The compatibility of structural adhesives with wood

Pizzo, Benedetto; Lavisci, P.; Misani, C.; Triboulot, P.

doi:10.1007/s00107-003-0384-7

Cited by 11 publications

(7 citation statements)

References 2 publications

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“…Both of them were thixotropic, and their main physical and mechanical characteristics according to respective technical data sheets are reported in Table 2. Moreover, products were also tested in order to determine their wood-to-wood shear strength in the case of thick glue line, according to methods described previously [17][18][19]. These results are also reported in Table 2.…”

Section: Methodsmentioning

confidence: 99%

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Evaluation of a design approach to the on-site structural repair of decayed old timber end beams

Pizzo

Gavioli

Lauriola³

2013

Engineering Structures

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Section: Methodsmentioning

confidence: 99%

“…All data were obtained from Technical Data Sheets except for wood-to-wood strength of thick joints in shear tests, which was measured according to the method described previously [17][18][19]. Standard deviation in brackets.…”

Section: Tablementioning

confidence: 99%

Evaluation of a design approach to the on-site structural repair of decayed old timber end beams

Pizzo

Gavioli

Lauriola³

2013

Engineering Structures

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“…Since resin hardening involves the development of mechanical properties, different testing methodologies can be utilized, such as thermomechanical analysis (TMA), dynamic mechanical analysis (DMA) or torsional braid analysis, integrated pressing and testing system, or automated bonding evaluation system (ABES) . For testing ultimate strength, longitudinal tensile shear strength of solid wood joints are the preferred techniques, since shear strength is regarded as the most common interfacial stress under service conditions …”

Section: Introductionmentioning

confidence: 99%

Thermoplastic and moisture‐dependent behavior of lignin phenol formaldehyde resins

Solt

Herwijnen

Konnerth

2019

J of Applied Polymer Sci

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Bonding kinetics of thermosetting adhesives is influenced by a variety of factors such as temperature, humidity, and resin properties. A comparison of lignin‐based phenol formaldehyde (LPF) and phenol formaldehyde (PF) adhesive in terms of reactivity and mechanical properties referring to testing conditions (temperature, moisture of specimen) were investigated. For this purpose, two resins were manufactured aiming for similar technological resin properties. The reactivity was evaluated by B‐time measurements at different temperatures and the development of bonding strength at three different conditions, testing immediately after hot pressing, after applying a cooling phase after hot pressing, or sample conditioning at standard climate. In addition, the moisture stability of the two fully cured resins was examined. The calculated reactivity index demonstrated that LPF requires more energy for curing than PF. Further results indicate that lignin as substituent for phenol in PF resin has a negative impact on its moisture resistance. Additionally, the known thermoplastic behavior of lignin could also be detected in the behavior of the cured resin. This behavior is relevant for the adhesive in use and necessitates a cooling phase before testing the bonding strength development of lignin‐based adhesive systems. © 2019 The Authors. Journal of Applied Polymer Science published by Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48011.

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“…As a consequence, it is suitable for the purpose of initial evaluation of products and product approval. Moreover, in a different work [36] it was suggested that comparing the strength values of the glued joint to those of solid wood was a better criterion to evaluate the joint performances than using pre-defined values (compared to those suggested in EN 301). This comparison was based on the actual shear strengths of both kinds of samples (glued and solid wood), which are measured at the time of testing and with the same equipment.…”

Section: Shear Testsmentioning

confidence: 98%

“…Through the numerical value of the parameter k a;w , the adhesive can be eventually classified for its use on timber structures. For instance, in [36] the authors suggest the use of products with at least k a;w > 0.8 for applications in Service Class 3, as defined in Eurocode 5.…”

Section: Shear Testsmentioning

confidence: 99%