Load Frame for Universal Compression Test of Rocks
Product Code : EL-RTLE-10509
Load Frame for Universal Compression Test of Rocks (code EL-RTLE-10509) is used to determine the unconfined compressive strength of intact rock core specimens, which are cut to length, machined flat at the ends and loaded axially to failure. It has a 200 kN, 12-speed load frame (0.0064 to 1.25 mm/min), a 200 kN proving ring and a 25 mm dial gauge, and tests AX, BX and NX specimens of 38 mm to 100 mm diameter.
Get a quote: use the Add To Cart enquiry button below, or send your quantity and delivery location through the contact page.
Specifications
| Parameter | Detail |
|---|---|
| Use | Determining the unconfined compressive strength of intact rock core specimens |
| Test procedure | Specimen cut to length with ends machined flat, placed in the loading frame (heated to the test temperature if required) and loaded axially until peak load and failure |
| Standards | ASTM 2938 |
| Replaceable parts | |
| Load frame | 200 kN capacity, 12 speeds from 0.0064 to 1.25 mm/min |
| Proving ring | 200 kN |
| Dial gauge | 25 mm travel, 0.01 mm least count |
| Frame and specimen dimensions | |
| Horizontal clearance | 300 mm |
| Vertical clearance | 750 mm |
| Maximum platen diameter | 198 mm |
| Maximum platen travel | 100 mm |
| Platen set | Platen set for ASTM 2938 |
| Specimen diameter | 38 mm to 100 mm |
| Core sizes | AX, BX and NX rock specimens up to 100 mm |
| Supply | |
| Product code | EL-RTLE-10509 |
| Manufacturer | Engineering Lab Equipment, Ambala, Haryana, India |
What Is the Load Frame for Universal Compression Test of Rocks Used For?
Unconfined compressive strength is the axial stress at which an unsupported rock cylinder fails, and it is one of the basic properties used in rock classification and in the design of foundations, tunnels and slopes. After the core is cut to length and its ends machined flat, it is centred between the platens within the 300 mm horizontal and 750 mm vertical clearance and loaded at one of the 12 speeds. The proving ring and dial gauge are read as the load rises to its peak, and the failure load divided by the cross-sectional area of the core gives the strength. The standard listed for it is ASTM 2938.
What to Specify When Ordering
- Quantity — the number of load frames required.
- Specimen size — the core size to be tested, AX, BX or NX, within 38 mm to 100 mm diameter.
Frequently Asked Questions
What test does this load frame carry out?
It determines the unconfined compressive strength of intact rock core specimens by loading a cut and end-machined core axially until it reaches peak load and fails.
What capacity and speeds does the frame have?
The load frame has a capacity of 200 kN and 12 speeds from 0.0064 to 1.25 mm/min, with a 200 kN proving ring for measuring the load.
What rock core sizes can be tested?
The frame takes specimens from 38 mm to 100 mm in diameter, which covers AX, BX and NX rock cores up to 100 mm.
What are the frame clearances?
The frame gives a horizontal clearance of 300 mm and a vertical clearance of 750 mm, with a maximum platen diameter of 198 mm and maximum platen travel of 100 mm.
What dial gauge is included?
A dial gauge with 25 mm travel and a least count of 0.01 mm is included among the replaceable parts of the equipment.
Which standard is listed for this load frame?
The standard listed for it is ASTM 2938, and the platen set included with the frame is the one described for that test.
OEM Manufacturer
The Load Frame for Universal Compression Test of Rocks is made by Engineering Lab Equipment (Engineering Labs Equipment Pvt Ltd) at its works at Plot No. 43, Industrial Park, Sector 2, Growth Center, Saha, District Ambala, Haryana, India. The company designs, makes and tests rock testing equipment for specimen preparation, strength and durability tests for engineering colleges, polytechnics, technical training institutes and research laboratories in India and overseas, and can build equipment to an institution's own requirements. Tender and OEM enquiries are handled through the Tenders/OEM page.
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See the full Rock Testing Lab Equipment range or all Civil Engineering Lab Equipment.
Request a Quote
For this and other rock testing lab equipment, schools and colleges can contact Engineering Lab Equipment, a manufacturer, supplier and exporter based in Ambala, India. To ask for a quotation, send the number of load frames and the rock core sizes to be tested and your delivery location through the contact page, or use the Add To Cart enquiry button on this page.
Last updated: October 2026
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