WebThe portable point load tester provides an index for the strength classification of hard rocks and allows for a quick, non-expensive on-site evaluation of hard rock strength. A sample of rock is mounted between … WebJan 4, 2024 · Standard Test Method for Determination of the Point Load Strength Index of Rock and Application to Rock Strength Classifications Significance and Use 5.1 The …
Point load test (PLT) - types and principles of testing
WebMar 20, 2024 · The test involves applying a compressive load to a cylindrical or prismatic rock sample until it fractures. Point load test: The point load test is a quick and simple method to estimate the rock strength. The test involves applying a point load to a rock sample and measuring the load required to cause failure. WebThe point load index test involves loading cylindrical, block or irregular rock samples between two conicalplatens until sample failure. The point load strength index (Is) determined using failure lo cost base method selling stock
INTERDEPENDENCE BETWEEN POINT LOAD INDEX ... - Semantic …
Point Load (PL) is a test that aims at characterizing rock materials in terms of strength. It is an index test, meaning that it can be performed relatively quickly and without the necessity of sophisticated equipment to provide important data on the mechanical properties of rocks. Index tests have been widely … See more A rock sample with various shapes (see below) is subjected to compression between two conical steel platens until failure. The apparatus consists of a rigid loading frame, a loading measuring system and a simple … See more A benefit of Point Load tests is that they can be conducted on cylindrical, rectangular or even irregular specimens given that they … See more When a PL test is completed, the raw data include the dimensions of the sample and the load of failure P(kN). Initially, the equivalent core … See more Depending on the shape of the specimen, the Point Load strength index can be derived via 4 different types of tests: See more WebThe cooling characteristics of liquid nitrogen can effectively weaken the mechanical properties of dry hot rock reservoirs, improve the porosity and permeability of dry hot rock, and thus improve the development and utilization of geothermal resources. In order to explore the weakening effect of liquid nitrogen cooling characteristics on high … WebThe Point Load Index Tester is used for determining the diametral point load strength index of rock cores and irregular lumps, which can be tested without any treatment. The Point Load Test is primarily an index test for … breakdown 3d