Prelims - Building with Bamboo

Janssen, Jules J. A.

doi:10.3362/9781780442143.000

Cited by 22 publications

(14 citation statements)

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“…In general, the alpha-cellulose content in bamboo is 40-50%, which is consistent with the reported cellulose content of softwoods (40-52%) and hardwoods (38-56%). Alpha-cellulose is the main source of the mechanical properties of bamboo and wood [13]. Holocellulose include alpha-cellulose and hemicellulose.…”

Section: Resultsmentioning

confidence: 99%

Graft copolymerization of acrylonitrile onto delignified native bamboo (Bambusa vulgaris) cellulosic and its utilization potential for heavy metal uptake from aqueous medium

Ekebafe

Akpa

et al. 2011

CI&CEQ

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Graft polymerization of acrylonitrile onto delingnified cellulosic material obtained from Nigeria grown bamboo (Bambusa vulgaris) could be initiated by a ceric ammonium nitrate redox system. Optimization of grafting of acrylonitrile onto cellulosic material was performed by varying the reaction conditions, such as the duration of soaking of cellulosic material in ceric ammonium nitrate solution, concentration of ceric ammonium nitrate solution, polymerization time, temperature of reaction, and acrylonitrile concentration and saponification time, in order to study their influence on percent grafting yield and grafting efficiency. The resulting cellulosic-g-polyacrylonitrile (PAN) copolymers were fractionated by extraction at 33 °C with N,N'-dimethylformamide. Fractions were characterized by determining both the % add-on and the free polymer. Saponification of grafted copolymer was done by reaction with sodium hydroxide followed by methanol precipitation. The absorbent polymer so produced gave fair water retention values. The optimum reaction conditions obtained were: 20 mmol/L ceric ammonium nitrate solution in 1% nitric acid, soaking duration of 0.5 h at 40 °C for a polymerization time of 2 h and saponification time of 3 h. The percent grafting was 167.89%, grafting efficiency was 93.52% and water retention value was 389 g/g. The grafting was confirmed using FTIR. Sorption of different metal ions in the mixture, e.g. Cr, Mn, Ni, Cu and Pb, by grafted cellulosic and the hydrogel was also investigated. Hydrolysis increases the sorption affinity of grafted cellulose toward water and metal ions.

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Section: Resultsmentioning

confidence: 99%

Graft copolymerization of acrylonitrile onto delignified native bamboo (Bambusa vulgaris) cellulosic and its utilization potential for heavy metal uptake from aqueous medium

Ekebafe

Akpa

et al. 2011

CI&CEQ

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“…In recent years some research work has been carried out on developing new joint systems for bamboo such as plywood inserts, wooden plugs, steel clamps and aluminium plates [3,4]. The establishment of the International Network for Bamboo and Rattan (INBAR) in 1997 contributed to the renewed interest in research on bamboo [5].…”

Section: Introductionmentioning

confidence: 99%

Lightweight bamboo double layer grid system

Albermani

Goh

Chan

2007

Engineering Structures

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The paper presents the structural and environmentally sustainable aspects of bamboo as a valid construction material. A special PVC joint designed for bamboo double layer grids (DLG) is presented and implemented in a 2.3 × 2.3 × 0.9 m DLG module. Experimental results obtained from evaluating two bamboo species, proof loading of the proposed PVC joint and loading of the DLG module are presented and compared to numerical predictions. The results indicate that the proposed DLG system can be used in practice for constructing lightweight medium-span bamboo structures with excellent structural, aesthetic and environmental attributes.

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“…Janssen (2000) has proven that bamboo in terms of the relation between the moment of inertia and the diameter is 1.9 times more effective than the rectangular solid cross section of a wooden beam, which leads to material savings and a light construction weight, see Fig. 7.…”

Section: Bamboo Stemmentioning

confidence: 98%

“…For this reason, the eco-costs of (Janssen, 2000). 9 Carbonization is the commonly used term in the bamboo industry to denounce the process in which the sugars in the bamboo are released through steam treatment through which the bamboo material acquires a darker colour.…”

Section: Strand Woven Bamboo (Swb)mentioning

confidence: 99%