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Alphatec Engineering

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Since 1977 we have been repairing foundations, installing new machinery, aligning, and regrouting all kinds of Reciprocating and Rotating Machinery.

15/10/2026

The company that sells you the grout and the company that pours it are usually not the same company.

That is how a correctly specified product ends up badly installed. Surface preparation, formwork, pour temperature and cure conditions all sit with whoever is on site that week. When it fails, the supplier points at the application and the applicator points at the product.

We manufacture our own grout and resin systems, and our own crews apply them. One company answerable for the specification and for the result on the foundation.

A paper fiberizer lost roughly 50mm of cement grout because it had been badly installed and the surface was never properly prepared. We were on site within two weeks, scabbled it back, and regrouted with AT800.

https://alphatec-engineering.com/success-cases/fiberizer-foundation-regrout-and-repair/

Does the company that specified your grout ever come to site?

13/10/2026

The first stage of a foundation assessment happens with the machine running.

Only the deeper work needs the unit down. The walk-down does not.

What our engineers look at, in order:

General appearance. Does the concrete look professionally done. Not conclusive on its own, but it tells you something.

Oil. Almost all machinery is lubricated, and oil is very good at getting into small spaces. That is what it is for. It gets into concrete just as well. Oil running down a foundation from above is on every plant and means nothing. Oil coming out of the foundation means there is already a separation for it to come out of.

The line at anchor bolt depth. On a two metre foundation with metre-long bolts, look for a horizontal line about a metre up from floor level. Hairline cracking along it, sometimes weeping oil. That is the top half of the foundation working loose from the bottom half.

The nameplate. What the machine is, who made it, its rating, when it was installed. Read it and write it down. It determines what repair is even appropriate.

A foundation that failed years ago is unmistakable. One that is about to fail looks fine to most people.

Have you looked at yours?

https://alphatec-engineering.com/services/foundation-repair/

08/10/2026

Alignment measures the machine against the machine. Soft foot is the machine against the concrete.

You can pass one and fail the other.

Giles Goldsbro on why standard alignment procedures miss it.

Does yours include a soft foot check?

06/10/2026

Grout gets argued about on compressive strength. On a shutdown, the only figure that matters is when you can start the machine.

AT110 is built for that window. Three-part epoxy grout, 95 MPa compressive strength, reaching high strength within hours rather than over a full day, and it holds that speed at low ambient temperatures where most fast-set products slow down.

The trade-off is real. Pot life is around 15 minutes at 25°C, so formwork and crew need to be ready before mixing starts.

If the outage has room in it, AT800 is still the right choice.

Full specifications:
https://alphatec-engineering.com/products/high-performance-epoxy-grouts-for-heavy-machinery/at110-alphatec-110-fast-curing-epoxy-grout/

01/10/2026

No one at your plant owns the foundation.

Civils designed it, to a load case that may no longer apply.
Mechanical inherited it, along with the machine sitting on it.
Reliability get the call when it starts to move.

Three teams, three sets of records, no single owner. So a grout line under a baseplate goes twenty years without anyone inspecting it, while the machine above it gets an oil sample every month.

Foundations need their own condition record, held by someone whose name is on it. A survey takes a day.

Who owns the foundations at your plant?

https://alphatec-engineering.com/services/foundation-repair/

29/09/2026

Watch the baseplate. Then watch the concrete under it. They are not moving together.

Vibration monitoring is tuned to catch faults in the equipment: imbalance, misalignment, bearing frequencies. A foundation losing its bond produces none of those. It tends to read as misalignment.

So the machine gets realigned. The numbers improve for a few weeks. The joint under the plate carries on working loose.

If a machine keeps coming back to the alignment crew, stop realigning it and look underneath.

Foundation condition needs its own inspection cycle. A survey is a day. A failed foundation is a shutdown.

Got a machine with a repeat alignment history?

24/09/2026

We predicted the peak temperature inside a 700 kg epoxy grout pour to within 0.1 °C.

Here is why that matters.

In a large pour, the grout generates its own heat. Add a summer ambient temperature and the exotherm stops being a footnote in the method statement. It becomes the variable that decides whether you get a sound block or a cracked one. Most teams find out which after demoulding.

So we stopped estimating and measured it. We reproduced a real industrial installation using our AT800 Epoxy Grouting System:

1,830 x 430 x 440 mm, approximately 700 kg, placed in a single continuous pour. Five embedded thermocouples logging the full thermal history, from gelation through the exothermic peak and back to ambient.

Results: Peak core temperature 71.8 °C Controlled thermal gradient across the section No cracking and no visible defects after demoulding

The number that matters most is the comparison. Our thermal model, calibrated over years of validation pours across different geometries, volumes, and pouring configurations, predicted 71.7 °C. Measured: 71.8 °C.

That means we can tell a client what the inside of their block will do before anyone opens a unit. Pour windows, shift planning, and hot weather precautions become decisions based on data rather than on how the last job went.

Anticipating a problem is worth more than solving it.

If you have a large pour scheduled in high ambient temperatures, we can model it first. Send us the geometry and the site conditions

17/09/2026

Diamond wire cutting is not new for us. We have been cutting out failed foundations, concrete, and old anchor bolts this way for years, on jobs where the damage was too far gone to repair in place.

It now has its own page.

Vibration-free, precise cuts through heavily reinforced concrete, no jackhammering next to a live machine. The same crew then rebuilds it: new anchor bolts, concrete, epoxy grout, realignment.

At a power plant in Saipan, that meant cutting twelve concrete blocks (32 m³) and replacing 42 anchor bolts on a diesel engine foundation, with a return campaign in 2024.

Full details on the service page: https://alphatec-engineering.com/services/foundation-repair/diamond-wire-cutting-foundation-removal/

15/09/2026

Most foundation failures get blamed on the equipment. The grout underneath is usually the real problem.

Vibration and temperature swings crack ordinary grout. Voids open up, bolts loosen, and bearings fail long before the machine should have worn out.

AT800 is built for exactly that: a proprietary epoxy grout rated from -40°C to +80°C, in service across 50 or more countries, from Arctic LNG plants to Middle Eastern refineries. Get more details here: https://alphatec-engineering.com/products/high-performance-epoxy-grouts-for-heavy-machinery/at800-alphatec-800-high-performance-epoxy-grout/

10/09/2026

Cement grout reaches roughly 24 to 27 MPa compressive strength after 24 hours. Epoxy grout reaches roughly 55 to 70 MPa in the same 24 hours, and moves on to 85 to 100 MPa within 7 days.

That gap is why the European Forum for Reciprocating Compressors (EFRC) treats cement grout as a filler material for static equipment in its foundation design guidance, not a solution for anything carrying vibration or dynamic load.

Cement is cheaper, and it creeps less than epoxy under sustained load. It also bonds poorly to steel, has close to no chemical or oil resistance, and takes weeks rather than days to reach a strength that will actually support the machine.

For rotating equipment, that trade-off rarely goes cement's way.

Full EFRC report here:https://www.recip.org/wp-content/uploads/2020/04/EFRC-RD-Report-Foundation-Anchor-Bolts-Grouting-October-19th-2017.pdf

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Avda 9 De Octubre 1
Valencia
46136

Horario de apertura

Lunes	09:00 - 17:00
Martes	09:00 - 17:00
Miércoles	09:00 - 17:00
Jueves	09:00 - 17:00
Viernes	09:00 - 17:00

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http://alphatec-engineering.com/

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