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The dolomite of most dolostones is granular, with the individual grains ranging in size from microscopic up to a few millimetres across. Most dolomite marbles are coarsely granular with individual grains ranging between 2 and 6 millimetres (0.079 and 0.24 inch) in greatest dimension. Vein dolomite grains may be up to several centimetres across.
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The compressive strength results disclosed that the strength of concrete increased by increasing the dolomite content as an additive in concrete. The highest compressive strength, 24.31 MPa, was found at 30% addition of dolomite in porous concrete related to the control specimen strength of 10.5 MPa.
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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
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The study demonstrated that incorporating up to 10% of calcite or dolomite into the low calcium FA, followed by MA, notably enhanced the compressive strength of geopolymers. ...
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The purpose of this work is to describe the effect of quarry dust and dolomite on the compressive strength of concrete. The present examinations indicate that dolomite may be used as partial replacement of cement in concrete and quarry dust may be suitably replaced with fine aggregate in concrete to some extent. The results are found to be …
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Strength of samples containing 25% of dolomite limestone powder increased by 16.7% and 23.5% at 14 and 28 days age, respectively, in comparison with reference samples. Fig. 4. Effect of dolomite ...
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As we can see, partial cement replacement with dolomite limestone powder results in compression strength increasing. Strength of samples containing 25% of …
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Combining with uniaxial compression tests and microstructure inspections, we study the mechanical deterioration rule and damage mechanism of the dry samples …
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WEBUniaxial Compressive Strength . Wave Velocity . Strong Correlation . Point Load . Brazilian Tensile Strength . Point Load Strength. The purpose of this paper is to …
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A dependence between the uniaxial compressive strength in the saturated state was established, including the explanation in which cases the correlation can be used to estimate the uniaxial ...
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The strength Activity Index (SAI) test is conducted to compare the compressive strength of nominal and modified mixes at 7 and 28 days. The dolomite …
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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.
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Maximum compressive strength was obtained when GGBS and dolomite were proportioned at 70:30. Steel fibres were added to geopolymer concrete (SFGPC) to improve the ductile behaviour and its ...
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PHYSICAL PARAMETERS, TENSILE AND COMPRESSIVE STRENGTH OF DOLOMITE ROCK SAMPLES: INFLUENCE OF GRAIN SIZE. A. Lakirouhani, F. Asemi, +2 authors. …
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The purpose of this paper is to investigate the strength, physical and engineering index parameters of selected dolomitic rocks with emphasis on grain size. For this purpose, three groups of dolomite from north western Iran, with the same mineral composition but different grain size, were selected; fine grain, medium grain and coarse grain. Three sets of …
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PHYSICAL PARAMETERS, TENSILE AND COMPRESSIVE STRENGTH OF DOLOMITE ROCK SAMPLES: INFLUENCE OF GRAIN SIZE. Ali LAKIROUHANI 1, Farhad ASEMI 1, …
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Deepthi C G, Shindon Baby, "Study on Compressive Strength of Concrete with Dolomite Powder an Crushed Tiles." IJIRSET, Vol. 5 Issue 9, September 2016. Study on the cementitious system of light ...
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In this study, the effect of finely ground dolomite and limestone on the metallurgical properties (green pellet drop strength, cold compression strength, reduction swelling index, and microscopic …
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Nevertheless, the addition of GGBS and dolomite significantly enhanced the compressive strength and split tensile strength of the GPC mixtures, at all curing ages. Incorporating 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 strength gain of …
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Physical parameters, tensile and compressive strength of dolomite rock samples: Influence of grain size. October 2020. Journal of Civil Engineering and Management. DOI:...
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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 …
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Ratios of uniaxial compressive strength to point load strength for fine grain, medium grain and coarse grain dolomite were 9.65, 14.25 and 15.78 respectively and ratios of Brazilian tensile strength to point load strength for fine grain, medium grain and coarse grain dolomite samples were 1.38, 1.36 and 1.61, respectively.
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In this study, 31 empirical equations are summarized that relate unconfined compressive strength and internal friction angle of ... and limestone and dolomite) to physical properties (such as velocity, modulus, and porosity). These equations can be used to estimate rock strength from parameters measurable with geophysical well logs. The ability ...
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The comparative analysis between the predicted compressive strength of both the model at 90 and 365 days were done in this study. Experimental compressive strength. The compressive strength test results of concrete containing dolomite quarry waste are shown in Fig. 8a. An increase in dolomite quarry waste caused a reduction in …
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Uniaxial compressive strength (UCS) value of a rock material is one of the most important design parameters in engineering practice and related fields of geosciences. Through this importance, prediction of UCS values of rock materials from nondestructive quicker and simpler tests are widely preferred. The aim of this study is to predict the UCS …
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792 A. Lakirouhani et al. Physical parameters, tensile and compressive strength of dolomite rock samples ... dolomites can be named dolomicrite, because of its fine grain size. This type of ...
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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 …
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From the overall review of dolomite waste in concrete, the following gap area has been found to study in the future Fig. 11 Compressive strength after an acid attack [95] The effect of dolomite as ...
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IJSTE Journals Call For Research Papers Engineering in Indian
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The test used is the Unconfined Compressive Strength (UCS) method. The test specimens shall be cylinders 3.0 inches in diameter and 6.0 inches in height. The asphalt mixture used is the AC-WC.
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