Auger Drilling Techniques | Percussion Drilling Techniques | OdexTM or TUBEX | Grout Pumps | Grout Sources
Vibratory Drilling Techniques (Crane & Mandrel) | Air Rotary or Rotary Wash | Grout Mixes | Slump Test

Another key element in developing and implementing a successful grouting program is the supply source for the grout. For many urban compaction grouting programs, truck mixers from a local concrete suppliers may provide a suitable grout supply source. There are several distinct advantages to using a truck mixer supply source. These include delivery of discrete batches, timing of deliveries of grout materials, containment of grout and transportability. 

Earth Tech's Batch Plant

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For local projects in the Tampa Bay area Earth Tech will normally utilize grout material manufactured from our own state of the art facility located in Northern Pasco County. This plant was constructed in 2007 and utilizes the most advanced equipment and technology available to the grout and concrete manufacturing business. This insures our clients will receive continuous material supply of the highest quality grout materials. To constantly monitor the quality of our grout mixes, we utilize the services of several local engineering firms. They routinely test our grout materials for strength and consistency to insure our clients that they will receive the highest quality grout material.

Earth Tech is the only company in Florida to provide our clients with this level of resources. Our investment of over $2 million means that our customers can depend on a solid material supply and that they can depend on us to be here in the future.

For large scale compaction grouting projects, an on-site mixing plant (figure 7) is often used. The on-site plant is capable of producing compaction grout materials on-demand. One distinct advantage of using on-site grout mixing is the increased control of the grout mix with respect to mix proportions and slump. The gates of the plant are initially calibrated to the design mix, and can be altered slightly throughout the project, should conditions warrant. Typically, two or three aggregate storage bins supply volumetrically metered amounts of sand, flyash or other materials to the mixing auger. Cement is supplied to the mixing auger concurrently from a separate bin. The dry materials are then blended together and volumetrically combined with water and homogeneously blended in the mixing auger. The blended grout is then conveyed to the compaction grout pump. 

Figure 7.  Mobile Grout Plant & mixing auger to pump, bulk cement tanker in background