Unlocking Opportunities

Precaster Elm Street Vault’s plant modernization includes installation of ACT/Wiggert HPGM 750 high shear counter-current mixer, shown here discharging into overhead crane bucket. Greater mixing intensity and batching accuracy has resulted in a reduction in cement use by up to 200 lbs per yard.

The compact mixer was a good fit for the space constraints of the producer’s batch plant.

Elm Street Vault general manager Dave Daigle enters commands using the plant’s new ACT SmartTouch Controls, which feature touch-screen interface, recipe storage and recall, fully automated operations and remote call stations.

Cost-effective batching system improvements at Elm Street Vault have resulted in a reduction in the time required to achieve stripping strengths, allowing forms to be stripped up to five hours sooner.

Elm Street Vault general manager Dave Daigle is proud of the successful plant modernization effort the firm carried out in 2012. The firm’s new batching system has eliminated cosmetic defects such as “bug holes” and provides many other advantages as well. On the left above is a product with numerous bug holes. On the right, a similar product produced with the plant’s new ACT/Wiggert mixer and automated controls, is defect free.

Another example of the dramatic improvement in the cosmetic quality of the products produced by Elm Street Vault using its modernized concrete batching system. On the right above is a manhole produced with the firm’s previous volumetric mixing system. On the left, following modernization, the firm’s products are defect free. Beauty is more than skin deep in this case. The new ACT/Wiggert high shear counter-current mixer and automated controls have helped the precaster achieve or exceed design strength much faster, reduce cement usage by 200 lbs per yard, and cut labor and other materials significantly.

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