Gost - 25607 93

For frost-protective layers, mixtures must be non-heaving or low-heaving, with a relative frost heave deformation of no more than 0.04.

Specifies the allowable range of particle sizes for various numbered mixture types (e.g., C4, C9). gost 25607 93

Device of road and airfield pavements and bases. For frost-protective layers, mixtures must be non-heaving or