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Concrete technology · Technical consulting · Applied knowledge
Concrete decisions, grounded in evidence.
Hossein Barzegar is a concrete technology specialist, industry practitioner, technical educator, author, and consultant focused on mixture proportioning, admixtures, quality control, durability, and troubleshooting.
Aggregate embedded in the cementitious matrix
Areas of focus
Concrete performance is shaped at every stage.
Technical content and consulting are organised around the connected decisions that influence fresh-concrete behaviour, hardened-concrete performance, repeatability, and service life.
View all areas of expertise- 01
Mixture proportioning
Balancing constituent materials, performance requirements, practical constraints, and verification data.
- 02
Concrete admixtures
Examining compatibility, dosage response, workability retention, and interactions with cementitious systems.
- 03
Quality control in concrete production
Connecting batching, sampling, testing, variability, and corrective action to reliable concrete production.
- 04
Durability and troubleshooting
Framing performance problems, testing plausible causes, and defining proportionate technical responses.
Consulting services
A defined scope for a defined technical question.
Each engagement should be matched to the available evidence, decision timeline, and level of verification the project requires.
Review consulting servicesMixture review and proportioning
Review of project requirements, constituent data, trial results, and production constraints to identify practical next steps.
Admixture performance assessment
Structured evaluation of compatibility, dosage response, workability retention, and observed production behaviour.
Quality control and troubleshooting
Evidence-led investigation of variability, fresh-concrete behaviour, strength development, and production control.
Technical training
Focused learning for production, laboratory, technical, and project teams, scoped to the audience and operating context.
Working process
From a broad concern to an actionable technical brief.
The process separates observations from assumptions, makes data gaps visible, and records limitations before recommendations are made.
Define the decision
Clarify the performance question, project constraints, applicable requirements, and the decision that the review must support.
Review the evidence
Examine mixture data, material information, test methods, production records, site observations, and known changes.
Assess plausible causes and options
Test competing explanations against the available evidence and distinguish immediate controls from changes that require trials.
Document the next steps
Provide a clear record of findings, limitations, priority actions, and the verification needed before implementation.
Recommendations depend on the quality and completeness of project information. Changes to materials or proportions should be verified through appropriate trials, testing, and project controls.
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About the author
Hossein Barzegar
A concrete technology specialist, industry practitioner, technical educator, author, and consultant with a focus on concrete admixtures, mixture proportioning, quality control, durability, and troubleshooting.
Evidence first
Recommendations should be tied to observed data and defined assumptions.
Limits stated
Uncertainty, data gaps, and required verification remain visible.
Practice connected
Technical reasoning is related to production and project decisions.
Technical consultation
Bring the concrete performance question into focus.
Share the decision you need to make, the evidence currently available, and the project timeline. The appropriate review scope can then be defined.