Crack Repair - in masonry and render
Epoxy Putty Method of crack repair
Cut out the cracks with a masonry grinder to form square edged slots and remove all dust and debris with a vacuum or compressed air.
Apply Epoxy Primer liquid and whilst tacky lay in the non-shrink, structural epoxy - Mouldable Epoxy Putty.
This method is ideal for cracks in stone and concrete cills, steps, wall render, floors and decorative stone. Hand place and smooth with water.
Grind out the crack and remove the dust. Mix the two part putty in gloved hands and place into wet Epoxy Primer.
Epoxy Mortar Crack Repair Method
Cut out the cracks with a masonry grinder to form square edged slots and remove all dust and debris with a vacuum or compressed air.
Apply Epoxy Primer liquid and whilst tacky lay in the non-shrink, structural epoxy - Patching Mortar.
This method is ideal for larger holes in stone and concrete cills, steps, wall render, floors and decorative stone. Hand place using a trowel.
Patch Repair Kit - mix in the tub.
Modified Cement-based flexible Mortar Method of crack repair
Cut out the cracks with a masonry grinder to form square edged slots and remove all dust and debris with a vacuum or compressed air.
Damp thoroughly with fresh water and whilst damp lay in the non-shrink, structural mortar - W60 Mortar
This method is ideal for brick and stone walls, where you can use the special plastic mortar Tool to insert the mortar into the ground out slots.
After insertion smooth using pointing tool.
.
This W60 Mortar can be supplied as a Kit, with tools.
Crack Stitching - in stonework and brickwork - eliminate the reason for the crack first
Repair stepped cracking in brick or stone walls
Cut out every third mortar course up to 500mm each side of the vertical crack with an angle grinder, to 2/3rds of the brick/block or stone depth.
Remove all debris and dust, using a vacuum or compressed air. Inject a bead of Thixotropic Epoxy Resin or Thixo Rapid and insert the epoxy/glass rod.
Apply another bead to cover. Re-point in a matching material. Fill the vertical crack with a flexible filler or mortar.
Stepped cracking - check for cause - cut out and vacuum, then insert epoxy glass or stainless bar & resin.
Resin Options:
1. Thixotropic Resin in a cartridge - no slump, non run epoxy.
Single tube, standard, slow or fast set Thixotropic Resins.
Click to buy - Thixotropic Rapid or Thixotropic Standard or Slow Set
(Approximate initial set times at 20C - 3 to 6 minutes/60 minutes/3 hours)
2. Cement based non shrink flexible Mortar W60
This W60 mortar can be supplied as a Kit, with tools and stainless bars.
Bar Options: call us to discuss best options on 01626 872886
1. Epoxy Glass plain Bars - or 2. Stainless Twisted Bars
Tools: call us to discuss best options on 01626 872886
1. Mixing paddle - for use in an electric drill
2. Plastic Grouting Tool - for pushing W60 Grout into slots
3. Pointing Tool - for smoothing repairs into joints
4. Skeleton Gun - professional quality, for Thixotropic Resins
Crack Injection - in masonry and concrete
Drill a 5mm - 10mm diameter hole into the crack every 100mm to the depth of the layer. Inject Thixotropic Injection Resin until it exudes from the next hole.
Alternatively, Epoxy Primer/Consolidator liquid can be injected - it is a thin, runny liquid, so may be absorbed more readily.
Injecting cracks in masonry
Click to buy - Thixotropic Injection Resin or Epoxy Primer/Consolidator
Restraining bulging walls - anchor through into the timber floor joists
Lateral Wall Ties - the best treatment for external masonry, brick, and stone, that has bulged due to inadequate support.
Steps:
- Check the location of the joists by lifting a floor board
- Drill a test hole to check alignment is central to the joists
- Drill a hole every 500mm along the wall
- Drill through the masonry hole to create a pilot hole in the joists
- Screw the Lateral wall Ties into the joists until below the outer wall
- Inject resin to bond the Ties into the outer wall leaf
- Re-point the holes
Available in various lengths to suit different wall thicknesses.
Call us to discuss best options on - 01626 872886
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T: 01626 872886
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Site written by: David Moore
David Moore, B.A. (Hons.), C.T.I.S., C.R.D.S. Technical Author
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Other Property Repair Systems Sites:
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www.deck-treatment.co.uk - how to treat patio decks and yacht decks
www.dryrot.biz - how to kill Dry Rot in buildings
www.drywallandfloor.co.uk - membranes for lining damp walls, floors, basements and cellars
www.epoxy-info.co.uk - resins for repairing and sealing all types of masonry
www.fire-door-paint.co.uk - upgrade doors to 30 minutes fire resistance
www.joist-repair.co.uk - how to quickly repair joists and beams of any size
www.propertyrepairsystems.co.uk - our Home Site
www.steel-fire-paint.co.uk - treat steel with Intumescent Paint to provide fire protection
www.timber.org.uk - systems of repair, with step by step methods
www.timber-repair.co.uk - how to repair timber beams
www.woodworm-info.co.uk - how to kill and prevent woodworm and death watch beetle
www.woodworm-expert-advice-forum.org.uk - all your questions and our answers about woodworm treatment DIY