Top information

Test method T229 - Know More

Test method T229 - Unconfined compressive strength of rock core to 50 MPa strength 2 of 3 October 2012 When shearing failure is partly or wholly along either a bedding plane or a ,...

Performance of Core Strangle Test CST on Porous Rocks , - Know More

Apr 19, 2018 0183 32 The Core Strangle Test CST has been proposed in 2009 by author as an index test permitting indirect estimation of the Uniaxial Compressive Strength In this test, load is applied through a circle perpendicular to the core axis as a strangle The mentioned advantage of the experiment is the possibility of testing quite short rock cores on which the UCS experiment cannot be performed In the ....

Suggested Methods for Determining the Uniaxial Compressive , - Know More

Suggested Methods for Determining the Uniaxial Compressive Strength and Deformability of Rock Materials PART 1 SUGGESTED METHOD FOR DETERMINATION OF THE UNIAXIAL COMPRESSIVE STRENGTH OF ROCK MATERIALS 1 SCOPE This method of test is intended to measure the uni- axial compressive strength of a rock sample in the form...

USING THE POINT LOAD TEST TO DETERMINE THE , - Know More

lump The axial and diametral tests are conducted on rock core sampl In the axial test, the core is loaded parallel to the longitudinal axis of the core, and this test is most comparable to a UCS test The point load test allows the determination of the uncorrected point load strength index Is It ,...

Point load test application for estimating compressive , - Know More

POINT LOAD TEST APPLICATION FOR ESTIMATING COMPRESSIVE STRENGTH OF CONCRETE STRUCTURES FROM SMALL CORE , UCS test as stated in JIS A1170 To get an alternative solution with smaller specimen, point load test PLT has been selected which is a simple test and widely accepted in rock materials research, but relatively new in concrete The...

Laboratory Uniaxial compression test - Know More

Sep 28, 2015 0183 32 Laboratory Uniaxial compression test - Rock Mechanics - Granit - Result 160MPa...

Evaluation of Engineering Properties of Rock Using , - Know More

measured through a destructive test whereas the Ultrasonic Pulse Velocity UPV is measured by a non-destructive test The Uniaxial Compressive Strength UCS and tensile strength data can be used to calculate brittleness, which is one of the important engineering properties of rock 3 Furthermore, the brittleness is empirically...

Point Load Test of Half - Know More

The point load test PLT is intended as an index test for rock strength classification or estimations of other strength parameters because it is economical and simple to conduct in the laboratory and in field tests In the literature, calculation procedures for cylinder cores, blocks, or irregular lumps can be found, but no study has researched such procedures for half-cylinder cor This ....

Estimating the Intact Rock Strength of a Rock Mass by , - Know More

ESTIMATING THE INTACT ROCK STRENGTH OF A ROCK MASS BY SIMPLE MEANS , UCS test In, for example, most rock mass classification systems and analytical and numerical calculations intact rock strength is a parameter and is it , the core may include discontinuiti...

THE UNIAXIAL COMPRESSIVE STRENGTH OF SOFT ROCK - Know More

THE UNIAXIAL COMPRESSIVE STRENGTH OF SOFT ROCK D S Agustawijaya Lecturer, Department of Civil Engineering, Faculty of Engineering, Mataram University, Mataram, Indonesia Email agustawijaya telkom ABSTRACT Soft rock is a term that usually refers to a rock material with a uniaxial compressive strength UCS less than 20 MPa...

Estimation of rock block strength - Know More

was to estimate the strength of rock blocks that might be produced during potential cave mining of the rock mass beneath the existing pit A number of UCS tests were conducted on core sam-ples of varying size to quantify the scale effect The results of these tests were then compared to the published relations discussed in the previous section...

Triaxial and Uniaxial Tests Mining SGS - Know More

The test determines the unconfined compressive strength of a rock specimen Drill core specimens with length to diameter ratio greater than 2 1 are cut with a diamond saw to achieve nearly parallel end faces within 177 0025 mm The cylinder is then submitted to UCS measurements within an electronic-servo controlled Material Test System MTS at ....

Laboratory coring machine and bits, Rock mechanics testing , - Know More

32-C0330 with core clamping device 32-C0331 32-C0331 core clamping device Laboratory coring bits General description This machine is specifically used in the laboratory for cutting core samples from hard materials such as rock and concrete...

UNCONFINED COMPRESSIVE STRENGTH OF ROCK SAMPLE IS , - Know More

Aug 11, 2013 0183 32 Reference IS-9143-1979-Method for the determination of unconfined compressive strength of rock materials Objective The objective of this test is to determine unconfined compressive strength of rock This test is primarily done to classify the rock on the basis of strength...

A NEW TESTING METHOD FOR DETERMINATION OF , - Know More

were then conducted and relationships between UCS with I s 50 and CST were empirically explained and discussed in a point of the view of the usefulness of the method developed Performance of indirect estimation of tensile strength of rocks from Core Strangle Test CST , and potential use of Core Strangle Index CSI in rock mass ....

Predicting the compressive and tensile strength of rocks , - Know More

predictability of the UCS and BTS of rocks from the IHI obtained using a point load apparatus For this reason, 46 different rock types, including igneous, metamorphic, and sedimentary rocks were tested in the laboratory The test results were statistically analysed and the UCS and BTS values were correlated with the corresponding IHI valu In...

Rock UCS Using Equotip 550 - Know More

Equotip for Rock UCS The Equotip provides the user with a highly portable, accurate tool to test rock hardness The instantaneous results can be stored and saved on the indicating device Whilst designed and used to determine the hardness of metal a new application in determining the compressive strength rock UCS and logging rock core sample ....

Estimating thestrength ofrock materials - Know More

rock testing submitted tothe Rock Mechanics Division of the CSIR over a period of twenty years A clear modus operandi in the past and the current needs for the property testing of rock material have emerged Table II provides some information compiled during thisresearch This survey has shown that the mining engineer requires mainly two...

Correlation between Uniaxial Compressive Strength and , - Know More

correlations between the UCS test results and the corresponding test results of Is 50 The data was analyzed statistically to determine the degree of correlation and the variability of results 2 Previous Investigations The point load test has been reported as an indirect measure of the compressive or tensile strength of the rock...

Correlations Between Index Properties and Unconfined , - Know More

Correlations Between Index Properties and Unconfined Compressive Strength of Weathered Ocala Limestone Raoaa Farah University of North Florida This Master s Thesis is brought to you for free and open access by the Student Scholarship at UNF Digital Commons It has been accepted for inclusion in UNF Graduate Theses and Dissertations by an authorized...

Prediction of unconfined compressive strength of carbonate , - Know More

The unconfined compressive strength UCS of intact rocks is an important geotechnical parameter for engineering applications Determining UCS using standard laboratory tests is a difficult, expensive and time consuming task This is particularly true for thinly bedded, highly fractured, foliated, highly porous and weak rocks Consequently, prediction models become an attractive alternative ....

Use of the core strangle test for tensile , - Know More

Jul 01, 2010 0183 32 Read Use of the core strangle test for tensile strength estimation and rock mass classification, International Journal of Rock Mechanics and Mining Sciences on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at ,...

Epslog The Scratch Test - Know More

The Scratch Test is the corner stone of the data acquisition and analysis integrated service proposed by Epslog It is designed as the first step in comprehensive core analysis programs, yielding a continuous high-resolution profile of rock strength, equivalent to a series of Uniaxial Compressive Strength valuThe rock strength is obtained from the analysis of several successive scratch ....

Standard Test Method for Unconfined Compressive , - Know More

Standard Test Method for Unconfined Compressive Strength of Intact Rock Core Specimens1 This standard is issued under the fixed designation D 2938 the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision...

Determination of uniaxial compressive strength of , - Know More

The uniaxial compressive strength UCS of intact rock is an important mechanical parameter which is required for many engineering projects In some engineering projects such as well drilling for petroleum production, due to the depth of the well, there are some limitations for obtaining rock core samples and determining the UCS...

Core Laboratories Core - Know More

High resolution logs with multiple rock mechanical parameters V p, V s, E d, UCS, BH Non-destructive strength profile versus depth Brinell Hardness Test The Brinell hardness test is performed by applying measured load to a spherical steel-ball indenter that is in contact with the sample...

Unconfined Compressive Strength Test of Rock - Know More

This test method specifies the apparatus, instrumentation, and procedures for determining unconfined compressive strength of intact rock core specimens This procedure is identical to ASTM D 2938 except that the cores are tested after cutting without grinding, and neoprene caps are used on ,...

Unconfined Compression Test Geoengineerorg - Know More

The Unconfined Compression Test is a laboratory test used to derive the Unconfirmed Compressive Strength UCS of a rock specimen Unconfirmed Compressive Strength UCS stands for the maximum axial compressive stress that a specimen can bear under zero confining stress...

Comparison of UCS to Bond Work Indices - Know More

Comparison of UCS to Bond Work Indices Alex Doll, Alex G Doll Consulting Ltd, Edmonton, Canada Derek Barratt, DJB Consultants Inc, North Vancouver, Canada Ken Wood, Fluor Mining Minerals, Vancouver, Canada Abstract Unconfined Compressive Strength UCS is a commonly used rockmass strength measurement used by...

Use of the core strangle test for determining strength , - Know More

The core strangle test was intended by Yilmaz as an index test for the strength classification of rock materials, and for determination of unconfined compressive strength The test measures the Core Strangle Index CSI of rock samples in the form of core having a length of 25 mm or more, and rock samples are broken by the load applied through ....

No.416 Jianye Road, South Jinqiao Area,Pudong New Area, Shanghai, China.

Telephone : +86-21-58386189, 58386176

FAX : +86-21-58385681