Zobrazeno 1 - 10
of 819
pro vyhledávání: '"microsilica"'
Publikováno v:
Revista Eídos, Vol 17, Iss 24, Pp 95-110 (2024)
This study evaluates the influence of varying proportions of nano-silica (NS) and microsilica (MS) as partial substitutes for cement in the formulation of high-performance concrete (HPC). Mechanical assessments, including compression, tension, flexur
Externí odkaz:
https://doaj.org/article/82d750c595f04adc8b41b5713f601a1f
Publikováno v:
Developments in the Built Environment, Vol 18, Iss , Pp 100399- (2024)
This study investigates the utilization of polyethylene fiber (PEF) and microsilica for the production of high-strength and high-toughness geopolymer concrete (HSHTGC). The influence of the PEF factor or microsilica content on fracture parameters and
Externí odkaz:
https://doaj.org/article/0ee4322ca6334903987d8615953cd79c
Publikováno v:
Journal of Materials Research and Technology, Vol 26, Iss , Pp 235-245 (2023)
In order to improve the output value of microsilica produced during the ferrosilicon production process as well as to reduce pollution, amorphous silica was prepared from microsilica by calcination, alkali leaching and acid precipitation. The relevan
Externí odkaz:
https://doaj.org/article/668080cdc00449f2b971dd6af827889e
Autor:
Yurii Barabanshchikov, Kseniia Usanova
Publikováno v:
Buildings, Vol 14, Iss 7, p 2121 (2024)
This study aimed to comprehensively investigate the properties of a binder based on high-calcium fly ash and silica fume with a complex additive consisting of calcium nitrate and magnesium chloride. The strength characteristics, the characteristics o
Externí odkaz:
https://doaj.org/article/df6641a0854b4a56882a360d39bd4278
Publikováno v:
Materials, Vol 17, Iss 12, p 2791 (2024)
In this paper, we study the influence of densified microsilica and colloidal nanosilica admixtures on the mechanical strength and the microstructural characteristics of special mortars used for immobilizing radioactive concrete waste. The experimenta
Externí odkaz:
https://doaj.org/article/780d278cfff748818208d3e8ae9d3a0a
Autor:
Dzhumakhon Sharifov, Rimma Niyazbekova, Avazi Mirzo, Lazzat Shansharova, Mira Serekpayeva, Saule Aldabergenova, Ainur Ibzhanova, Ryszard Machnik, Michał Bembenek
Publikováno v:
Materials, Vol 17, Iss 12, p 2959 (2024)
This research is aimed at studying the properties of polymer anticorrosion coatings based on ED-20 resin widely used in practice and industrial wastes. In this work, three basic types of nanoscale nanofillers were chosen: dispersed particles—micros
Externí odkaz:
https://doaj.org/article/32499eebcc44415c800c0374bec27453
Autor:
Hadi Faghihmaleki, Hossien Nazari
Publikováno v:
Advances in Bridge Engineering, Vol 4, Iss 1, Pp 1-30 (2023)
Abstract In the present study aims to produce high-strength fiber concrete containing microsilica and metakaolin. Eight concrete mixing samples have been defined. The samples include the control concrete with ordinary Portland cement, replacing 10 pe
Externí odkaz:
https://doaj.org/article/2f6d90020f4b45e5af60c64a00de0ccc
Publikováno v:
Magazine of Civil Engineering, Vol 124, Iss 08 (2023)
Fly ash from Berezovskaya Thermal Power Plant, containing a lot of CaO, in combination with silica fume does not expand and exhibits the properties of a binder. However, the strength of this binder is low. The addition of Ca(NO3)2 significantly incre
Externí odkaz:
https://doaj.org/article/bc1698ac83bb4869982ff10400e451ed
Publikováno v:
Magazine of Civil Engineering, Vol 123, Iss 07 (2023)
This work aims to study the effect of MgCl2 additive on the strength, heat of hydration, and phase composition of hydration products of the binder consisting of high-calcium fly ash and silica fume. Fly ash from Berezovskaya thermal power plant, cont
Externí odkaz:
https://doaj.org/article/3942a8bebed147f88fe63b8c8ad2d995
Publikováno v:
Materials, Vol 17, Iss 9, p 2024 (2024)
This article presents the results of an investigation of the proposed method and the influence of a modified additive on foam concrete properties. X-ray diffraction analysis showed that the modified additive has a variable mineralogical composition,
Externí odkaz:
https://doaj.org/article/b9d0f7c8f61044a796a2c99662319624