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Mapeplast SF - Mapei

Mapeplast SF - Mapei

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<strong>Mapeplast</strong> <strong>SF</strong>Silica fume-basedadditive withpozzolanic actionDESCRIPTION<strong>Mapeplast</strong> <strong>SF</strong> is a powdered additive with pozzolanicaction to be used in combination with plasticisers orsuper-plasticisers for high quality mortar, grout andconcrete with thixotropic, plastic, fluid or super-fluidconsistency.WHERE TO USE<strong>Mapeplast</strong> <strong>SF</strong> can be used for the followingapplications:• High quality thixotropic mortar that is resistant underthe most severe environmental aggressions (for newstructures and the restoration of deterioratedstructures).• Special concrete and grout to be applied with a pump.• Mortar and grout to be applied with a spray gun.Some application examples• Repair of deteriorated concrete structures attacked bysulphates and chlorides (dry docks, highwayviaducts).• Tunnel linings executed using sprayed mortar or grout.Because of their excellent thixotropic and adhesiveproperties, sprayed mortar or grout prepared with<strong>Mapeplast</strong> <strong>SF</strong> often does not require the addition ofsetting accelerators that can weaken the quality of thefinal product, as is well known.• Underwater concrete with extremely high cohesionand resistant to washout.• Repair of canals and hydraulic projects in general.Mortar and concrete prepared with <strong>Mapeplast</strong> <strong>SF</strong> canresist leaching because the silica fume reacts with thefree lime produced by the hydration of the cement.TECHNICAL CHARACTERISTICS<strong>Mapeplast</strong> <strong>SF</strong> is a dark grey-coloured powdercomposed of amorphous silica in the form of sphericalsub-micron sized granules.The extremely small size of the graded particles (manyof them smaller than 0.1 mm) enables the sphericalgranules of <strong>Mapeplast</strong> <strong>SF</strong> to lodge in the intersticesbetween the larger sized cement granules (0.1 to100 mm).As a result the cement matrix is denser and morecompact.Using a combination of <strong>Mapeplast</strong> <strong>SF</strong> and the varioussuper-plasticisers of the Mapefluid product line,concrete can be obtained with a range of rheologicalproperties that is waterproof in the fresh state anddurable after hardening.HOW TO USEPour <strong>Mapeplast</strong> <strong>SF</strong> into the cement mixer together withthe other ingredients of the concrete (cement,aggregate, and water) in an amount varying from20 to 60 kg/m 3 , depending on the type of materialdesired. To obtain maximum product performance,<strong>Mapeplast</strong> <strong>SF</strong> should be combined with a superplasticiseror plasticiser because the small size of theparticles require a greater amount of water.[sche4] 780 Inglese - 1 (MAPEPLAST <strong>SF</strong>) (19.04.2001 - 5ª Bozza Corr. Ciano Digitale/Pell.)


<strong>Mapeplast</strong> <strong>SF</strong>TECHNICAL DATA (typical values)PRODUCT IDENTIFICATIONConsistency:powderColour:dark greyMass in pile:0.6 kg/lPrincipal action:pozzolanicSecondary action:fillerDry solid content: 100%Storage:12 months in a dry place in original sealed packagingSpray application ofmortar admixed with<strong>Mapeplast</strong> <strong>SF</strong>Hazard classification according to EEC 88/379:noneCustoms class: 3824 40 00PERFORMANCE DATA OF MAPEPLAST <strong>SF</strong> IN CONCRETE *Dosage of <strong>Mapeplast</strong> <strong>SF</strong> (kg/m 3 ): 0 20 40 60W/C ratio: 0.60 0.60 0.60 0.60W/C ratio + <strong>Mapeplast</strong> <strong>SF</strong>: 0.60 0.55 0.53 0.50Workability:– initial slump (cm) 20 19 18 16– slump after 30 min. (cm) 14 14 13 11Mechanical resistance to average compression(MPa) after:– 1 day 6 6 7 7– 3 days 16 17 19 19– 7 days 22 25 28 29– 28 days 29 36 42 51Water penetration (mm) according toDIN 1048 after 28 days of curing: 30 15 10 5“Impermeability” to water according toUNI 9858 and ENV 206: no yes yes yesDurability: resistance of the concrete 1 1 1 1to UNI 9858 and ENV 206 environmental 2a 2a, 2b 2a, 2b 2a, 2bexposure classes: 4a 4a 4a, 4b5a 5a 5a, 5b* This sample data represents average values recorded using concrete with 320 kg/m 3 ofCEM II - A/L 32.5R cement, with alluvial aggregate (max. diameter: 30 mm). For environmentalexposure classes 2b, 3, 4b, 4% by volume of air in the form of micro-bubbles must be entrained.


It is also important to disperse the granules of<strong>Mapeplast</strong> <strong>SF</strong> as well as possible. For thisreason, mixing for at least 5 minutes isrecommended.RECOMMENDATIONS• Do not use <strong>Mapeplast</strong> <strong>SF</strong> for mortar andconcrete that is not thoroughly mixed: atleast 2 minutes in vertical mixers and atleast 5 minutes in job-site mixers and mixertrucks.• In order to disperse the micro-silicagranules, <strong>Mapeplast</strong> <strong>SF</strong> can be poured inthe water for the mix, especially for classS 1 and S 2 consistency concrete.Reminder: for waterproof concrete, thewater/cement ratio should be no higherthan 0.55.Compatibility with other products<strong>Mapeplast</strong> <strong>SF</strong> has no plasticising action andmust therefore be used in combination withplasticisers and super-plasticisers of theMapefluid, Mapemix and <strong>Mapeplast</strong>product lines.<strong>Mapeplast</strong> <strong>SF</strong> is also compatible with:• <strong>Mapeplast</strong> PT1 air-entrainer for concreteresistant to freeze/thaw cycles;• Expancrete expanding agent for shrinkagecompensatedconcrete;• Form Release Agent DMA 1000,DMA 2000 and DMA 3000 for formworkconcrete;• Mapecure E curing compound forprotection against rapid evaporation of themix water in concrete without formwork(floors).DOSAGE<strong>Mapeplast</strong> <strong>SF</strong> should be used in a dosageof from 20 to 60 kg per m 3 of concretedepending on the characteristics required.PACKAGING<strong>Mapeplast</strong> <strong>SF</strong> is available in 20 kg bags.Also available in 10 kg water soluble bags.Available in large bags or in bulk on request.STORAGEProtect from extremes of temperature andespecially from moisture.WARNINGN.B. Although the technical details andrecommendations contained in this reportcorrespond to the best of our knowledge andexperience, all the above information must, inevery case be taken as merely indicative andsubject to confirmation after long-termpractical applications; for this reason, anyonewho intends to use the product must ensurebeforehand that it is suitable for theenvisaged application. In every case, the useralone is fully responsible for anyconsequences deriving from the use of theproduct.


<strong>Mapeplast</strong> <strong>SF</strong>La riproduzione di testi, foto e illustrazioni di questa pubblicazioneè vietata e viene perseguita ai sensi di legge (GB) A.G. BETAAll relevant referencesof the product are availableupon request.780-4-2001BUILDING THE FUTURE®CERTIQUALITYNo. 250/1ECECO MANAGEMENTANDAUDIT SCHEMEThis site operates under anenvironmental managementsystem. Its environmentalperformance is disclosed to thepublic in compliance with EMAS,the European Community EcoManagement and Audit Scheme,Registration N° I-S-000019.OCCUPATIONAL HEALTHAND SAFETYMANAGEMENT SYSTEMSMAPEI PLANT INROBBIANO DI MEDIGLIA (MI)OHSAS 18001 StandardCertificate No 3586

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