Straight answers from people who move cement every day. No jargon, no sales talk.
PPC vs OPC 53 — the two-minute version
PPC (Portland Pozzolana Cement) is the everyday bag: plastering, brickwork, compound walls, non-structural work. It cures slower but keeps gaining strength for years and gives a smoother finish with fewer cracks.
OPC 53 is the structural bag: slabs, columns, beams, footings. High early strength — your centering comes off sooner. Costs a bit more; worth it where the drawing demands it.
How many bags do I need?
- Plastering: roughly 1 bag per 100–120 sq ft at 12mm thickness (1:4 mix)
- Brickwork: about 1 bag per 350–400 bricks (1:6 mix)
- Slab (dhalai): around 4–4.5 bags per 100 sq ft at 5" thickness (M20)
These are field estimates — your engineer's bar bending schedule wins. Unsure? WhatsApp us the area and we'll help you count.
Storing cement at site (this is where money is lost)
- Keep bags off the floor — on a wooden pallet or plastic sheet, never bare ground
- Cover with tarpaulin even indoors; Bengaluru humidity sets bags in weeks
- Use FIFO: oldest bags first — check packing dates
- Buy for 2–3 weeks of work, not 3 months. With same-day delivery, hoarding is a habit, not a need.
Monsoon concreting
Rain during a pour weakens the mix. Watch the forecast, keep tarpaulin ready, and never add extra water to “fix” a stiff mix — workability comes from proper mixing, not a hosepipe. If heavy rain is certain, reschedule; a one-day delay is cheaper than a weak slab.
Tile adhesive vs sand-cement for tiles
Adhesive wins for vitrified and large tiles: no soaking, no curing water, thinner bed, and far fewer hollow-sounding tiles a year later. Sand-cement still works for small ceramic tiles on rough floors if your mason insists — but the callback risk is yours.
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