Sandberg Remains Open During This Challenging Time
Whilst many of our staff are working from home during these unprecedented times, all our activities remain open for business in line with government guidelines. We have adjusted our operations so that staff remain safe. Currently, although we are working at a reduced capacity, we are meeting client demands and are welcoming new enquiries.
Fresh Concrete Testing
The suitability of a concrete for any task is initially assessed whilst that concrete is still in its freshly mixed state before setting occurs:
- Is it workable?
- Will it pump
- Does it hold together or segregate?
- Is it air entrained?
- Will it bleed?
Well established tests are used to categorise fresh concrete properties.
- Slump test - the most widely used test for assessing the workability of concrete of normal consistency (slump 10mm to 200mm).
- Flow Table test - for concretes that are more free flowing (slump 180mm+).
- Vebe Test - for concretes that are not workable in the normal sense, the test uses intergal vibration.
Control and measurement of air content is easily assessed using a pressure type air meter.
Fresh density, compactability and bleeding can all be measured.
From Quality Control and Mix Design assessment to Admixture testing, Sandberg are able to carry out a comprehensive range of fresh concrete tests.
References: BS EN 12350 series, Testing fresh concrete
BS EN 480 series, Admixture test methods
BS 1881 series, Testing concrete
For further information contact: Richard Rogerson, Partner
Direct Tel: 020 7565 7080