14 Accredited Test Methods
ASTM · BS 1881 · ISO/IEC 17025
ARAMCO Vendor #10043591
EP Municipality EP-M6124
Concrete Testing
WHY CONCERETE TESTING MATTERS
Structural Integrity Begins With Verified Concrete.
Concrete is the single most widely used construction material in Saudi Arabia - and also the most frequently non-compliant. Incorrect water-cement ratios, contaminated aggregates, early form stripping, and inadequate curing all produce concrete that fails to reach its design strength. The consequences range from costly rework to structural collapse.
HGL's concrete testing team operates both in-field - at the point of concrete placement - and in our ISO/IEC 17025-accredited laboratory on cured specimens. We cover 14 standard test methods from slump and workability through compressive strength at 7 and 28 days, core drilling from hardened structures, rebound hammer assessment, and chemical analysis for chloride and sulfate contamination.
Every concrete test report issued by HGL is signed by a certified engineer and carries our SAAC accreditation reference - making it directly acceptable to ARAMCO QA/QC engineers, municipality inspection teams, and third-party project auditors.
Field Testing
At point of pour - slump, temp, air content, sampling
Lab Testing
7-day & 28-day compressive strength, chemical analysis
In-Situ Testing
Rebound hammer, core drilling from structures
Chemical Analysis
Chloride, sulfate, water absorption - BS 1881
TWO-PHASE TESTING PROGRAM
Field Phase + Laboratory Phase
HGL conducts concrete testing in two coordinated phases - immediate field testing at the pour location, and controlled laboratory analysis of cured specimens.
PHASE ONE
Field Testing - At Point of Pour
Our field technicians arrive at your project site during the concrete pour and conduct all required fresh-concrete tests immediately - before the mix is placed in formwork. This catches workability, air content, and temperature non-conformances in real time, before they become structural problems.
Slump Test
ASTM C143 - workability and water-cement ratio verification
Fresh Concrete Temperature
ASTM C1064 - critical in Saudi Arabia's extreme summer conditions
Air Content
ASTM C231 - voids verification for durability specification compliance
Unit Weight
ASTM C138 - fresh mix density verification
Specimen Making & Curing
ASTM C31 - cube and cylinder sampling for lab strength testing
PHASE TWO
Laboratory Testing - Cured Specimens
Field-sampled specimens are transported to our ISO/IEC 17025-accredited laboratory for controlled curing and compressive strength testing at 7, 14, and 28-day intervals - delivering the compliance evidence required by ARAMCO, municipalities, and structural engineers.
Compressive Strength - Cylinders
ASTM C39 - 7-day and 28-day characteristic strength
Compressive Strength - Cubes
BS 1881: Part 116 - British Standard cube testing
Flexural Strength (Modulus of Rupture)
ASTM C78 - pavement and structural beam testing
Splitting Tensile Strength
ASTM C496 / BS 1881:117 - indirect tensile capacity
Water Absorption
BS 1881: Part 122 - durability and permeability index
IN-SITE STRUCTURAL TESTING
Testing Existing Concrete Structures
Rebound Hammer (Schmidt Hammer)
Non-destructive hardness test applied to the surface of hardened concrete. Measures rebound number and correlates to indicative compressive strength. Rapid screening of large areas - ideal for existing structures, slabs, columns, and walls.
STANDARD
ASTM C805 / BS 1881-202
Core Drilling & Compressive Testing
Diamond-core drill extracts cylindrical specimens from hardened concrete elements - slabs, beams, columns, and pavements. Cores are trimmed, capped, and tested under compression to determine actual in-place strength with high confidence. Definitive compliance evidence for dispute resolution and structural assessment.
STANDARD
ASTM C42 (Coring) + ASTM C39 (Compression)
Chemical Analysis of Hardened Concrete
Laboratory chemical testing of hardened concrete specimens to quantify chloride ion content (corrosion risk to embedded reinforcement), sulfate content (risk of sulfate attack on cementite matrix), and water absorption (durability and porosity index). Essential for aggressive-environment structures in the Eastern Province.
STANDARDS
BS 1881: Part 122 (Absorption) · Part 124 (Chloride & Sulfate)
COMPLETE TEST SCOPE
All Concrete Tests We Perform
FIELD TESTS (5)
| Test Name | Standard | Phase |
|---|---|---|
| Slump of Hydraulic-Cement Concrete | ASTM C143 | Field |
| Temperature of Freshly Mixed Hydraulic-Cement Concrete | ASTM C1064/C1064M | Field |
| Making and Curing Concrete Test Specimen in the Field | ASTM C31/C31M | Field |
| Air Content of Freshly Mixed Concrete by the Pressure Method | ASTM C231/C231M | Field |
| Obtaining and Testing Concrete Drilled Cores | ASTM C42/C42M | Field |
| Rebound Number of Hardened Concrete | ASTM C805/C805M | Field |
Non-Destructive Test
| Test Name | Standard | Phase |
|---|---|---|
| Dry Film Thickness (DFT) | ASTM D6132 | Non-Destructive |
| Wall Scanner (Steel Rebar detector) | Non-Destructive | |
| GBR | Non-Destructive |
LABORATORY TESTS (7)
| Test Name | Standard | Phase |
|---|---|---|
| Compressive Strength of Hydraulic Cement Mortars | ASTM C109/C109M | Lab |
| Compressive Strength of Cylindrical Concrete Specimens | ASTM C39/C39M | Lab |
| Compressive Strength of Concrete Drilled Cores | ASTM C42/C42M | Lab |
| Compressive Strength of Hollow Block | ASTM C140 | Lab |
| Density, Absorption of Hollow Block | ASTM C140 | Lab |
Report Contents & Turnaround
Field test results: Same-day verbal notification + report within 24 hours
7-day compressive strength: Reported on Day 7 immediately after testing
28-day compressive strength: Reported on Day 28 immediately after testing
Each report includes: Standard reference, equipment calibration ID, technician signature, engineer certification, SAAC accreditation stamp
Concrete Tested on HGL's Major Projects
HGL has delivered concrete testing on some of the Eastern Province's most demanding civil, energy, and institutional projects.
ARAMCO
JAFURAH Gas Compression Phase II
L&T · AURCO · ALOMAIER OTC
ARAMCO
WASIT PF2 Expansion & Site Prep
Abdul Ali Al-Ajmi Company
EDUCATION
King Faisal University Staff Housing
Al-Fouzan Trading & Gen. Construction
CIVIC
King Abdullah Cultural Center
Al-Andalus Company
NATIONAL GUARD
Dependent School Project
FIAFIR Trading & Construction Co.
AVIATION
Al-Ahsa International Airport Rehab
ICAD · Hofuf City
RESIDENTIAL
H.O. Lots Al-Ahsa - ARAMCO
Mastoura Trading & Contracting
INFRASTRUCTURE
Main Potable Water Transmission
Aqwa Al-Arabia · Al-Bathaa
Need a Concerete Test?
Accredited test methods covering fresh concrete workability, in-place structural verification, and hardened specimen analysis. Field and laboratory testing under ISO/IEC 17025:2017 - accepted by ARAMCO, municipalities, and international consultants.