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Alphatec Engineering - Industrial Machinery Regrouting Services Products

Alphatec Engineering - Industrial Machinery Regrouting Services

Resin Injections Newly installed equipment that has lost adhesion between its metal parts and the concrete foundation; skid-mounted machines required to be filled with mortar or concrete, creating many voids and gaps and faulty adhesion between the skid and the foundation; adjacent concrete slabs with undesired relative movement; stress related cracks, cold joints… Alphatec developed the AT300 Epoxy resins family and the injection procedure up to 350 bars, to directly address all this scenarios achieving best results, assuring steel-concrete adhesion and the monolithic behaviour for the system.
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New Installations The Alphatec teams are highly specialised in installing and grout all kinds of machinery: Compressors, Hyper - compressors, Pumps, Diesel Engines, Gas Turbines, all kind of skids… providing high quality materials and the best solutions following the API RP686, ACI and GMRC norms.
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Product Sales The benefits of using epoxy grouts are most easily seen in a repair or rehabilitation project, but they will perform very well in new installations of all types of rotating machinery, with the following provisos:
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Regrouting In case of existing machinery showing instability and vibration problems because of oil-degraded grout, anchor bolt failure or grout separation, the best procedure is to substitute the existing grout without removing the equipment, reducing down time and expenses. The specially designed hydraulic jack system marketed under the ALPHAPAD® trademark, enables us to work with the equipment in situ, and align it with utmost precision. The importance Of A Sound Foundation. AT800 is the best non-shrinking, thermal and shock resistant grout material to transfer all vibrations generated within the machine to the foundation where it will be properly damped
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Alignment We all agree that machinery will perform better when it is properly aligned. The snag is that word "properly". We believe that all machines have an optimum alignment profile, which takes into account the changes in the shaft train when the unit is operating. Differential thermal growth, rotational displacement, and foundation fastening restraints all affect the final position of the shaft/shafts, and need to be considered.
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Foundation Repairs The development of vibration problems in the machinery is greatly enhanced by unbound construction joints in the foundation, grout failure and bad anchor installation. Alphatec provides the best engineered solution, where epoxy resins are injected after inserting high tensile strength Dywidag bars, to ensure a monolithic behaviour in the foundations.
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Condition Surveys of Grout and Foundation Status Review of history of installation, outages and vibration levels. Analysis of foundation design and construction, with calculations of mass and evaluation of form. Identification of actual and potential cold joints, stress risers, and stress-induced cracking. Analysis of support system, including the original grout and anchor bolts. Analysis of grout disbonding, corrosion, oil degradation and other anomalies. Verification of levels and deflection readings. In addition, at the clients request, we can take core samples to check various parameters, such as carbonation testing (phenolphthalein test), chloride testing and directly measured compressive strength. Other possible tests include Schmidt hammer testing, ultrasonic p-wave and s-wave testing, impact-echo testing, eddy current rebar location, etc. Preparation of report indicating recommended actions
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