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Thank you for your input I really appreciate your time. I should explain myself better. I'm trying to be brief. I have a soils report. The pertinent info boils down to: the water table is 25' below excavation of the sump pit (deepest part of pit). Soil consists primarily of fine grained...

My main question is: Does anyone have experience with Sodium Bentonite or ICW as a waterproofing method? And secondly, does anyone know the risks of not waterproofing other than a corrugated backing?

I am building a pit to hold some huge, uncommon, expensive machinary that is very interesting to discuss but of little importance to my question, so I will omit that info. Pit dimensions: 12-20 ft deep 50' x 32' L x W wall thickness 16" Slab depth 2'9" The project is located in the East bay...

The industry standard for minimum cure time prior to epoxy coating of concrete is 28 days. Does anyone know of a coating where a shorter time will do? I'm just needing the coating for housekeeping issues. I know of water based coatings and would assume the moisture wouldn't be a problem. I...