Correlation of Mechanical Properties of Some Rocks in South-Eastern Nigeria , point load strength test, impact strength index test and natural density test The results were correlated by using correlation coefficient and regression analys The equation of the best-fit line, and the correlation , (UCS) test and also cheap and easy to use ....

The Point-load Test measures the Point Load Strength Index (Is(50)) of rock specimens, and their Strength Anisotropy Index (Ia(50)), which is the ratio of Point Load Strengths in directions that give the greatest and least valu...

Overall determining the strength of a rock through point load test yields the important values such as UCS which was over 250Mpa and Is of 1054MPa highlighting that the rock is extremely strong and combined with the visual inspection of grey coarse grained ,...

Laboratory investigation Diametrical point load tests (PLTs) and UCS tests were performed on saturated as well as dry sampl In order to correctly compare the PLT results with the UCS results, the core samples were collected from the same depth at each site...

point load test apparatus The test is of , Predicting the compressive and tensile strength of rocks from indentation hardness index by S Kahraman*, M Fener , Predicting the compressive and tensile strength of rocks from indentation hardness index T r a n s a c t i o n P a p e r...

[9] performed the point load test on large specimens and revised the size correlation chart commonly used to reference point load values from cores with differing diameters to the standard size of 50 mm the compressive strength is 20-25 times Is they found the ratio of UCS to Is(50) to be approximately 29...

The Point Load Index and Unconfined Compressive Strength Data Base System (PLUCS) was designed to store, retrieve, and compare rock test data This technical note describes the PLUCS and gives its availability to the field...

Unconfined Compressive Strength (UCS) is a quick and simple test to determine the undrained shear strength of cohesive soils An undisturbed or remolded soil sample is loaded in an unconfined condition at a strain rate of 05 to 2% per minute until failure...

Point Load Digital Point Load Test Apparatus UTR-0580 The UTR-0580 Digital Point Load Test Apparatus consists of a 60 kN capacity load frame with a hydraulic loading ram driven by a hand pump...

The point load test has been considered as a cheap and useful testing method to estimate the strengths of rocks due to its ease of testing, simplicity of ,...

Correlation between Uniaxial Compressive Strength and Point Load Index for Salt-Range Rocks M Akram1 and M Z A Bakar2 1 Mining Engineering Department, University of Engineering & Technology, Lahore, Pakistan , correlations between the UCS test results and the corresponding test ,...

Fener et al25 tried to relate UCS with the Schmidt hammer test, point load test, and impact strength test for 144 samples, but found no good correlations with any of these tests The highest value for the regression coefficient was 077 for UCS versus the point load test The reported UCS...

The Point Load Tester USING THE POINT LOAD TEST TO DETERMINE THE UNIAXIAL COMPRESSIVE STRENGTH OF COAL , suite of point load tests to a single UCS test With such an experimental design, much of the scatter in the results might , USING THE POINT LOAD TEST TO DETERMINE THE UNIAXIAL COMPRESSIVE STRENGTH OF COAL MEASURE ROCK ....

In contrary to the UCS and estimated values of UCS were compared to the the ITS, the Axial Point Load (APL) and the measured values obtained from the running tests Diametral Point Load (DPL) test methods are on samples from 48 different rock types and the simpler and run quickly...

for UCS versus the point load test The reported UCS values ranged between 61 and 202 MPa, with igneous, metamorphic and sedimentary rocks Fener et al, (2005) also evaluated prior relationships for the prediction of UCS, with 20+ correlations regarding UCS and point load...

Point load index test needs less sample preparation, easy to handle and quick test while comparing with uniaxial compressive test Lot of researchers comes out with a lot of correlations between uniaxial compressive strength and point load index for intact rocks , (UCS) takes more time & cost on comparing with point load index [I50] Easy ....

The advantages of the point load test over the UCS test include the relaxation of the tolerances for specimen size and shape as well as the use of a simple portable equipment File Size 1 ...

The Point Load Test, also known as the Point Load Strength Index Test, is used to calculate the rock strength index of a rock specimen From the rock strength index, other rock parameters, such as the uniaxial compressive strength, can be estimated This test is very economical due to the simplicity of the apparatus and the minimal amount of ....

A study was conducted to test and verify the empirical relation between point load strength index (PLI) and uniaxial compressive strength (UCS) for some Indian rocks...

strength (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 use of point load test for Dubai weak calcareous sandstones Amr Farouk Elhakim* Department of Public Works, Faculty of Engineering, Cairo University, Giza, Egypt , and more economical compared to the UCS test 2 The point load test The point load test ,...

The point load test provides a fast and economic method for evaluating the UCS of rock specimens The point load strength index ( I s50 ) is empirically correlated to the UCS There is a plethora of correlations for estimating the UCS from the point load strength index, as summarized in Table 1 ...

Read "Point Load Test on Meta-Sedimentary Rocks and Correlation to UCS and BTS, Rock Mechanics and Rock Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips...

Overall determining the strength of a rock through point load test yields the important values such as UCS which was over 250Mpa and Is of 1054MPa highlighting that the rock is extremely strong and combined with the visual inspection of grey coarse grained ,...

The Point Load Index can be used to simultaneously characterise rock for blastability and comminution process In a Point Load Test, a sample of rock is mounted between two pointed plates and pressure is applied until failure of the sample occurs...

point-load test asareplacement for the uniaxial compression test and gave the following comparison of thetwo tests Advantages ofthepoint-load test 1 Smaller forces are needed, and a small and portable testing ma-chine canbeused 2 Specimens in the form of core...

relation between point load index and UCS could be presented through three different models The first linear model is shown in Figure 1; , The ASTM-D573 1-08 [8] code gave a clear justification for the use of the point load test The code started its ...

As core samples for the uniaxial compression test are not always easily obtained, indirect tests such as the point load test can be a useful alternative, and various equations between the UCS and the point load strength index(Is50) have been reported in the literature...

Experimental Study of Size Effects of Rock On UCS And Point Load Tests Authors H Masoumi (School of , A number of studies have investigated the size effect of intact rock mostly focusing on the uniaxial compression test The most widely used being that by Hoek and Brown [1] The authors have conducted a suite of uniaxial compressive and ....

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, ,...