< Previous200Aggregatestel: +44 (0)1525 249 200 • email: ele@eleint.co.uk • www.ele.com200Sampling & Preparation of AggregatesSampling & Preparation of AggregatesSampling and preparation of aggregates and fillers is necessary for a variety of reasons including research, design and quality control. The main aim of sampling is to obtain a sample representative of the average quality. Sampling techniques and procedures are described in various standards including BS 812: Part 101 and 102 and ASTM D75. Individual items of equipment necessary for sampling and preparation are described in the soils section of the catalogue.Drying, Weighing & Moisture ContentMost test techniques involve the use of drying ovens and balances. The moisture content of aggregate is of importance e.g. when batching concrete or when compacting unbound materials to achieve a specified density. Accurate means of determining moisture content are specified in various Standards and include methods suitable for use in the laboratory or on the construction site.Oven Drying MethodGrouped Product Standards:BS 1377, BS 1924, BS 2648, BS 598, BS 598-104, EN 12697-32, EN 13280-4The standard method for determining the moisture content of soil is the Oven Drying Method, which is recommended for a Soils Laboratory. See page 270 of the Soil section.Particle Size & ShapeGrouped Product Standards:EN 933-1, BS 812, ASTM C136See Laboratory Testing Equipment section pages 271-276 for a comprehensive range of Sieves and Shakers.Sand Equivalent ValueGrouped Product Standards:AASHTO T176, ASTM D2419.See the Soils Testing Equipment section pages 26-28 for further information.Flakiness Sieves & GaugesFlakiness GaugeProduct Code: 42-0410Product Standards:BS 812Constructed of heavy gauge sheet steel to the dimensions specified in BS 812.SpecificationsWeight (kg)0.06Sieves Set For Flakiness TestingProduct Code: 42-0600Product Standards:BS 813Comprising 1 each of, 4.9 mm, 7.2 mm, 10.2 mm, 14.4 mm, 19.7 mm, 26.3 mm and 33.9 mm.Grid SievesA series of grid sieves formed from 5 mm diameter steel parallel bars securely fixed in a metal frame.Product CodePassing Size (mm)Retained Size (mm)Slot Width (mm)42-0300542.542-03026.353.1542-030486.3442-0306108542-030812.5106.342-03101612.5842-031420161042-0316252012.542-031831.5251642-03204031.52042-032250402542-0324635031.542-0326806340201Aggregateswww.ele.com • email: ele@eleint.co.uk • tel: +44 (0)1525 249 200201Determination of Flakiness & ElongationDetermination of Flakiness & ElongationAggregates which are flaky and/or elongated will often lower the workability of a concrete mix and may also affect long term durability. In bituminous mixtures flaky aggregate makes for a harsh mix and may also crack and break up during compaction by rolling.202Aggregatestel: +44 (0)1525 249 200 • email: ele@eleint.co.uk • www.ele.com202Determination of Flakiness & ElongationDetermination of the Shape IndexThis method described in EN933-4 measures the ratio of length to width of individual aggregate particles using a vernier caliper and a specially designed 3:1 length gauge.Shape Index Caliper 3.1Product Code: 42-0821Product Standards:EN 933-4Designed to measure the ratio of length to width of individual aggregate particles.SpecificationsWeight (kg)1Elongation IndexThis method classifies aggregate elongation by measuring the length of individual particles. The test is not applicable to material retained on a 63 mm BS test sieve.Length GaugeProduct Code: 42-0820Product Standards:BS 812-105Manufactured to the dimensions specified in BS 182.SpecificationsWeight (kg)0.742-082042-0821Vernier Caliper (LCD) Range 0 to 200 mm x 0.01 mmProduct Code: 81-0590Product Standards:EN 933-4Dual measuring range, highly accurate, vernier caliper 0 to 200 mm x 0.01 mm (8 inch x 0.001 inch) to comply with BS 887 and BS 6365. Complete with liquid crystal display.SpecificationsWeight (kg)0.1Measuring Range (mm)0 to 200 x 0.01Vernier Caliper Range 0 to 200 mm x 0.02 mmProduct Code: 81-0588Product Standards:EN 933-4, BS 1377Vernier caliper 0 to 200 x 0.02 mm. Graduated in mm and inches.SpecificationsMeasuring Range (mm)0 to 200 x 0.02203Aggregateswww.ele.com • email: ele@eleint.co.uk • tel: +44 (0)1525 249 200203Density, Voids & BulkingDensity, Voids & BulkingAs with any porous material, the value obtained for the particle density of an aggregate will depend on the method of test and apparatus used. Different particle sizes within a sample often have different particle densities. The term particle density expressed in Mg/m³ is numerically equal to the specific gravity. Various methods, depending upon the type and size of material to be tested, are specified in standards for testing aggregate.Buoyancy Balance 6.2 kg x 0.1 g supplied with Support Frame, Water Tank & Suspension HookProduct Code: 42-1000/01, 42-1000/02Method for Aggregate between 63 mm and 5 mm.Product Standards:EN 1097-6, EN 12697-6, BS 812, ASTM C127, AASHTO T85The buoyancy balance system developed by ELE consists of a rigid support frame incorporating a water tank mounted on a platform. A mechanical lifting device is used to raise the water tank through the frame height, immersing the specimen suspended below the balance. The balance supplied may also be used as a standard weighing device, thus providing a versatile and comprehensive weighing system in the laboratory. Further Information:For 220-240 V AC, 50-60 Hz, 1 ph.SpecificationsProduct CodePower Supply42-1000/01220-240 V AC, 50-60 Hz, 80 W42-1000/02110-120 V AC, 50-60 HzWire Basket, Brass with Handle, Nominal 6000 cm³ Capacity with 1.7 mm Wire MeshProduct Code: 42-1005Product Standards:EN 1097-6, EN 12697-6, BS 812, ASTM C127, AASHTO T85For BS 812 Relative Density.SpecificationsDimensions (mm)200 dia x 190 deep x 1.70 wire meshBulk Density MeasuresGrouped Product Standards:ASTM C138, ASTM C29, BS 812, EN 1097-3, EN 12350-6Manufactured from heavy gauge steel these bulk density measures comply with the requirements of either BS 812 or ASTM C-29. Other than the 3 litre size, all measures incorporate carrying handles as standard.Product CodeCapacity (Litres)34-28003034-28201534-28301042-2000742-19953204Aggregatestel: +44 (0)1525 249 200 • email: ele@eleint.co.uk • www.ele.com204Density, Voids & BulkingDetermination of Bulk Density of Aggregates SetGrouped Product Standards:BS 812Set Contains:Product CodeProduct34-0130Tamping Rod34-280030 ltrs Bulk Density Measure34-282015 ltrs Bulk Density Measure42-20007 ltrs Bulk Density Measure42-19953 ltrs Bulk Density MeasureParticle Density (Specific Gravity) & Water Absorption for Fine AggregatesThe Gas Jar method described in BS 812 is suitable for all aggregates smaller than 20 mm in size and is particularly suited to friable aggregates. Please see page 25 of the Soils Section.The Pyknometer method described in ASTM C128 is suitable for determining the particle density of samples of fine aggregates. Please see page 26 of the Soils Section.The particle density of fillers can be determined using the Density Bottle method specified for testing cement.Specific Gravity & Absorption of Fine Aggregates SetGrouped Product Standards:ASTM C128, AASHTO T84Set Contains:Product CodeProduct24-2885Pyknometer 1 kg capacity42-1700Sand Absorption Cone42-1720Tamping Rod81-4020Sample Tray (306 x 306 x 38 mm)Sand Absorption ConeProduct Code: 42-1700Product Standards:BS 812, ASTM C128, AASHTO T84Made of brass to the dimensions given in BS 812, ASTM C128 and AASHTO T84.SpecificationsDimensions: Top dia x base dia x H (mm)90 x 40 x 80Accessories:200 mm diameter BS Sieve 75 Micron Stainless Steel mesh. (79-0080)Funnel (82-2660)Sample Container, plastic 10 litres (81-3540)Sample Container, tinned steel 10 litres (81-3060)Sample Tray, 305 mm diameter x 50 mm (81-4700)Tamping Rod for Sand Absorption ConeProduct Code: 42-1720Product Standards:BS 812, ASTM C128, AASHTO T84For use with Cone. Tamping face 25 mm diameter.SpecificationsDimensions: Dia x H (mm)25.4 x 168205Aggregateswww.ele.com • email: ele@eleint.co.uk • tel: +44 (0)1525 249 200205Soundness & Chemical TestsSoundness & Chemical TestsThe presence of organic matter and certain chemicals can have a considerable influence on the strength and durability of concrete. The ability of aggregates to resist excessive changes in volume due to physical changes in the environment is also of importance. Knowledge of these potentially harmful factors will ensure that precautions can be taken at the mix design stage of a project.Chloride Content: Rapid MethodQuantab chloride titrators can be used for estimating the chloride content of aqueous solutions. They are suitable for site testing and quality control of aggregates requiring less than 30 minutes to obtain a result.Quantab Chloride Titrator Type 1175Product Code: 42-2950Type 1175 titration range 0.005% to 0.1% (30 to 600 ppm) NaCl. Pack of 40.SpecificationsRange (ppm)30 to 600Weight (g)10Quantab Chloride Titrator Strips Type 1176Product Code: 42-2952Type 1176 titration range 0.05 % to 1% (300 to 6000 ppm) NaCl. Pack of 40.SpecificationsRange (ppm)300 to 6000Weight (g)10206Aggregatestel: +44 (0)1525 249 200 • email: ele@eleint.co.uk • www.ele.com206Soundness & Chemical TestsOrganic Impurities in Fine AggregateIf aggregate contains organic impurities it may not be suitable for inclusion in concrete. Organic impurities, usually tannic acid and its derivatives, may interfere with the chemical reactions of hydration. Impurities are more likely to be found in fine (sand) aggregate.Glass BottleProduct Code: 42-3000Product Standards:ASTM C4012 ounce (300 ml approx) capacity, graduated at 2, 4 and 7 ounce positions, complete with screw cap.SpecificationsWeight (kg)0.34Colour StandardProduct Code: 42-3040Product Standards:ASTM C40, AASHTO T21With five organic colour transparencies mounted in a holder.SpecificationsColour StandardsFive, on non-fading glassDimensions W x D x H3 x 2-7/8 x 4 inches 76 x 73 x 102 mmWeightNet 4 oz (113 g)Spares/Consumables:Sodium Hydroxide Pellets 500g (82-7141)Soundness of AggregatesProduct Standards:ASTM C88, AASHTO T104, BS 812, EN 1367-2The soundness of aggregates to physical changes caused by the environment is important to the long-term durability characteristics of concrete. Excessive changes in volume can be caused by freezing and thawing, thermal changes at temperatures greater than freezing, and cycles of wetting and drying. For Hydrometers and Wire Baskets also see the Laboratory Equipment Section.Product CodeProduct82-3505Hydrometer Type L50 1150 to 1200 Relative Density82-3510Hydrometer Type L50 1250 to 1300 Relative Density207Aggregateswww.ele.com • email: ele@eleint.co.uk • tel: +44 (0)1525 249 200207Soundness & Chemical TestsWire Baskets (Various Sizes)SpecificationsProduct CodeStandardsDimensions dia x depthAperture81-4819BS 812 Type 1 EN 1367-265 mm x 80 mm150 µm wire mesh81-4821BS 812 Type 2 EN 1367-295 mm x 120 mm600 µm wire mesh81-4823BS 812 Type 3 EN 1367-295 mm x 120 mm1.18 mm wire mesh81-4825BS 812 Type 4 EN 1367-2120 mm x 120 mm3.35 mm wire meshSoundness of Aggregates in Sodium Sulphate or Magnesium Sulphate to ASTM C88 and AASHTO T104 SetProduct CodeProduct42-1005Wire Basket 6000 cm³ capacity 1.7 mm45-6550/0130 ltrs Heating Bath79-50308 inch dia ASTM Sieve 4 mm79-55008 inch dia ASTM Sieve 8 mm79-55508 inch dia ASTM Sieve 16 mm79-56008 inch dia ASTM Sieve 31.5 mm81-4821Wire Basket BS 812 Type 2 EN 1367-282-3505Hydrometer Type L50 1150 to 1200 Relative Density82-3510Hydrometer Type L50 1250 to 1300 Relative DensityHydrometerProduct Code: 82-3505Product Standards:BS 812, EN 1367-2, ASTM C88, AASHTO T104, BS 7188Type L50, ASTM C 88 graduated 1150 to 1200 relative density (used with sodium sulphate method).HydrometerProduct Code: 82-3510Product Standards:BS 812, EN 1367-2, ASTM C88, AASHTO T104Type L50, ASTM C 88 graduated 1250 to 1300 relative density (used with magnesium sulphate method).Sulphate Content: Rapid MethodA qualitative or semi-quantitative test is recommended for determining sulphate ions in aqueous solutions. Sulphate test strips are convenient measuring devices for preliminary assessment of sulphate content.Sulphate Test StripsProduct Code: 42-2958Detection range 200 to 900 mg/l. Pack of 100.SpecificationsWeight (g)10208Aggregatestel: +44 (0)1525 249 200 • email: ele@eleint.co.uk • www.ele.com208Mechanical PropertiesMechanical PropertiesThe diverse range of aggregates available to the engineer makes it essential to select a material that is adequate for a given application. The following equipment is designed to determine various mechanical characteristics that need to be known in order to select the most suitable type of aggregate.Aggregate Crushing Value (ACV) & Ten Percent Fines Value (TFV)These tests are a measure of the crushing properties of aggregate and use the same basic equipment. The ACV test requires a standard load of 400 kN to be applied over a period of 10 minutes while the TFV test measures the force required to produce a specified depth of plunger penetration.ADR Touch 1500 Compression Machine with Digital ReadoutProduct Code: 36-0720/01Product Standards:BS EN ISO 7500-1; ASTM E4; BS 812-110, BS 812-111The Compact 1500 range of compression machines has been designed to meet the need for a simple, economic and reliable means of ACV/TFV testing.Load Indication:The ADR digital readout is a microprocessor controlled instrument which is fitted as standard to all digital machines in the range. Load can be displayed in kN, lbf or kgf as selected by the operator. ±1500 kN / 350,000 lbf capacity. ±Efficient hydraulic power packs. ±Economic machines ideal for site use.SpecificationsPower Supply220-240 V AC, 50-60 Hz, 1 phForce Capacity (kN)1500Max Ram Travel (mm)50Dimensions L x W x H (mm)430 x 600 x 1035Rated Power (W)1350Cubes (Concrete)Up to 150 mmCylinders (Concrete)Up to 160 x 320 mmBlocksN/AFlexural TestingVia Flexural FrameTFV and ACVYesFrame TypeWeldedMax Vert. Clearance340 mmMax Hor. Clearance325 mmPlaten SizesLower, Upper 222 mmWeight (kg)350Note: All other ELE Compression Machines from the Concrete Section are suitable for ACV/TFV testing.209Aggregateswww.ele.com • email: ele@eleint.co.uk • tel: +44 (0)1525 249 200209Mechanical PropertiesAggregate Crushing Value & Ten Percent Fines Value ApparatusProduct Codes: 42-4300, 42-4500Product Standards:BS 812-112Comprising of 75 mm or 150 mm nominal diameter steel cylinder, plunger and base plate supplied complete with metal measure and tamping rod (2 sizes).Specifications150 mm Crushing Value Apparatus (42-4300)Nominal Diameter (mm)150Weight (kg)16.675 mm Crushing Value Apparatus (42-4500)Nominal Diameter (mm)75Weight (kg)3.5Spare Tamping RodsProduct Codes: 34-0130, 42-4580SpecificationsSpare Tamping Rod (34-0130)Dimensions (Dia x Length) (mm)16 x 600ACV / TFV Test (mm)150Spare Tamping Rod (42-4580)Dimensions (Dia x Length) (mm)8 x 300ACV / TFV Test (mm)75Spare Metal MeasuresProduct Codes: 42-4360, 42-4560SpecificationsSpare Metal Measure (42-4560)ACV / TFV Test (mm)150Spare Metal Measure (42-4360)ACV / TFV Test (mm)75Next >