M30 ready-mix
concrete
M30 is the IS 456 minimum for severe exposure and the default grade for high-rise structural elements, bridge decks, industrial floors, and any water-retaining RCC.
M30 mix design parameters
IS 456:2000 durability minimums for the severe exposure class. Project-specific mix designs are signed off by our QC team.
Where M30 fits — and where it doesn't
Specifying the right grade saves money and avoids rework. Below is a quick guide based on IS 456 norms and our delivery experience in Prakasam district.
Use M30 for
- High-rise residential structural columns and beams (G+5 and above)
- Bridge decks and overpass slabs
- Water-retaining tanks, reservoirs, treatment plants
- Industrial flooring under heavy fork-lift or machinery load
- Pre-stressed concrete beams and slabs
- Deep foundations in coastal areas
- Sewerage and drainage structures
Don't use M30 for
- Marine immersion / chloride-rich environments (use M40+)
- Where M25 meets spec (uneconomical step-up)
How we batch M30
IS 456 Table 5 sets M30 as the durability minimum for severe exposure: 320 kg/m³ cement, 0.45 max w/c. Mixes typically incorporate fly-ash (15 – 25% replacement) or GGBS for long-term durability and reduced heat of hydration. Pumpable to ~30 m height with standard equipment; higher with boom pumps.
Every dispatch from our Mallavarappadu and Gundlapalli plants includes a batch slip with mix proportions and a 28-day cube test report — generated from the same load you receive. M30 is delivered in transit mixers and placed either by direct chute discharge or by line pump for upper-floor slabs, columns, and pours the truck can't reach. For projects above 50,000 m³, we can set up a dedicated batching plant on your site with a project-specific mix design and on-site QC lab.
Common questions about M30
Do I need M30 for my G+5 apartment building?
Why is fly-ash used in M30 mixes?
M30 delivery across Ongole and Prakasam district
We dispatch M30 ready-mix concrete to construction sites in Ongole and the wider Prakasam district from our Mallavarappadu and Gundlapalli plants. Tap any town for plant distance, transit time, and project-specific notes.