Results 11 to 20 of about 40,441 (143)
Influence of quartz powder and silica fume on the performance of Portland cement. [PDF]
Sci Rep, 2020 AbstractSupplementary cementitious materials interact chemically and physically with cement, influencing the formation of hydrate compounds. Many authors have analyzed the filler and pozzolanic effect. However, few studies have explored the influence of these effects on hydration, properties in the fresh and hardened states, and durability parameters ...
Tavares LRC +5 more
europepmc +5 more sources
Shock compression of quartz and aluminum powder mixtures [PDF]
AIP Conference Proceedings, 1995 The authors report about the shock-compression response of highly porous (55% and 65% dense) mixtures of 4Al + 3SiO{sub 2} powders having shock-induced phase transitions and chemical reactions. Shock recovery experiments were performed using the CETR/Sawaoka plate-impact system (P = 40 to 100 GPa) and the Sandia Momma Bear A Comp B fixture (P = 22 to ...
Joshi, V. S. +3 more
openaire +3 more sources
Manufacturing of Sustainable Ultra-High-Performance Concrete Using Response Surface Methods [PDF]
Engineering and Technology Journal, 2023 Quartz powder is used in ultra-high-performance concrete to improve granular packing, but repeated inhalation during manufacture can cause health issues. The mechanical properties of UHPC are influenced by the post-setting curing method.
Abbas Mohammed +2 more
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Development of high-volume recycled glass ultra-high-performance concrete with high C3A cement
Case Studies in Construction Materials, 2023 Ultra-high-performance concrete (UHPC) is a special cementitious composite material with outstanding qualities like compressive strength greater than 120 MPa, and outstanding durability in comparison to other types of concrete.
Jesús D. Redondo-Mosquera +4 more
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Mineralogical and chemical characteristics of a powder and purified quartz from Yunnan Province
Open Geosciences, 2016 For comprehensive utilization of powder quartz, a detailed mineralogical analysis is needed. In this paper, the minerals collected from a powder quartz deposit in Yunnan Province and its purification products were characterized by X-ray diffraction (XRD),
Zuo Ran-Fang +4 more
doaj +1 more source
Case Studies in Construction Materials, 2022 An innovative leader in cutting-edge sustainable concrete technology is ultra-high-performance glass concrete (UHPGC). Through the utilization of post-consumer glass, UHPGC technology can improve the environment.
Sevar Dilkhaz Salahaddin +2 more
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BuildingsTo enhance the microstructure and mechanical properties and to optimize the formulations of high-strength and high-flow ultra-high-performance concrete (UHPC), the effects of different quartz powder contents, fineness, and curing temperatures of UHPC ...
Jianguang Xu +9 more
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Quartz Powder Valorisation in White Self-Compacting Concrete: Mortar Level Study
Applied Sciences, 2023 Quartz powder (QP) from mining exploration has increased, and valorisation solutions are sought. QP incorporation in structural concrete is an exciting strategy for the growth and sustainable development of the concrete industry, waste management and ...
Ana Mafalda Matos +2 more
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Case Studies in Construction Materials, 2022 The paper is focused on the eco-efficiency calculations of recycled aggregate concrete (RAC) consisted of ordinary Portland and blast-furnace slag cements with three fine-grained wastes: quartz powder (Q), limestone powder (L) and fly ash (F).
Daniel Zawal, Anna M. Grabiec
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The influence of quartz powder addition on the production of paving blocks
Przegląd Naukowy Inżynieria i Kształtowanie ŚrodowiskaThe research investigates how quartz powder addition affects the physical and mechanical properties of concrete paving blocks made from cement, fine aggregate, water, and coarse aggregate mixtures.
Aryanto +2 more
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