Machine learning for prediction of the uniaxial compressive strength

The Uniaxial Compressive Strength (UCS) is an essential parameter in various fields (e.g., civil engineering, geotechnical engineering, mechanical engineering, and material sciences). Indeed, the determination of UCS in carbonate rocks allows evaluation of its economic value. The relationship between UCS and numerous physical …

Standard Test Methods for Compressive Strength and …

5.2 Method C, uniaxial compressive strength of rock is used in many design formulas and is sometimes used as an index property to select the appropriate excavation technique. Deformation and strength of rock are known to be functions of confining pressure. Method A, triaxial compression test, is commonly used to simulate the stress …

(PDF) Strength of Laterite Rock Concrete

The compressive strength (19–42 MPa) of most of the laterite concrete is comparable with the average strength (45 MPa) of concrete made with the usual granite crushed rock aggregates from the ...

Uniaxial Compressive Strength Determination of Rocks Using …

The uniaxial compressive strength (UCS) is an important parameter for rock mass classification and rock engineering designs. This study proposes a novel …

Numerical investigation of the dynamic compressive strength of rocks

Experimental data in Fig. 1 b indicate that the compressive strength of rock-like materials increases gradually with strain-rate in the low strain-rate regime (10 −4 –10 1 s −1), but turns to rapid increase in the intermediate (10 1 –10 2 s −1) and high (10 2 –10 4 s −1) strain-rate regimes.For a given rock material, it has been shown that there exists a …

Correlation between Schmidt Hammer Hardness, Strength …

SHRT is one of the most customary non-destructive tests in rock mechanics and inspection activities. The Schmidt hammer was designed initially for concrete hardness testing in 1948 (Schmidt 1951), but due to its ease of use, portability, low cost and non-destructive properties, it has been used in rock mechanics and Geo-morphological …

Compressive Strength of Concrete -Cube Test [PDF], …

The compressive strength of the concrete cube test provides an idea about all the characteristics of concrete. By this single test one judge that whether Concreting has been done properly or not. Concrete compressive strength for general construction varies from 15 MPa (2200 psi) to 30 MPa (4400 psi) and higher in commercial and industrial ...

Uniaxial Strength

The uniaxial strength, also known as the unconfined compressive strength, of a rock may be regarded as the highest stress that a rock specimen can carry when a unidirectional stress is applied, normally in an axial direction to the ends of a cylindrical specimen.It represents the maximum load supported by a specimen during the test …

Testing and numerical simulation of a medium strength rock …

An advanced material model, called the Karagozian and Case Concrete (KCC) model, is implemented in the numerical simulations. ... Evaluation of simple methods for assessing the uniaxial compressive strength of rock. International Journal of Rock Mechanics and Mining Sciences, 38 (7) (2001), pp. 981-994. View in Scopus Google …

STRENGTH PROPERTIES OF ROCKS AND ROCK MASSES

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Unconfined Compression Test

Standard Test Methods for Compressive Strength and Elastic …

1.1 These four test methods cover the determination of the strength of intact rock core specimens in uniaxial and triaxial compression. Methods A and B determine …

Estimating the unconfined compressive strength of intact rocks …

In order to utilize the Equotip hardness tester, originally developed in the field of metallic engineering, as an indirect method to predict the unconfined compressive strength (UCS) of rock, laboratory tests were undertaken to establish the UCS, Equotip hardness (L-value) and porosity of nine rock types. Using existing data from Verwaal …

A Neuro-Genetic Network for Predicting Uniaxial Compressive Strength of

Uniaxial compressive strength of rocks is a competent parameter for designing surface and underground rock structures ... of petrographic characteristics (e.g. grain size, grain shape, type and amount of cement, and packing density) on compressive strength of concrete and rocks (Ulusay et al. 1994; Hale and Shakoor, 2003).

Prediction of Compressive Strength of Concrete and Rock …

The standard k-nearest neighbors (k-NN) with cross-validation were utilized to develop compressive strength prediction models for some concretes and rocks by …

Concrete compressive strength using artificial neural …

ANNs have been systematically used for predicting the compressive strength of concrete, utilizing both the ultrasonic pulse velocity and the Schmidt rebound hammer experimental results, which are available in the literature. ... Jahed Armaghani D, Hajihassani M, Mohd Amin MF (2015) Prediction of uniaxial compressive strength of …

Test Method for Unconfined Compressive Strength of …

method for compressive strength of cylindrical concrete specimens . CS1:2010 Construction Standard Testing concrete . Current - ASTM D2938-95 Standard test method for unconfined compressive strength of intact rock core specimen . Replaced . ASTM D7012-14 Standard test method for compressive strength and elastic moduli of intact …

The unconfined compressive strength estimation of rocks …

The unconfined compressive strength (UCS) of rocks is a crucial factor in geotechnical engineering, assuming a central role in various civil engineering …

Minerals | Free Full-Text | Assessment of Machine Learning

The prediction of rate-dependent compressive strength of rocks in dynamic compression experiments is still a notable challenge. Four machine learning models were introduced and employed on a dataset of 164 experiments to achieve an accurate prediction of the rate-dependent compressive strength of rocks. Then, the relative importance of …

Effect of heat-treatment on the dynamic compressive strength of Longyou

The split Hopkinson pressure bar (SHPB) system was used to conduct dynamic uniaxial compressive strength (UCS) tests of rocks, following the recent International Society of Rock Mechanics suggested method for dynamic rock tests (Zhou et al., 2012).The SHPB system consists of a striker bar (200 mm in length), an incident bar …

Compressive strength of rocks

Estimating compressive strength. General rock failure criterion can be reduced to a few parameters dependent on lithology (m) and the uniaxial compressive strength (C 0).Lithology is commonly …

The unconfined compressive strength estimation of rocks …

The unconfined compressive strength (UCS) of rocks is a crucial factor in geotechnical engineering, assuming a central role in various civil engineering undertakings, including tunnel construction, mining operations, and the design of foundations. The precision in forecasting UCS holds paramount importance in upholding the security and …

Uniaxial Compressive Strength

Uniaxial compressive strength (UCS) is a key physical test relevant to iron ore crusher design and rock geomechanics for mining. Tests are typically performed on intact …

Comprehensive study on the Python-based regression …

The strength of rock under uniaxial compression, commonly known as Uniaxial Compressive Strength (UCS), plays a crucial role in various geomechanical applications such as designing foundations ...

Predicting uniaxial compressive strength, modulus of …

The Schmidt hammer test is a non-destructive method which can be used in both laboratory and field to provide a quick and relatively inexpensive measure of rock hardness. The study investigated the relationship between the Schmidt hardness and modulus of elasticity, uniaxial compressive strength and index properties of nine types …

Hammer Schmidt: A Guide to Concrete Testing [Updated 2024]

When it comes to evaluating concrete strength and integrity, the Hammer Schmidt or Schmidt hammer is an essential instrument. Our guide dives directly into the various types of Schmidt rebound hammers used, their applications, and the methodology behind the Rebound Hammer Test, providing insights and practical tips for professionals …

Machine learning prediction of compressive strength of concrete …

The resistivity of concrete is highly sensitive to the early age, especially for the first 24 h, which is mainly due to the high content of pore solution and the concrete is in the transition stage of condensation and hardening [51], [52].Therefore, compared with the traditional concrete strength prediction model, which takes curing age as an input …

Prediction of Uniaxial Compressive Strength of Rocks from …

Rock engineering tasks like tunnelling, dam and building construction, and rock slope stability rely heavily on properly estimating the rock's uniaxial compressive strength (UCS), a crucial rock geomechanical characteristic. As high-quality specimen are not always possible, scientists often estimate UCS indirectly. The primary objective of …

The effect of length to diameter ratio of test specimens on …

One of the parameters which affect the uniaxial compressive strength (UCS) of rock materials is the length to diameter ratio (L/D) of test cores. ASTM recommends a ratio of between 2 and 2.5, and ISRM suggests 2.5–3:1. Research has shown that high UCS values are obtained for L/D ratios <2, a very slight difference in …

How to Choose the Right Mortar Mix Type: N, O, S, or M

Type S mortar mix offers high compressive strength of over 1,800 psi and high-tensile bond strength. This makes type S mortar mix suitable for many projects at or below grade. Type S mortar mix is a load-bearing mix that can withstand pressure from the structure that it is bearing, as well as pressure from soil, wind, and seismic loads.