tests will be performed to determine the uniaxial compressive strength of the rock. We will employ the Pearson correlation coecient and the maximum information coecient (MIC) to establish the ...

dolomite and granite rocks reported decreased uniaxial compressive strength with increasing grain size. In these cases, Griffith's theory of elliptical cracks is used to in …

 — The chemical composition of dolomite and the compressive strength of dolomite geopolymer composites were studied. The both composites prepared with mechanical mixer manufactured by with rotor speed of 350 rpm and curing in the oven for 24 hours at 80˚C.

##tihuan2## Predicting the unconfined compressive strength of the … Section snippets General. Researchers have tried to develop empirical methods to estimate the compressive strength of rocks by using tests such as point load (I P), the Los Angeles abrasion, the Schmidt hammer, the Shore hardness and slake durability tests.These tests have less …

 — Key mechanical properties such as compressive strength and split tensile strength are also determined, along with non-destructive tests including ultrasonic pulse velocity and electrical resistivity. ... 20% GGBS by weight of FA resulted in the highest strength gain of 66.2%, while a mix with 10% GGBS and 10% dolomite achieved a …

 — The most suitable NaOH concentration is 1.5% corresponding the highest compressive strength and the minimum solubility, which indicates the AD's compressive strength is controlled by the degree of dedolomitization reaction and the solubility could be used as the evaluation index of AD's compressive strength for designing the high ...

 — The point load strength test index (Is(50)) rapidly determines the tensile strength and the uniaxial compressive strength of rocks. It is necessary to analyze the power index (m) of Is(50) when conducting a point load test (PLT) on irregular rock blocks. In this study, sandy dolomites from the Sinian Dengying Formation (Zbdn) and …

(a) Sample placed between two steel plates of compressive strength test machine; (b) position of three strain gauges around the sample to measure lateral strain; (c) display the connection of strain gauges to the data logger A. Lakirouhani et al. Physical parameters, tensile and compressive strength of dolomite rock samples ...

Domato stone is a limestone containing quarzite dolomite that obtained from the coast of the Banggai island, Central ... BNA has compressive strength value 2.4 MPa and void ratio 19.2% ...

The number of pores formed during the firing process of the porous ceramics was large. Although the proportion of the dolomite in the aggregate was reduced, its compressive strength did not increase significantly. The compressive strength of the porous ceramics prepared with corn flour decreased from 8.41 to 7.42 MPa.

Therefore, the Unconfined Compressive Strength is calculated for the maximum load applied: ... Dolomite. 30-250. Table 2: Typical values of Uniaxial Compressive Strength for a various number of rocks (from Attewell & Farmer 1976). References. ASTM D7012-14e1, (2014). Standard Test Methods for Compressive Strength and Elastic Moduli of Intact ...

 — It indicated that the uniaxial compressive strength of sandstones was significantly dependent on the quartz content. However, both the calcite and dolomite contents lead to high values of P-value much larger than 0.05. Therefore, the uniaxial compressive strength of sandstones was not affected by the carbonate (i.e., calcite and …

 — The result showed that the MIRHA needed more water as compared to SF to achieve the similar fresh properties, similarly concrete with 5% SF showed about 9.70% higher compressive strength after 90 ...

(a) Sample placed between two steel plates of compressive strength test machine; (b) position of three strain gauges around the sample to measure lateral strain; (c) display the connection of strain gauges to the data logger 794 A. Lakirouhani et al. Physical parameters, tensile and compressive strength of dolomite rock samples ...

 — The present study focuses on utilizing stockpiled dolomite quarry waste for sustainable and cleaner production of concrete. Natural river sand is substituted with dolomite quarry waste at 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, and in concrete mixes. The test findings revealed the concrete mix made with 10% dolomite quarry waste …

 — 3.2.1 Degradation Law of the Uniaxial Compressive Strength of Dolomite. According to 20 groups of test results, the basic mechanic parameters such as peak strength, elastic modulus and Poisson's ratio …

The results indicated that compressive strength was increased with increasing calcination temperature and post-processing temperature. The value of compressive strength obtained in air was larger than that in other atmospheres. The compressive strength value reached 80N in the experimental condition.

Figure 7 shows the compressive strength of geopolymers based on the (FA + magnesite) blends milled for 180 s, in comparison with the strength of similar geopolymers based on (FA + calcite) [34 ...

 — The purpose of this paper is to investigate the strength, physical and engineering index parameters of selected dolomitic rocks with emphasis on grain size. …

 — Lakirouhani et al. investigated the influence of the grain size of dolomitic rock samples on compressive strength in Iran, a country where Dolomite is one of the most important mineral ...

 — The dolomite samples were mineralogically similar but varied in crystal grain size from fine-grained, medium-grained, to coarse-grained types. The experimental tests included the point load strength index, uniaxial compressive strength, P wave, dry and saturation densities of samples.

Uniaxial compressive strength ( ... Dolomite 86 38 443 8 110 49 443 2 10.1 Limestone 107 47 441 81 74 71 961 25 8.4 Marble 133 63 474 20 66 71 1074 4 9.3 Greenschist - - - - 93 44 472 3 Clay schist / -stone 68 38 563 2 40 21 537 …

In this study, 31 empirical equations are summarized that relate unconfined compressive strength and internal friction angle of sedimentary rocks (sandstone, shale, and …

KEY WORDS: Dolomite, Quarry dust, Compressive strength, Partial Replacement INTRODUCTION Concrete is a composite material that consists of binding medium, such as mixture of Portland cement and water, within which are embedded particles or fragments of aggregate, usually a combination of fine and coarse aggregate. Concrete is by far the …

Uniaxial compressive strength ( c) and deformation modulus of rocks. Average values from tests of intact rock samples. Tests of rocks world-wide. Scandinavian rocks tested at. …

 — The concrete compressive strength, flexure strength, and dynamic elastic modulus were reduced by 3.31, 3.28, and 3.28%, respectively, at the 10% inclusion of dolomite production waste than that of ...

 — The static uniaxial compressive strength of dolomite is found to be 38.59 MPa. The elastic modulus from the stress-strain graph at 50% of peak stress value is calculated to be 3.75 GPa (ASTM D3148-02 2002; Kumar 2007). 4.4 Dynamic Stress-Strain and Force Equilibrium for Dolomite.

 — Sandy Dolomite is a kind of widely distributed rock. The uniaxial compressive strength (UCS) of Sandy Dolomite is an important metric in the application in civil engineering, geotechnical ...

These rock samples were tested in the laboratory for specific gravity, point load strength, uniaxial compressive strength and mineral composition using weigh balance, point load tester, 1100kN compression machine and petrological microscope respectively. The filling rates of the front end loaders bucket were determined.

Mean tensile strength and compressive strength for selected sedimentary rock types (after Johnson and Degraff, 1988). The behavior of intact rock in the post-peak dom ain is not a true rock property and is partially dependent on the stiffness of the loading system. A testing machine consists of an assembly of