Gost 1. GOST Rock products used for crushed stone and gravel road bases and surfacing. Specifications ГОСТ Crushed stone, gravel, and sand mixes for road and airfield surfaces and beds. Specifications Смеси щебеночно-гравийно-песчаные для покрытий и. GOST 94, Russian GOST Standards In English.
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At shipment to a customer each batch of the crushed stone and mixtures will be accompanied by documents on quality, in which there will be specified: At that determinations of contained in the mixtures crushed stone and sand will be carried out separately.
Mix crushed-stone-sand, fraktsiya:0-20 mm, GOST 25607-94
Determination of water-resistance 4. Sedimentary rock crushed stone crushability mark grade should not be lower than The crushed stone plasticity grade should meet requirements given in the table 1. Mixtures filtration ration will be determined in compliance with method 5 of addendum B.
Method of determination of dust-like and clay particles in mixtures. The crushed stone and gravel will be stored separately, on cut and mixtures — on numbers, guarding against its mixing and contamination. Method of determination of a lumpy clay content in mixtures Content of lumpy clay will be determined by particle analytical sample selection, differing on viscosity. Mixture grain compound will be determined on GOST by sizing of dried up to fixed 5. This standard is also applied to aggregates for heavy and fine concrete, fillers for asphalt mixtures, to finished mixtures for bases and coverings treated with non-organic and organic binding materials.
Common purpose and exemplary laboratory scales. M1 and M2 — for basing at availability of proper technical-economical assessment; M3 — M11 for supplementary layers of bases. Sampling and preparation of the crushed stone and mixture assays for quality control will be conducted in compliance with requirements of GOST Table 1 Plasticity grade Pl1 Pl 2 Pl 3 Plasticity index Up to1 inclusively More than 1 to 5 More than 5 to 7 The crushed stone of higher crushability grade than ones indicated in 3.
The samples will be placed into split forms and densified by layer tamping method up to maximal density at optimum moisture content, in compliance with GOST At acceptance control of the crushed stone and mixtures there will be established: Water-resistance grade will be established in compliance with 3.
Methods of laboratory determination of physical properties. On the manufacturer and customer agreement there can be used the sand-gravel mixtures of the indicated grain compound. For its adoption voted: Content of dust-like and clay particles with size of less than 0,05 mm. Belonging to the mixture compound.
Requested with this document
256007 shipment by motor transport in lots there will be counted amount gosy materials shipped to one customer within 24 hours. Heavy and fine concrete. The crushed stone structural resistance against silicate and ferrous decay will be determined on GOST Besides, the igneous and metamorphic rock crushed stone grade on crushability is equal to and lower, the sedimentary rock crushed stones grade does make up and lower, the gravel crushed stone grade is equal to and lower values 256077 characterize the plasticity and water resistance indexes.
Swelling degree gpst characterized by relative deformation of the mixture frost swelling, which should make up not less than 0, Determination of the mixtures filtration ratio 5.
For inspection of the crushed stone and mixture quality conformity with the present standard there will be conducted an acceptance control and periodic tests.
The rest mixtures are regarded as known suitable ones for frost-protective layers. The crushed stone on its grain ogst, solidity, frost-resistance, content of laminar hearth and prickly form grains, dust-like and clay particles content, lumpy clay and content of the crushed grains in the gravel crushed stone, structural decay resistance of the crushed stone is to meet requirements of GOST Besides, the crushed stone and gravel contained in the mixtures do characterize water resistance index, given in the table 2.
It is allowed to supplement lack of particles with the size of less than 0,05 mm.
RG24 GOST R TR CU, Import export regulations in English
The crushed stone grade on water-resistance should meet requirements given in the table 2. At control check of the crushed stone and mixture quality the Customer is to apply order of sampling from hauling units, stipulated in GOST Method essence Content of dust-like and clay particles particles with size of less than 0,05 mm.
At that content of lumpy clay from percentage total mass of the dust-like and clay particles in the finished mixtures should not exceed: Sand for construction works.
Content of dust-like, clay particles and lumpy clay in mixtures will be determined in compliance with addendum B.
It is allowed to use in the crushed stone mixtures two or more kinds of rocks. Method of laboratory determination of swelling degree.