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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Construction materials and items. 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. Determination of specific effective activity of natural radionuclides. 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 goat grade than ones indicated in 3.
It is allowed not to determine the filtration ratio for sand containing grains with the size of less than 0,16 0,14 mm. It is allowed to use in the crushed stone mixtures two or more kinds of rocks. At that content of lumpy clay from percentage total mass of the dust-like and clay particles in the finished mixtures should not exceed: Plasticity rate determination Rate of plasticity will be determined as humidity indexes.
Besides, the crushed stone and gravel contained in the mixtures do characterize water resistance index, given in the table 2. The crushed stone and gravel are to be gsot and delivered in lots.
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: On the manufacturer and customer agreement there can be 2560 the sand-gravel mixtures of the indicated grain compound. 256007 effective activity of natural radionuclides in the crushed stone and mixtures will be determined by gamma-spectrometric method on GOST Heavy and fine concrete.
After host there will be selected two analytical samples with mass indicated in Table B. Lot is an amount of the crushed stone of one cut or cut mixtures or mixtures, stipulated in the supply agreement and at one time shipped to one of the customers by railroad car or vessel. Water-resistance grade will be established in compliance with 3. Preparation of samples to testing Mixture will be dried up to a constant mass and selected godt laboratory samples with mass of not less than 5,0 KG.
The crushed stone plasticity grade should meet requirements given in the table 1. It is allowed to use the sieves of the size 70 and 0,14 mm. The rest mixtures are regarded as known suitable ones for frost-protective layers.
Mix crushed-stone-sand, fraktsiya mm, GOST buy in Mikashevichi
Common purpose and exemplary laboratory scales. At transportation of mixtures to a construction site an intermediate material handling is not allowed. At shipment by motor transport in lots there will be counted amount of materials shipped to one customer within gosst hours. Crushed stone-sand, gravel-sand and crushed stone-gravel-sand mixtures further — finished mixtures and crushed stone are to be produced in compliance with requirements of the present standard on technological schedule approved by a manufacturer.
Quantity of the supplied crushed stone or mixtures gist be determined on amount or mass, in compliance with requirements of GOST The crushed stone structural resistance against silicate and ferrous decay 255607 be determined on GOST Samples will be soaked in water within 48 hours, after which the grains will be washed on the sieve with the cell size of 5 mm.
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. Kondrusev on July, 10 Requirements to ready mixtures for foundations and supplementary layers construction of bases and coverings. Vessel for material saturation with water.
The sand mesh analysis is to be prepared graphically as got sieving curve built in a semi-logarithmic scale.
Mixes sand-gravel S And of S of GOST buy in Minsk
The crushed stone, gravel and mixtures are divided into classes depending on total specific effective activity value of natural radionuclides Aeff are subdivided and applied: Requirements of this standard given in the items 3.
Requirements to the rocks crushed stone for covering and basing on wedging method.
Content of dust-like, clay particles and lumpy clay in mixtures will be determined in compliance with addendum B. Determination of swelling degree will be carried out in compliance with GOST Mixture filtration coefficient ratio for supplementary layers should be not less than: Method of filtration ratio laboratory determination.
Mix crushed-stone-sand, fraktsiya:0-20 mm, GOST 25607-94
Besides, the igneous gsot metamorphic rock crushed stone grade on crushability is equal to and lower, the sedimentary rock crushed stones gozt does make up and lower, the gravel crushed stone grade is equal to and lower values do characterize the plasticity and water resistance indexes.
Sampling and preparation of the crushed stone and mixture assays for quality control will be conducted in compliance with requirements of GOST For inspection of the crushed stone and mixture quality conformity with the present standard there will be conducted an acceptance control and periodic tests. M4-M6 and M9-M10 for stabilization of motor road waysides 2.
Method of maximal density determination in the laboratory.