Concrete Cube Test in Sarawak
Compressive strength testing of concrete cubes for contractors and site engineers across Sarawak who must prove concrete strength at 7 and 28 days.
Common Problems on Concrete Jobs
Approval needed before next pour
The consultant requires verified cube results before approving the next pour or certifying progress payments. Without test records, work on site can be delayed.
No testing lab near the site
Cubes are made on site, but finding an accessible laboratory in Sarawak to test them on their due dates can be challenging.
Early warning on 7-day strength
When 7-day results look low, you need to know early so the site team and ready-mix supplier can investigate before the 28-day mark.
Maintaining sample traceability
Lost or unlabelled cubes break the quality control record, leading to disputed pour records and questions from the supervising consultant.
Disputes with ready-mix suppliers
When compressive strength is in dispute, independent laboratory results give both the contractor and the ready-mix supplier the same measured figures to refer to.
Formal reports for project files
Every structural concrete pour requires documented compliance records. We issue formal test reports for submission in project handover documentation.
Concrete Tests We Carry Out
| Test Name | What It Tells You | Standard / Method |
|---|---|---|
| Cube compressive strength | Strength of the concrete supplied | To the contract specification |
| Cube compressive strength with capping | Strength where the cube face needs capping | To the contract specification |
How It Works
Booking & Details
Book and give the number of cubes, casting dates and required testing ages.
Delivery to Lab
Cubes are delivered to our laboratory ahead of their designated test date.
Laboratory Testing
Cubes are inspected, capped if required, and crushed in the compression machine.
Formal Reporting
You receive a formal test report with individual and average compressive strengths.
Standards & Reporting
Testing follows Malaysian JKR specifications and standard geotechnical test methods. Final test reports are endorsed by a Professional Engineer (PEPC).
Read more in our FAQ →Related Services & Reading
Related services: Concrete & brick testing, Concrete coring test.
From our Technical Journal: Concrete compressive strength testing explained.
Frequently Asked Questions
What is a concrete cube test?
A standard concrete cube made from fresh concrete on site is cured and crushed under compression in the laboratory to determine its compressive strength.
At what ages are cubes usually tested?
Cubes are most commonly tested at 7 and 28 days, as set out in the contract specification. The 7-day test provides an early indication of strength development, while the 28-day test is the standard benchmark for compliance.
What if cube results fail?
If cube results fail to meet the required strength, the consultant may ask for non-destructive testing or core samples cut from the hardened structure. You can read more about core extraction on our concrete coring test page.
Can you collect cubes from site?
Please ask about collection when you book. Collection depends on project location and schedule, or you can arrange to deliver your cubes directly to our laboratory.
How do I book?
Use the booking form; give the project location, number of cubes, required test ages and cube dimensions.