Testing of rock product updated 15:03:2024

STUDENT STUDENT - PRODUCT ASSESSMENT TASK PRODUCT ASSESSMENT TASK Task Number 1 of 4 Task Name Laboratory Test 1 - Testing of Rock Product - Point Load Strength Index National unit/s code VU22484 National unit/s title Implement Site Investigation Procedures National qualification code 22479VI C National qualification title Advanced Diploma of Engineering Technology (Civil Engineering Design) RMIT Program code C6162 RMIT Course code CIVE7782 Section A - Assessment Information Duration and/or due date: Laboratory Activity: Week 3 for Group 1 and Week 4 for Group 2 Laboratory Report Submission: Week 5 for Group 1 and Week 6 for Group 2 Task Instructions Type of Product (tick which applies) ☐ Project  Report ☐ Portfolio ☐ Case study Summary and Purpose of Assessment: This task allows you to demonstrate your ability to work in a team to conduct a Rock strength tests - Determination of point load strength index . You will be given verbal instructions, plans and job specifications for the task by your assessor. You will then be required to consult with other students in your study group/team to develop a basic test plan of rock products, take representative rock samples, then test and analyse the results in the RMIT laboratory. You are required to submit the necessary documents to the agreed quality requirements to be deemed satisfactory for the task. This unit of competency sets out the knowledge and skills required to apply site investigation procedures and geological studies, through an understanding of engineering soils, major rock and mineral types, in accordance with AS 1726. This includes tests that are common to the behaviour of engineering soils, in accordance with AS 1289. In this assessment you will demonstrate your knowledge and skill that requires you to 1. Identify site location and materials to be tested and analysed 2. Plan test and analyse 3. Conduct test and analyse results 4. Document and report results Student Instruction 1. This is an individual lab-based assessment. [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 1 of 22

STUDENT 2. You are required to perform tasks in the Task List. 3. You will be observed by an assessor in completing each of the steps as set out in the observation checklist. 4. You are required to wear the correct protective clothing before commencing this assessment task. 5. You will be assessed against the criteria as listed in the observation checklist report writing in Section B of this task. 6. You will strive to work with minimal guidance from the supervisor and/or mentor. 7. This assessment will be carried out during the class time under supervision in RMIT building 57 in Civil Engineering workshop [057.01.001]. 8. You must fill in the Job Safety Analysis (JSA) Worksheet and RMIT Risk Assessment Form. TASK LISTS: You are provided with rock samples collected from a construction site from RMIT University/other location as suggested by your teacher. You are required to conduct Point Load testing . The Point load test is an index test by which the rock is classified according to the strength. The test can be used to estimate other characteristics of intact rocks with which it correlates, such as uniaxial compressive and tensile strength. Task 1: You must read and sign the Job Safety Analysis (JSA) Worksheet to understand the OHS/WHS and environment requirements for the rock samples test task. Ensure that you follow the requirements and risk control measures in preparation of the work area. Download the JSA Worksheet from CANVAS. (PC 1.1, 1.2, RS 2) Task 2: Use RMIT Risk Assessment Form to conduct risk assessment for the site. You will identify environmental hazards (i.e. liquid waste, dust, excessive noise), safety and equipment hazards, document the risk control measures and implement in consultation with the assessor. Download Risk Assessment Form from CANVAS. (PC 1.3, 1.5, RS 1) Task 3: Follow OHS/WHS requirements during carrying out plan test and analyse, conduct test and analyse results and document the report (PC 2.1, 3.1, 4.1) Task 4: Refer to the rock sample test work request provided below. Follow the procedures provided to conduct the task in Appendix A: Laboratory Testing Procedures. Consult with your assessor to analyse the tasks and coordinate the work effectively. (PC 1.4) 1. Obtain resources and equipment needed for the task in accordance with Appendix A: Laboratory Testing Procedures (PC 1.6) 2. Set up and calibrate sample testing equipment and record in accordance to Job Safety Analysis (JSA) and Australia Standard (PC 2.2, 2.3, 2.4, 3.4,RS2, RS4, RS5) 3. Ensure to store the equipment according to the Job Safety Analysis (JSA) (PC 3.2) 4. Plan, test and record the rock sample in accordance to Australian Standards [AS 4133.4.1 - 2007 Reconfirmed 2016]/local standard or regulation in Appendix A: Laboratory Testing Procedures (PC 1.6) a. Prepare the rock samples according to AS 4133.4.1. (PC 2.5) b. Carry out/conduct laboratory Point-Load test using the Point Load Testing equipment. (PC 3.3, RS 3, 5, RK 2, 10, 42) c. Discuss unexpected situations like difficulties to get the correct representative rock samples, handling the equipment, etc. with your assessor on the soil test and using [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 2 of 22

STUDENT Students need to achieve satisfactory (S) results in all three (3) assessments to be deemed Competent (CA). Instructions on submitting your project/portfolio/report Students are required to read and sign Safe Work Methods Statement (SWMS) form provided by the teacher before conducting the laboratory experiment. Equipment/resources students must supply: Equipment/resources to be provided by RMIT or the workplace:  Scientific Calculator  Clip Board  Writing Pad  Ruler  Long Sleeves Shirt & Long Pants  Steel Capped Safety Boots  Safety Glasses  Other appropriate PPEs as required  Computer and RMIT Internet Access  Microsoft Office suite  RMIT University Laboratory located at 057.01.001  Hard copies of the student version of this assessment task OR access to soft copies  Point Load Testing Equipment  Rock samples to conduct Point Load Testing [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 4 of 22

STUDENT Appendix A: Laboratory Testing Procedures Reference: AS 4133.4.1 - 2007 Reconfirmed 2016 Method of testing rocks for engineering purposes - Method 4.1: Rock strength tests - Determination of point load strength index PROCEDURES: General: Obtain and set up the point load testing machine according the RMIT University Policy. Perform the necessary calibration of the equipment as suggested by your teacher. Select rock samples containing sufficient material for the required number of test specimens from each domain of the rock mass for which point load strengths are required. Samples in the form of core are preferred for more accurate strength classification. Specimens shall be tested at close to their in situ moisture content. Loading rates shall be applied without shock such that failure is obtained 30 s to 3 min after commencement of loading. Diametral Test: The procedure shall be as follows: Select core specimens with a length/diameter ratio greater than 1.0. Insert each specimen in the loading device and close to the platens to make contact along the core diameter, ensuring that the distance ( L ) from the contact points to the nearest free end is at least 0.5 D , where D is a distance between the contact points (see Figure 1). Increase the load to failure then record the distance ( D ). Record the failure load ( P ) and failure mode for each specimen. Axial Test: The procedure shall be as follows: Select core specimens with a length/diameter ratio of 0.6 to 1.0 (see Figure 1). [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 5 of 22

STUDENT (B) The point load strength index ( I S ( 50 ) ) from the following equation: I S ( 50 ) = I s × ( D 50 ) 0.45 where I S ( 50 ) = point load strength index (MPa) I S = uncorrected point load strength (MPa) D = platen separation (mm) (ii) For Axial Tests: (A) The uncorrected point load strength ( I S ) from the following equation: I S = P × 1000 D e 2 D e = √ 4 A π A = D×W where I S = uncorrected point load strength (MPa) P = load at failure (kN) D e = Equivalent core diameter (mm) A = the minimum cross-sectional area of the plane through the platen points (mm 2 ) (B) The point load strength index ( I S ( 50 ) ) from the following equation: I S ( 50 ) = I s × ( D e 50 ) 0.45 where [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 7 of 22

STUDENT I S ( 50 ) = point load strength index (MPa) I S = uncorrected point load strength (MPa) D e = Equivalent core diameter (mm) Appendix B : Point load test worksheet Student No. Student ID. Name of Student Signature 1 2 3 4 5 Type of Test: Diametral Test Sample Number Initial Diameter (mm) Platen Separation (mm) Load at failure (kN) 1 48.0 X 47.1 X 22.5 X 2 48.0 X 47.2 X 22.4 X 3 48.0 X 47.3 X 21.9 X 4 48.0 X 47.4 X 22.6 X Type of Test: Axial Test Sample Number Initial Diameter (mm) Platen Separation (mm) Load at failure (kN) 1 48.2 X 46.1 X 23.5 X 2 48.4 X 46.2 X 23.4 X 3 48.5 X 46.3 X 23.9 X [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 8 of 22

STUDENT D e = √4 x A/ π D e = √4 x 2226.74/3.14 D e = 53.26mm 3. uncorrected point load strength (MPa) I S = P x 1000/ D e 2 I S = 23.55 x 1000/ 53.26 2 I S = 8.30 MPa 4. The point load strength index ( I S ( 50 ) ) I s(50) = I s x (D e /50) 0.45 I s(50) = 8.30 x (53.26/50) 0.45 I s(50) = 8.54MPa The rock strength class is ( very high ) 2. Diametral Testing / Sample 2 (C)The uncorrected point load strength ( I S ) I S = P x 1000/ D 2 I S = 22.45 x 1000/ 47.25 2 I S = 10.06 MPa (D) The point load strength index ( I S ( 50 ) ) I s(50) = I s x (D/50) 0.45 I S(50) = 10.06 x (47.25/50) 0.45 I S(50) = 9.81MPa The rock strength class is ( very high ) (ii) Axial Testing / Sample 2 [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 10 of 22

STUDENT 5. the minimum cross-sectional area of the plane through the platen points (mm 2 ) A = D x W A = 48.45 x 46.25 A = 2240.81 mm 2 6. Equivalent core diameter (mm) D e = √4 x A/ π D e = √4 x 2240.81/3.14 D e = 53.43 mm 7. uncorrected point load strength (MPa) I S = P x 1000/ D e 2 I S = 23.45 x 1000/ 53.43 2 I S = 8.21 MPa 8. The point load strength index ( I S ( 50 ) ) I s(50) = I s x (D e /50) 0.45 I s(50) = 8.21 x (53.43/50) 0.45 I s(50) = 8.46 MPa The rock strength class is ( very high ) 3. Diametral Testing / Sample 3 (E) The uncorrected point load strength ( I S ) I S = P x 1000/ D 2 I S = 21.95 x 1000/ 47.35 2 [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 11 of 22

STUDENT I s(50) = 8.36 x (53.54/50) 0.45 I s(50) = 8.62 MPa The rock strength class is ( very high ). 4. Diametral Testing / Sample 4 (G)The uncorrected point load strength ( I S ) I S = P x 1000/ D 2 I S = 22.65 x 1000/ 47.45 2 I S = 10.06 MPa (H) The point load strength index ( I S ( 50 ) ) I s(50) = I s x (D/50) 0.45 I S(50) = 10.06 x (47.45/50) 0.45 I S(50) = 9.83MPa The rock strength class is ( very high ) (iv) Axial Testing / Sample 4 13.the minimum cross-sectional area of the plane through the platen points (mm 2 ) A = D x W A = 48.45 x 46.5 A = 2250.50 mm 2 14.Equivalent core diameter (mm) D e = √4 x A/ π D e = √4 x 2250.50/3.14 D e = 53.54 mm [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 13 of 22

STUDENT 15.uncorrected point load strength (MPa) I S = P x 1000/ D e 2 I S = 23.65 x 1000/ 53.54 2 I S = 8.25 MPa 16.The point load strength index ( I S ( 50 ) ) I s(50) = I s x (D e /50) 0.45 I s(50) = 8.25 x (53.54/50) 0.45 I s(50) = 8.51 MPa The rock strength class is ( very high ) ALL VALUES OF I S AND I S(50) OF DIAMETRAL TEST I s Values = 10.14, 10.06, 9.80, 10.06 I s(50) Values = 9.87, 9.81, 9.60, 9.83 ALL VALUES OF I S AND I S(50) OF AXIAL TEST I S =8.30, 8.21, 8.36 8.25 I s(50) = 8.54, 8. 46, 8.62, 8.51 Since the number of samples are less than 10 only highest and lowest value is discarded. REMAINING VALUE OF I S AND I S(50) OF DIAMETRAL TEST I S =10.06, 10.06 I s(50) = 9.81, 9.83 REMAINING VALUE OF I S AND I S(50) OF AXIAL TEST I S = 8.30, 8.25 I s(50) = 8.50, 8.51 MEAN VALUE OF I S Diametral test = 10.06+10.06/2 = 10.06 MEAN VALUE OF I S(50) OF DIAMETRAL TEST = 9.81+9.83/2 = 9.82 [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 14 of 22

STUDENT Section B – Observation Checklist Criteria for assessment Satisfacto ry Not Satisfactor y Comments 1. Read, sign and submit the Job Safety Analysis (JSA) Worksheet (Available in CANVAS) to understand the OHS/WHS and environment requirements for the task. Ensure you follow the requirements and risk control measures in preparation of the work area. ☐ ☐ 2. Identify and report hazards of the working site Complete the Risk Assessment document prior to commencement of works/tasks.  accurately identify risks/hazards related to point load test.  accurately identify corrective measures The factors of risks/hazards include:  Condition of flooring or work surface  Clear pathways between desks  Adequate lighting to allow safe access and exit  Procedures to deal with spillages, eg water, blood from cuts, etc.  liquid and solids waste  Manual handling related to carrying and operating equipment  Flying rock fragment ☐ ☐ 3. Identity the right resources and equipment needed for the soil test task in accordance with enterprise procedures Consider the following points: ☐ ☐ [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 16 of 22

STUDENT Criteria for assessment Satisfacto ry Not Satisfactor y Comments  Choose CIVI Lab/other Point Load Testing machine.  Follow AS 4133.4.1 4. Set up and calibrate sampling testing equipment and record in accordance to Job Safety Analysis (JSA) and Australia Standard Follow AS 4133.4.1 and instruction from your teacher. These may include the following points:  Check the proper functioning of the load gauge and re zero the load gauge  Calibrate the distance measurement scale  Check the proper functioning of the hydraulic ram ☐ ☐ 5. Store the equipment according to the Job Safety Analysis (JSA) Follow AS 4133.4.1 and instruction from your teacher. ☐ ☐ 6. Prepare the soil. Follow AS 4133.4.1 and instruction from your teacher. Consider the following points:  For Diametral Test, L should be greater than 0.5D  For Axial Test you should follow the relation as 0.6W<D<W Both ends of the rock sample should be level ☐ ☐ 7. Accurately using the equipment to conduct Point-Load test Follow AS 4133.4.1 and instruction from your teacher. ☐ ☐ [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 17 of 22

STUDENT Section C – Feedback to Student Has the student successfully completed the task? Yes No Feedback to student: Assessor Name Date [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 19 of 22

STUDENT Some Photos: [LabReport1_VU22484_AT1_Student_28042020] [1 of 4 ] [28/04/2020] Student product assessment task © Content is subject to copyright, RMIT University FINAL APPROVED – STUDENT PRODUCT ASSESSMENT TASK TEMPLATE – June 2019_Version 2.0 Page 20 of 22