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However, it was found that the use of dolomite in its raw form could not improve the mechanical properties of the polymeric matrices. This is because dolomite particles easily agglomerate, while ...
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Abstract: This research aims to determine the mechanical properties of light weight vermiculite concrete of M30 grade by partial replacement of cement with GGBS and Dolomite In this study two different concrete mixes were prepared with partial replacement of cement with 40% of GGBS and fine aggregate with varying proportions of vermiculite …
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The deterioration of the dolomite specimen gets more severe with longer high humidity action, which presents as the decrement of peak strength and elastic modulus, as well as the increment of the peak strain and Poisson's ratio. It is also the fundamental reason for the deterioration of mechanical properties and the change of …
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These improved mechanical properties are maintained even at high amounts of dolomite, compared to the data presented in the literature, where even the addition of 5% dolomite in PC/ABS reduces ...
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The objective of this study is to investigate the effects of dolomite content on the mechanical properties of PC/ABS blend and to determine the optimum formulation for the PC/ABS/dolomite composites. Dolomite content in the PC/ABS/dolomite composites was varied ranging from 0 to 15 wt.%. The composite samples were then tested for …
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However, it was found that the use of dolomite in its raw form could not improve the mechanical properties of the polymeric matrices. This is because dolomite particles easily agglomerate, while ...
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In this research work, the impact of ZrSiO4 nanoparticles addition on the physical, thermo-mechanical, mechanical, and microstructure of the dolomite base refractories is investigated.
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The physical and static mechanical properties of dolomite e.g. density, specific gravity, static compressive strength and elastic modulus values are also determined. Petrological studies of dolomite are carried out through X-ray diffraction (XRD) test and scanning electron microscope (SEM) test. In the SHPB tests, it is observed …
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Grouting is an effective means to control water inrush in engineering practice. To better understand the degradation of seepage properties of fractured rock mass by grouting, steady-state seepage tests were carried out using the joint roughness coefficient (JRC) 2–4, 10–12, and 18–20 dolomite fracture specimens at 0.5, 1, 2, and 3 …
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Dolomite Powder on Mechanical Properties of M40 Grade . Concrete When Cement was Partially Replaced", IJITEE, ... The mechanical properties by applying compressive strength, splitting tensile ...
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The rock petrophysical (i.e., porosity, permeability) and mechanical properties were measured before and after the treatment. XRD was used to estimate the mineralogical compositions of each rock type. Then, the impulse hammer technique was implemented to measure the rock surface hardness at ambient pressure. ... Impact of acid wormhole on …
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Finally, in order to obtain the highest values of physical, mechanical and thermo-mechanical properties, the optimum content of each nanometer-sized tetravalent oxides was determined as ZrO2 = 2.5 ...
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In addition, dolomite is utilized as a flux in the production of ferro-alloys, iron, and steel. Based on the study, it is 4. Properties of Dolomite Powder Added in Concrete Among the properties, the effect of dolomite powder on the physical properties in the mechanical properties and microstructural characterization are discussed in detail. 4.1.
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Recently, Mustafa et al. (2022) investigated the influence of acid wormholes on the mechanical characteristics of carbonate reservoirs, including chalk, limestone, and dolomite. The results ...
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The addition of dolomite to a slag-based geopolymer matrix can improve its engineering properties and reduce disposal problems. This paper discusses the effect of alkali solution concentration ...
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The mechanical properties of rocks with relatively low cementation strength could be highly or lowly weakened. However, the reduction (in percentage, %) in mechanical properties of the limestone rocks with relatively high cementation strength is greater than that of the limy dolomite rocks with relatively high cementation strength.
Details10 Abstract: In order to study the mechanical properties of fractured dolomite, this paper first uses the rubbing 11 method to count the surface fracture of the dolomite rock samples, obtains the ...
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the impact strength of the composites continuously decreased as the dolomite content increased. The impact strength of pure PP was 103.87 J/m and reduced to 65.83 J/m with the addition of 5. wt ...
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Three kinds of pore-forming agents (corn flour, starch, and biochar) were selected to prepare dolomite-based porous ceramic catalyst carriers with good mechanical properties.
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This paper provides the effect of dolomite waste on various properties (fresh, mechanical, and durability) of concrete, analyzes the crucial findings of dolomite waste based on the partial ...
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Three kinds of pore-forming agents (corn flour, starch, and biochar) were selected to prepare dolomite-based porous ceramic catalyst carriers with good mechanical properties. Pore-forming agents occupy space within preformed agglomerates, such that after the pyrolysis and sintering have been completed there are spaces within the …
DetailsIn this study, the effect of bentonite (BT) and dolomite (DT) on the mechanical and microstructural properties of concrete was evaluated on nine mixes. Cement was replaced with bentonite and ...
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The study was intended to investigate the influence of dolomite content on the physical, mechanical and erosive wear properties of hybrid natural—synthetic fiber reinforced polymer composites. Therefore, epoxy composites, having fixed amount of Grewia optiva and glass fiber with varying proportion of dolomite particles (0, 5, 10 and …
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The results show that the dolomite fractures of the Leikoupo formation are relatively developed, the formation is dominated by low-angle fractures, and the core integrity is not high. ... and the physical parameters and mechanical properties of the rock were defined through physical and chemical tests and an understanding of the …
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The properties of residual dolomite, sometimes termed wad, are variable and uncertain. It represents the insoluble residue after dissolution of dolomite and is commonly found in the Neoarchaean ...
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Dolomite (CaMg(CO 3) 2) is a type of abundant natural mineral, which is over 4 billion tons in China [31]. ... After treated, mechanical properties of the samples increase sharply and reach the maximum value at 1000 °C. It is mainly attributed to the formation of leucite and special pore construction in the s.
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The feasibility of calcined dolomite (CD) with reactive calcium oxide acted as a GBFS activator has been proven in construction material with excellent mechanical properties and durability in ...
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The mechanical properties tested were Tensile strength at yield, Elongation at break (EB), Brinell hardness ... The mechanical properties of polypropylene filled dolomite mineral composite have been
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tested dolomite are listed in Table 1. 2.3 Experiment Content and Test Method The goal of our experiment on pillar specimens is to obtain the variation law of their mechanical properties and ...
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Key mechanical properties such as compressive strength and split tensile strength are also determined, along with non-destructive tests including ultrasonic pulse velocity and electrical resistivity. ... Influence of dolomite on the properties and microstructure of alkali-activated slag with and without pulverized fly ash. Cem Concr …
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The dolomite dust-emulsified asphalt composite with excellent mechanical properties was successfully prepared using alkali activation. The effects of different alkali concentrations and emulsified ...
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Therefore, there is a need to perform laboratory tests to assess the mechanical and microstructural properties of soft soil blended with GGBS-dolomite based geopolymer. In the current research, an attempt has been made to study the efficacy of GGBS and dolomite-based geopolymer with NH and NS as an alkali activator to …
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It results in a denser hercynite-containing magnesia-dolomite refractory with excellent hydration resistance and mechanical properties superior to those of a magnesia-dolomite refractory (see Fig. 7, Fig. 8, Fig. 9). The most outstanding properties were observed in the composition of the magnesia-dolomite refractory with 8 wt% of active …
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Effects of the dolomite type, ing agent (H2O2) and microsphere content, high-temperature treatment on the microstructure, pore structure and mechanical properties of final s were investigated.
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The reason of this attention can be attributed to the outstanding properties of dolomite-based products such as high refractoriness ... Hercynite-containing refractory specimens exhibit superior physical and mechanical properties than conventional magnesia-dolomite refractories. By hercynite addition, an improvement of ∼35% in …
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This work is devoted to structural and mechanical properties of CaMg(CO3)2–dolomite mineral. From Birch–Murnaghan equation of state (BM‐EoS) applied to the energy–volume data of the dolomite polymorph, we obtain a bulk modulus of 93.7 GPa with a pressure derivative of 4.7, which show suitable agreement with experimental data.
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