cracking

Wall Tie Installation

Newman’s have completed a wall tie replacement repair to a property purchased by a private home owner. The home owner became concerned after the purchase as short horizontal cracks were appearing in the outer leaf of the brickwork as well as some of the bricks lifting and rotating.

Wall Tie Installation

Newman’s carried out a wall tie survey using a visual survey and an endoscope survey to determine the condition of the existing wall ties. The wall ties were found to be in a poor state with high levels of corrosion and inadequately spaced.

Current Wall Ties Corroded and Wrongly Spaced

Our specification included the installation of Twistfix’s patented CD 9mm stainless steel Remedial Wall Tie. Installation is a simple process with the helical tie being installed through a 6mm pilot hole.

 

Isolation of the tie is carried out by locating the existing wall tie and encompassing it with a clan sleeve also supplied by Twistifx. With sleeves in place and the ties isolated re-pointing of the cracked masonry can be carried out and tie holes filled with a mortar to match the existing bricks.

Replacing Current Wall Ties

All of our repair schemes are covered by our own guarantee and for consumer protection we are also members of Insured Guarantees Limited enabling us to provide you with an insurance backed guarantee, which for this particular project guarantees the installation for 20 years even if Newman’s are no longer operating.

 

 

 

Author: Jon Newman
Posted:
Categories: Building and Structural Repairs, Current Projects, Wall Ties

Crack Repairs, London

Cracking View at This North London Warehouse

Newman’s were called upon by a commercial property management company who own various trading estates across London.

Many trading estates in London are still Victorian brick built structures that have stood the test of time and are still fully functional. The masonry construction of most of these structures is built using 13 inch solid masonry laid in English bond using lime mortar. This type of construction is a strong bond which will allow slight movement.

We were called out to attend site as a matter of urgency due to the crack rapidly widening and in some places was over 10mm’s wide. We carried out a structural survey free of charge the same day and designed a repair specification that would restore the structural integrity without any major disruption to the business operating in the building.

Crack Repairs, North London
Crack Repairs, North London

We used our own mobile scaffold tower alleviating the need for traditional scaffolding enabling us to be on site just two days after the initial survey.

To repair the crack in the brickwork we installed 14 No masonry beams across the crack which was drilled back into the left and right pillars. This method of crack repair not only crack stitches but distributes the loads imposed and distributes them across the masonry preventing further cracking.

Crack Repairs, North London
Crack Repairs, North London

The parapet wall was secured using 1.5m grout ties which were installed vertically down through the brick work which saved huge costs in a rebuild.

The repair was guaranteed against failure for 10 years. The repairs lasted only 2 days allowing the business to remain fully operational.

Author: Jon Newman
Posted:
Categories: Building and Structural Repairs, Current Projects, Victorian Property Information

Subsidence Repairs

Subsidence is a common structural defect which puts structures in serious jeopardy and at risk of collapse.

Subsidence is common across the South East of England and in areas where the ground conditions are formed up of clay. Clay absorbs lots of moisture during wet periods causing it to swell and lift the foundation and once the ground dries it shrinks back to its original state or smaller which causes the foundation to drop.

Subsidence Repairs

There are other causes of subsidence such as vibration from machinery, road traffic, trains etc. As well as vibration other factors such as changes in the water table, failed drainage or incorrect foundation types and depths.

Newman’s are specialists in carrying out subsidence repairs using bed joint reinforcement and piling solutions in order to repair structures with minimal disruption.

Subsidence Repairs Oxford

Here is our latest subsidence and structural repair solution for a recent project in Oxford.

Author: Jon Newman
Posted:
Categories: Current Projects, Subsidence And Heave