Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Lately, basalt fibre has attracted attention as a possible construction material due to its properties such as high modulus of elasticity, high elastic strength, corrosion resistance, …
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Density if an intensive property of matter, which means the amount of the material is irrelevant when determining its density. A 10,000 gram bar of gold has the same density has a 1 gram bar of gold. Density is the ratio of an object's mass to its volume.
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Here we report density functional theory-based simulations of model basalt, hydrous model basalt and near-MORB to assess the effects of iron and water on the melt structure and density, respectively.
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Density: 2.9 g/cm 3; Mohs hardness scale: 6-7; Porosity: 0.10 – 1.0 % ; Compressive strength: 266±98 MPa ; ... Construction: Basalt is preferred for making aggregate or gravel for concrete and asphalt pavement. Also, it is ideal for road bases, railroad ballast, etc. Similarly, basalt sand and fines have various uses.
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Normal density, also known as particle density of aggregate, commonly ranges between 2400 to 2900 kg/m³. Aggregate Type Particle Density (kg/m³) Bulk Density (kg/m³) Relative Density Normal 2400-2900 1500-1800 2.4-2.9 Lightweight 900-2200 500-1200 0.9-2.2 Heavyweight 2500-4000 1500-2000 2.5-4.0 1. What is the …
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An experimental program is set up to test the effect of basalt aggregate content and its combinations with granite stone with variation of percentages in concrete mixes. ... Bulk density ...
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As for the preparation of artificial aggregate, basalt mud, which is abundant in reserves and required by resource utilization, is selected. Actually, ... of 2275 kg/m 3 ∼ 2363 kg/m 3 can be achieved by controlling the AABM admixture to within 30 vol% of the volume aggregate. This density reduction, less than 5 %, allows C-AABM to be ...
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Aggregate velocities for the current model decrease monotonically up to 16 GPa. In contrast, while the aggregate velocities using the BM3 EoS are lower than the average 1 …
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The influence of basalt fiber shows increased bulk density, resulting in higher specific gravity of basalt fiber than RHA. ... Fine aggregate is generally river sand which consists of natural sand and crushed stone of size 12 mm used in this research.
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Basalt aggregates are used in many countries, especially in the construction of road and airport pavements. The fact that basalt aggregates have high specific gravity and lower water absorption ...
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Aggregates: Blue Metal: 1.45: Road Base, DGB, FCR: 1.75: 2.4: Road Gravel, ROC: 1.8: 2.4: Dust: 2.1: River Gravel: 1.55: Crushed Sandstone 40-70mm: 2.1: ... This data is indicative only as product density may vary with grade, mineral content and moisture content depending upon the source. Should more definitive bulk densities be required ...
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The coarse basalt aggregate results in a decrease on mechanical strength, but the decrease degree is rather limited. With the increase of particle size of basalt aggregate, both compressive and tensile splitting strengths tend to decrease, from 144 MPa to 132 MPa and 9.8 MPa to 8.2 MPa at 28 days, respectively. •
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Main raw materials used are cement, natural river sand (RS), natural coarse aggregates (NA), recycled concrete aggregates (RA), chopped basalt fiber (BF), water and the water reducing agent. The cement is the ordinary Portland cement with the strength grade of 52.5 and the apparent density of 3120 kg/m 3 as per the Chinese standard [35] .
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The larger scatter in the GRAPE bulk density data for the basalt flows probably results from the fractured nature and narrow diameters of the cores, which consequently do not …
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In Figure 3, the most common (modal) value of the distribution falls at 2.63 g/cm 3, roughly the density of quartz, an abundant rock-forming mineral.Few density values for these upper crustal rocks lie above 3.3 g/cm 3.A few fall well below the mode, even occasionally under 1 g/cm 3.The reason for this is shown in Figure 4, which …
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Some studies were done on basalt aggregate concretes in the middle of 20th century, the results of which revealed that basalt rocks were superior compared to other rocks. The thermal expansion coefficient, conduction and conduction velocity of basalt are low. ... Density gap amount (%) 6.80: 19.22: LA Abrasion loss (%) 18.75: …
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An experimental program is set up to test the effect of basalt aggregate content and its. ... Fineness modulus, Specific gravity, Moisture content, Water absorption, Bulk density, Percentage of voids, Percentage of porosity (loose and compact) state for sand and SGP were also studied for product construction. Test results indicate that it is ...
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Density vs. Specific Weight and Specific Gravity An introduction to density, specific weight and specific gravity. Geological Time Geological periods and time scale. Metal Content in Minerals Content of metals in minerals. Mineral Hardness - Mohs Scale The Mohs qualitative ordinal scale characterizes the scratch resistance of various minerals.
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Andesite is an intermediate sub-alkalic rock with SiO2 contents ranging between 57 and 63 wt. %, and Na2O + K2O contents around 5 wt. %.Intermediate rocks are also characterized by an increased CaO content compared to that in acidic rocks. Similar CaO contents (6 – 7 wt. %) are also typical for diorite – the plutonic equivalent of …
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This study aims to examine the impact of using basalt macro-fibers (BMF) on characteristics of concrete made with recycled concrete aggregates (RCA). Test variables included the initial concrete grade (normal- and high-strength concrete (NSC and HSC)), RCA replacement percentage (30 and 60%), and BMF volume fraction (νf = 0.5 to …
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In both basalt aggregates, the single cracks occurring in the coarser grain classes are mainly in the pattern of secondary olivine crystallization. In addition, single cracks are visible in the basalt aggregate 2, which are rather related to the weathering of the material and are original cracks unrelated to the crushing system of these aggregates.
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Basalt coarse aggregates were selected in this study, which were manufactured in Shandong Province, China. As the first time research in our plan and considering the experimental program design, the maximum and minimum particle sizes were simply designated as 16 mm and 2.36 mm, respectively.And the investigated …
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To convert 100 kg of 20 mm aggregate to cubic meters, you need to know the density of the aggregate. The density of aggregate can vary, but a commonly used value is around 1.5 tonnes per cubic meter. So, you would divide the weight (100 kg) by the density (1.5 tonnes/m³ = 1500 kg/m³) to get the volume in cubic meters.
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The following table provides a comprehensive list of density values for different rocks at standard room temperature (approximately 20°C or 68°F) and 1 atmospheric (atm) pressure. ... Basalt: 2800 - 3200: Basanite: 2600 - 3200: Bauxite: 2550: Breccia (volcanic) 2140 - 3000: Chalk: 1200 - 2800: Clay (soft shale) 2200 - 2700: Coal: 1400 - 1800 ...
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Density: 2.9 g/cm 3; Mohs hardness scale: 6-7; Porosity: 0.10 – 1.0 % ; Compressive strength: 266±98 MPa ; Thermal conductivity: Poor, 1.672 Wm-1 K-1 at 20°C to 200°C ; …
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aggregates—sand, gravel, crushed stone, and air-cooled blast-furnace slag—produce freshly mixed normal-weight concrete with a density (unit weight) of 2200 to 2400 kg/m. 3 (140 to 150 lb/ft. 3). Aggregates of expanded shale, ... Chlorites Basalt Montmorillonites Mica. Sedimentary rocks. Zeolite Conglomerate Carbonate Sandstone
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High density: Basalt has a relatively high density compared to many other rocks, with an average density ranging from 2.7 to 3.0 grams per cubic centimeter. This makes it a …
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Granite Basalt Gneiss Schist Quart-zite Marble Lime-stone Sand-stone Shale Av. Co Max. Co Min. Co Range No. of samples 181.7 324.0 48.8 275.2 26 214.1 358.6 104.8 253.8 16 174.4 251.0 84.5 166.5 24 57.8 165.6 8.0 157.6 17 288.8 359.0 214.9 144.1 7 120.5 227.6 62.0 165.5 9 120.9 373.0 35.3 337.7 51 90.1 235.2 10.0 225.2 46 103.0 231.0 34.3 …
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At least three tests were carried out for each property and the mean values were obtained. The specific density of basalt ranges between 2.79 and 2.91 kg/cm3. The density of the …
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Density is a measure of the mass of a substance per unit measure. For example, the density of a one-inch cube of iron is much greater than the density of a one-inch cube of …
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The uncompacted bulk densities of the basalt aggregates were also determined in accordance with AASHTO T-19. Uncompacted bulk density ranges between 1347 kg/m 3 and 1549 kg/m 3. The basalt belonging to the olivine phyric upper most layers had shown the highest value while TB-AG-03 which is glassy rhyolite had shown the …
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The Density of Sand utility returns sand density based on sand conditions (wet/dry in bulk / packaged).. The density of the sand is affected if the sand is compacted (bulged) or loose and if it is wet or dry.When packed, the grains of sand are forced to form a narrower formation, and more matter is in the volume.. Natural sand i.e. locally available River …
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Basalt: 2.4 - 3.1: 75 - 80: Clay: 1.8 - 2.6: 20 - 40: Dolomite: 2.8: 50 - 60: Earth: 20 - 30: Gneiss: 2.69: 75 - 80 ... Weight or density of ditch filling materials. Excavation Slopes Calculating excavation slope. Geological Time Geological periods and time scale. Gravel - Cover Area Gravel aggregate covering area. Porosity Volume not occupied ...
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