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04Quality

Quality you can read off the docket

ISO 9001:2015 certified quality management, mixes designed and tested to IS codes, and an in-house laboratory that checks raw materials and every delivery.

A

Press a cube

Every delivery is sampled. Cubes are cured and crushed at 7 and 28 days and the result is read against the specified grade.

Cube press

30fck specified (MPa)
0Cube result (MPa)
-Margin (MPa)
PASS

A demonstration of how a 28-day cube result is read against the specified strength under IS 456. Results shown are illustrative; project records are issued per pour.

Controls

Automated batching, manual vigilance

  • Computerised batchingEvery ingredient weighed on load cells against the approved mix design, with batch records kept.
  • Raw material testingAggregate grading and moisture, cement and water checked in-house before use.
  • Fresh concrete testsSlump and temperature at the plant and at site, before the pour starts.
  • Cube testingCubes cast per sampling plan, cured and crushed at 7 and 28 days; results reported to the client.
  • Delivery documentationEach load leaves with a docket: grade, quantity, batch time and the truck.
Cement silos, the mixer tower and the covered conveyor from the aggregate batcher: every ingredient is weighed here before mixingWeigh batching · Gaulane
B

Slump classes we batch to

Slump is measured with the standard cone at the plant and again at site. Bands follow IS 456.

ClassSlumpTypical use
Low25-75 mmMass concrete, lightly reinforced sections, pavements
Medium50-100 mmNormally reinforced slabs, beams, walls, columns
High100-150 mmPumped concrete, congested reinforcement
Flowingflow testSelf-compacting concrete, placed without vibration
C

Indian Standards for ready-mixed concrete

The reference codes for producing, testing and accepting ready mix concrete in India.

StandardTitleWhat it governs
IS 456:2000Plain and reinforced concrete: code of practiceGrades, durability, cover, acceptance criteria
IS 4926:2003Ready-mixed concrete: code of practiceProduction, delivery and documentation of RMC
IS 10262:2019Concrete mix proportioningHow each mix design is proportioned
IS 383:2016Coarse and fine aggregatesGrading and quality of sand and aggregate
IS 269:2015 / IS 1489 / IS 455Cements: OPC, PPC, PSCCement types and their properties
IS 9103:1999Concrete admixturesPlasticisers, retarders and accelerators
IS 1199Fresh concrete: sampling and testingSlump and workability at the plant and on site
IS 516Hardened concrete: strength testsCube compressive strength at 7 and 28 days