Scheda tecnica - EN (60)
Description of the job
- Asbestos removal and reconstruction of the building's roofing.
- Installation of a photovoltaic system
The Quinto di Treviso plant is an industrial building with non-walkable shed roofing. The interventions included first of all the removal of the two-layered asbestos from the roofing. For safety reasons, safety nets had to be installed on the entire surface. The roofing reconstruction included the installation of pre-painted galvanised-steel sandwich panels with 50 mm mineral wool insulating mat, as required by the new fire brigade regulation. A permanent life line was installed to complete the building operations.
Technical data
- Removal of 25,000 m2 of cement-asbestos
- Roofing reconstruction with pre-painted galvanised-steel sandwich panels and 50 mm mineral wool insulating mat
- Installation of 3,442, 240 W poly-crystalline silicon photovoltaic modules
- Power of the photovoltaic system installed: 826 kWp
- Estimated return on investment time, including remediation and roofing reconstruction: 5 years
- Work duration: 2 months
Data
Customer: Golfetto Sangati
Area: Quinto di Treviso (TV)
Work Termination: 2012
Golfetto Sangati
Description of the job
Asbestos decontamination of the Descartes tower in Paris
139 metre-high Descartes tower is the 23rd highest building in Paris; but, in terms of surface covered, it is one of the largest buildings of the city. It was built in 1988 and hosted the IBM headquarters for years. It is currently 66% owned by Icade company, which decided to refurbish it.
The remediation works started in May 2010 and are scheduled to finish by September 2011.
The remediation intervention covers 41 floors; because of the scope of these works and the short time available, a group of 3 companies, including TIA, was entrusted with this task. The asbestos used to be widely present as fire protection on walls, ceilings and beams and it has to be fully removed in complete safety.
These labour-intensive works require a high level of organisation within the worksite.
Data
Customer: Icade
Area: Parigi
Construction site: Tour Descartes
Year of completition: 2011
Icade
Description of the job
- Friable asbestos removal from ceilings and pipe coatings within tunnels, air conditioning ducts and shafts.
- Cement-asbestos roofing removal.
- Partial masonry demolition.
Critical points
- In order to respect the timing set for the refurbishment of the whole complex, demolition and remediation works were carried out in only 6 months. This required a huge organisation and coordination work.
- On average, 30 specialised workers were employed simultaneously in 7 work sites.
- Identification of all the asbestos contained in the building complex was a critical point. In particular, a complete mapping was carried out to find the underfloor pipes which had not been identified yet. A total of 3,600 linear metres of pipes were found, divided into bundles of 6 pipes each. The main problems were their location and conditions, which required working with extreme care.
Innovative solutions adopted
- In a previously reclaimed area, where there were still traces of paint and asbestos fibres on the ceilings, the hydro-sandblasting method was used. This innovative solution in the asbestos-removal field, implemented in a completely confined space (static and dynamic confinement), made it possible to carry out the work in complete safety, within a limited time and at a reasonable cost. The traditional procedure would have involved much higher costs.
- Amount of the contract: €. 2.324.056 (for asbestos removal only)
Technical data
Area treated:
- m3 630 of friable asbestos
m2 11.000 of cement-asbestos roofing
m 6.000 of asbestos-coated pipes
m 600 of asbestos-coated under-eaves ducts
- N° of work site managers: 3
N° of specialised workers: 30 - Waste disposed of:
Kg 190.000 of friable asbestos
Kg 210.000 of cement-asbestos
Data
Customer: Il Sole 24 Ore
Area: Milano
Construction site: ex stabilimento Italtel
Work Period: 6 months
Work Termination: September 2000
Il sole 24 ore
Description of the job
Inspection and evaluation of the state of conservation of asbestos-containing materials (ACM) and man-made vitreous fibres (MMVF), that are present in different areas of the ILVA plant in Taranto, in order to carry out a risk assessment.
- inspection of the working areas to assess the state of conservation of asbestos-containing materials, already known and listed, the presence and the state of conservation of asbestos-containing materials and the presence of MMVF (man-made vitreous fibres)
- assessment of the risk of exposure to airborne asbestos fibres and man-made vitreous fibres, by means of sample-taking and analysis by scanning electron microscopy (SEM)
- preparation of the inspection and assessment report, photographic documentation, sample analysis certificates and assessment of their results, including samples of materials which may contain asbestos
In particular, our intervention included:
- Installation of 2 office containers and storage for equipment and PPE
- Samples were taken and sent to the Accredia accredited laboratory, to be analysed by Scanning Electron Microscopy (SEM), certificates were issued for the analysis of airborne fibres and large samples of materials which may contain asbestos
- Samples were taken and sent to the Accredia accredited laboratory, to be analysed to determine the average diameter of alkaline oxides and alkaline/earth oxides, certificates were issued for the analysis of large samples of MMVF (man-made vitreous fibres)
- Assessment of the state of degradation of ACM by means of the methods required by applicable regulations (VERSAR)
- Preparation of a final document for each area, including the inspection report - photographic report - application of methods to be used for the evaluation of the state of conservation of ACM by means of the methods required by applicable regulation - Plans identifying the sampling points - Analysis certificates - Tabulation of results
SEM analyses carried out
1286 SEM on airborne fibres
92 SEM on large samples of materials which may contain asbestos
Staff involved
1 work coordinator
5 operational teams, each team includes 1 senior technician and 1 operator holding a "asbestos removal operator" licence
Daily production of samples to be analysed for airborne fibres
70 samples, 14 samples per team
Equipment used
35 TIA-owned SEM devices, with a minimum capacity of 12 l/min
Certified analysis laboratories
3 Accredia certified laboratories
Data
Customer: Ilva SpA
Construction site: Manufacturing plant
Area: Taranto
Work Period: 3 months
Work Termination: July 2015
Description of the job
Remediation and demolition of Cet 1 installation:
- removal of all asbestos and mineral fibres insulation systems
- removal of fluids and residues from the installations
- controlled demolition flush with the floor and recovery of ferrous materials
- construction of structural reinforcements for the remaining installations
30 specialised workers worked for one year and a half for the removal of asbestos and other dangerous substances. Other teams of technicians and workers carried out the controlled demolition works in the plant and the structural reinforcements; these activities were realised discontinuously.
Technical data
Dimensions:
- mq. 18.410 plan surface
Waste:
- mq. 50.977 of asbestos/mineral wool on pipes
- mq. 13.572 of asbestos/mineral wool on the ground
- mq. 42.704 of polythene
- 2.000 tons of reinforced concrete
- 9.000 tons of ferrous scrap
Data
Customer: ILVA
Construction site: Centrale CET 1
Area: Taranto
Work Termination: 2010
