News / Salt Attack and Rising Damp - A Guide to Salt Damp in Historic Buildings
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Jan 20, 2014
Rising Damp and Salt Attack - free PDF
Read more →We have recommended this publication on our blog previously: Salt Attack and Rising Damp - A Guide to Salt Damp in Historic and Older Buildings. Salt attack is as destructive to masonry as termites are to timber, and is prone to occur on any building site in Australia due to our soils and extreme weather patterns. As salt is dissolved by water and absorbed by masonry, the water evaporates, leaving behind more and more salt with each wet cycle. Salt crystallises to expand at extraordinary pressure (> 200MPa) to easily turn stone, bricks and mortar to dust. As outlined...
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Apr 25, 2013
Recommended Reading: Salt Attack & Rising Damp in Buildings
Read more →This publication is a great reference for builders and for anyone considering building or renovating - particularly for understanding rising damp in older houses. Salt can be an incredibly destructive compound, and understanding how salt damp behaves is the first step in designing a solution to control and prevent salt attack. Efflock is an ideal product to prevent the transport of salt throughout masonry. Efflock is excellent for use in new construction to prevent efflorescence and damp problems in tiled patios and wet areas, but can be used in many different applications such as render and brick mortar. It can sometimes however,...
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Oct 27, 2012
Efflock test with salt water samples
Read more →We've put Efflock to the test with exactly what you should not do to concrete! Pictured are two samples of 4 sand: 1 cement each made with 140mls of straight sea water from Coogee Bay off the coast of Sydney. They have been cured and placed in a dish of water to test their water repellency. In the foreground is the Efflock sample. Even with salt water in the concrete mix there is clearly no wicking effect! Without water able to dissolve salts and free lime, efflorescence cannot occur.