Gluing Techniques on Bond Performance and Mechanical Properties of Cross-Laminated Timber (CLT) Made from Larix kaempferi

Li, Mingyue; Zhang, Shuangbao; Gong, Yingchun; Tian, Zhaopeng; Ren, Haiqing

doi:10.3390/polym13050733

Cited by 26 publications

(23 citation statements)

References 15 publications

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“…In the literature, thus far, there have been numerous studies regarding the technological aspects of timber in construction with different building solutions based on the utilization of engineered timber products such as CLT [40][41][42][43]. However, there is a limited number of researches (e.g., [44]) on dovetail massive wood elements (DMWE).…”

Section: The Current State-of-the-art Of Dovetail Massive Wood Elementsmentioning

confidence: 99%

Review of the Current State-of-the-Art of Dovetail Massive Wood Elements

Ilgın¹,

Karjalainen²,

Koponen³

2022

Engineered Wood Products for Construction

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Engineered wood products (EWPs) have been progressively more being utilized in the construction industry as structural materials since the 1990s. In the content of EWPs, adhesives play an important role. However, because of their petroleum-based nature, adhesives contribute to toxic gas emissions such as formaldehyde and Volatile Organic Compounds, which are detrimental to the environment. Moreover, the frequent use of adhesives can cause other critical issues in terms of sustainability, recyclability, reusability, and further machining. In addition to this, metal connectors employed in EWPs harm their end-of-life disposal, reusability, and additional processing. This chapter is concentrating on dovetail massive wood elements (DMWE) as adhesive- and metal connector-free sustainable alternatives to commonly used EWPs e.g., CLT, LVL, MHM, Glulam. The dovetail technique has been a method of joinery mostly used in wood carpentry, including furniture, cabinets, log buildings, and traditional timber-framed buildings throughout its rich history. It is believed that this chapter will contribute to the uptake of DMWE for more diverse and innovative structural applications, thus the reduction in carbon footprint by increasing the awareness and uses of DMWE in construction.

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Section: The Current State-of-the-art Of Dovetail Massive Wood Elementsmentioning

confidence: 99%

Review of the Current State-of-the-Art of Dovetail Massive Wood Elements

Ilgın¹,

Karjalainen²,

Koponen³

2022

Engineered Wood Products for Construction

View full text Add to dashboard Cite

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“…Additionally, CLT is mainly structural but can also be used as a facade material and a secondary building material, e.g., floor and non-structural walls [ 19 ]. In the literature, many studies focus on the technological aspects of EWPs, their use in construction, and different building solutions [ 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 ]. Several studies address wood as a structural material in buildings from the perspectives of key professionals (e.g., [ 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 ]) and consumers or residents (e.g., [ 60 , 61 , 62 , 63 , 64 , 65 ]).…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on Life-Cycle Assessment and Carbon Footprint of Hybrid, Concrete and Timber Apartment Buildings in Finland

Rinne

Ilgın

Karjalainen

2022

IJERPH

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To date, in the literature, there has been no study on the comparison of hybrid (timber and concrete) buildings with counterparts made of timber and concrete as the most common construction materials, in terms of the life cycle assessment (LCA) and the carbon footprint. This paper examines the environmental impacts of a five-story hybrid apartment building compared to timber and reinforced concrete counterparts in whole-building life-cycle assessment using the software tool, One Click LCA, for the estimation of environmental impacts from building materials of assemblies, construction, and building end-of-life treatment of 50 years in Finland. Following EN 15978, stages of product and construction (A1–A5), use (B1–B6), end-of-life (C1–C4), and beyond the building life cycle (D) were assessed. The main findings highlighted are as following: (1) for A1–A3, the timber apartment had the smallest carbon footprint (28% less than the hybrid apartment); (2) in A4, the timber apartment had a much smaller carbon footprint (55% less than the hybrid apartment), and the hybrid apartment had a smaller carbon footprint (19%) than the concrete apartment; (3) for B1–B5, the carbon footprint of the timber apartment was larger (>20%); (4) in C1–C4, the carbon footprint of the concrete apartment had the lowest emissions (35,061 kg CO2-e), and the timber apartment had the highest (44,627 kg CO2-e), but in D, timber became the most advantageous material; (5) the share of life-cycle emissions from building services was very significant. Considering the environmental performance of hybrid construction as well as its other advantages over timber, wood-based hybrid solutions can lead to more rational use of wood, encouraging the development of more efficient buildings. In the long run, this will result in a higher proportion of wood in buildings, which will be beneficial for living conditions, the environment, and the society in general.

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“…Therefore, there is still room for a solution consisting of solid and completely pure wood, dovetail wood board elements (DWBEs) [23]. Numerous studies have been conducted in the literature on the technological, ecological, and economic aspects of EWPs in construction with different building solutions [24] such as [25][26][27][28][29][30], and there is limited understating of DWBEs, which mostly includes structural analysis of connection details (e.g., [31][32][33][34][35][36][37][38][39]). Here, the dovetail wood board elements (DWBEs) can be defined as solid/massive and pure wood structural elements such as floor Engineered Wood Products for Construction 4 slabs that use plug-in dovetail form in the joint detail and do not use adhesives and metal connections.…”

Section: Introductionmentioning

confidence: 99%

Various Geometric Configuration Proposals for Dovetail Wooden Horizontal Structural Members in Multistory Building Construction

Ilgın¹,

Karjalainen²,

Koponen³

2022

Engineered Wood Products for Construction

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Adhesives and metal fasteners have an important place in the content of engineered wood products (EWPs). However, adhesives may cause toxic gas emissions due to their petroleum-based nature, while metal fasteners may adversely affect the reusability of these products. These issues also raise important questions about the sustainability and environmental friendliness of EWPs. Thus, there is still room for a solution that is solid and completely pure wood, adhesive- and metal-connectors-free dovetail wood board elements (DWBEs). There are many studies on the technological, ecological, and economic aspects of these products in the literature, but no studies have been conducted to assess the technical performance of DWBEs. This chapter focuses on DWBEs by proposing various geometric configurations for horizontal structural members in multistory building construction through architectural modeling programs. In this architectural design phase, which is one of the first but most important stages, the proposed configurations are based on a theoretical approach, considering contemporary construction practices rather than structural analysis or mechanical simulation. Further research, including technical performance tests, will be undertaken after this critical phase. It is believed that this chapter will contribute to the dissemination of DWBEs for innovative architectural and structural applications, especially in multistory wooden structures construction.

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Gluing Techniques on Bond Performance and Mechanical Properties of Cross-Laminated Timber (CLT) Made from Larix kaempferi

Cited by 26 publications

References 15 publications

Review of the Current State-of-the-Art of Dovetail Massive Wood Elements

Review of the Current State-of-the-Art of Dovetail Massive Wood Elements

Comparative Study on Life-Cycle Assessment and Carbon Footprint of Hybrid, Concrete and Timber Apartment Buildings in Finland

Various Geometric Configuration Proposals for Dovetail Wooden Horizontal Structural Members in Multistory Building Construction

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