Another proven use is as vibratory quartz in quartz clocks. However, the most important application is the use of silica sand to produce concrete. Other areas of utilization of quartz sand are: Filter sand in waste water treatment plants [1] Abrasive products in metal processing [2] Artificial bone substance (medical technology) [3]
1. Introduction. In an effort to increase resource recycling and minimize waste, mining and mineral processing waste should be of widespread concern in the scientific community owing to their large emissions [1], [2].Mining and mineral processing waste remains one of the world's leading waste sources [3], [4], [5], [6].The environmental …
The quartz sandstone wastes were used in definite percentages and replaced for coarse aggregates from 0% to at every 20% interval. The article …
Abstract. There has been growing interest to reduce the use of conventional natural aggregates to promote sustainability in construction industry. In this study, quartz …
The quartz-rich sandstone collected from Weiyuan County, Sichuan Province, western China, was processed for a total of 40 core samples, which were processed to rectangular shape according to ISRM …
As a valuable mineral resource, uranium is extensively utilized in nuclear power generation, radiation therapy, isotope labeling, and tracing. In order to achieve energy structure diversification, reduce dependence on traditional fossil fuels, and promote the sustainable development of energy production and consumption, research on the …
The content and distribution of impurities in quartz significantly affect the processing methods. This paper provides an insightful review on the processing of …
This paper describes the first application of the 210Pb dating method to quartz-sandstone stalactites, which until now had only been used to determine the growth rates of recent carbonate speleothems. Five stalactites were sampled from two quartz-sandstone caves located in Serra de Itaqueri, southeastern Brazil, and they all exhibited …
To analyze the impact of the factors on physical properties and the mechanism of tightness as well as favorable accumulation space of tight sandstone reservoir, comprehensive analysis is conducted using various kinds of experiments. The results show that the predominant rock type is medium-coarse grained lithic …
focuses on utilization of quartz sandstone wastes as a coarse aggre- ... the waste generated in the form of slurry by each marble processing unit on a daily (1.65 m 3), monthly (50.25 m 3), and ...
2 Sandstone Quarrying and Processing Operations 2.1 Sandstone Sandstone is a sedimentary rock comprised of lithified sands. Most is primarily quartz sand or a mix of …
Sandstone. Sandstone is a sedimentary rock composed mainly of sand-sized mineral particles or rock fragments. It is a common rock type that is found all around the world, often forming in areas where there is a lot of sand accumulation, such as in deserts, riverbeds, or coastal areas. The mineral composition of sandstone can vary …
The fine-grained sandstone was −906 m level and collected in the Zhujidong coalmine located in Huainan city, Anhui province, China. The main components of sandstone are quartz, feldspar, and dolomite [15–17]. Rock samples were processed into cylindrical specimens of 50 mm × 25 mm by cutting and polishing.
Sandstone quarrying is a highly polluting activity which produces a huge amount of dust and waste slurry emissions. Sandstone quarrying dust and wastes were found to be polluting nearby agricultural land and severely affecting the health of quarry workers (Ahmad, 2015; Singhal and Goel, 2020).A time-series study conducted on the …
To investigate the effect of siliceous cementation on the densification of sandstone and the forming process of tight sandstone, based on cathodoluminescence, scanning electron microscopy and thin section analysis, the growth mechanism and characteristics of quartz particles in tight sandstone formations are explored. …
The coal-dominated energy structure in the Beijing–Tianjin–Hebei region has caused serious air pollution and contradicts the construction of a clean, low-carbon, safe and efficient energy system. Substituting geothermal energy for fossil energy such as coal can effectively alleviate this problem. Located in the hinterland of the Beijing-Tianjin-Hebei …
The reservoir physical properties, pore types, diagenetic characteristics and reservoir quality controlling effect of the Xishanyao formation coal measure sandstone in the southern margin of the Junggar basin were discussed in this study based on thin section observation, high pressure mercury injection, low-temperature nitrogen adsorption and …
Concrete mixes with different types of coarse aggregates like dimension limestone waste, sandstone, basalt, and quartz are prepared at three different water cement ratio that are 0.35, 0.45, and 0 ...
3. Utilization of marble waste in mortar production. Presently, India having the marble reserve as 1931 Mega tonnes underneath the earth crust [11].Till now exploited marble has afflict the waste problems due to its quarrying and processing activities [34].The quantity of marble waste generated from its sawing, grinding and polishing activities …
This investigation aims to identify the possible utilization of sandstone slurry (SS) as an eco-friendly alternative material in self-compacting concrete (SCC). The SCC …
X-ray diffractogram of concrete after sulfuric-acid exposure (A28, D28, F28, A90, D90, F90); the letter A denotes control concrete; D denotes 60% quartz sandstone concrete; F denotes quartz ...
In summary, during the 0–120 h acid-leaching process, the relaxation time of uranium-bearing sandstone was mainly concentrated in 7–10 ms, which meant that the pore size range was 0.1–0.2 μm and most of the large pores such as micropores and pore cracks basically did not appear in the sandstone.
Quartz sandstone (QS) is a mine waste; therefore, its use in construction allows for both reducing the cost of the concrete and contributing to the utilization of waste. The scientific originality of this study is the identification of models of the effect of QS aggregate on the physicomechanical, durability characteristics, and eco-safety of greener high-strength …
The promise in the direct utilization of Ca- and Mg-bearing silicates emerges from evidence showing complete conversions of calcium silicate (CaSiO 3) and higher than 80% conversion of magnesium ...
3.2. Selection of Rock Samples and Specimen Processing. Select quartz sandstone ore suitable for easy processing, ore of less than 400 mm, in length width not exceeding 300 mm, and the thickness is about 100∼200 mm. There are no obvious cracks in the ore and has good integrity, as shown in Figure 5. An inner diameter of 40 mm is …
Quartz sandstone (QS) is a mine waste; therefore, its use in construction allows for both reducing the cost of the concrete and contributing to the utilization of waste.
Sandstones are a sedimentary type of rock which is composed of quartz, feldspar and other minerals. Since quartz and feldspar are the most common minerals in the Earth's crust, they are found in most of the sandstones irrespective of the region they occur.The formation of sandstone results by sedimentation through air or wind followed …
Quartz crystals are oxide minerals with the trigonal or hexagonal system, whose cell parameters are: a = 4.916 Å, b = 4.916 Å, c = 5.405 Å. The Si-O bond angle in α-quartz is 144° and the bond length is between 0.16101 and 0.16145 nm ( Götze, 2009 ). The different types of quartz crystals are shown in Table 1.
The sandstone skeleton was mainly quartz with a content of more than 85% and a particle size of 0.5–1 mm. A small amount of siderite, kaolinite, and albite particles was also present. ... After processing and conversion, the hardness parameter of a point on the sample's surface was finally ... Lund JW, Toth AN, Direct utilization of ...
2 Sandstone Quarrying and Processing Operations 2.1 Sandstone Sandstone is a sedimentary rock comprised of lithified sands. Most is primarily quartz sand or a mix of quartz and feldspar sands in conjunction with interstitial cementing materials including calcite, clay, iron oxides, and silica.