Testing methods
| No. | Parameter to be determined | Method | Accred. |
| 1 | Testing of aggregates and measurements of unbonded layers | ||
| 1.1 | Testing of aggregates | ||
| 1.1.01 | Sampling of aggregates (≤ 20 mm) | LVS EN 932-1:1996 | A |
| 1.1.02 | Sampling of aggregates (> 20 mm) | LVS EN 932-1:1996 | A |
| 1.1.03 | Dividing of sample (preparation of A, B, C samples) | LVS EN 932-2:1999 | A |
| 1.1.04 | Dividing of sample (fine aggregates) | LVS EN 932-2:1999 | A |
| 1.1.05 | Dividing of sample (coarse aggregates) | LVS EN 932-2:1999 | A |
| 1.1.06 | Proctor specific gravity and optimum moisture (mold A, d=100mm), set of 5 samples | LVS EN 13286-2:2012 | A |
| 1.1.07 | Proctor specific gravity and optimum moisture (mold B, d=150mm), set of 5 samples | LVS EN 13286-2:2012 | A |
| 1.1.08 | Particle size distribution (fine and fracionated aggregates) | LVS EN 933-1:2012 | A |
| 1.1.09 | Particle size distribution (mixes 0/16 - 0/56) | LVS EN 933-1:2012 | A |
| 1.1.10 | Particle size distribution (mixes > 0/56) | LVS EN 933-1:2012 | A |
| 1.1.11 | Water content | LVS EN 1097-5:2012 | A |
| 1.1.12 | Filtration coefficient for sand (without determination of Proctor properties) | Road specifications 2019 12.3.p.; Road construction specifications ABS 2023/1 8.3.p | A |
| 1.1.13 | Determination of percentage of crushed particles in coarse and all-in natural fractionated aggregates | LVS EN 933-5:2023 | A |
| 1.1.14 | Determination of percentage of crushed particles in coarse and all-in natural mixtures of aggregates | LVS EN 933-5:2023 | A |
| 1.1.15 | Immediate bearing index (without determination of Proctor properties) | LVS EN 13286-47:2014 | |
| 1.1.16 | California bearing ratio - CBR (without determination of Proctor properties), with 96h soaking | LVS EN 13286-47:2014 | |
| 1.1.17 | Determination of particle density (without water absorption) | LVS EN 1097-6:2022 | A |
| 1.1.18 | Determination of particle density and water absorption | LVS EN 1097-6:2022 | A |
| 1.1.19 | Flow coefficient of aggregates (with particle density determination) | LVS EN 933-6:2014 | A |
| 1.1.20 | Methylene blue test | LVS EN 933-9 + A1:2019 | |
| 1.1.21 | Sand equivalent test* | LVS EN 933-8 + A1:2019 | |
| 1.1.22 | Flakiness index* | LVS EN 933-3:2014 | |
| 1.1.23 | Shape index | LVS EN 933-4:2012 | A |
| 1.1.24 | Los Angeles Coefficient | LVS EN 1097-2:2020 | A |
| 1.1.25 | Determination of the resistance to wear by abrasion from studded tyres (Nordic test), with determination of particle density* | LVS EN 1097-9:2014 | |
| 1.1.26 | Magnesium sulfate test | LVS EN 1367-2:2011 | A |
| 1.1.27 | Determination of liquid and plastic limits of soil | ASTM D 4318-05 LVS CEN ISO 17892-12:2018 | |
| 1.1.28 | Determination of pH of soil | Instrukcija | |
| 1.1.29 | Determination of the content of organic compounds | Road specifications 2019, 12.5.p.; Road construction specifications ABS 2023/1 8.5.p | |
| 1.1.30 | Determination of the loose bulk density (fine aggregates) | LVS EN 1097-3:1998 | |
| 1.1.31 | Determination of resistance to freezing and thawing | LVS EN 1367-1:2013 | |
| 1.2 | Measurements of unbonded layers | ||
| 1.2.01 | Determination of the volumetric weight of the soil or sand layer by the ring method | BS 1377-9:1990 | A |
| 1.2.02 | Determination of the volumetric weight of soil or aggregates ≤ 45 mm layer by the sand replacement method | ASTM D 1556-07 | |
| 1.2.03 | Aggregates ≤ 45mm layer determination of compaction (point Proctor) | ASTM D 1556-07 LVS EN 13286-2:2012 | |
| 1.2.04 | Aggregates ≤ 45mm layer determination of compaction (point Proctor, without drying) | ASTM D 1556-07 LVS EN 13286-2:2012 | |
| 1.2.05 | Measurements of compaction and/or bearing capacity of the constructed unbound layer with operational testing equipment (penetrometer or falling weight deflectometer) | Instruction | |
| 1.2.06 | Plate load test (determination of EV1 un EV2) | DIN 18134:2012 | A |
| 1.2.07 | Thickness measurements of unbonded layers (per layer), including digging or coring | Road specifications 2019 5.p.; Road construction specifications ABS 2023/1 5.p | |
| 1.2.08 | Measurements of the thickness of the constructive layers of unbound gravel roads up to a depth of 1m | - | |
| 2 | Testing of bituminous binders | ||
| 2.1.01 | Sampling bituminous binders | LVS EN 58:2013 | A |
| 2.1.02 | Bitumen recovery by Rotary evaporator | LVS EN 12697-3 + A1:2019 | |
| 2.1.03 | Preparation of test samples of bitumen | LVS EN 12594:2015 | |
| 2.1.04 | Determination of needle penetration of bitumen | LVS EN 1426:2019 | A |
| 2.1.05 | Determination of the softening point of bitumen (Ring and Ball method) | LVS EN 1427:2019 | A |
| 2.1.06 | Determination of the Fraass breaking point of bitumen | LVS EN 12593:2019 | |
| 3 | Testing of bituminous bounded materials and layers | ||
| 3.1 | Testing of bituminous mixtures | ||
| 3.1.01 | Sampling of bituminous mixtures | LVS EN 12697-27:2017 | A |
| 3.1.02 | Dividing of sample of bituminous mixtures (preparation of A, B, C samples) | LVS EN 12697-28:2020 | A |
| 3.1.03 | Preparation of sample for testing | LVS EN 12697-28:2020 | A |
| 3.1.04 | Preparation of bituminous specimens by impact compactor (Marshall samples) | LVS EN 12697-30:2019 | A |
| 3.1.05 | Determination of bulk density of bituminous specimens | LVS EN 12697-6:2022 (B, D metode) | A |
| 3.1.06 | Determination of the maximum density (with water) | LVS EN 12697-5:2019 (A metode: Tilpuma metode) | A |
| 3.1.07 | Determination of the maximum density (with solvent) | LVS EN 12697-5:2019 (A metode: Tilpuma metode) | A |
| 3.1.08 | Determination of void characteristics of bituminous specimens (calculation) | LVS EN 12697-8:2019 | A |
| 3.1.09 | Determination of soluble binder content (≤ 22 mm) | LVS EN 12697-1:2020 (B 1.7 metode) | A |
| 3.1.10 | Determination of soluble binder content (> 22 mm) | LVS EN 12697-1:2020 (B 1.7 metode) | A |
| 3.1.11 | Determination of particle size distribution (≤ 22 mm) | LVS EN 12697-2 + A1:2019 | A |
| 3.1.12 | Determination of particle size distribution (> 22 mm) | LVS EN 12697-2 + A1:2019 | A |
| 3.1.13 | Marshall stability and fluidity (without preparation of Marshall samples) | LVS EN 12697-34:2020 | A |
| 3.1.14 | Determination of the affinity between aggregate and bitumen | LVS EN 12697-11:2020; Road specifications 2019; Road construction specifications ABS 2023/1 | |
| 3.1.15 | Determination of the water sensitivity of bituminous specimens with preparation of Marshall samples | LVS EN 12697-12:2018 (A metode) | A |
| 3.1.16 | Determination of binder drainage | LVS EN 12697-18:2017 | |
| 3.1.17 | Wheel tracking test with small size device (WTS), including sample preparation for testing (also cored samples) | LVS EN 12697-22:2022 LVS EN 12697-33:2019+A:2023 | A |
| 3.2 | Testing of bituminous layers | ||
| 3.2.01 | Sampling from bituminous layer by coring (d = 100 mm) | LVS EN 12697-27:2017 4.7.p. | A |
| 3.2.02 | Sampling from bituminous layer by coring (d = 150 mm) | A | |
| 3.2.03 | Sampling from bituminous layer by coring (d = 200 mm) | A | |
| 3.2.04 | Sampling from bituminous layer by coring (d = 250 mm) | A | |
| 3.2.05 | Determination of the thickness of bituminous pavement | LVS EN 12697-36:2022 | A |
| 3.2.06 | Determination of thickness and compaction (void content) of bituminous layer (thickness, sawing of samples, bulk density, maximum density, without coring) | - | A |
| 3.2.07 | Sawing of drilled samples | - | |
| 3.2.08 | Determination of Interlayer Bonding between asphalt layers | TP Asphalt-StB, Teil 80 | |
| 3.2.09 | LVS EN 12697-48 7.p. | ||
| 3.3 | Testing of hidraulicaly bound mixtures | ||
| 3.3.01 | Preparation, conditioning and determination of the compressive strength of hydraulically bound mixtures, 3 samples | LVS EN 13286-41:2022 | A |
| 3.3.02 | Determination of resistance to freezing and thawing of hydraulically bound samples (d=100 mm), 3 samples | LVS CEN/TS 12390-9:2017 (according with t° chart, image - 7) | |
| 3.3.03 | Determination of resistance to freezing and thawing of hydraulically bound samples (d=150 mm), 3 samples | LVS CEN/TS 12390-9:2017 (according with t° chart, image - 7) | |
| 3.4 | Testing of hidraulicaly bound layers | ||
| 3.4.01 | Sampling from hydraulically bound layers by coring (d = 100 mm) | - | |
| 3.4.02 | Sampling from hydraulically bound layers by coring (d = 150 mm) | - | |
| 3.4.03 | Preparation and compressive strength of cored samples hydraulically bound layers | LVS EN 13286-41:2022 | A |
| 4 | Testing of concrete and concrete products | ||
| 4.1 | Testing fresh concrete | ||
| 4.1.01 | Sampling of fresh concrete | LVS EN 12350-1:2019 | A |
| 4.1.02 | Slump test | LVS EN 12350-2:2019 | A |
| 4.1.03 | Density of fresh concrete | LVS EN 12350-6:2019 | A |
| 4.1.04 | Air content | LVS EN 12350-7:2019 | A |
| 4.2 | Testing hardened concrete | ||
| 4.2.01 | Dimensions of specimen | LVS EN 12390-1:2019 | A |
| 4.2.02 | Making and curing specimens for strength tests | LVS EN 12390-2:2019 | A |
| 4.2.03 | Compressive strength 150 mm cubes | LVS EN 12390-3:2019 | A |
| 4.2.04 | Compressive strength 100 mm cubes | LVS EN 12390-3:2020 | A |
| 4.2.05 | Density of hardened concrete | LVS EN 12390-7:2019 | A |
| 4.2.06 | Freeze-thaw resistance (150 mm cubes), 4 samples | LVS CEN/TS 12390-9:2017 5.p. (56 cycles) | |
| 4.2.07 | Freeze-thaw resistance (100 mm cubes), 4 paraugi | LVS CEN/TS 12390-9:2017 6.p. (56 cycles) | |
| 4.2.08 | Freeze-thaw resistance (100 mm cubes) | LVS 156-1:2017 A. annex 1. method, 2. metod | |
| 4.2.09 | Freeze-thaw resistance (150 mm cubes) | LVS 156-1:2017 A. annex 1. method, 2. method | |
| 4.2.10 | Flexural strength of test specimens | LVS EN 12390-5:2019 | |
| 4.2.11 | Tensile splitting strength of test specimens | LVS EN 12390-6:2019 | |
| 4.3 | Testing of Concrete paving blocks | ||
| 4.3.1 | Sampling of Concrete paving blocks | LVS EN 1338 B.2 annex | |
| 4.3.2 | Dimensions of Concrete paving blocks, 8 samples | LVS EN 1338 C annex | |
| 4.3.3 | Determination of resistance to freezing and thawing of Concrete paving blocks, 3 samples | LVS EN 1338 D annex (28 cycles) | |
| 4.3.4 | Overall water absobtion of Concrete paving blocks, 3 samples | LVS EN 1338 E annex | |
| 4.3.5 | Tensile splitting strength of Concrete paving blocks, 8 samples | LVS EN 1338 F annex | |
| 4.4 | Testing of Concrete paving flags | ||
| 4.4.1 | Sampling of Concrete paving flags | LVS EN 1339 B.2 annex | |
| 4.4.2 | Dimensions of Concrete paving flags, 8 samples | LVS EN 1339 C annex | |
| 4.4.3 | Determination of resistance to freezing and thawing of Concrete paving flags, 3 samples | LVS EN 1339 D annex (28 cycles) | |
| 4.4.4 | Overall water absobtion of Concrete paving flags, 3 samples | LVS EN 1339 E annex | |
| 4.4.5 | Flexular strenght of Concrete paving flags, 8 samples* | LVS EN 1339 F annex | |
| 4.5 | Testing of Concrete kerb units | ||
| 4.5.1 | Sampling of concrete road kerb units | LVS EN 1340 B.2 annex | |
| 4.5.2 | Sampling of concrete sidewalk kerb units | LVS EN 1340 B.2 annex | |
| 4.5.3 | Dimensions of concrete road kerb units, 8 samples | LVS EN 1340 C annex | |
| 4.5.4 | Dimensions of concrete sidewalk kerb units, 8 samples | LVS EN 1340 C annex | |
| 4.5.5 | Determination of resistance to freezing and thawing of Concrete kerb units, 3 samples | LVS EN 1340 D annex (28 cycles) | |
| 4.5.6 | Overall water absorbtion of Concrete kerb units, 3 samples | LVS EN 1340 E annex | |
| 4.5.7 | Flexular strength of concrete road kerb units*, 8 samples | LVS EN 1340 F annex | |
| 4.5.8 | Flexular strength of concrete sidewalk kerb units*, 8 samples | LVS EN 1340 F annex | |
| 5 | Other measurements and services | ||
| 5.1.01 | Measurement of pavement surface macrotexture depth using a volumetric patch technique | LVS EN 13036-1:2012 | |
| 5.1.02 | Visual assessment of defects of surface dressing | LVS EN 12272-2:2004 | |
| 5.1.03 | Analysis of test results, consultations | ||
| 5.1.04 | Driving to the site > 100 km one way | ||
| 5.1.05 | Driving to the site < 100 km one way | ||
| 5.1.06 | Idle time | ||
| 5.1.07 | Testing documentation in electronic format (e-signature) | ||
| 5.1.08 | Testing documentation in paper format and sending it by mail |