To study the influence of dehydration conditions on pore structure and mechanical property expansive soil, two experimental with high-temperature drying (temperature 50 °C-humidity 10%) humid 70%) were carried out. Taking remolded soil in province Anhui China as research object, this paper used mercury intrusion porosimetry (MIP) scanning electron microscopy (SEM) to analyze size distribution s...

A-7-6 lateritic soil was treated at British Standard Light (BSL) compaction energy with up to 8% lime content (by dry weight of the soil) at 2% variations and each was admixed with up to 8% rice husk ash (RHA) at 2% variations. Effects of the ash on the soil-lime mixtures were investigated with respect to unconfined compressive strength (UCS) and coefficient of permeability. The UCS of the spec...

In past days many researchers have been worked on the stabilized Black Cotton (BC) soil to determine the Unconfined Compressive Strength (UCS) values in a conventional ways in laboratory thorough experiments, which is time consuming and requires number of persons. So we the authors of this study attempted to determine these values using Artificial Neural Networks (ANN). ANN which are simple mat...

Uniaxial compressive strength (UCS) and the static Young’s modulus (Es) are fundamental parameters for effective design of engineering structures in a rock mass environment. Determining these two laboratory is time-consuming costly, results may be inappropriate if testing process not properly executed. Therefore, most researchers prefer alternative methods to estimate parameters. This work eval...

In this paper, the needle penetrometer test was utilized to explore the reliability of the Needle Penetration Index (NPI) for estimating the Unconfined Compressive Strength (UCS) of sedimentary rocks including gypsum, marl, siltstone and sandstone collected from the Qom Formation. Following the UCS and NP test, regression analyses were carried out to control the predictive performances of NPI. ...

This study proposes a novel approach to surface strain measurement for cylindrical rock specimens subjected uniaxial compression using distributed fibre optic sensing technology. The capability and accuracy of this in measuring the full-field distribution specimen have been verified by series compressive strength (UCS) tests on aluminium alloy, sandstone, granite. By analysing experimental resu...

The evaluation of oil well cement additives is determined by the influence on rheological and mechanical properties slurry. use nanoadditives for cement, such as bacterial nanocellulose (BNC), has been increasing in recent years due to their high tensile strength, Young's modulus, thermal resistance. However, BNC addition not widely studied. purpose this work understand effects caused class G d...

The use of some environmental functional minerals as backfill-modified materials may improve the leaching resistance cemented uranium tailings backfill created from alkali-activated slag (CUTB), but these participate in hydration reaction cementitious materials, which could have a certain impact on pore structure CUTB, thus affecting its mechanical properties and resistance. In this paper, natu...

This paper presents the stabilization potential of Class F pond ash (PA) from a coal fired thermal power station on tropical peat soil. Peat or highly organic soils are well known for their high compressibility, natural moisture content, low shear strength and long-term settlement. This study investigates the effect of different amount (i.e., 5, 10, 15 and 20%) of PA on peat soil, collected fro...

ABSTRACT: The mechanical parameters of constitutive equations for soil and rock can be determined by laboratory experiments in which a cylindrical specimen is commonly tested under uniaxial and triaxial compressive conditions. The distribution of stress in the specimen during the tests must be kept uniform and homogeneous. In this paper, numerical simulations are carried out to determine the di...