Materials Archive

Materials Files

File size: 2.18 MB Download

Measurement of diffusion coefficients - Documentation (NT TR 615)

NT TR 615

  • A method to measure diffusion coefficients in plastic films and coatings is described. This method is based on weighing absorbed amounts of water when conditioned samples are exposed to water or water vapour. A similar procedure based on weight loss is also possible. The same method can be also be applied to measuring diffusion coefficients of organic solvents in plastic films and coatings.

File size: 1.99 MB Download

Matresses - Burning behaviour - Full scale test (NT TR 602)

NT TR 602

  • A new test method for testing of fire properties of mattresses is proposed. The method is intended to evaluate the full scale burning behaviour of a complete mattress or bed system when exposed to a flaming ignition source. Fire performance criteria, for mattresses used in public occupancies, are proposed.

File size: 672.25 KB Download

Guideline for selection of accelerated corrosion test for product qualification (NT TR 597)

NT TR 597

  • The Guideline in this report has been prepared as a framework for comparing existing accelerated corrosion tests and should be applicable in the choice of best method and procedure for qualification testing of a product with respect to corrosion resistance.

File size: 1.21 MB Download

Resthållfasthet hos brandskadad betong (NT TR 596)

NT TR 596

  • I projektet har självkompakterande betong med respektive utan fibrer samt en konventionell betong, K30 ingått. Av dessa göts provplattor som sedan exponerades för brand enligt ett standardförfarande. Ur plattorna och ur referensprover borrades kärnor för vidare provning. De metoder som tillämpats är tryck och spräckhållfasthet, ultraljud, BET, mikroskopi samt borrmotstånd och punktlastindex.

File size: 2.37 MB Download

Stain test for Natural Stones (NT TR 595)

NT TR 595

  • This study focuses on the development of a standardised procedure for assessing the staining sensitivity of natural stones with and without surface treatment. The following different stone types with different mineralogy, chemistry and surface finishing were used: marble, mica-schist, ultrabasitee, granite and limestone.

File size: 273.80 KB Download

Analysis of mortars with additives (NT TR 594)

NT TR 594

  • Existing methods for the analysis of masonry and rendering mortars were developed for the analysis of well defined simple mortars. Mortars used today are to a large extent hybrid mortars with different additives and filler. Analysing complex mortars with additives and fillers requires analytical routines that are more versatile.

File size: 381.65 KB Download

Testing durability of treated wood according to EN 252 - Interpretation of data from Nordic test fields (NT TR 591)

NT TR 591

  • To evaluate the effectiveness of new wood preservatives intended for treated wood in ground use there is an European standard, EN 252. The test shall run for five years before any interpretation of the results can be made.

File size: 245.53 KB Download

Corrosion testing of electronic units (NT TR 590)

NT TR 590

  • Nowadays, the demand for better and reliable products is high, whereas the time between the idea of a product and the production decreases. This is especially the case for products containing electronics, which are part of our everyday life. Because electronic products are submitted to all kinds of environments, especially corrosive environments, the demand for adapted corrosion testing methods assuring their well functioning after years of use is needed.

File size: 1.14 MB Download

Linear calibration of axial load fatigue testing machines (NT TR 579)

NT TR 579

  • A method of linear calibration of axial load fatigue testing machines is proposed. It is built on the understanding obtained from a vibration analysis of the force transfer function from the load cell of the machine to a fabricated calibration bar. The results have been successfully verified on a commercial testing machine installed at SP in Borås.

File size: 9.46 MB Download

Application of WST-method for fracture testing of fibre-reinforced concrete (NT TR 575)

NT TR 575

  • To evaluate the reproducibility of the wedge-splitting test method and to provide guidelines, a round robin study was conducted in which three labs participated.

File size: 9.72 MB Download

Nordic sewer system inspection manual - Part 1 - Pipelines (NT TR 574)

NT TR 574

  • The present manual includes standard definitions, pictures, and drawings for the purpose of describing observations of sewer systems provided by visual inspection. The overall objective is to describe how these inspections can be performed on an identical level in the Nordic countries.

File size: 344.79 KB Download

Measurement of drum sound (NT TR 573)

NT TR 573

  • The interest in the effect of background noise on our health and capacity for work has increased. One of the disturbing factors in office spaces, schools etc. is the drum sound, especially when the flooring consists of thin wood parquet or laminate. Drum sound is the noise that appears when an object, e.g. a foot, hits the flooring in the same room as the receiving ear.

File size: 432.80 KB Download

Metod för bestämning av vattenpermeabiliteten hos betong (NT TR 571)

NT TR 571

  • Vattenpermeabilitet är i många fall avgörande för beständighet och livslängd hos porösa material som t.ex. betong. Det finns idag ingen standardiserad metod för bestämning av Darciansk permeabilitet.

File size: 2.07 MB Download

Steel emissivity at high temperatures (NT TR 570)

NT TR 570

  • A new test method was developed at VTT for the determination of the emissivities of different types of steel and other metallic materials as a function of the temperature of the material.

File size: 1.99 MB Download

Provtagning och analys av träskyddsbehandlat virke (NT TR 567 - Swedish)

NT TR 567

  • The aim of this investigation, which was carried out with financial support from the Nordic Innovation Centre (Project no 1628-03) and the Nordic Wood Preservation Council, was to study the Nordic rules for quality control and certification of preservative-treated wood and to identify in what respect they were interpreted differently by the inspectors in Denmark, Norway and Sweden, and thus where there was a need for clarifying guidance.

File size: 2.09 MB Download

Density of loose-fill insulation material exposed to cyclic humidity conditions (NT TR 565)

NT TR 565

  • This report presents a proposal for a standardised method for creep tests and the empirical framework necessary for determining the density for volume-stable state of a granulated loose-fill material as a function of the applied stress when exposed to a climate characterised as cyclic humidity conditions.

File size: 317.96 KB Download

Nordic evaluation of methods for testing fresh self-compacting concrete (NT TR 558)

NT TR 558

  • In this study a modified inter-comparison test was proposed for evaluating the precision of methods for testing fresh SCC whose properties are not identical from laboratory to laboratory or even from batch to batch. The modification includes collecting a number of sets of similar equipment and carrying out a local inter-comparison test in each laboratory by different operators, each operating a number of sets of equipment.

File size: 2.25 MB Download

A new standard for machine strength grading of timber - assessment and application (NT TR 554)

NT TR 554

  • A new standard “prEN 14081 Timber structures – Strength graded structural timber with rectangular cross section” is under development. This standard lays down the requirements for visual and machine graded structural timber and results in the possibility to CE-mark structural timber.

File size: 2.09 MB Download

Fasteners for timber frame sheeting – Development of a test method for single fasteners (NT TR 553)

NT TR 553

  • The report deals with a test method to evaluate the mechanical response of single fastener joints for sheeting of timber frames. The materials investigated include chipboards, gypsum boards and fibreboards.

File size: 6.40 MB Download

Test methods adapted for alternative and recycled, porous aggregate materials (Part 3 - Water absorption) (NT TR 550)

NT TR 550

  • This is the third report in a series of projects dealing with test methods for mainly alternative and recycled aggregates (1292-96 and 1393-97). This study focuses on the problem of water absorption of porous aggregates in atmospheric pressure in accordance with EN 1097-6 Determination of particle density and water absorption, and the implication on durability aspects.

File size: 1.49 MB Download

Improved method for AFTM G48 corrosion testing of welds (NT TR 548)

NT TR 548

  • The Nordtest project reviews common practices based on ASTM G48 in order to establish and validate an improved method for pre-qualification of stainless steel welds. Different weld qualities of super duplex stainless steel (UNS32750) were tested in the comparative study.

File size: 275.72 KB Download

Tests of cellular plastic (XPS and EPS) insulation boards, resistance to cyclic compressive loading with square-wave load (NT TR 547)

NT TR 547

  • Cellular plastic boards can be used in railway embankments in order to lower the pressure on the underground and to provide insulation. The long-term deformation  resistance is of great importance for this application.

File size: 3.47 MB Download

Korrosjonspåvirkning fra brannimpregnert trevirke - En ringtest og ny prøvemetode (NT TR 546)

NT TR 546

  • En akselerert metode for å vurdere korrosjonspåvirkningen fra brannimpregnert tre på festemidler er testet ut ved å eksponere prøvene i et fuktig klima (RF = 90 %) ved 27 °C og sammenlikne med korrosjon i utendørs eksponering i ett år.

File size: 296.37 KB Download

Estimation of cement_binder profile parallel to the determination of chloride profile in concrete (NT TR 541)

NT TR 541

  • In this study, two methods for determination of calcium content parallel to the determination of chloride content have been proposed and evaluated for their precisions.

File size: 3.71 MB Download

Superpave test methods for asphalt - Procedure for DSR testing (NT TR 538)

NT TR 538

  • Between 1987 and 1993 in the U.S.A., the Strategic Highway Research Program (SHRP) surveyed all aspects of the physical tests currently carried out on bitumen, and it was shown that new performance-based methods, such as Dynamic Shear Rheometer (DSR), Bending Beam Rheometer (BBR) and Pressure Ageing Vessel (PAV), are needed.

File size: 513.25 KB Download

Inter-laboratory comparison of fatigue test with evaluation of the participating laboratories calculations of measurement uncertainty (NT TR 533)

NT TR 533

  • In this paper a fatigue testing inter-laboratory comparison is presented. Six Nordic laboratories performed fatigue tests on steel specimens. The specimens were tested with different stress levels (460 MPa, 430 MPa and 400 MPa) and with the load ratio R=Smin/Smax =0.1. On each level four specimens were tested. The participating laboratories reported the results together with measurement uncertainty.

File size: 960.76 KB Download

Methods for test of reinforcement material properties based on mix of stainless steel and carbon steel (NT TR 528)

NT TR 528

  • The project describes methods for testing of corrosion resistance and mechanical properties of reinforcing steel consisting of stainless steel and carbon steel. Methods for testing of mechanical properties (tensile strength and fatigue) are based on the existing standards for traditional carbon steel reinforcement, NS 3420, NS 3575, NS-EN 288-3, NS 480, NS 3473 and ASTM E 739-1.

File size: 7.76 MB Download

Method for measurement of complex microstructures using image processing (NT TR 526)

NT TR 526

  • The objective of the Nordtest project is to come up with recommended guidelines for sample preparation, image acquisition and analysis of the ?-phase of the microstructure. The outset of our study is based on questionnaire to nine laboratories in Europe active in the field. The routines used are reviewed.

File size: 805.87 KB Download

An experimental comparison between isothermal calorimetry, semi-adiabatic calorimetry and solution calorimetry for the study of cement hydration (NT TR 522)

NT TR 522

  • This is the final report from NORDTEST project 1534-01 in which four Nordic and one US partners have made hydration measurements on two types of cement with different calorimetric methods.

File size: 1.55 MB Download

Calibration of the electrochemical methods for the corrosion rate measurement of steel in concrete (NT TR 521)

NT TR 521

  • In this study, steel bars were embedded in concrete slabs with different chloride introductions (0%, 1.5%, 3% and 6 % by mass of cement) in order to induce corrosion at different rates.

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