To explore the strength development characteristics and engineering performance of different coal-based solid waste filling materials cemented into body, coal gangue was used as coarse material, fly ash, desulfurization gypsum, gasification slag, furnace bottom slag fine cement a gelling agent. The uniaxial compressive (UCS) bleeding rate backfill (CBSWCB) were tested by an orthogonal experimen...

Knowledge of the physical properties rock masses is fundamental for economics and safety mining projects. The determination these in samples laboratory requires time, expensive equipment qualified personnel, which considerably increases information's cost. Indirect methods were developed to obtain related masses, have been shown be a viable alternative traditional procedures. compressional mech...

Various geological processes (mineral composition, structure, tectonics, weathering, etc.) affect the physical–mechanical properties of rock. Petrological and engineering characteristics paleoweathered rock (PWR) from K1/J2 contact zone are described in detail via field investigation experimental testing. This PWR exhibits mainly sandy grains mud structures, layered massive strata, calcareous a...

Biocemented Martian regolith simulant (MRS) columns were developed using a microalga, Thraustochytrium striatum. Response surface methodology was used to maximize the unconfined compressive strength (UCS) of biocemented MRS towards particle size, cell biomass loading, and nutrient (CaCl2/urea) loading. Overall, UCS increased with increase loading while medium size achieved highest UCS. But didn...

Abstract The effect of exposure to high temperature on rock strength is a topic interest in many engineering fields. In general, known decrease as increases. most common test used evaluate the uniaxial compressive (UCS). It can only be carried out laboratory and presents some limitations terms number, type preparation samples. Such constrains are more evident case rocks from historical monument...