Improvement and stabilization of soils are widely used to improve the physical and mechanical properties of sandy soils. Despite the abundance of researchers that have been conducted on this topic to date, most of them have focused on dry soil. The effects of the existing water in the soil and different curing durations (curing environment) have not been investigated. In this study, different p...

Original scientific paper To analyse the influence of joint angle, number and spacing on the strength and acoustic emission (AE) characteristics of rock mass, the uniaxial compression model of rock specimens was established using the micro particle flow PFC2D software platform. The intact rock parameters were determined via trial and error, joints with different angles, numbers and spacing were...

pits, quarries, and on construction sites. The prediction of the penetration rate of drilling machines is very important for cost estimation and planning of rock excavation projects. Many researchers have investigated percussive drilling theoretically or experimentally and correlated the penetration rate with various rock properties. Protodyakonov (1962) developed drop tests and described the c...

It is of great significance to study the effect solid contents (SC), binder-to-tailings (b/t) ratio, types and dosage fly ash (FA) on viscosity (V) uniaxial compressive strength (UCS) backfill. can improve filling efficiency reduce costs understand relationship between SC, b/t FA viscosity, UCS Consequently, this paper carried out compression tests rheological five different backfill specimens....

Abstract Uniaxial Compressive Strength (UCS) is a key indicator of the mechanical properties rock, particularly in diagnostic and restoration phases when stones are employed as construction material. In historical buildings, it important to determine UCS values without utilizing tests that involve destructive rock sampling. To estimate UCS, non-destructive techniques, such ultrasonic pulse velo...

The effect of an electric field on the bending behavior of [001] oriented and poled relaxor Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 (PIN–PMN–PT) single crystals was measured using a four point bending apparatus with a longitudinal electric field applied to the bar during bending. The surface finish and electric field amplitude were observed to affect the bending strength. Polished surfaces imp...

Lime stabilization is one of the techniques that can be used for improving the engineering properties, particularly the strength, of soft clays. This paper aims to investigate the effect of hydrated lime on the strength and microstructure of lime treated clays. In order to illustrate such effect, a series of laboratory tests were conducted. Atterberg limits, compaction tests, unconfined compres...

Due to economical and environmental issues, utilization of mineral wastes, e.g. iron ore mine tailing (IOMT), as road materials can be recommended as a sustainable alternative. In the present study, mechanical properties, as well as resistance to freezing and thawing cycles (F-T) of low plasticity clay soil stabilized with different percentages of Portland cement (0, 6, 9, 12 and 15%) and diffe...

The uniaxial compressive strength (UCS) is classified as one of the basic mechanical properties rocks, which widely used in mining and construction practice. For example, it allows geomechanics to classify individual rocks soils into groups with same or similar properties. An example (RMR) Rock Mass Rating, Barton’s Q system. [1,2]. As a rule, only an indicative determination sufficient for thi...

Cemented paste backfill (CPB) is a sustainable mining technology that widely used in mines and helps to improve the mine environment. To investigate relationship between aggregate grading different affecting factors uniaxial compressive strength (UCS) of cemented (CPB), Talbol gradation theory neural networks evaluate determine optimum ratio. The mixed ratio with least amount cement (waste ston...