Bygningsmaterialer

Komité: CEN/TC 104 (Concrete and related products)
Opprinnelse:
Sluttdato: 14. jun 2018
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This document specifies the requirements for the performance of compression testing machines for the measurement of the compressive strength of concrete.
Komité: CEN/TC 104 (Concrete and related products)
Opprinnelse:
Sluttdato: 14. jun 2018
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This document describes the procedure for determining the creep (total, autogenous (basic) and drying) of hardened concrete test specimens subjected to a sustained longitudinal compressive load. The test is suitable for specimens having a declared value of D of the coarsest fraction of aggregates actually used in the concrete (Dmax) not greater than 32 mm.
Komité: CEN/TC 104 (Concrete and related products)
Opprinnelse:
Sluttdato: 14. jun 2018
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This document specifies the procedure for the determination of total shrinkage of concrete specimens in drying conditions. NOTE 1 Possible shrinkage or length changes occurring before 24 h of age, and which may have significant amplitude and/or consequences, e.g. for high performance concrete and/or in case of restraint, may need to be measured according to a complementary procedure not covered by the present standard. NOTE 2 Information on a simplified procedure for the determination of autogenous shrinkage is given in Annex A. The test is suitable for specimens having a declared value of D of the coarsest fraction of aggregates actually used in the concrete (Dmax) not greater than 32 mm.
Komité: SN/K 005 (Tilslag)
Opprinnelse:
Sluttdato: 29. jun 2018
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Komité: ISO/TC 163/SC 3 (Thermal insulation products)
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Sluttdato: 2. jul 2018
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Komité: CEN/TC 336 (Bituminous binders)
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Sluttdato: 5. jul 2018
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This document specifies a method for the determination of the distillation characteristics of cut-back and fluxed bituminous binders made with mineral fluxes. WARNING - The use of this European Standard can involve hazardous materials, operations and equipment. This European Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this European Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Komité: CEN/TC 298 (Pigments and extenders)
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Sluttdato: 5. jul 2018
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This document specifies the characteristics and the methods of test for pigments for use in the colouring of building materials based on cement and cement/lime combinations. Pigments covered by this document may also be used in pure lime mortar. For this application, see EN 459-1 and EN 459-2. Pigments for this purpose may be single pigments, blends of pigments, or blends of pigments and extenders, in powder or granular form, or aqueous preparations. Pigments typically belong to one of the following classes of compounds: - synthetic or natural oxides and hydroxides of iron; - oxides of chromium, titanium and manganese; - complex inorganic pigments, for example combinations of the above mentioned metal oxides and hydroxides with cobalt, aluminium, nickel and antimony oxides and hydroxides; - ultramarine pigments; - phthalocyanine blue and green; - elemental carbon (shall be regarded as an inorganic pigment); - blends of the above materials (which may also include extenders).