Items tagged with TEST METHOD Files

File size: 116.60 KB Download

Aggregates: Size distribution (NT BUILD 486)

NT BUILD 486

  • The method can be applied to determine the size distribution of aggregates in different materials such as hardened mortars and concrete. The maximum aggregate size which can be measured depends on the size of the measured image.

    The measurements can be performed using thin sections or other specimens where the aggregates can be distinguished from the background.

File size: 1.88 MB Download

Test for thermal and weathering properties of aggregates: Determination of resistance to freezing and thawing with/without salt (NT BUILD 485 - Edition 2)

NT BUILD 485

  • The revision and combination of the standards NT BUILD 485 and EN 1367-1 has led to some fundamental alterations.

File size: 161.18 KB Download

Building materials: Retention curve and pore size distribution (NT BUILD 481)

NT BUILD 481

  • This test method covers the determination of the retention curve and the pore size distribution of porous building materials and soils using a combination of pressure plate, pressure membrane and/or sand box apparatuses.

File size: 102.42 KB Download

Cement: Heat of hydration (NT BUILD 480)

NT BUILD 480

  • This method is used to determine the heat of hydration of cement in mortar, during the hardening process. The test procedure is identical to NT Build 388 and gives a specification regarding the mix proportion of the tested mortar. The heat developed is described as the amount of energy produced for different maturity ages of the mortar. To be able to define the heat development as energy per mass unit of cement, it is necessary to know the heat capacity of the components in the mortar.

File size: 30.49 KB Download

Natural building stones: Coefficient of thermal expansion (NT BUILD 479)

NT BUILD 479

  • This method describes a laboratory procedure for determining the coefficient of thermal expansion of natural building stones. The test samples are exposed to temperatures ranging from 20 °C to 70 C°. For each change of temperature, the longitudinal expansion is recorded.

File size: 85.99 KB Download

Natural building elements: Shear strength of connections (NT BUILD 478)

NT BUILD 478

  • The scope of this test method is to determine the shear strength of the fixing media between natural stone slabs and other substrate materials.

File size: 65.62 KB Download

Concrete, hardened: Accelerated chloride penetration (NT BUILD 443)

NT BUILD 443

  • This Nordtest method specifies a procedure for the determination of penetration parameters for estimating the resistance against chloride penetration into hardened concrete or other cement-based materials.

    The resistance against chloride penetration is determined by accelerated testing.

File size: 74.85 KB Download

Roof sarking: Impact resistance (NT BUILD 431)

NT BUILD 431

  • This Nordtest method specifies a test procedure for determining the soft body impact resistance of sarking or nonloadbearing roof underlay on timber rafters.

File size: 18.13 KB Download

Concrete and mortar, polymer cement (pcc): Consistency (NT BUILD 429)

NT BUILD 429

  • This method is a recommendation for the appropriate laboratory test method for consistency of polymer cement concretes and mortars (PCC) to be used as a simple quantitative statement of behaviour under particular circumstances.

File size: 16.71 KB Download

Concrete and mortar, polymer cement (pcc): Moulded test specimens - curing (NT BUILD 428)

NT BUILD 428

  • This method is intended for the making and curing of cast test specimens made from polymer cement concrete and mortar (PCC) containing polymer latex.

    The method describes the optimum curing and storage conditions of PCC specimens. The initial wetting period is necessary to ensure satisfactory cement hydration, while the late dry period is needed to give the optimum binding conditions for the latex.

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: 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: 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: 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: 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: 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”.