A mortar mix is taken for granted in construction, but without it there would be fewer large buildings in today’s society.
Portland cement was commonly used more than lime mortars during the 1900’s. Restoration and repair work carried out during this time involved existing lime mortar masonry being applied with Portland cement. But through unfortunate situations construction projects realised that both materials used together were opposed to their material characteristics such as flexibility and moisture/vapour permeability. This will lead to symptoms of soluble salt crystallisation, cracks and dampness, and extreme temperature disruption.
After retrieving samples, laboratories now analysis and evaluate test results to identify the exact nature and means of the production of lime based mortars and older historic materials. This process is vital to the construction industry towards repair and conservation projects. A laboratory can now replicate older mortars and better use of a lime based material. With today’s technology and scientific departments we can understand the reaction within mortars which will allow suitable compatibility in performance and characteristics, to aesthetics and simple colour matching. With this research we can produce the exact formation and type of mix proportions, fine aggregate, reaction of additional material, mixing and placing methods.
Clients are now requesting for testing of existing mortars used in various structures from country and period homes, historical churches and mills, to bridges and underground reservoirs.
If you are thinking of using such mortar for restoration and repairs to your home or premises and need assistance please contact us on 02890 692 444.