A 50 Hz vibrating table for compacting concrete into cube moulds per IS 516 — essential civil-lab equipment stocked at Multi Trade Combines, Guwahati, price on request.
Concrete cube testing is the backbone of quality control on every road, bridge, and building project in Assam and across Northeast India. The cube specimen's strength result is only as reliable as the compaction procedure used when filling the mould. Hand-rodding alone, especially in high-slump or low-water-cement-ratio mixes, leaves macro voids that reduce the apparent compressive strength — leading QC engineers to reject batches that are actually within specification, or worse, accept batches that are not.
A vibrating table operating at 50 Hz (the Indian grid frequency) eliminates this variable. The table shakes the mould while fresh concrete is filled in two or three layers, driving out entrapped air uniformly. IS 516 specifies this method for standard cube compaction when a vibrating table is available. PWD divisions, NHIDCL contractors on hill roads in Meghalaya and Manipur, construction firms on airport and railway projects — all maintain vibrating tables in their site labs to satisfy third-party audits.
The table itself is a steel platform mounted on rubber isolators with an electric vibrating motor clamped below. Common table sizes accept one or two 150 mm cube moulds simultaneously. Variable-amplitude models also serve beam mould and cylinder mould compaction. Multi Trade Combines stocks this alongside IS-certified cast iron cube moulds and PVC cube moulds, so site labs can provision the complete cube-testing setup through a single Guwahati supplier who ships across the Northeast.
| Category | Civil Lab Equipment |
|---|---|
| Key specs | Cube mould compaction · 50 Hz |
| Standard | IS 516 compliant compaction procedure |
| Table capacity | Typically 1–2 × 150 mm cube moulds simultaneously |
| Power supply | Single-phase 230 V, 50 Hz |
| Availability | In stock — price on request |
Cube moulds, compaction equipment and more for civil labs in Guwahati
In India, concrete cube moulds (150 × 150 × 150 mm) are compacted on a vibrating table as per IS 516. The table vibrates at 50 Hz to consolidate fresh concrete mix in the mould without introducing air voids. This ensures the cube specimens accurately represent the mix design strength when tested at 7 and 28 days.
Yes. Multi Trade Combines stocks vibrating tables alongside cast iron ISI-certified cube moulds and PVC cube moulds. Civil lab technicians and QC contractors can source the complete compaction set — table, moulds, and tamping bar — from a single supplier in Guwahati, avoiding fragmented procurement across multiple vendors.