Concrete field technician documenting fresh-concrete testing during a Puerto Rico slab placement

Independent concrete quality assurance · Puerto Rico

Test with precision.
Build with confidence.

Concrete
confidence.

PE-led field testing, laboratory verification, and traceable digital reporting for concrete projects across Puerto Rico.PE-led concrete testing across Puerto Rico.

PE ledACIASTMDBE certified
Field to reportFresh concrete testingSampling · Slump · Temperature · Air · Cylinders

01IndependentObjective testing and observation

02TraceableDocumented chain of custody

03ResponsiveClear coordination and reporting

04LocalServing projects across Puerto Rico

What we do

Concrete evidence.
Engineering clarity.

Testing is more than a number. It is a disciplined record of the material, conditions, methods, and decisions behind every result.

01

Fresh Concrete Testing

Field sampling and testing that documents every placement with clarity—from temperature and slump to air content and specimen preparation.

ASTM C31 · C1064 · C143 · C231
02

Strength & Performance

Controlled laboratory testing for compressive strength, concrete maturity, permeability, and project-specific performance requirements.

ASTM C39 · C1074 · Project protocols
03

Quality Assurance

Independent observation, traceable test records, and practical engineering guidance for owners, designers, contractors, and producers.

ACI · ASTM · Contract specifications
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Rubén Segarra Montelara, PE

Engineering-led oversight

Concrete quality assurance shaped by field experience, technical rigor, and a practical understanding of construction in Puerto Rico.

Principal engineer

Rubén Segarra
Montelara, PE

Segarra Engineering & Consulting Group, PSC is a Puerto Rico–based, DBE-certified engineering practice focused on concrete quality, testing, and acceptance.

Rubén brings experience across concrete production, field evaluation, laboratory testing, technical education, and the coordination required to move projects from specification to documented acceptance.

Professional EngineerACI contributorPuerto Rico concrete industry
Meet Rubén and view credentials

Plan your next placement

Need concrete testing?

Share the project, location, placement date, and testing requirements. We’ll help coordinate the next step.