Bamboo Events Desk
27th June 2006, 06:21 PM
Durability of Bamboo Structures
The EMISSIONIZERO, Bamboo Pavilion, MONITORING & MAINTENANCE
WALTER LIESE
with
Mario De Miranda (Eng. Studio De Miranda - Milan)
Neri Braulin (Arch. EMISSIONIZERO, Politecnico of Milan)
Valeria Chioetto (Pres. EMISSIONIZERO)
We know bamboo is an extrordinary building material, that can substitute wood in all its uses due to its amazing structural performances and with a dramatically lower environmental impact. But can we rely on bamboo from the durability point of view? Under which conditions? How far has the research gone, at this level? What are the best techniques?
From "Designing and Building with Bamboo" - Prof. Jules J. A. Janssen
[...] In most tropical countries, the high relative humidity of the air adds to durability problems. A high moisture content in the bamboo - which makes complete drying difficult and thus provides an opening for fungal attack - poses uncertainties in its application in housing, furniture, etc. [...]
Preservation can improve the durability of bamboo considerably.
[...] Information on the natural durability of different bamboo species is still sparse. Research on the differences among various species would allow for the selection of species with better natural durability. Whether the extent of natural durability of such selected species will meet the expected service life requirement for a particular product, however, will remain an open question [...]
Topics of the workshop
We will examine both the factors which influence bamboo natural durability and the factors which determine the durability of bamboo structures
We will analyze how biological attacks can be prevented: what kinds of treatments, their effectiveness, their costs and application techniques
We will also examine how cracks can affect the static performances of bamboo structures and will illustrate intervention models and criteria for the placing of metal rings
The maintenance actions recently carried out by EMISSIONIZERO on the Vergiate Bamboo Pavilion, with the micronized spraying of a solution containing boron salts and the placing of metal rings, will be described and shown during a visit to the building
Moreover, the first findings of the monitoring of the structure in relation with the local environmental forces and the ultimate load conditions will be illustrated. This work in progress is carried out with the scientific supervision of Prof. Walter Liese, for the biological aspects, and Eng. Mario de Miranda for the structural ones
Acknowledgements
Societa' Chimica Larderello (http://www.scl.it/english/eng_contat.html)
for its support in the experimental use of their boron salts used ex-post, on our bamboo construction
M.J. Maillis Columbia
for supporting our maintenance intervention with metal rings applied on cracked culms
Participation Fees
For those who
a. will overnight in Vergiate
arriving friday September 15 (evening) € 300
arriving saturday September 16 a.m. € 240
b. will not overnight in Vergiate € 200
(+ taxes: IVA, 20%)
On all fees a 30 € reduction will be applied for EMISSIONIZERO Associates
Walter Liese
As many of you know, Prof. Liese is one of the most wellknown experts in the world of the anatomy and preservation of bamboo.
His carrier as a wood biologist and expert in forestry, covers almost fifty years.
His has worked everywhere and far away, from Bangladesh to Chile, from Indonesia to Vietnam, from Nigeria to Tanzania.
Although retired, Walter Liese still offers generously his knowledge and experience in bamboo and rattan.
Hotel
Green Motel
Via S.Rocco, 29 - Vergiate
a small 4 stars hotel, cosy and calm, surrounded by the green of the Ticino Park
As usual, participants will sleep in 2 beds or 3 beds rooms.
Single rooms can be asked with a modest extra cost.
Registrations
Please email EMISSIONIZERO (emissionizero@emissionizero.net)
For any further information you can also call us!
tel. 0039. 02.39268320
(or mobile phone 0039. 340. 4123398)
The EMISSIONIZERO, Bamboo Pavilion, MONITORING & MAINTENANCE
WALTER LIESE
with
Mario De Miranda (Eng. Studio De Miranda - Milan)
Neri Braulin (Arch. EMISSIONIZERO, Politecnico of Milan)
Valeria Chioetto (Pres. EMISSIONIZERO)
We know bamboo is an extrordinary building material, that can substitute wood in all its uses due to its amazing structural performances and with a dramatically lower environmental impact. But can we rely on bamboo from the durability point of view? Under which conditions? How far has the research gone, at this level? What are the best techniques?
From "Designing and Building with Bamboo" - Prof. Jules J. A. Janssen
[...] In most tropical countries, the high relative humidity of the air adds to durability problems. A high moisture content in the bamboo - which makes complete drying difficult and thus provides an opening for fungal attack - poses uncertainties in its application in housing, furniture, etc. [...]
Preservation can improve the durability of bamboo considerably.
[...] Information on the natural durability of different bamboo species is still sparse. Research on the differences among various species would allow for the selection of species with better natural durability. Whether the extent of natural durability of such selected species will meet the expected service life requirement for a particular product, however, will remain an open question [...]
Topics of the workshop
We will examine both the factors which influence bamboo natural durability and the factors which determine the durability of bamboo structures
We will analyze how biological attacks can be prevented: what kinds of treatments, their effectiveness, their costs and application techniques
We will also examine how cracks can affect the static performances of bamboo structures and will illustrate intervention models and criteria for the placing of metal rings
The maintenance actions recently carried out by EMISSIONIZERO on the Vergiate Bamboo Pavilion, with the micronized spraying of a solution containing boron salts and the placing of metal rings, will be described and shown during a visit to the building
Moreover, the first findings of the monitoring of the structure in relation with the local environmental forces and the ultimate load conditions will be illustrated. This work in progress is carried out with the scientific supervision of Prof. Walter Liese, for the biological aspects, and Eng. Mario de Miranda for the structural ones
Acknowledgements
Societa' Chimica Larderello (http://www.scl.it/english/eng_contat.html)
for its support in the experimental use of their boron salts used ex-post, on our bamboo construction
M.J. Maillis Columbia
for supporting our maintenance intervention with metal rings applied on cracked culms
Participation Fees
For those who
a. will overnight in Vergiate
arriving friday September 15 (evening) € 300
arriving saturday September 16 a.m. € 240
b. will not overnight in Vergiate € 200
(+ taxes: IVA, 20%)
On all fees a 30 € reduction will be applied for EMISSIONIZERO Associates
Walter Liese
As many of you know, Prof. Liese is one of the most wellknown experts in the world of the anatomy and preservation of bamboo.
His carrier as a wood biologist and expert in forestry, covers almost fifty years.
His has worked everywhere and far away, from Bangladesh to Chile, from Indonesia to Vietnam, from Nigeria to Tanzania.
Although retired, Walter Liese still offers generously his knowledge and experience in bamboo and rattan.
Hotel
Green Motel
Via S.Rocco, 29 - Vergiate
a small 4 stars hotel, cosy and calm, surrounded by the green of the Ticino Park
As usual, participants will sleep in 2 beds or 3 beds rooms.
Single rooms can be asked with a modest extra cost.
Registrations
Please email EMISSIONIZERO (emissionizero@emissionizero.net)
For any further information you can also call us!
tel. 0039. 02.39268320
(or mobile phone 0039. 340. 4123398)