Building Archive

Building Files

File size: 35.57 KB Download

Concrete, fresh: Compactibility with ic-tester (intensive compaction tester) (NT BUILD 427)

NT BUILD 427

  • The IC-tester compacts the mass sample (ca. 0.8 dm3) using a continuous, kneading action. Pressure and cyclic shearing is applied to the mass. At the end of the test an ICT-index is obtained which describes the amount of work needed to compact the sample to a specified density. The compaction takes place in a test cylinder with oscillating end plates in such a way that the concrete mass is subjected to cyclic shearing. The concrete cylinder which is obtained after the compaction may be subjected to compressive or splitting strength tests at different ages.

    This method can be employed in quality control of concrete as well as in research and product development.

File size: 960.45 KB Download

Wood: Fracture energy in tension perpendicular to the grain (NT BUILD 422)

NT BUILD 422

  • This standard specifies a method for determining the fracture energy of wood in tension perpendicular to the grain (mode I).

File size: 83.12 KB Download

Roofs: Watertightness under pulsating air pressure (NT BUILD 421)

NT BUILD 421

  • This standard defines a method to be used for water-tightness testing under pulsating air pressure of building elements and components to be fitted in roofs and supplied in the form of completely assembled and finished units.

File size: 54.90 KB Download

Building materials, wood: Moisture content (NT BUILD 420)

NT BUILD 420

  • This Nordtest method describes a method for measuring the moisture content of wood. Since it utilizes wooden probes with built-in electrodes which are embedded in wooden parts of building constructions where they can be left, it is very suitable for measurements over longer periods.

File size: 34.98 KB Download

Masonry units: Frost resistance (NT BUILD 419)

NT BUILD 419

  • The method can be applied to determine the frost resistance of masonry units, clay bricks, using an accelerated test.

File size: 18.93 KB Download

Wall coverings: Waterproofing on small test pieces (NT BUILD 389)

NT BUILD 389

  • The scope of this Nordtest method is to test and evaluate the waterproofing of wall coverings or wall treatments intended for use on board materials.

File size: 112.37 KB Download

Concrete: Heat development (NT BUILD 388)

NT BUILD 388

  • The method can be applied to determine the amount of heat developed in concrete during the hardening process. The heat development is described in terms of the produced energy as a function of the maturity of the concrete.

    The information obtained may be used to predict the temperature development and distribution in a structure where concrete hardening is taking place under varying conditions.

File size: 29.00 KB Download

Insulation material as underlay for roofing membranes: Resistance to mechanical load on projecting ends (NT BUILD 387)

NT BUILD 387

  • The scope of this Nordtest method is to test the resistance to mechanical loads of projecting ends of insulation materials intended for use as underlay for roofing membranes.

File size: 18.15 KB Download

Insulation material as underlay for roofing membranes: Bowing under the effect of a thermal gradient (NT BUILD 386)

NT BUILD 386

  • The scope of this Nordtest method is to test the bowing of insulation material caused by a thermal gradient through the material.

File size: 38.51 KB Download

Insulation material as underlay for roofing membranes: Exposure to temperature variations (NT BUILD 385)

NT BUILD 385

  • The scope of this Nordtest method is to test the dimensional variation behaviour in the unrestrained state due to temperature variations.

File size: 70.21 KB Download

Floating floors: Structural classification (NT BUILD 384)

NT BUILD 384

  • This Nordtest method deals with a floor type which is designated “floating floor” and is defined in clause 2. The method specifies a static and alternating load (wheel load) test.

File size: 19.12 KB Download

Building gaskets: Tear resistance (NT BUILD 382)

NT BUILD 382

  • This test method has been specially developed to study the risk of tear propagation in gaskets fastened to a wooden substrate with staples or similar.

File size: 70.11 KB Download

Concrete, hardened: Air void structure and air content (NT BUILD 381)

NT BUILD 381

  • The method can be applied to determine the air content and air void structure in hardened concrete. The air void structure is described by means of the parameters, air void content, specific surface and spacing factor. Two methods are described in the standard, the linear traverse method and the modified point count method. The measurements can be performed on either face ground specimens or thin sections.

File size: 139.74 KB Download

Timber in structural sizes: Determination of shear strength and shear modulus parallel to the grain (NT BUILD 378)

NT BUILD 378

  • This NORDTEST method specifies a procedure for determining shear strength and shear modulus parallel to the grain of glued, laminated timber or solid timber in structural sizes. The method has been developed for testing Nordic pine and spruce but can also be used on other species.

File size: 61.66 KB Download

Protective paint coatings on steel: Accelerated corrosion test in high humidity air containing small amounts of sulphur dioxide (NT BUILD 377)

NT BUILD 377

  • This method specifies the test equipment, preparation of test specimens and the procedure for accelerated corrosion tests on protective paint coatings on steel. The corrosion test is conducted in an artificial atmosphere of air containing 1 ppm sulphur dioxide. Exposure takes place at a constant relative humidity of 95 % and at a constant temperature of 23 ºC.

File size: 23.78 KB Download

Insulation material, underlay for roofing membranes: Resistance to deformation at elevated temperature (NT BUILD 375)

NT BUILD 375

  • The scope of this NORDTEST method is testing at elevated temperature the deformation of insulation material used as underlay for roofing membranes.

File size: 116.25 KB Download

Timber in structural sizes: Strength and modulus of elasticity in compression perpendicular to the grain (NT BUILD 374)

NT BUILD 374

  • This NORDTEST method specifies a procedure for determining the strength and modulus of elasticity in compression perpendicular to the grain of glued laminated timber and solid timber in structural sizes. The method has been developed for testing Nordic pine and spruce but can also be used on other species.

File size: 170.25 KB Download

Timber in structural sizes: Strength and modulus of elasticity in tension perpendicular to the grain (NT BUILD 373)

NT BUILD 373

  • This NORDTEST method specifies a procedure for determining the strength and modulus of elasticity in tension perpendicular to the grain of glued laminated timber and solid timber in structural sizes. The method has been developed for testing Nordic pine and spruce, but can also be used on other species.

File size: 64.31 KB Download

Surface coating, cement mortar: Anti-carbonation effect (NT BUILD 372)

NT BUILD 372

  • This Nordtest Method specifies a procedure for the determination of the anti-carbonation effect of a surface coating system on concrete (cement mortar).

    The anti-carbonation effect is determined by accelerated comparative testing of coated and uncoated specimens.

File size: 42.49 KB Download

Sealed glazing units: Accelerated ageing (NT BUILD 371)

NT BUILD 371

  • This NORDTEST method specifies a test method for accelerated ageing of sealed glazing units.

File size: 74.73 KB Download

Mortar, hardened: Cementcontentandaggregate-binder ratio (NT BUILD 370)

NT BUILD 370

  • This NORDTEST method can be applied to estimate the cement content of the binder and the content of binder in hardened mortar, using microscopic investigation of thin sections.

File size: 40.52 KB Download

Concrete, repair materials: Water diffusion (NT BUILD 369)

NT BUILD 369

  • The water diffusion coefficient of concrete repair materials and protecting coatings is determined by a laboratory test in which transfer of water occurs under the influence of differences in relative humidity. The diffusion coefficient is calculated on the basis of the loss of weight from a diffusion cell.

File size: 37.94 KB Download

Concrete, repair materials: Capillary absorption (NT BUILD 368)

NT BUILD 368

  • This method describes a laboratory test procedure to determine capillary water absorption of concrete repair mortars and protective coatings, based on weight recording. The absorbed amount of water is expressed as a function of the square root of time.

File size: 21.05 KB Download

Concrete, repair materials: Coefficient of thermal expansion (NT BUILD 367)

NT BUILD 367

  • This paper describes a laboratory procedure for determining the coefficient of thermal expansion of concrete repair mortars. The specimens are exposed to temperatures ranging from +5 ºC to +60 ºC. For each change of temperature, the longitudinal expansion is recorded.

File size: 44.74 KB Download

Concrete, repair materials and protective coating: Shrinkage and swelling (NT BUILD 366)

NT BUILD 366

  • The method describes a test for measuring the shrinkage or swelling of repair mortars during the hardening period and the subsequent desiccation period.

File size: 27.65 KB Download

Concrete, repair materials and protective coating: bond strenght, direct pull-off test (NT BUILD 365)

NT BUILD 365

  • The method describes a test for determination of the bond strength of a construction consisting of a standard concrete substructure on which a repair mortar or a repair system has been cast.

File size: 17.71 KB Download

Shotcrete: Frost resistance (NT BUILD 364)

NT BUILD 364

  • This method describes a means of determining the resistance of shotcrete to repeated freezing and thawing. Freezing takes place in contact with either a 3 % NaCl solution (method A) or water (method B).

File size: 41.70 KB Download

Concrete surfaces, organic paints: Acid resistance (NT BUILD 363)

NT BUILD 363

  • This test determines the acid resistivity of solvent-based and water-based organic paints on concrete surfaces. The concrete test specimens are coated with the paints to be tested and then stored in sulphuric acid solutions.

File size: 85.00 KB Download

Wood frame walls: Racking test of sheathing materials (NT BUILD 362)

NT BUILD 362

  • The purpose of this test method is to determine the ability of sheathing materials on wood frame walls to resist racking loads. The test is conducted with a standard wood frame wall, and the test objective is the loadbearing performance of the sheathing material and its fastening to the frame.

File size: 53.32 KB Download

Concrete, hardened: Water-cement ratio (NT BUILD 361 - Edition 2)

NT BUILD 361

  • This NORDTEST method can be applied to estimate the water-cement ratio (W/C ratio) in hardened concrete, using microscopic investigation of thin sections. The method includes two impregnation techniques, vacuum impregnation with fluorescent epoxy and impregnation using the Fluorescent Liquid Replacement (FLR) technique. The latter technique supplements the epoxy impregnation at lower W/C-ratios. FLR technique is not applicable above W/C = 0.50.

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Nordtest

Nordtest is a trademark of Nordic cooperation in conformity assessment. The emphasis of Nordtest is to develop, promote and innovate Nordic test methods and pre-normative activity. Nordtest endeavours to remove technical barriers to trade and promotes the concept: “Approved once, accepted everywhere”.