Dr. Fixit Pidigrout 10M
The non-shrink precision grout engineered for machine foundations, bearing plates and heavy-load anchoring — cures to 66 N/mm² without pulling away from the base plate.
What is it?
A ready-to-use, dual-shrinkage-compensated cementitious grout that flows freely into confined gaps and cures without the drying shrinkage that plagues ordinary sand-cement grout.
Where is it used?
Machine base plates, boiler and turbine-generator foundations, bridge bearing pads, pre-cast column bases, crane rail beds, and anchor-bolt pockets.
Why use it?
Delivers 66 N/mm² compressive strength at 28 days with a dual expansion system that keeps the grout in full, gap-free contact with the substrate under both static and dynamic loads.
How is it applied?
Mixed in a high-shear grout mixer with 7.0-7.5 litres of water per 50kg bag for flowable consistency, poured through a hopper from one side to avoid trapped air, and cured with Dr. Fixit Curing Membrane or wet sheeting for at least 7 days.
About Dr. Fixit Pidigrout 10M
Ask any site engineer who has grouted a compressor skid or a DG set base plate what keeps them up at night, and the answer is usually the same: shrinkage. Ordinary sand-cement grout pulls away from the underside of the plate as it dries, leaving hairline gaps that turn into rocking, cracking, and eventually a machine that’s no longer sitting true on its foundation. Dr. Fixit Pidigrout 10M is built specifically to close that gap — literally. It is a ready-mixed, free-flowing cementitious grout with a dual expansion system, so it pushes back against both plastic-stage settlement and the long-term drying shrinkage that ordinary grout suffers from.
In practice that means the grout stays in full bearing contact with the plate long after the pour, which matters enormously once a turbine, a crane rail, or a boiler starts vibrating. Pidilite backs this with real numbers rather than marketing language — 66 N/mm² compressive strength at 28 days, tested to IS 4031-6, with flexural and tensile figures (ASTM C580, ASTM C307) and pull-out bond strength (BS 1881-207) that a structural consultant can actually specify against. Space Arc stocks and applies it across Delhi NCR and pan-India for exactly this reason: it is one of the few grout products where the data sheet, not the sales pitch, does the convincing.
The technical insight
The number worth understanding on this data sheet isn’t the 66 N/mm² headline — it’s the water/powder ratio: 0.14-0.16. That’s an unusually tight band for a free-flow grout, and it’s the real engineering behind the “dual shrinkage” claim. Add water at the low end and you get a drier, trowelable mix with less bleed and higher early strength; push toward 0.16 and you get the 260mm-plus flow needed to self-level into a congested base plate. Cross the ratio even slightly and the expansion system that’s supposed to compensate for shrinkage instead works against you, because excess bleed water leaves capillary voids the grout can’t fill back in. That’s why the data sheet insists on never adding extra water — it isn’t boilerplate caution, it’s the one variable that decides whether a pour reaches 66 N/mm² or ends up disappointing and cracked.
Where it is used
- Base-plate grouting for heavy machinery and equipment foundations, including boiler bases and turbine-generator bedplates
- Bridge bearing pads and structural column bases in pre-cast, crane-rail construction
- Crane rail bed grouting for gantry and EOT cranes under constant dynamic load
- Anchor-bolt pockets and holding-down bolt grouting
- Filling cavities, gaps, recesses and voids around embedded steel or precast elements
- Column base plate and stanchion grouting in pre-engineered steel building (PEB) sheds
- General repair grouting of RCC structures where shrinkage-free fill is essential
Key advantages
- Ready to use — just add water in the specified 0.14-0.16 ratio, with no on-site batching of sand, cement and additives
- Free-flowing (minimum 260mm on flow table @30°C) — self-compacts around anchor bolts and congested rebar without vibration
- Fast strength gain: 25 N/mm² at 1 day climbing to 66 N/mm² at 28 days, so equipment can go back into service sooner
- Dual shrinkage compensation — 0.6-1% restrained expansion plus up to 2% plastic-state expansion keeps the grout in full contact with the base plate
- Can be poured up to 60mm thick in a single lift, reducing the number of pours needed for deep pockets
- Strong mechanical profile beyond compressive strength — 10 N/mm² flexural, 5 N/mm² tensile and >17 N/mm² pull-out bond strength, all relevant to vibrating machinery loads
- Tested to a spread of recognised standards (IS 4031-6, ASTM C580, ASTM C307, BS 1881-207), making it straightforward for a consultant to specify
- Available in 25kg and 50kg packs, scaling from a single machine repair to a large industrial pour
Limitations & considerations
- The water/powder window (0.14-0.16) is narrow and unforgiving — even a slightly wet mix drops strength and reintroduces the shrinkage the product is meant to prevent
- Needs a high-shear grout mixer for proper dispersion; hand or drum mixing traps air and under-delivers on flow and finish
- 60mm is the practical single-lift limit — deeper pockets need staged pours, which some crews aren’t set up to plan for in advance
- Being cementitious, it demands genuine curing discipline — 7 days minimum with membrane or wet cover — that’s easy to skip on a busy shutdown schedule
- In peak North Indian summer, mixing water has to be kept below 25°C, sometimes with ice, which adds a logistics step many teams don’t anticipate
- Not a chemical-resistant or ultra-high-strength grout — for oil-exposed bases or aggressive chemical zones, an epoxy grout is the more appropriate choice
Selection & best practice
Saturate the concrete substrate with clean water several hours before pouring and confirm there’s no ponding on the surface when you start; pour the mixed grout through a hopper from one side only, maintaining a 150-250mm head so it self-flows across the base plate without trapping air; and get the curing membrane (or wet sheeting) on within minutes of finishing, not at the end of the shift — Pidigrout’s strength numbers assume a proper 7-day cure, and Indian site heat will punish a grout left uncovered.
Specifications
| Chemistry / type | Dual-shrinkage-compensated, free-flowing cementitious grout |
| Colour | Cementitious grey |
| Water/Powder ratio | 0.14 – 0.16 |
| Flow on table @30°C | Min. 260mm |
| Compressive strength (IS 4031-6, @30°C) | 25 N/mm² (1 day) / 55 N/mm² (7 days) / 66 N/mm² (28 days) |
| Flexural strength (ASTM C580, 28 days) | 10 N/mm² |
| Pull-out bond strength (BS 1881-207, 7 days) | > 17 N/mm² |
| Theoretical coverage / yield | 25.75 litres per 50kg bag |
| Pack sizes & shelf life | 25kg and 50kg bags; 6 months from manufacture, unopened, cool dry storage |
Industry use cases
Heavy industry & power
Grouting boiler base frames, turbine-generator bedplates and DG set foundations where constant vibration demands zero-gap bearing contact.
Infrastructure & bridges
Bearing pad grouting under bridge girders and precast bearing plinths on flyover and highway projects.
Pre-engineered buildings
Column base plate and stanchion grouting in PEB factory sheds and warehouses.
Ports & material handling
Crane rail bed grouting for gantry and EOT cranes carrying constant dynamic loading.
Plant maintenance & shutdowns
Re-grouting during machine relocation, foundation repair, or replacement of a cracked or rocking base plate within a shutdown window.
Frequently asked questions
How much water do I actually add per 50 kg bag?
Can I hand-mix it on a small site, or do I need a mixer?
What’s the maximum thickness I can pour in one go?
Is it suitable for oil-exposed machine bases or chemical spill areas?
How soon can the machine be loaded after grouting?
Does Space Arc supply and apply this, or only supply the bags?
How we position Dr. Fixit Pidigrout 10M
Within the Dr. Fixit Grouts & Anchors range, Pidigrout 10M is the general-purpose precision grout — pair it with Dr. Fixit Zinc-Rich Primer for corroded rebar preparation and Dr. Fixit Curing Membrane for the mandatory 7-day cure, and for the surrounding RCC repair itself, Dr. Fixit Pidicrete URP or Crack X Shrinkfree handle the concrete restoration work that often accompanies a machine-foundation job. Where a specification calls for a non-Pidilite alternative, or a consultant has already standardised on a different vendor, Fosroc Conbextra GP2 is the closest genuine equivalent — a free-flow, non-shrink cementitious grout used across Indian industry for the same base-plate and stanchion grouting scope.
Fosroc Conbextra GP2 — A specifier already standardised on Fosroc, or working to a project spec that names Conbextra GP2, might choose it over Pidigrout 10M purely to match an existing approved-vendor list, since both are free-flow, non-shrink cementitious grouts aimed at the same base-plate and stanchion grouting scope.
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Authorised distribution, technical advice & professional application across Delhi NCR and Pan-India.