibers

2023

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At present, the conservation of the environment represents an objective that everyone wants to achieve. The construction industry has influenced the advancement of alternative materials that comply with sustainable development. In this article, reinforced concrete was obtained by mixing 80% blast furnace slag and 20% fly ash. These concentrations were chosen because they provide the lowest porosity in the cementitious matrix. Rice husk ash was used as an activator. Guadua angustifolia fibers were used to evaluate the mechanical performance of the concrete. The composition of the raw material was determined by X-ray fluorescence, the microstructure of the fibers by AFM, and the SEM technique was used to determine the surface characteristics of guadua fibers and concrete mixes. The structural characterization using XRD, the structure of the molecules of the guadua fiber, and the composition of the mixture’s molecular mixtures were determined by FTIR spectroscopy. Its properties, such as tensile strength and flexural strength, were analyzed. The results indicated that the concrete with the addition of Guadua angustifolia fibers. The results indicated that the concrete with the addition of guadua angustifolia fibers showed the best mechanical behavior. Tensile strength was optimized, establishing values of 2.68 MPa for unreinforced concrete and up to 3.12 MPa for fiber-reinforced concrete. The flexural strength values increase at ages after 28 days due to the pozzolanic reaction generated. Values of 2.8 MPa were obtained for concrete without fiber and 3.5 MPa for concrete reinforced with guadua angustifolia fiber.

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Section: Resultssupporting

confidence: 91%

Geopolymers Based on a Mixture of Steel Slag and Fly Ash, Activated with Rice Husks and Reinforced with Guadua angustifolia Fibers

2023

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“…The lack of reliable and consistent data for bamboo makes univeralising IP selection and IP-to-GDP inference challenging. Machine learning [60] and material informatics [61] approaches have been proposed to accelerate this development.…”

Section: Identification Of Mechanical Characteristics For Grading Bam...mentioning

confidence: 99%

Mechanical characterisation of bamboo for construction: the state-of-practice and future prospects

Harries,

Molari

2024

RILEM Tech Lett

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Methods for material characterisation of bamboo necessary for the structural design of bamboo and its expanded use in the construction sector are described. Directions for revising the nascent existing ISO 22157:2019 standard and future directions for this standard are discussed. Critical needs identified include i) improved performance of standard shear and flexural tests; ii) the need to establish protocols and methods for quantifying the long-term behaviour of bamboo and its degradation under environmental exposure; and, iii) establishing the efficacy of emerging methods of bamboo treatment. Requirements are placed in the test standards – grading – structural design ecosystem and are intended to guide future revisions of test and design standards.

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“…In Asia, China boasts the greatest diversity of bamboo, having 500 native species. Japan follows with 139 species, while India, Indonesia, and Myanmar have 119, 118, and 97 species, respectively [42].…”

Section: Bamboo Speciesmentioning

confidence: 99%

“…The study of Bahtiar et al [15] on the structural grading of Guadua angustifolia demonstrated that the correlation between moisture content and mechanical properties of bamboo bears a striking resemblance to that of wood, with compression resistance of short members as the grading foundation. The moisture content of Guadua angustifolia kunth species typically falls within the range of 9% to 10% [42], a similar range to that of [15], having a higher MC at the nodal section but considered insignificant. Sa Riberio et al [8] studied the MC of untreated Bambusa vulgaris and found that the average MC was 12.95% higher than that obtained by Dixon et al after borax treatment for three species Moso, Guadua, and Tregai, which were 4%, 6%, and 6%, respectively.…”

Section: Moisture Content Of Bamboomentioning

confidence: 99%

“…The International Standards used includes (1) ISO 22157-2019 [1, 16,54,74,75]: 2004 [8,14,15,17,24,27,92]: test methods for determination of physical and mechanical properties of bamboo culms; (2) ISO 22156 [77,98]: bamboo-structural design which basically concerned with the requirements for the mechanical resistance, service and durability of bamboo structures; (3) ISO 12122-1 [42]: determination of the characteristic values for a defined population of timber products; (4) ISO 19624 [15,42]: basic principles and procedures of the grading of bamboo culms for bamboo structures; (5) ASTM D143 [44,63,64,84]: standard test methods for small clear specimens of timber; (6) ASTM D3379-75 [91]: standard test method for tensile and young's modulus for high-modulus single filament materials; (7) ISO 9427 [91]: methods of determining the density of wood-based panels; (8) ISO 16979 [59]: determination of the moisture content of wood-based panels; (9) ASTM D1037-12 [48,91]: standard test methods for evaluating properties of wood-based fiber and particle panel materials; (10) ASTM D3039 [10]: standard method for tensile testing composites; (11) ASTM 3043-00 [44]: standard test for structural panels in flexure; (12) ASTM D7078-12 [44]: standard test method for shear properties of composite materials by V-notched rail shear method; (13) ASTM 5266-99 [44] standard practice for estimating the percentage of wood failure in adhesive joints; and ( 14) ASTM D3822-07 [78]: standard test method for tensile properties of single textile fibers.…”

Section: Codes and Standards Utilized By Referencesmentioning

confidence: 99%

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Bamboo as Sustainable Building Materials: A Systematic Review of Properties, Treatment Methods, and Standards

Adier,

Sevilla,

Valerio

et al. 2023

Buildings

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Bamboo is the building material of the past and future. It offers numerous properties that make it versatile for various applications, including construction. Its impressive strength-to-weight ratio enables it to bear substantial loads and stresses, while its good elasticity allows efficient energy absorption. However, its mechanical properties can vary based on factors such as species, age, locations, methods, and treatment. Treating bamboo is essential to enhance its properties and durability. The literature provides various natural and chemical treatments that enhance some of the properties but also reported drawbacks regarding higher temperature, content, and duration. This paper reviewed 57 articles from the Scopus database, specifically focusing on article–document-type publications from the years 2003 to 2023. Additional references were also incorporated to address concerns in properties, treatment, and standards to provide systematic understanding. With extensive assessment of the articles, the following gaps and concerns were observed, and recommendations for further study and assessment were made: the bamboo’s properties, the development of centralized guidelines and procedures for the preparation and processing; the exploration of alternative materials to reinforce bamboo without compromising its ductility; and the development of joint connections, and testing of mechanical properties considering seismic, wind and vibration. For treatment methods, the standardization of procedures using natural, chemical, or a combination. Lastly, for bamboo codes and standards, the assessment of existing codes and standards for testing the mechanical properties of bamboo, highlighting the potential limitations and areas, uniformity, and differences with all existing similar standards. By filling these gaps, it can support the reliability and robustness of bamboo as a sustainable material, fostering its promotion and adoption in the construction industry.

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Inference of mechanical properties and structural grades of bamboo by machine learning methods

Cited by 11 publications

References 16 publications

Geopolymers Based on a Mixture of Steel Slag and Fly Ash, Activated with Rice Husks and Reinforced with Guadua angustifolia Fibers

Geopolymers Based on a Mixture of Steel Slag and Fly Ash, Activated with Rice Husks and Reinforced with Guadua angustifolia Fibers

Mechanical characterisation of bamboo for construction: the state-of-practice and future prospects

Bamboo as Sustainable Building Materials: A Systematic Review of Properties, Treatment Methods, and Standards

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