The objective of this study is to investigate the optimum nano-natural pozzolan (NNP) content in the NNP-based binder concrete. NNP was obtained by grinding a local volcanic scoria for six hours.
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Using chemical composition data, petrographic characteristics, powder XRD, and pozzolanic activity index data, it was summarized that both basalt and pumice had significant …
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Generally speaking, pozzolan additions have been reported to increase durability [5,13,14,15,21,26,32,33,34,35,36,37,38], decrease the heat of hydration [1,38], increase resistance to sulfate attack ... the pozzolans were included as superfine aggregates by subtracting their weight from the basalt sand and not from cement. All proposed dosages ...
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Concrete specimens at ages 7 days, 28 days, 56 days, and 90 days were tested by compression testing machine in the laboratory as shown in Fig. 2for its compressive strength having different percentage of mixture of basalt as a replacement of ordinary Portland cement. Level of …
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Natural pozzolans are tremendous source of reactive silica and alumina required for geopolymer synthesis as an alternative binder for ordinary Portland cement. They are available at a …
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Microstructure of UHPSCC Contains Garnet, Basalt, and Pozzolan Alireza Rashno1, Mohamadreza Adlparvar1,2*, Mohsen Izadinia1 1. Department of Civil Engineering, Najafabad Branch, Islamic Azad University, Najafabad, Iran 2. Department of Civil Engineering, University of Qom, Qom, Iran
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After presenting geological, physical and chemical data on basalt, the authors deal with the following: (1) stabilization with pozzolan-lime binders. A comparative study of the stabilization …
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The aim of the present investigation is to study the effect of fresh basalt on the properties of ordinary Portland cement pastes. The rate of hydration was studied from the determination of free...
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About (ISIC). International Silica Industries (ISIC) is a leading Jordanian company, established in 2007, specializing in mining and processing high-purity silica sand flour, along with other industrial minerals such as basalt, natural pozzolana, fly ash, and micro silica. With operations strategically located near Aqaba, ISIC is recognized globally for providing premium-quality materials to ...
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The paper presents the utilization of local natural pozzolan in combination with cement and lime to reinforce local basalt soil for building rural road structure in Dak Nong province.
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This study evaluates the rheology and mechanical properties and durability of concrete, which at the same time has properties of three types of self-compacting concrete (SCC), fiber-reinforced and ultra-high performance. This concrete contains pozzolans, garnet and basalt aggregates, and steel fiber. The purpose of this research is feasibility construction fiber-reinforced ultra-high ...
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"MEREN" Pure Pozzolan Black and Red Pozzolana, sourced from MEREN, with grain sizes ranging from 0 to 5000 microns, is highly prized for its versatility and utility across various industries. Its unique properties and dual-color options make it indispensable, particularly where adaptability and aesthetic appeal are crucial. The World's Finest Pozzolan Indulge in the …
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A pozzolan is a material that, when added to cement, reacts with excess calcium hydroxide to form additional C-S-H, thereby increasing the strength of concrete. It is often sourced from …
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Natural pozzolan, such as volcanic ash, is one of the ancient ingredients for construction and lime–pozzolan mortars have also been utilized by human beings for a very long time, tracing back to the neolithic age (Shi, 2001). During Roman times, they were widely applied in the masonry construction of arch bridges, aqueducts, retaining walls ...
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blended cements incorporating GGBFS and Natural Pozzolan (NP), Powder Technol., 177: 140-147. ... The basalt powder is a waste resulting from preparation ofaggregate used in asphalt mixture ...
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After presenting geological, physical and chemical data on basalt, the authors deal with the following: (1) stabilization with pozzolan-lime binders. A comparative study of the stabilization of basalt and gneiss shows the pozzolanic characteristics of basalt; (2) study of basalt-lime binders. The curves of evolution in the simple compression strength of basalt/lime binder samples and …
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Basalts are composed of plagioclase, pyroxene, and olivine minerals. Basalt used as natural volcanic pozzolans materials; represent large interest of researches as a real alternative to replace...
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basalt has no pozzolanic activity but it behaves as filler. Therefore, this type of cement is called filled-cement. The free lime increases for all basalt cement at three
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Pozzolana made from basalt natural material was tested for the best amount of weight percentage replacement as a blinding component in cements in this study.
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The use of finely ground natural pozzolan in combination with binders to reinforce local soil has been widely studied in the world. In which, there are some studies regarding the use of natural pozzolan in combination with lime to improve the soft ground [1,2,3,4].In general, the research results and application abroad have confirmed that natural pozzolan can combine …
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THE POZZOLAN CHARACTERISTICS OF BASALT MISE EN EVIDENCE DES PROPRIETES, POUZZOLANIQUES DES BASALTES. After presenting geological, physical and chemical data on basalt, the authors deal with the following: (1) stabilization with pozzolan-lime binders. A comparative study of the stabilization of basalt and gneiss shows the pozzolanic ...
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A pozzolan is a siliceous or siliceous and aluminous material that in itself possesses little or no cementitious value but will, in finely divided form and in the presence of moisture, chemically …
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The commonly observed disadvantages of using natural pozzolanic basalt as replacement cement in concrete are decreasing in early ages of compressive concrete strength but increase with time long ...
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