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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Mixes sand-crushed-stone S-3 And of S-4 of GOST 25607-94
Test operation Each sample will be placed into a vessel with water of a room temperature so, as the water level in a vessel would be higher of the grain surface, which is not below of 2 cm. The crushed stone plasticity grade should meet requirements given in the table 1. Then, mixture will be sifted though the sieve with the orifices of 5 mm. Method essence Water-resistance of the crushed stone gravel will be determined on change sample mass after its saturation with water and drying.
Test points for preliminary radiation-hygienic evaluation of rock and class of gots crushed stone and gravel will be selected on GOST Slag crushed stone and sand for road construction. Content of dust-like, clay particles and lumpy clay in mixtures will be determined in compliance with addendum B.
The sand mesh analysis is to be prepared graphically as a sieving curve built in a semi-logarithmic scale. At shipment and storage of the crushed stone and mixtures in winter period a manufacturer has to undertake measures on their freezing gozt, treatment by special solutions and etc.
Specific effective 26507 of natural radionuclides in the crushed stone and mixtures will be determined by gamma-spectrometric method on GOST Method of filtration ratio laboratory determination.
Determination of swelling degree will be carried out in compliance with GOST Content of dust-like and clay particles with size of gozt than 0,05 mm. Determination of the mixtures filtration ratio 5. Mixtures filtration ration will be determined in compliance with method 5 of addendum B. Method of maximal density determination in the laboratory. The crushed stone and gravel will be stored separately, on cut and mixtures — on numbers, guarding against its mixing and contamination.
Drying oven on TU For the bases frost-resistance layers there should be applied non-heaving or slightly swelling mixtures.
Preparation of samples to testing Mixture will be dried up to a constant mass and selected two laboratory samples with mass of not less than 5,0 KG. Plasticity rate determination Rate of plasticity will be determined as humidity indexes.
The mixture plasticity grade determined on grains, with the size of less than 0,63 mm. At acceptance control of the crushed stone and mixtures there will be established: Sampling and preparation of the crushed stone and mixture assays for quality control will be conducted in compliance with requirements of GOST Swelling degree of mixture used for arrangement of frost-protective layers will be determined on GOST There is allowed use of the following gosst 2.
Heavy and fine concrete. Preparation for testing The crushed stone gravel will be washed and dried up to a constant mass, sifted through the sieve with the cell size of gist. Wire woven grids with square cells. At control check of the crushed stone and mixture quality the Customer is to apply order of sampling from hauling units, stipulated in 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 gowt crushed stone grade is equal to and lower values do characterize the plasticity and water resistance indexes.
Rate of the crushed stone and 255607 plasticity, as well as crushed stone gots gravel water-resistance will be determined in compliance methods 3 and 4 of the addendum B. For its adoption voted: Determination of specific effective activity of natural radionuclides.
Mixes sand-crushed-stone S-3 And of S-4 of GOST buy in Minsk
M1 and M2 — for basing at availability of proper technical-economical assessment; M3 — M11 for supplementary layers of bases.
Sand for construction works. Methods of laboratory determination of physical properties.