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← Services Index SHEET 02 / 02 · REV 2024
§ 02 / Services Catalog

Concrete
Consultancy.
Mix · Plant · Audit.

IS 10262 mix designs, RMC plant process audits, mix cost optimization and field troubleshooting — written by an engineer who has actually run the batch panel, not just modelled it.

SCOPE

Mix · Plant · Audit

Design · Optimize · Troubleshoot

DURATION

1–6 weeks

Per deliverable or full program

DELIVERABLES

12+ docs

Mix Sheets · Plant Reports · Trial Cards

Discuss Your Mix Challenge Read the Methodology
OPC 53 GRADE FA CLASS · F AGG 20MM · 10MM PAN MIXER CEMENT FEED H · 25 M RMC · BATCHING SPEC.002 · REV.A

FIG. 02 — RMC Plant · 3-Silo · Pan Mixer Layout

150
Mix Designs Authored · IS 10262
12+
RMC Plants Audited (live)
30–50%
SCM (Fly-Ash / GGBS) Replacement · IS 456 RCC limit
M10 → M80
Full IS-grade design range
§ 01 / Scope of Work

What this engagement covers.

The Concrete Consultancy engagement is a closed-loop mix-to-pour programme. We design the mix, prove it on the plant, audit the process that produces it, and stay until field results match design intent — not lab numbers.

CLIENT
RMC Operator · Contractor · Project Owner
GRADES
M10 to M80 (incl. SCC, HPC, UHPC)
CODES
IS 10262 · IS 456 · IS 383 · IS 9103 · ACI 211.1
OUTPUT
Mix Design Dossier + Plant Trial Card + Field Trending
REPORTING
Per-trial · Per-batch · Monthly trend

Six Mix Disciplines

Each discipline produces an artefact the lab and plant can actually use — not a theoretical paper.

  • 01 Mix Proportioning — IS 10262 / ACI 211, with admixture economics
  • 02 Plant Trial Mixes — full sieve / slump / strength validation
  • 03 Process Audits — batching, weighing, mixing cycles
  • 04 Cost Optimisation — PFA / GGBS / aggregate substitution
  • 05 Failure Investigation — low strength, bleeding, segregation
  • 06 Special Mixes — SCC, HPC, UHPC, lightweight, fibre-reinforced
§ 02 / Methodology

A three-pass design-to-plant cycle.

A mix that works on paper but fails on the pan mixer is a failure. We design, prove on the plant, then trend field cubes — closing the loop that most mix designers leave open.

Six-stage flow from material characterisation through plant trials to field strength trending. IS 10262 (Indian) and ACI 211 (American) paths converge into the production mix card — never released until field cubes confirm it.
01
PHASE · DESIGN

Mix Proportioning

Material characterisation (sieve analysis, moisture, specific gravity, admixture compatibility) followed by IS 10262 design with 2–3 alternatives bracketing cost and workability.

DURATION · 1–2 WEEKS
02
PHASE · PROVE

Plant Trial Mixes

On-plant trial batches with calibrated admixture dosing, verified slump, air content, density and 7/28-day strength. Designs are signed off only after trial card is closed.

DURATION · 1–2 WEEKS
03
PHASE · DEPLOY

Process Audit & Roll-out

Process audit of batching sequence, weighing tolerance, mixing time and discharge protocol. Operator briefings for plant staff; documented mix card for QC reference.

DURATION · 2–3 WEEKS
04
PHASE · TREND

Field Strength Trending

Monthly cube-strength trend with statistical control limits (X̄–R, CUSUM). NCR issued automatically when target deviations exceed IS 456 tolerance — decisions backed by data, not opinion.

CADENCE · MONTHLY
§ 03 / Deliverables

What you receive on day one.

Every artefact below is produced during the engagement and handed off in editable source format. Mix design sheets use your internal document control format, not a generic template.

DOC · MIX · 001

Mix Design Dossier

IS 10262 mix sheets with material properties, blend alternatives and target workability.

DOC · TRI · 002

Plant Trial Card

Verified slump, density, air content and 7 / 28-day compressive strength for each design.

DOC · AUD · 003

Plant Process Audit

Batching sequence, weighing tolerance, mixing time and discharge protocol review.

DOC · MAT · 004

Material Characterisation

Sieve analysis, moisture, specific gravity, soundness and admixture compatibility data.

DOC · OPT · 005

Cost Optimisation Sheet

PFA / GGBS / aggregate substitution models with cost-per-m³ and strength impact.

DOC · SP-C · 006

Special Mix Specification

SCC, HPC, UHPC, lightweight or fibre-reinforced — formulated to specified performance.

DOC · TRD · 007

Strength Trend Report

Monthly X̄–R / CUSUM trend with statistical control limits and NCR triggers.

DOC · INC · 008

Failure Investigation Note

Root-cause analysis for low strength / bleeding / segregation / cold-joint cases.

DOC · OPS · 009

Plant Operating Card

Operator-friendly batching card with admixture dose windows and tolerance limits.

§ 04 / Why ConcreteInfo

Designed mixes that survive the plant, not just the lab.

The hardest part of concrete consultancy is not the proportioning — it is closing the gap between a 28-day cube in the lab and a truck load on the road. That is where our founder-led audits pay.

01

Plant-floor experience

Mix proportions are designed by an engineer who has actually run the batch panel, not by a graduate modelling SCMs in a spreadsheet. We know what admixtures do at 38 °C and what fines content does at 7-day strength.

02

Defensible recommendations

Every mix decision is traceable back to material properties, trial data and IS 10262 assumptions. If a strength fail happens, the design logic is on file — not buried in emails.

03

Field-verified economics

Optimization is not just cheaper cement — it is what survives a 90-minute haul, a hot pour, and a vibrating poker. Our mix cost savings are real, not theoretical.

§ 05 / Frequently Asked

Pre-engagement questions, answered.

Q.01

Do you design mixes against IS 10262 only, or also ACI / Eurocode?
IS 10262 is the default for Indian projects and what we recommend first. Where the client specifies ACI 211.1, Eurocode 2 or a project-specific performance spec, we design against that and keep IS 10262 as the second reference for cross-check. The deliverables carry whichever code the project mandates.
Q.02

Can you bring a trial mix to our plant, or do we need to send samples?
Typically we run the trial at your plant with your materials — this is the only way the mix reflects reality. Where transport of small quantities is required (e.g. special admixtures, UHPC powders), we arrange that with the plant in advance and bring what we need to site.
Q.03

How do you handle SCM substitutions when source quality varies?
Every PFA / GGBS / silica fume batch is characterised on receipt — LOI, fineness, activity index — before it enters a mix design. We qualify each source quarterly and reject batches outside spec rather than absorb them into a design assumption.
Q.04

Can you troubleshoot a low-strength failure on an existing mix?
Yes. Send us the failing cube report and your current mix card; we run a root-cause review (materials, batching, sampling, curing). Most low-strength failures are batching / sampling issues, not mix-design — but we do not assume that; we verify.
§ END OF DOCUMENT · SVC / 02

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Phone: +91-9930954848 · Email: services@concreteinfo.in