Guelph, Ontario, Canada
2008
A new multiple story building was constructed inside of a partially torn down, century old historical building. It was required to, in-part retain/preserve the existing masonry façade and outside walls. The portion of the 18 inch thick masonry wall located below grade at the basement level, was porous, poorly cemented together, cracked and at the verge of collapse. The masonry wall was parged (as this section would not be visible to the public) and grouted with regular cement based grout. The porosity (based on the actual grout takes) was calculated to be 25%. The underlying soils below this wall were also stabilized. This was done utilizing driven sleeve pipes and performing a permeation grouting program with sodium silicate based grout and cement based suspension grout.
ECO designed and directed (in a hands-on capacity) the grouting operation for Demikon Construction Ltd.