Mix DesignFrom required strength to proportions.Civil EngineeringDurability can override strength. Whichever demands more, wins.1Set the target mean strengthCharacteristic strength plus a margin for production variability.2Fix the water-cement ratioFrom strength and from durability class, taking the lower value.3Choose the water contentFrom the workability wanted and the aggregate size and shape.4Compute cement contentWater content divided by w/c ratio, then check against minima.5Proportion the aggregatesFine to coarse ratio for grading, cohesion and pumpability.6Trial, test, adjustTrial mix, cubes at 7 and 28 days, then correct the proportions.Educational reference. Mix design follows the governing concretestandard and the project specification, proven by trial.Mix Designlearnposters.com
Mix Design — printable engineering wall chart from LearnPosters. Free vector PDF, US Letter and A4.

Mix Design, step by step

Durability can override strength. Whichever demands more, wins.

  1. Set the target mean strengthCharacteristic strength plus a margin for production variability.
  2. Fix the water-cement ratioFrom strength and from durability class, taking the lower value.
  3. Choose the water contentFrom the workability wanted and the aggregate size and shape.
  4. Compute cement contentWater content divided by w/c ratio, then check against minima.
  5. Proportion the aggregatesFine to coarse ratio for grading, cohesion and pumpability.
  6. Trial, test, adjustTrial mix, cubes at 7 and 28 days, then correct the proportions.

Educational reference. Mix design follows the governing concrete standard and the project specification, proven by trial.

Questions about the Mix Design poster

What’s on the Mix Design poster?
6 numbered steps. Durability can override strength. Whichever demands more, wins. Set the target mean strength — Characteristic strength plus a margin for production v…; Fix the water-cement ratio — From strength and from durability class, taking the lowe…; Choose the water content — From the workability wanted and the aggregate size and shape.; Compute cement content — Water content divided by w/c ratio, then check against minima.; Proportion the aggregates — Fine to coarse ratio for grading, cohesion and pumpability.; Trial, test, adjust — Trial mix, cubes at 7 and 28 days, then correct the proportions.. Educational reference. Mix design follows the governing concrete standard and the project specification, proven by trial.
Who is the Mix Design poster for?
Mix Design belongs to the Civil Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning civil materials can pin it up — a beginner, a student mid-course, or someone revising years later.
When should you use the Mix Design poster?
Specifying or reviewing a concrete mix rather than taking one on trust. A wall chart earns its place by being glanceable from where the work is happening, so Mix Design belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
What other posters go with Mix Design?
Aggregates, Bituminous Materials and Cement Types sit alongside Mix Design in the Civil Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.AggregatesBituminous MaterialsCement Types
Is the Mix Design poster free to download and print?
Yes. Mix Design downloads as a free PDF with no account, no email and no watermark, like everything else in the Civil Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
What size does the Mix Design poster print at?
Mix Design is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Mix Design loses nothing.Printing guide

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