you need
  • - early strength cement;
  • - epoxy resin and hardener with nozzles;
  • - trowel;
  • - Building a hairdryer;
  • - metal brush.
Prepare for sealing cracks cementitious materials.They represent a ready-mix, which should only add water.They are based on early strength cement.Mix the dry blend with water to form a pasty mass.Since the hardening process happens quite quickly, it cracks should be filled immediately.No need to prepare a greater amount of material than is required for immediate use.
Prepare crack.Remove the crumbs from her concrete chisel.If a large amount of crack, then expand it from the bottom to secure "the castle."Take a trowel and f
ill the defect space solution, then smooth out the surface.If damages are sufficiently large and in concrete blocks or elements, this method is also applicable.Work start with clearing the site of injury.Wear safety glasses and take a "fighting" a chisel, it is more usual.CLEARED crack rinse well with water jet pressure.Wait until everything is dry inside.
Make a solution.It is based may be any hydraulic cement or a mixture of Portland cement, sand and water in a ratio of 1: 3: 2/3.Fill the damage so that the solution above the surface.When he starts to set, take a trowel and carefully smoothen it.Then cover the surface of the hard tissue and keep the site wet for a few days.
Take epoxy.It is most effective for small (3-5 mm) of cracks in reinforced concrete.Before applying it dry surface damage.If it is wet or the water seeping through a crack, use a hair dryer building.After removing the water wait another 30 minutes to ensure its complete absence.Then proceed to the closing of cracks.The epoxy resin consists of two parts: a nozzle and liquid resin packed into a tube.Work is performed in protective glasses and gloves.
Take the brush and clean the metal portion and the area around it.Purge air crack that it does not remain concrete crumbs.Dry the inside hairdryer.Attach the nozzle, inserting them into the crack every 30 cm, the count start by 30 cm from the ground or the floor.
Mix on a piece of cardboard with a spatula epoxy resin and hardener and apply the solution to the bottom surface of each nozzle, and then paste it over the crack.Work was carried out in rubber gloves.Wait until the resin hardens.
Mix the second portion of the two-component paste and put it on the surface of the crack.Firmly press it into the damaged area.The coating thickness should be in the region of 3 mm, and then rub the paste around the crack.Once it has hardened, inject liquid epoxy resin in the crack, according to the manufacturer's instructions, starting with the bottom nozzle.Then, one by one, closing the nozzle cap, start filling in the following location above.If the crack width larger than 3 mm, for each nozzle will have several tubes.After solidification during the 5-day, chip off the nozzle.