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BD Instruments

Category: Product – Civil – Aggregate

BD InstrumentsProductsProduct – Civil – Aggregate

Flakiness Sieve

General Features:
Used to determine if aggregate is flaky; i.e. if thickness is less than 0,6 of nominal size.
Each sieve made from heavy gauge steel sheets in dimensions specified in the standards and coated with electrostatic paint.

Standards:
BS 812

Technical Specifications:

Sample Splitter (Riffle Box)

General Features:
Used for the precise division into two representative portions of materials such as: aggregates, sand, gravel and similar.
Electrostatically painted and they are supplied with 3 collecting pans.
Another model Mini Riffle Box is available as stainless steel.

Standards:
EN 933-3, ASTM C136

Technical Specification:

Bulk Density Measure

General Features:
Used to determine the loose bulk density and voids of aggregates.
Bulk Density Measures are manufactured from heavy gauge steel and coated against corrosion.

Standards:
EN 1097–3, ASTM C29-97

Technical Specification:

Large Capacity Sample Splitter

General Features:

Large Capacity Sample Splitter is used to obtain the representative samples in required quantity for the related tests from the aggregates parts which comes to laboratory. 
Widths of Slots are adjustable between 12,5 mm with 100 mm. 
Large Capacity Sample Splitter consist of three parts; 
• Carrier,
• Splitter,
• Collecting pan 
All parts are manufactured from steel and electrostatic painted. 
Large Capacity Sample Splitter splits the sample to two equal volumes. 
Large Capacity Sample Splitter has been designed so that no samples remain on the surfaces during operation.

Wheels are available as an option and should be ordered separately.

Technical Specification:

Accessories / Spare Parts:

Flakiness (Thickness) Gauge

General Features:
To verify if aggregate is flaky; i.e. if its thickness is less than 0.6 of its nominal size.

Standards:
BS 812

Technical Specification:

Length Gauge

Length Gauge

General Features:
Used to determine the elongation index of aggregates: i.e. if length is more than 1.8 of nominal size. Mounted on a hardwood base.

Standards:
BS 812

Technical Specification:

Shape Index Caliper

Shape Index Caliper

General Features:
For measuring the length/thickness ratio of individual particles.

Standards:
EN 933–4, 933–5, 933–7
Technical Specification:

Proportional Caliper

General Features:
Use for the rapid and easy determination of percentage of flat particles, elongated particles, or both in coarse aggregate fractions of 9.5mm (3/8 in) or larger.

Budget Caliper consists of 6″ x 16″ (152.4 x 406.4mm) base plate with four rubber feet for stability, two fixed posts and a 13in (330mm) pivoting arm. The positioning of the pivoting arm allows to obtain desired ratio among 1:2, 1:3, 1:4, or 1:5.

Four-Station Caliper is similar, but provides openings for all four ratios simultaneously, without the need to reposition the pivot screw. Manual testing can be performed more efficiently. Moveable posts are also replaceable.

Standards:
ASTM D4791, BS 812:105-1

Technical Specification: