Fisa Tehnica Beton Clasa C25/30 TORCRET Technical Datasheet Concrete Type C25/30 SPRAYED CONCRETE

Clasa beton proiectata : C25/30 Designed concrete class: C25/30Ciment utilizat : IIAV42.5 R Cement: IIAV42.5 RGranula maxima : 8 Max size of aggregates : 8Raport maxim A/C: 0.45 Max W/C Ratio: 0.45Aditivi utilizati: superplastifiant & impermeabilizant Admixtures used: superplasticizer & waterproofAdaosuri utilizate: cu sau fara fibre Additives used: with or without fibersClasa de consistenta: S3 Consistency range : S3

Valoare consistenta [mm]: 100-150mm Slump Value [mm]: 100-150mmAgregate utilizate : de balastiera, conf. SR EN 12620 Aggregates: natural agg, according to SR EN 12620

Densitate aparenta in stare proaspata [kg/mc] 2,350-2,400 Fresh apparent density [kg/mc]: 2,350-2,400

Grosimea maxima a stratului [mm]: 40-60mm Maximum layer thickness [mm]: 40-60mmTip Transport: Autobetoniera Transport Type: Mixer Truck

Durata de transport: Transport Time:** va tine cont de perioada anului, temperatura exterioara, cerinte specifice ale santierului **will take into account the time of year, air temperature, specific site requirements

max. 35 min 10C > T < 30C max. 35 min 10C > T < 30Cmax. 50 min T< 10C max. 50 min T< 10C

Rezistenta la compresiune: Compressive Strenght:- la varsta de 3 zile : min. 15.0 N/mmp - at age of 3 days : min. 15.0 N/mmp- la varsta de 7 zile : min. 23 N/mmp - at age of 7 days : min. 23 N/mmp- la varsta de 28 zile : min. 30 N/mmp - at age of 28 days : min. 30 N/mmpAdancimea de patrundere a apei: Water penetration:- la varsta de 28 zile : max. 5 cm - at age of 28 days : max. 5 cm

Se poate pune in opera cu pompa: DA Can be discharged by pump: YES

Stratul superior: 10 mm in spatele armaturii Overhead faces: 10 mm past the rebarsFete Verticale: 20 mm in spatele armaturii Vertical faces: 20 mm past the rebars

Stratul superior: max. 30 mm Overhead faces: max. 30 mmFete Verticale: max. 50 mm Vertical faces: max. 50 mm

Clase de expunere : XC4, XF1, XA1 Exposure Class: XC4, XF1, XA1

In spatele si in jurul barelor de armare: Behind and around reinforcing bars:

Straturi suplimentare sau in cazurile in care nu exista armaturi: Additional layers or where there are no rebars:

When the shotcrete is applied on a concrete surface, it must be cleaned of impurities andsuperficial layer of grout, achieving a pronounced surface roughness.

Utilizarea unui aditiv accelerator de priza in mixul de beton torcretat permite utilizarea unui strat maigros ce urmeaza a fi aplicat in fiecare trecere.

The use of a sprayed concrete set accelerating admixture allows a thicker layer to be applied ineach pass.

Pregatirea corespunzatoare a suportului este esentiala pentru succesul aplicatiei de torcretare.

Aplicatii la interior si exterior, in elemente expuse la inghet-dezghet si in medii cu agresivitate chimica slaba

Indoor and outdoor applications, in elements subjected to freezing-and-thawing cycles and environments exposed to low chemical aggression

Constructii noi, transformari, reparatii Suitable for new construction, transformation and repair works

RECOMANDARI RECOMMENDATIONS

Captuseli si acoperiri - peste caramida, zidarie, pamant, piatra Linings and coatings - over brick, masonry, earth, stonePiscine, bazine de inot Swimming pools

Se recomanda a fi plasat intr-o singura operatie continua, cu o grosime totala a stratului de 40-60mm, construit in doua straturi de 20-30mm.

The sprayed concrete should be placed in one continuous operation, with a total thickness of40-60 mm, built up in two layers of 20-30 mm.

Pentru lucrari de reparatii, grosimea recomandata a straturilor pulverizate, fara utilizarea unuiaccelerator de priza in amestec:

For repair works, recommended thickness of sprayed layers - without the use of any type of setaccelerating admixture:

Suprafetele proaspat prelucrate vor fi protejate de intemperii: inghet, curenti puternici de aer,actiunea directa a razelor solare, ploi torentiale.

Good preparation is essential to sprayed concrete work.

Freshly prepared surfaces will be protected from extreme weather conditions: frost, strong aircurrents, direct sunlight, heavy rain.

Conform: CP012/1-2007; SR EN 206/1-2002; SR EN 13510-2006 According to: CP012/1-2007; SR EN 206/1-2002; SR EN 13510-2006

Curatarea suprafetei se face prin sablare, buciardare sau periere cu perii de sarma, urmate despalare cu jet de apa sub presiune si jet de aer comprimat.

Surface cleaning is done by blasting, bush hammering and brushing with wire brush, followedby washing with water under pressure and compressed air.

Betoanele vechi vor fi umezite abundent cu o zi inaintea realizarii aplicatiei de torcretare. Suprafatazidariei va fi mentinuta umeda cateva ore inainte de torcretare, aplicarea torcretului urmand a serealiza dupa uscarea suprafetei suport.

Old concrete will be thoroughly soaked the day before the spraying application realization.Masonry surface shall be kept moist for several hours before spraying, the application beingdone after surface drying.

In cazul aplicarii torcretului pe o suprafata suport din beton, aceasta trebuie sa fie curatata deimpuritati si de stratul superficial de lapte de ciment, realizandu-se o suprafata cu rugozitatepronuntata.

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CARACTERISTICI FIZICO-MECANICE

DOMENII DE UTILIZARE

PHYSICO-MECHANICAL PROPERTIES

APPLICATIONS

Reparatii, consolidari pentru beton deteriorat in poduri, podete, canalizare, baraje, garnituri rezervoare

Repair works, reinforcement for damaged concrete, bridges, culverts, drains, dams, gaskets reservoirs

Stabilizari de pante, sprijiniri subterane, tuneluri, galerii Slope stabilizations, underground supportings, tunnels, galleries