Rasina epoxidica bicomponenta pentru injectari in microfisuri la temperaturi scazute si suport umed MAPEI EPOJET SLV

Limba: Engleza

30 afisari

Tip documentatie: Fisa tehnica

Pagina 1 - Rasina epoxidica bicomponenta pentru injectari in microfisuri la temperaturi scazute si ...

V L S t e j o p E EN 1504-5 IN COMPLIANCE WITH EUROPEAN STANDARD EN 1504-5 CONCRETE INJECTION Two-component injectable epoxy resin with very low viscosity, including at low temperatures, for sealing cracks, including in wet substrates WHERE TO USE • Monolithic crack filling. • Bonding steel plate to concrete (plate bonding technique) by low pressure injection. Some application examples • Structural repairs to cracked beams, pillars and floor slabs by low pressure injection. After mixing, Epojet SLV has the consistency of very low viscosity liquid and has the capacity to penetrate easily into micro-cracks. Epojet SLV hardens without shrinking, including on wet substrates, and once hardened it is impermeable to water and chemical agents in the surrounding atmosphere. • By injection to strengthen beams and floor slabs using the plate bonding technique when the steel plates are folded along the edges and it is not possible to use Adesilex PG1 or Adesilex PG2. Epojet SL

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V has excellent dielectric properties and high mechanical strength and adheres perfectly to concrete and steel. • Repairs to facades, coatings and detached architectural features by injection. • Sealing cracks in cementitious screeds. Epojet SLV complies with the principles defined in EN 1504-9 (“Products and systems for protecting and repairing concrete structures: definitions, requirements, quality control and conformity assessment. General principles for the use of products and systems”), and the minimum requirements of EN 1504-5 (“Concrete injection”). • Injection into concrete structures to repair cracks caused by earthquakes, settling, impact damage, etc. RECOMMENDATIONS • Do not use Epojet SLV if the temperature is lower than +10°C. TECHNICAL CHARACTERISTICS Epojet SLV is an epoxy adhesive made up of two pre-dosed components (component A resin and component B catalyser) which must be mixed together prior to use. • Do not apply Epojet SLV on dusty,

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crumbling or weak substrates. • Structural consolidation and repairs to roads and underground, civil and industrial structures and members with cracks. • Do not use Epojet SLV for sealing expansion joints. LV S t e j o Ep APPLICATION PROCEDURE Substrate preparation Before injecting the product, the surface of the concrete must be perfectly clean and sound. Remove all crumbling and detached parts and all traces of dust, cement laitance and paint by brushing or sandblasting. Remove all concrete impregnated with oil or grease. Positioning the steel strengtheners and injecting the product Remove all traces of rust and grease from the strengthening plates by sandblasting to a bare metal finish (grade SA 2½). After cleaning the steel plates, fasten them in place with anchor bolts and fasten the injection tubes in place with Adesilex PG1 or Adesilex PG2 (the workability time of Adesilex PG2 is longer than that of Adesilex PG1). Use the same product to seal the gaps between the con

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crete and the steel strengthening plates. When the Adesilex PG1 or Adesilex PG2 has hardened inject Epojet SLV through the injector tubes. Repairs to cracked concrete by injection Drill a series of 8-9 mm holes along the sides of the cracks at an angle so they go through the cracks. Carefully clean the area with compressed air to remove all traces of dust deposits formed during the drilling operation. Insert special injector tubes into the drilled holes and seal them with Adesilex PG1 or Adesilex PG2. If it is not possible to drill holes in the concrete because the cracks are too small or too widely distributed, use injectors with flat ends fastened in place over the cracks with anchor bolts or Adesilex PG1 or Adesilex PG2. Wait until the Adesilex PG1 or Adesilex PG2 has hardened (at least 12 hours) and inject compressed air to make sure the circuit is completely open. Preparation of the product The two components which make up Epojet SLV must be mixed together. Pour component B into c