Chemical Grouting | Soil Stabilization
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Chemical grouting | pressure grouting is an excellent alternative to deep foundation repairs in the case of unconsolidated granular soils below foundations.
Chemical grouting increases the strength and stiffness of granular soils by transforming the soil into solid stone-like masses by filling the voids with a low viscosity, non-particulate solution grout. The chemical grout is pressure-injected through a pipe into cohesion-less soils. As it permeates the soil, the chemical grout binds soil into a solid mass and improves the soil’s bearing capacity. Chemical grouting is best suited for clean sands and or gravel. This soil stabilization procedure offers the advantages of being easily performed where access and space is limited, and where no structural connection to the foundation being underpinned is required. A common application of chemical grouting is to provide both excavation support to prevent settlement of existing structures adjacent to an excavation.
Permeation Grouting (chemical and particulates) are both used as an economical technique to stop leaks in mines, tunnels, underground tanks, elevator shafts and around underground conduits and pipes. Permeation grouting is injected through holes placed along cracks, joints or along water path zones. The grout injection can be done from the inside of structures or from outside depending on access to the work area.
For over 35 years GSI has performed reliable, top quality grouting, soil stabilization and foundation support services helping our client for (in the field of) ground improvement and foundation underpinning.
Chemical grouting is that it is generally faster than underpinning repairs or other deep grout injection processes due to the compact equipment involved and the ease of installation. Because of these factors, fast reaction times and minimal surface disruption, work can easily be scheduled and planned to accommodate an area’s or structure’s normal use.
Chemical grouting is commonly used for:
- Underpinning of existing foundations
- Creating support walls for excavation
- Stabilizing soils for tunneling
- Creating water-cutoff walls
Common areas for chemical grouting are pool decks, sidewalks and beneath slab foundations.
Geotech Services | Quality Assurance
GSI offers a full range of geotechnical grouting techniques for ground improvement and foundation repair solutions. We are a trusted specialty contracting firm with over 35 years of experience in the stabilization of existing buildings and the improvement of construction sites.
Our staff of experienced and trained engineers has extensive knowledge and experience in soil engineering. We work with home owners, insurance companies, engineers, and developers on residential, commercial and government projects. GSI projects have ranged from individual single-story homes to multi-story buildings and structures of all types. We work closely with our clients in order to provide effective solutions to their structural soil problems.
Contact GSI for questions regarding soils, foundations, grouting, and other geotech services.
Geotechnical Stabilization, Inc. | California State Licence# 397831
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