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GRANCHIO
GRANCHIO
GRANCHIO is a disposable formwork system crafted from recycled polypropylene, intended for creating ventilated crawl spaces in both new constructions and renovation projects. It serves as an alternative to traditional systems, offering benefits such as enhanced ventilation, humidity reduction, and radon gas dispersion.
Specifications:
The system comprises various models with distinct dimensions and characteristics, each designed to support specific loads. It features an interlocking connection system for straightforward installation and can accommodate pipes, ducts, and cables in multiple directions.
Installation Procedures:
- Use RcK 150 concrete for lean concrete casting to establish the laying level.
- For loads exceeding 4000 Kg/m2 or in seismic areas, foundations should be constructed with RcK 150 and welded mesh Ø 6 10x10.
- Install the GRANCHIO formwork following arrow indicators.
- Employ plastic angular profiles to prevent concrete overflow during casting.
- Reinforce with welded mesh Ø6 20x20 and fill with RcK 250 concrete.
Recommendations:
Ventilation holes should be alternated every 4/5 meters with a diameter of 8/12 cm. The system is designed to support the weight of operators and concrete during casting, with load capacity varying based on ground capacity, lean concrete, and slab thickness.
Load Capacity:
Detailed tables provide information on useful load on the slab in Kg/m2, depending on substrate thickness, concrete type, and slab thickness. Load tests conducted at the Istituto Giordano confirm the system's load-bearing capabilities.
Environmental Considerations:
Made from recycled materials, GRANCHIO may exhibit color variations. It is resistant to temperatures ranging from -21°C to +53°C.
Conclusion:
GRANCHIO provides a reliable and efficient solution for constructing ventilated crawl spaces, featuring easy installation and strong load-bearing capabilities. It is suitable for various construction environments, including seismic areas.
Catalog excerpts
Consumption of concrete for filling 3 m /m2 0,009 24050 Mornico Al Serio (BG) - I - Via Fornace Tel. +39 035 4490440 - Fax +39 035 4490752 www.projectforbuilding.com - [email protected] GRANCHIO The proven system to create ventilated
Open the catalog to page 1
GRANCHIO The proven system to create ventilated crawl spaces EXCERPT OF LOAD TESTS performed at the Istituto Giordano in Bellaria (RN) GRANCHIO is a disposable formwork in recycled polypropylene which is used, as an alternative to traditional systems, for the construction of ventilated crawl spaces in both new constructions and renovation projects. In accordance with the recommendation of the Commission of the European Communities of 02/21/90, due to the positioning of special ventilation holes, crawl spaces made with the GRANCHIO formwork benefit from good ventilation; moreover, humidity is...
Open the catalog to page 2
EXCERPT OF LOAD TESTS performed at the Istituto Giordano in Bellaria (RN) TEST CERTIFICATE N. 185603/137881/04 The Granchio sample in H40 composed of nine elements was subjected to a load test by means of the hydraulic jack acting on the slab with a thickness of 5cm. reinforced with electro-welded 05 mesh measuring 20x20. The load was applied through a metal load spreader measuring 32x32x4 cm The tests were carried out to a maximum load of about 195.5 kN (maximum load at break) with final failure of the order of 7.64 mm at a load of 166.7 kN. TABLE OF USEFUL LOAD ON THE SLAB IN Kg./m2 substrate...
Open the catalog to page 3
GRANCHIO The proven system to create ventilated crawl spaces EXCERPT OF LOAD TESTS performed at the Istituto Giordano in Bellaria (RN) GRANCHIO is a disposable formwork in recycled polypropylene which is used, as an alternative to traditional systems, for the construction of ventilated crawl spaces in both new constructions and renovation projects. In accordance with the recommendation of the Commission of the European Communities of 02/21/90, due to the positioning of special ventilation holes, crawl spaces made with the GRANCHIO formwork benefit from good ventilation; moreover, humidity is...
Open the catalog to page 4
DESCRIPTION OF WORKS a1) RcK 150 concrete must be used for lean concrete casting with a thickness of cm. ... for forming the laying level of the formwork called «GRANCHIO». a2) To loads of more than Kg. / m2 4000 and / or for construction in seismic areas the foundations must be made from RcK 150 with welded mesh 0 6 10x10. carried out following the arrow indicators. of concrete during casting. d) Supply and installation of reinforcement consisting of welded mesh 06 20x20. NB: When a floor is made with finished casting, the concrete should be cast in two phases: the first for filling of the legs...
Open the catalog to page 5
Consumption of concrete for filling 3 m /m2 0,009 24050 Mornico Al Serio (BG) - I - Via Fornace Tel. +39 035 4490440 - Fax +39 035 4490752 www.projectforbuilding.com - [email protected] GRANCHIO The proven system to create ventilated
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