The effects of vegetation restoration on matrix structure and erosion resistance of iron tailings were studied at dump sites in Malanzhuang, Qian'an, Hebei province, China. The restoration process involved soil spray sowing restoration model with Rhus typhina, soil and iron tailings admixture spray sowing restoration model with Amorpha fruticosa Linn. and six-hole …
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The experimental results show that iron tailings sands had little adverse eect on the mortar strength, and there was a maximum increase of 13.2% in 28-day compressive strength compared with that of river sand mortar. The hardness values of all the iron tailings sand and the interfacial
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Iron tailings are solid wastes produced after iron ore is refined. Based on the analysis of the development of road engineering in our country, the application status of iron tailings sand in...
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This paper investigates the storage situation of tailings and waste rocks in the eastern Hebei Province, analyzes the physical and chemical properties of typical iron tailings and gold …
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In order to measure the effect of iron tailings sand replacing natural sand on the fire resistance of concrete beams, five full-scale iron tailings sand concrete (ITSC) beams and two natural sand concrete (NSC) beams were …
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In this paper, the dynamic pore water pressure development character-istics of tailings fine sand and tailings silt in a tail-ings pond with the centerline method are studied by dynamic triaxial tests.
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Using iron tailings powder as an mineral admixture, and iron tailings gravel and sand as coarse and fine aggregates, respectively, the flexural behavior of full iron tailings concrete (FITC) …
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Engineering, Hebei 063000, China; 1165506834@qq Abstract The ultimate bearing capacity of short reinforced concrete columns under partial pressure is calculated by the formula of ordinary short reinforced concrete columns and ... Replacing river sand with iron tailings can significantly improve the compressive strength of concrete. The ...
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Product name:Fine Sand Recycling Machine;Warranty:1 Year;Place of Origin:hebei;Marketing Type:New Product 2024;Brand Name:HW;Condition:new;Weight:12000 KG;Keyword ...
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The extensive extraction of mineral resources has led to a significant rise in tailings waste 1, which is characterized by its loose structure, limited water retention capacity, nutrient ...
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Hebei, a prominent province in China known for its abundant mineral resources, particularly in the eastern Hebei Province where significant quantities of tailings are generated as byproducts of mining activities. Therefore, it is imperative to conduct thorough investigations and implement comprehensive utilization strategies for these tailings resources to achieve recycling, …
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Tailings are often rich in silicates, the principal component of sand. But to date, the reality has been disappointing. More than 18,000 research papers have been published on the …
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It is the world's largest environmentally friendly ecological ceramic preparation project. The project comprehensively utilizes about 10 million tons of solid waste such as steel …
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Hebei Key Laboratory of Earthquake Disaster Prevention . ... In underflow tailings sand, coarse particles (diameter >0.075 mm) act as the skeleton, and fine particles (diameter <0.075 mm) can fill ...
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In this paper, the iron tailings powder, iron tailings sand and iron tailings gravel in Qian'an city are used to replace fly ash, river sand and gravel respectively as admixture, fine and coarse ...
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Aerated Concrete Prepared by Quartz Tailings Sand ... Handan Hebei Province, 056038, China 4Jiangxi Key Laboratory of Mining Engineering, Jiangxi University of Science and Technology, Ganzhou Jiangxi Province 341000, China 5Tianjin Sunenergy Sega Environmental Science & Technology Co. Ltd, Tianjin 300000, China
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Tailings are often rich in silicates, the principal component of sand. But to date, the reality has been disappointing. More than 18,000 research papers have been published on the topic in the ...
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2.1 Raw Materials. The cement used was Ordinary Portland Cement (P·O 42.5), which complied with the requirement of Chinese standard GB175-2007. The iron tailings (FN, PS, CD, BD, and LY) were selected from different regions in Hebei Province of China, as shown in Fig. 1, and the natural river sand (TR) was used to make a comparison.Their chemical …
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Prevention, Sanhe 065201, Hebei, China e-mail: 1020417487@qq ... tailings sand, Zhang et al. (2006), Chen et al. (2007) and others conducted dynamic triaxial tests on copper mine tailings sand, analysed the development law of dynamic pore pressure, and proposed a new method
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Among them, the carbon storage species of tailings sand in Hebei are dominated by iron, while those in Henan are mainly gold and red mud. The accumulated tailings sand in …
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2.1 Sample and test equipment. According to the requirements of the ASTM D422-63 specification (ASTM D422 2007), to carry out particle analysis and specific gravity tests, two kinds of tailings sand samples will be dried and crushed.The content of tailings fine sand with particle size less than 0.075 mm is 8.69%, the nonuniformity coefficient C u is 2.4, and the …
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Studies show [19] that a higher content of iron tailings sand results in lower mass loss and better freeze resistance of the concrete. Nuclear magnetic resonance analysis has found ... Hebei, China. Finally, BFs were purchased from a fiber manufacturer in Shanghai, China. All water used in the tests was tap water taken from the Fuxin City.
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The article conducts a study on the iron tailings sand concrete's fracture behaviour based on the double-K criterion. Five sets of standard three-point bending beam specimens of concrete with 0% ...
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