IS 2386 (IV) and ASTM C131 compliant aggregate abrasion testing machine for road-construction QC labs across Northeast India.
The Los Angeles Abrasion Test Machine is the standard civil lab apparatus for measuring the hardness and wear resistance of road aggregate. A cylindrical steel drum of prescribed internal diameter rotates with a sample of graded aggregate and a fixed charge of cast steel balls. After 500 revolutions (or 1000 for larger aggregate sizes per ASTM C535), the material is sieved and the loss in mass is expressed as a percentage — this is the LA Abrasion Value. IS 2386 Part IV and ASTM C131 both mandate this test for aggregates used in wearing courses, base courses, and structural concrete in bridges and buildings.
Multi Trade Combines supplies IS 2386 (IV)-compliant LA Abrasion machines to government PWD labs, NHAI and NHIDCL contractor QC labs, aggregate quarries, academic civil engineering departments, and third-party testing consultants across Assam and the wider Northeast. In a region where road and bridge construction is accelerating under the SARDP-NE and North East Road Network Connectivity Improvement programmes, reliable in-house testing equipment shortens QC cycles and reduces project delays from off-site lab bottlenecks.
The L.A. Abrasion Machine is typically purchased alongside the Impact Test Apparatus (for aggregate impact value per IS 2386 Part IV), the Aggregate Crushing Value apparatus, and the Flakiness and Elongation sieves — together covering the complete aggregate quality test suite required by MORTH and IS 1343/456 specifications. We also supply cube moulds, compression testing machines, vibrating tables, and Marshall test equipment for bituminous mix design labs.
For government procurement, we can provide GST-compliant invoices, calibration documentation, and after-delivery commissioning support across Guwahati, Dibrugarh, Jorhat, Shillong, Dimapur, and Imphal.
| Category | Civil Lab Equipment |
|---|---|
| Key specs | IS 2386 (IV) · ASTM C131 |
| Compliance | IS 2386 (Part IV), ASTM C131, ASTM C535 |
| Drive | Electric motor, 30–33 RPM drum |
| Availability | In stock — price on request |
The machine complies with IS 2386 (Part IV) and ASTM C131 / C535 for determining the abrasion resistance of coarse aggregates used in road construction and concrete. A rotating steel drum with an abrasive charge of steel balls tumbles a weighed sample of aggregate; the percentage weight loss after a set number of revolutions gives the Los Angeles Abrasion Value, which is used to assess aggregate suitability for highway, runway, and concrete work.
Government PWD and NHIDCL quality-control labs, NHAI contractor QC labs, state road agencies in Assam, Meghalaya, and Manipur, and private aggregate quarry testing labs all require the machine to certify aggregate batches before supply to road and bridge projects. With the construction boom in Northeast India — highways, bridges, and airport runways — third-party testing labs in Guwahati and Dibrugarh increasingly invest in in-house L.A. Abrasion sets to reduce turnaround time.