Pressure grouting and grout mixing are associated with foundation stabilisation procedures. The term ‘pressure grouting’ refers to the injection under pressure of a neat cement and water mixture into voids between soil particles. It provides ground stabilisation and increased dynamic / compressive strength of sub soils. Its resistance to water flow and seasonal moisture variations should be high and pressure grouting combined with appropriate steel reinforcing resembles micro piling in certain ground conditions.
The occurrence of foundation deterioration is frequent on a nationwide scale. As a result pressure grouting action was agreed between Insurance representatives and Engineers, as an economical solution to arresting further movement in houses already affected. Accordingly the technique has been used for up to twenty years now and has proven to be a major success.
T.A.L. Construction has completed approximately 3,000 underpinning projects over an eighteen year period using the pressure grouting technique. The pressure grouting technique is so successful that we have not had to return to any of these projects.
When executed in the usual fashion, the pressure grouting process is effective to depths of two (2) metres beneath the foundation top only. There are many other foundation remedial solutions where the ground conditions are unsatisfactory below two (2) metres. These include various types of Foundation Pile & Beam arrangements.
If you are in the public sector, a developer or a contractor, and you are considering working with us in relation to underpinning: pressure grouting and grout mixing, contact us in our Dublin office on 01 6310300 or in our Cork office on 021 4345999.