Grouting a Random Rubble Stone Basement Wall
Grouting a Random Rubble Stone Basement Wall
(OP)
I am looking for the best way to grout a basement rock wall. I am proposing a plywood form braced to the slab and 1/2 inch off the wall. I am specifing a high strength fluid flowing Vexcon or Sika grout to be poured in over the top of a seven foot high form. Hopefully by hammer tapping the plywood it will fill all the voids in the stone wall. Currently the 90 year old wall has no mortar and must be underpinned. Has anyone ever used pressure injected grout or gunite in a wall like this. Any other suggestions will be appreciated.





RE: Grouting a Random Rubble Stone Basement Wall
RE: Grouting a Random Rubble Stone Basement Wall
RE: Grouting a Random Rubble Stone Basement Wall
There is extensive development in the code acceptance of SCG) and project applications for the grout by the National Concrete Masonry Association (NCMA) and the admixture suppliers. The grout is intended for concrete masonry where the excess water is benficial and can be handled by the absorption by the units. The thrust of the development is to provide a method of high lift grouting without the associated problems created by successive lower lifts. The ability to provide quality grout without the bridging you may encounter with the 1/2" clearance may provide an option.
The SCC may be more applicable to your situation since your wall MAY have low absorption, but the aggregate size used in the testing may limit applications. The National Ready Mix Concrete Association (NRMCA) has information.
These products may fit into your project and provide pouring from the top.
RE: Grouting a Random Rubble Stone Basement Wall
RE: Grouting a Random Rubble Stone Basement Wall
RE: Grouting a Random Rubble Stone Basement Wall
I am really specifing a "Structural Grout Job" for future underpinning work all to be done by a Concrete Contractor.