Fiberglass Reinforced Polymers Gratings and structures
M.M.: A STORY OF RELIABILITY We design and supply high quality standard customized solutions according to clients’ specific needs, to guarantee safety for the users of our products.
M.M. s.r.l. was established in 1977 and was the first European producer of FRP gratings (Fiberglass Reinforced Polymers). M.M. has been growing steadily over the years, both in size (at the moment the company is operating in two plants on an area of 13,000 m²), as well as in its production range. Today M.M. offers gratings, profiles and structures in FRP (parapets, gangways, ladders, fences, gates) and a wide range of accessories. Customer satisfaction is our priority at every step of our business process, from design to production, from the proposal to post-sale service.
WE PRODUCE IN ITALY, WE SELL ALL OVER THE WORLD
Our business reaches various markets in the world, directly or indirectly through our sales and distribution network. We are the leaders in FRP in the European market, chosen by our customers for the high quality of our products and for the technical services we provide.
OUR CUSTOMER SERVICES M.M. boasts a management quality system certificate ISO 9001 that guarantees high quality standards. We offer a highly experienced engineering team that is able to develop 3D modeling, structural calculation and drawings for any type of FRP structure, acheiving a high level of quality and precision. To guarantee maximum safety and reliability, we can carry out mechanical tests in a laboratory fully equipped with load cells, as well as chemical resistance tests of finished products by exposing them to chemicals under various environmental conditions. We offer cut to measure and shaping services as well as varnishing services according to the customers’ requirements. All our products are created for easy assembly. Structures are pre-assembled prior to shipping. Customers benefit from having a product that’s tested and ready to install. We personally test the integrity and the compliance of our products using machines and tools specifically made for the task, drawing upon the expert advice of external laboratories and institutes.
WHY SHOULD YOU CHOOSE M.M.?
The FRP or GRP is commonly known as Fiberglass Reinforced Polymers. It is a material consisting of a matrix of thermosetting polyester resins reinforced in continuous glass fibers. These two components lend different properties to the material: the glass fibers give high mechanical resistance and represent the structural part, while the polyester resins tie together the glass fibers enabling stress distribution and high corrosion resistance. These properties allow their use in numerous applications. M.M.’s gratings are manufactured according to our own unique RTM (Resin Transfer Molding) technology, based on the polymerization of the gratings in sealed molds, which guarantees a more homogeneous resin fitting and a minimal environmental impact. The handicraft works have been replaced by specially designed advanced robotic systems.
FRP AND ITS TECHNOLOGY
THE ADVANTAGES OF OUR FRP LIGHT WEIGHT AND RESISTANT STRUCTURES EASY INSTALLATION MAINTENANCE FREE VERSATILE USE
EXCELLENT MECHANICAL RESISTANCE/WEIGHT RATIO In the FRP products, the glass fibers confer a high mechanical strength and if compared to steel’s weight it turns out to be more resistant. HIGH DIELECTRIC PROPERTIES FRP is non-conductive. GOOD FIRE REACTION M.M. products can be manufactured in a self-extinguishing version. RESISTANCE TO CHEMICAL AGENTS The resins used preserve the products’ characteristics - even if in permanent contact with most chemical compounds. RESISTANCE TO TEMPERATURE LEAPS AND HUMIDITY No residual defects have appeared after several exposure cycles of heat, cold and humidity. UV RESISTANCE No residual defects have appeared following the accelerated ageing test carried out with UV lamps. SEAWATER RESISTANCE The isophtalic resins that we use suffer no variation of their chemical and mechanical properties after 10 years immersed in seawater at a temperature of 50°C. RESISTANCE TO LOW TEMPERATURES The resins employed by M.M. can resist temperatures as low as -30°C. NO SOFTENING TO MEDIUM/HIGH TEMPERATURES The resins are thermosetting and therefore do not soften if exposed to medium-high temperatures. MINIMAL THERMAL EXPANSION FRP’s low thermal expansion assists installation. DOES NOT RELEASE HAZARDOUS SUBSTANCES M.M. products do not release hazardous substances and our ACS certified version could be used in direct contact with drinking water. LIGHTWEIGHT Their specific weight of approximately 1,4 Kg/dm3 make them be easy to handle and they do not put excessive burden on support structures.
COMPARISON BETWEEN FRP AND STEEL FRP
GALVANIZED STEEL
STAINLESS STEEL
CORROSION RESISTANCE
Long resistance to a wide range of chemical substances (both acids and bases) and temperatures. It does not stand organic compounds.
Does not stand sulfur compounds that destroy the zinc coat. Does not stand < 5.5 PH acids.
Does not tolerate Cl- and Fl- ion compounds especially with fluid stagnation. Does not tolerate seawater.
WEIGHT
Very light Profile density 1,75 Kg/dm3 Grating density 1,40 kg/dm3
ELECTRIC PROPERTIES
Excellent insulator Surface and volume electric resistivity > 200 MΩ
High electric conductivity 0,714 Ω /mm2m Risk of possible electric discharges and corrosion due to galvanic currents.
THERMAL PROPERTIES
Low thermal conductivity k = 0,22 W/m°C
High thermal conductivity k = 36-54 W/m°C
MECHANICAL RESISTANCE
High mechanical resistance/weight ratio. Profile elastic modulus = 23000 MPa Grating elastic modulus = 12250 MPa Orthotropic material.
IMPACT RESISTANCE
In case of impact, the stress is distributed and there is no permanent deformation.
EMI/RFI TRANSPARENCY
Transparent EMI/RFI waves
VERSATILITY
The coloring is made in the mass with the addition of pigments to the resin. Different colors are available on demand.
Different colors and finishings are not available.
ASSEMBLING AND INSTALLATION HANDINESS
No specific tools are required. The lightness of FRP products makes easier the transport and the installation. They can be handled manually.
Specific tools are required. The material is heavy. Lifting and assembling devices will be needed.
PURCHASE COST
MEDIUM
MEDIUM
HIGH
INSTALLATION COST
LOW
MEDIUM
MEDIUM
MANITENANCE COST
NULL
MEDIUM
LOW
Very heavy Density di 7,85 Kg/dm3
Elastic Limit: 250 MPa Tensile strength: 400 MPa Elastic modulus = 210000 MPa Homogeneous material. In case of impact, it could permanently be deformed (plastic behavior). Could interfere with EMI/RFI transmissions
STANDARD GALVANIZED STEEL GRATING
FRP GRATING
BEFORE TESTING
STILL DOUBTS ON FRP?
H% SO4 2
% 60%
Have a look at these tests done with the collaboration of the Università Tor Vergata in Rome. The tests were carried out by immersing the samples in the specified substances for the given time. The pictures clearly show that there were no significant modifications to the FRP grating.
40°C
%
%
100h
%3 HNO % 35% 40°C
%
%
50h
Sea %water
% 100% 80°C
%
%
250h
% NaOH % 30% 40°C
%
50h
%
FRP GRATINGS M.M. FRP gratings are designed with a high safety factor and are manufactured according to the DIN 24537-3 standard. La M.M. operaininorder diversi mercati nel Our gratings are manufactured in a wide range of sizes to guarantee direttamente an immediate solution to various designmondo, problems and areo indirettamente produced in attraverso monolithic panels that are easy and fast to install. la propria rete di agenti e distributori, con prevalenza nel mercato europeo, presentandosi They can be supplied with an anti-skid certified surface according to the DIN leader proprio settore ed 51130 standard. On request, they can be come supplied in thedelself-extinguishing interlocutore privilegiato per l’alta variation. qualità dei prodotti e dei servizi offerti. Further to the classic gratings, M.M. can supply products with specific technical characteristics for their use in particular locations that require distinctive features (particularly aggressive environments, potentially explosive areas, shipbuilding, outdoors and marinas).
MOLDED GRATINGS Micromesh, “high heel proof” gratings, are available for pedestrian areas and raised floors; square mesh gratings are specific for heavy load floors and are easy to install; rectangular mesh gratings are ideal for fences; covered gratings are distinguished by their lightweight and the high mechanical properties.
HIGH CHEMICAL RESISTANCE GRATINGS Our high chemical resistance gratings, manufactured with isophtalic or vinylester resins, additive free, are appropriate for use in chemically aggressive environments. The structural shape is designed in order to achieve a greater glass fiber covering.
CONDUCTIVE/ NON STATIC GRATINGS
M.M. gratings can also be supplied in conductive or non-static dissipative versions to avoid developing electro-static charges.
COMPODECK M.M. Compodeck is the only composite grating classified L1 according to U.S. Coast Guard regulations. It’s an innovative product that adds fire resistance to the composite’s usual properties – a characteristic that other composites can’t boast. This particular grating has been designed for the shipbuilding sector and complies with the high technical and safety standards required by the U.S. Coast Guard.
MARINADECK Thanks to the Q-paint finishing, the Marinadeck is an original and innovative grating suitable for foot traffic, including bare feet (anti-skid according to DIN 51097). It’s recommended for outdoor areas, marinas and seafront.
PARAPETS M.M. offers parapets that are designed and built according to the EN ISO 14122 standard and guarantee maximum safety.
VERTICAL LADDERS Our ladders are built according to the EN ISO 14122-4 standard and are tested according to the EN 131 standard. They are manufactured with FRP profiles and rungs fixed together with FRP pins. The safety cage is completely made with FRP profiles and assembled with S.S. screws. The ladder fasteners are made with FRP or S.S. brackets.
MANHOLE LADDERS We supply CE labelled ladders according to the EN 14396 standard that are designed and built for inspection manholes.
FENCES We offer fences supplied in prefabricated modules that are easy to install either outdoors or indoors, in plants and substations in order to avoid contact with undertension equipment.
GATES The gates are prefabricated in our works and could be supplied in two variations: double wing vehicle entrance with manual locking – with CE labelling according to the UE 305/2011 Regulation for the sale of construction products that have been tested according to the UNI EN 13241-1 standard; pedestrian single or double wing gates with manual locking.
PROFILES AND THEIR APPLICATIONS The M.M. pultruded profiles are available in isophtalic resin or others on demand. They combine a high chemical resistance and a remarkable mechanical resistance in addition to outstanding workability. The profiles are also available in the self-extinguishing version or in class E23. The features are certified according to the EN 13706 standard for their use where high mechanical performance is required. They are available in various shapes for the construction of structures, parapets, ladders, stairways or as frames for the installation of coverings. The standard colors are yellow and grey but other colors can be made on demand.
STRUCTURES FOR ACCESS TO MACHINERY We build ladders, gangways and platforms with pultruded profiles, gratings and S.S. accessories according to the EN ISO 14122 Lastandard. M.M. opera in diversi mercati nel mondo, direttamente o indirettamente attraverso la propria rete di agenti can be supplied in differentnel e They distributori, con prevalenza dimensions according to the mercato europeo, presentandosi customers’ they settore are alsoed come leader needs; del proprio supplied pre-assembled interlocutore privilegiato per with l’alta complete parapet. qualità dei prodotti e dei servizi offerti.
STAIRWAYS, GANGWAYS AND PLATFORMS
THE ADVANTAGES OF THE FRP STRUCTURES LIGHTNESS: their light weight reduces the load on the weight-bearing structures and are easy to handle in construction yards. This reduces installation time and costs. NO MAINTENANCE: the servicing costs will be considerably reduced. SAFETY: our gratings guarantee an anti-skid floor according to the DIN 51130 standard. DIELECTRIC PROPERTIES: grounding is not necessary. ADVANTAGEOUS: in extremely harsh environments, they could replace S.S. with substantial money savings.
ENGINEERING AND TECHNICAL SERVICES The access to machinery or to a part of a plant may require a specific solution: our structures are the answer. M.M.’s technical department takes over the management of the customer’s enquiries with on-site inspections and works out the best solution respecting the safety standards and the clients’ needs. A 3D modelling system, advanced calculation softwares are used for the structural dimensioning according to the Italian and International standards in force. The construction drawings and the installation instructions complete the customer service, ensuring that M.M.’s structures are installed correctly and last for years.
OTHER PRODUCTS AND ACCESSORIES
M.M. has the same attention to its products and to its related accessories. We offer fixing and connecting fittings, fixed and adjustable supports for gratings as well as a wide range of accessories that simplify the installation and improve the FRP structures’ safety. We also offer a large selection of frames and angle profiles. They are light and easy to cut so they turn out to be simple and fast to install. Steps, step coverings and laminate plates are also available.
GRATING ACCESSORIES S.S. AISI 316 fixing and connection fittings are available as well as fixed and adjustable FRP supports for raised floors.
STEP COVERINGS We supply step coverings with front plate for steel or concrete stairways. It’s a fast and simple way to make them secure.
M.M. can supply custom cut gratings for basic anti-skid steps and steps with front plate which guarantee maximum safety for workers.
STEPS LAMINATED PLATES
The FRP laminate plates can be supplied with a quartz anti-skid certified surface according to the DIN 51130 standard. They can be cut and shaped as needed. Grey is the standard color but they could be produced in other colors. They are mainly used as cover boards and walkway coverings.
THREADED RODS
For the total safety against corrosion, we supply FRP bolts and nuts. These rods could be used as insulating and non-magnetic tie bars. Grounding is not required. They guarantee a remarkable tightening and a high cutting resistance just like a high axial stress.
CERTIFICATED PROPERTIES QUALITY SYSTEM
Quality Management System Certificate ISO 9001:2008
DNV
PRODUCT CERTIFICATE
“FRP molded gratings designed for indoor and outdoor use in construction”
ZAG - Slovenian National Building and Civil Engineering Institute (Slovenia)
“FIRE RETARDANT ANTISKID GRP GRATING”
BUREAU VERITAS
TYPE APPROVALS
“FIRE RETARDANT ANTISKID GRP GRATING” “CONDUCTIVE FIRE RETARDANT ANTISKID GRP GRATING”
REGISTRO ITALIANO NAVALE (RINA)
MECHANICAL AND DURATION PROPERTIES CERTIFIED ACCORDING TO
DIN 24537-3 norm: Gratings used as floor covering – part 3 EN 1990:2004/A1:2006 norm: Eurocode – basis of structural design
ZAG (Slovenia)
REACTION TO FIRE
SELF EXTINGUISHING classification according to the norms: EN 13501-1_2007 level B fl – s1 ASTM E84-98 spread ≤ 25 AFNOR NFP 92-501 level M2 DIN 4102 -14 level B2 AFNOR N FP 92-503 level M1 ASTM D635 UL 94 level V0
ZAG (Slovenia) LAPI (Italy) INTERTEK (USA) LNE (France)
FIRE RESISTANCE
ISO 834 - 15 minutes resistance
CSI (Italy)
ELECTRIC RESISTANCE AND RESISTIVITY
Insulating gratings: EN 61340-2.3 norm par. 8.1 and 8.2 ref. to ISO 1853, IEC 60167, HD 568 S1 – excellent insulator according to the safety norms IEC 61340-4-5 norm - CEI 64-4/8/6 par. 6.12.5 – IEC 60167 – HD 568 S1: excellent insulator according to the safety norms Conductive gratings: EN 61340-2.3 Par 8.1 and 8.2 – IEC 61340-4.1 Par. 5.1.2 with Ref. to ISO 1957 – IEC 61340-4.5 CEI 64-4/8/6 Par. 6.12.5 – IEC 61340-5-1 with Ref. to IEC 61010-1 excellent conductor Non-static dissipative gratings: EN 61340-2.3 Par 8.1 and 8.2 IEC 61340-5-1 – IEC 61340-4-3 – IEC 61340-4-5 – CEI 64 In compliance with the norms for non-static dissipative materials
GIUSEPPE D’INTINO (Italy)
DIELECTRIC STRENGTH WITH RATED VOLTAGE
ASTM D 149-97a norm; very low power absorption according to the safety norms
GIUSEPPE D’INTINO (Italy)
“ANTISKID SURFACE DIN 51130”
CENTRO CERAMICO BOLOGNA (Italy)
“ANTISKID FEATURES” according to the BS7976-2 and EN13036-4 norms
ZAG (Slovenia)
ANTISKID PROPERTIES AGEING RESISTANCE
Ageing test made with UV lamp according to the ASTM G154-06 norm and CATAS (Italy) passed with 5 points on the grey range and without evident defects
EXPOSURE TO HEAT, COLD AND HUMIDITY CYCLES
Passed the UNI EN ISO 9142/04 norm (n.21 cycles type D3) with no residual defects
CATAS (Italy)
SANITARY CONFORMITY STATEMENT FOR DRINKING WATER (FRANCE)
Norm: AFNOR XP – P 41 -250: CONFORMING
CARSO (France)
WATER CYCLE WASTE TREATMENT PLANTS ENERGY INFRASTRUCTURES RAILWAY INFRASTRUCTURES CHEMICAL AND PHARMECEUTICAL INDUSTRY PETROCHEMICAL INDUSTRY GALVANIC INDUSTRY MANUFACTURING INDUSTRY FOOD INDUSTRY SHIPBUILDING AND OFFSHORE STREET FURNITURE OUTDOOR AND MARINAS
APPLICATIONS
Graphic design
Interlaced srl
M.M. S.r.l. OFFICES, ADMINISTRATION AND PRODUCTION PLANT Via Antonio Zanussi, 300/302, 33100 Udine - Italy ph. +39.0432.522970 - fax +39.0432.522253
PRODUCTION PLANT Via Antonio Zanussi, 311, 33100 Udine - Italy
[email protected] - P.Iva / C.F. 00477620306
www.mmgrigliati.com
