Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Juan-hong LIU"'
Publikováno v:
工程科学学报, Vol 44, Iss 12, Pp 1999-2007 (2022)
To investigate the early hydration and consolidation mechanism of superfine metal tailings powder in the CaO–CaSO4–H2O system, a clinker-free consolidation material based on iron tailings powder was prepared by superfine grinding lime, gypsum, an
Externí odkaz:
https://doaj.org/article/a919fae27ad1412aaada0312cc476202
Publikováno v:
工程科学学报, Vol 44, Iss 5, Pp 857-864 (2022)
Exhausted shallow resources have turned mining into deep mining, with the mining depth of most mines under construction being more than 1000 m. With the continuous increase of the mining depth of mineral resources, the thickness and strength grade of
Externí odkaz:
https://doaj.org/article/84499e6abca4480ab09eb7aec5f0d307
Publikováno v:
工程科学学报, Vol 42, Iss 11, Pp 1457-1464 (2020)
Red mud is a solid waste produced in the process of bauxite refining alumina, with high alkali content, and its treatment methods are mainly stacking and ocean dumping, which not only occupy a large amount of cultivated land and pollute land and wate
Externí odkaz:
https://doaj.org/article/8160fa0592ee4555bd2e06d55b5d8e68
Publikováno v:
工程科学学报, Vol 41, Iss 11, Pp 1405-1411 (2019)
The mine tailings generated from metallic ore not only occupies a large area of surface resources but also easily causes mud-rock flow and tailings dam failure. Moreover, the existence of a large number of underground voids threatens the safety of un
Externí odkaz:
https://doaj.org/article/60bff8b60b1c40548899b4c6551c0586
Publikováno v:
International Journal of Minerals, Metallurgy and Materials. 27:1191-1202
High-density tailings, small cementitious materials, and additives are used for backfill materials with poor early compressive strength (ECS), which may greatly affect the mining and backfill cycle, to prepare paste backfill materials (PBMs) with a h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d52c67fba4d7e1d756726f4de1eed9e9
https://doi.org/10.1007/s12613-020-1977-4
https://doi.org/10.1007/s12613-020-1977-4
Publikováno v:
International Journal of Minerals, Metallurgy, and Materials. 26:1329-1336
This paper reports a study on the reconstruction of broken Si-O-Si bonds in iron ore tailings (IOTs) in concrete. Limestone and IOTs were used to investigate the influence of different types of coarse aggregates on the compressive strengths of concre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ea57df63bda1129cab52129387043e7
https://doi.org/10.1007/s12613-019-1811-z
https://doi.org/10.1007/s12613-019-1811-z
Publikováno v:
Materials Science Forum. 956:324-331
Based on the particle size distribution test of 6 kinds of limestone powder, the fractal dimension of particle size distribution was calculated, and its influence on the surface area, median grain diameter and RR-B value was studied. In addition, 20%
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d78e1adda8d8aadaed4ff8dcdc962b6
https://doi.org/10.4028/www.scientific.net/msf.956.324
https://doi.org/10.4028/www.scientific.net/msf.956.324
Publikováno v:
Materials Science Forum. 866:94-98
In order to get the various strength grade of the cement and know the characterics of the hydration heat of multi-component cementitious binders, in this paper, we get the component-cement with low content clinker and high content admixture. The ceme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94dc94a4fa816b36d30c8f3ce325dfff
https://doi.org/10.4028/www.scientific.net/msf.866.94
https://doi.org/10.4028/www.scientific.net/msf.866.94
Publikováno v:
Applied Mechanics and Materials. 345:184-188
This paper mainly studied effects of NaCl,MgSO4 soaking experiments,carbonation and freezing and thawing cycle on concrete intensity.The results show:When the concrete is completely soaked in chloride solution,the concrete of high slump of the same s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::713457704b8367db3f9e86ac5e96ccb9
https://doi.org/10.4028/www.scientific.net/amm.345.184
https://doi.org/10.4028/www.scientific.net/amm.345.184
Publikováno v:
Advanced Materials Research. :333-337
In this article, the effects of compressive strength and carbonation depth of HCSA mixing amount on high volume fly ash concrete have been investigated. Besides, the effects of compressive strength and carbonation depth of the fly ash amount on HCSA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b6637bb130df5b58bcd890119535f94
https://doi.org/10.4028/www.scientific.net/amr.261-263.333
https://doi.org/10.4028/www.scientific.net/amr.261-263.333