Rock strength properties

This research investigates the properties of concrete utilizing coal mine waste rock (CMWR) as a substitute for river sand. The workability of fresh concrete is assessed through slump tests, revealing a decrease in a slump as the percentage of CMWR replacement increases.

13p viwalton 02-07-2024 1 1   Download

Introduction to Rock Mechanics (Second edition): Part 1 has present the contents introduction, classification and index properties of rocks; rocks strength and failure criteria; planes of weakness in rocks; deformability of rocks; applications of rock mechanics in engineering for underground openings;...

153p chenlinong_0310 23-02-2022 18 2   Download

Quality of blast preparation for rock beneficiation influences both on integrity of mineral stock in particular and in economical performances of enterprise operations in general. While rock processing for obtaining of crushed stone the yield of screenings is high, its amounts depend on rock strength properties.

6p tohitohi 19-05-2020 9 0   Download

This study was conducted to evaluate the effect of ultrasound application on the surface microhardness (VHN) and diametral tensile strength (DTS) of three high viscous glass-ionomer restorative materials (HVGIRMs). For each test (VHN and DTS), a total of 180 specimens were prepared from three HVGIRMs (Ketac-Molar Aplicap, Fuji IX GP Fast, and ChemFil Rock). Specimens of each material (n = 60) were further subdivided into three subgroups (n = 20) according to the setting modality whether ultrasound (20 or 40 s) was applied during setting or not (control).

6p trinhthamhodang1 16-11-2019 24 0   Download

The earlier in the process a student reaches the main idea, the better the structural principle is challenged. Lessons from the experiment suggest that getting a main idea and utility properties reconciled is a challenge that encourages students so that they will have a better drive in the process than students who work from a context adjustment solely. Reflection on the formgiving process was supported by a theoretical division into form elements. This was also used in discussion of a form’s weakness and strength with respect to the design specification.

10p giamdocamnhac 06-04-2013 81 6   Download

Tham khảo sách 'uiarine tructural designlv loads ultimate strength, fatigue and frature structural reliability,', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

634p khangoc2392 12-08-2012 39 3   Download