Mackintosh Probe Test in Sarawak
Shallow soil strength and consistency checks for engineers and contractors on road, drainage and building projects across Sarawak.
Common Ground Problems on Site
Soft ground suspected before construction
Soft ground is suspected before a road, drain or small building goes in. Probing identifies weak strata before earthworks or structural foundations commence.
Consultant requires probe results
The consultant wants probe results for the foundation design. Penetration resistance records provide the shallow soil data needed to support engineering submissions.
Subsoil variation across the site
Soil varies across the site and one borehole is not enough. Multiple probe points map shallow layer changes quickly between deeper exploratory holes.
Peat and soft clay in Sarawak lowlands
Peat and soft clay are common in Sarawak lowlands. Probe testing indicates the depth to firmer strata and identifies pockets of compressible organic material.
Confined access for heavy equipment
Access is tight for heavy rigs on restricted or swampy terrain. Hand-portable probe equipment reaches test locations that vehicle-mounted rigs cannot access.
Clear blow count logs needed
Results are needed in a clear report with the blows recorded. We record blow counts per depth increment and issue a formal test report for your engineering records.
Tests We Carry Out
| Test Name | What It Tells You | Standard / Method |
|---|---|---|
| Mackintosh / JKR probe | Resistance of shallow soil layers, recorded as blows per depth | To the contract specification |
How It Works
Booking & Details
Book with site location and number of probe points.
Site Mobilisation
Our team carries out the probes on site.
Data Compilation
Blow counts and penetration logs are compiled.
Formal Reporting
You receive a formal test report.
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: In-situ field testing, Geotechnical testing.
From our Technical Journal: Mackintosh probe test explainer, Dynamic cone penetrometer test guide.
Frequently Asked Questions
What is a Mackintosh probe test?
A Mackintosh probe test is a light dynamic penetrometer test used to assess the consistency and relative bearing capacity of shallow soil layers by driving a pointed cone into the ground with a drop hammer and recording the blows per depth.
What is the difference between a Mackintosh probe and a JKR probe?
The JKR probe is the Malaysian name often used for the same kind of light dynamic penetrometer. Both use a small cone driven by a drop hammer to check shallow soil resistance.
When is a probe test used?
It is used during preliminary site investigations, shallow foundation design checks, road and drainage route assessments, and to identify soft ground or peat layers across a site.
Do you come to site in Sarawak?
Yes, our team carries out probe testing on site across Sarawak; see service areas.
How do I book?
Use the booking form; provide your site location and the number of probe points required.