Optimization of the Mix Formulation of
This paper focuses on the formulation of geopolymer cement from nickel–laterite mine waste (NMW) and coal fly ash (CFA) as This paper demonstration the influence of cement content on compressive and tensile strength, the initial rate of water absorption (PDF) The use of laterites for production of soil
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Lateritic soils based geopolymer materials: A review
Laterite soils from the world's tropical zones can be used as supplementary cementitious materials or solid precursors for geopolymer synthesis. This research Laterite River sand Lateritic fine aggregates Mortar Concrete Compressive strength 1. Introduction 1.1. General In order to provide adequate housing to meet Characterization and performance of processed lateritic fine
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A state-of-the-art review of the structure and properties of laterite
Recently, Nkwaju et al (Nkwaju et al. 2019a) reported an improvement in the sustainability of laterite-based geopolymer cement with the addition of sugarcane 1 Introduction Engineering is increasingly exposed to new challenges for the use of soil as a construction material, such as paving roads, stabilized layers supporting A new approach for stabilization of lateritic soil with Portland cement
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(PDF) Optimization of the Mix Formulation of
This paper focuses on the formulation of geopolymer cement from nickel–laterite mine waste (NMW) and coal fly ash (CFA) as geopolymer precursors, and sodium hydroxide (SH), and sodium...Abstract. This research supports green eco-friendly construction through utilization of laterite and sawdust ash as fine aggregate and supplementary cementitious SDA and laterite applications in concrete: Prospects and
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GXVW IOPscience
Laterite soils mixed with Portland cement are used worldwide in making blocks. However, due to the environmental effects associated with the high usage of cement, quarry dust cement because it demonstrated superior environmental advantages due to its lower carbon emissions and waste material utilization. This paper focuses on the Using Nickel-Laterite Mine Waste and Coal Fly Ash MDPI
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Stabilization of iron ore tailings with cement and bentonite:
The abundance of mining activities continuously increases mine wastes/tailings that require storage/disposal. It is well understood that the accumulation of tailings around mines, and consequently, their spreading in the environment could cause serious ecological hazards. Reuse and recycling of mine tailing materials, in construction In July 1976, the Nigerian Mining Corporation was directed to pr oceed with establishment of seven clay brick plants . Cement, clay and laterite [10][11][12] has been used in the production of(PDF) The use of laterites for production of soil
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Lateritic soils based geopolymer materials: A review
The chemical compositions of different lateritic soils used in the world by several scientists for elaboration of geopolymers are reported in Table 1. Both types of laterite soils were mainly constituted of Al 2 O 3, SiO 2 and Fe 2 O 3 as major oxides with sum ≤ 90% justifying their use as suitable materials for geopolymer synthesis.The cementitious materials were characterised and four concrete mixes (100% ordinary Portland cement; 15-30-55% of limestone-calcined clay-Portland cement; 30–70% of calcined laterite-Portland(PDF) Comparative performance of limestone calcined clay
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Are You Mining Minerals for Cement, or for Concrete?
Limestone is one of the key minerals used in cement making. Limestone is a sedimentary rock composed mostly of the calcium carbonate (CaCO 3) and, according to the Mineral Education Coalition, comprises about 15% of the Earth’s sedimentary crust. Surface mining is the general excavation method. There are a few underground limestone mines, Concrete with, up to 40% replacement for sand by lateritic fine aggregate achieves the design strength of 20 MPa. Further increase in laterite leads to decrease in strength of concrete. Many researchers have used laterite as fine aggregate replacement in concrete and they got adverse results in terms of workability or compressive strength.Characterization and performance of processed lateritic fine
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A state of review: challenges and techniques of laterite soil
The mechanical attributes of the laterite soil were investigated by stabilizing and using various cement-Flue-Gas Desulfurisation (FGD) gypsum ratio mixtures (1, 2, and 3% cement with 1, 3, and 5% gypsum, respectively) . The results showed that there was a sharp MDD rise, and an OMC drop at an optimal value of 2 percent cement and 5 The transportation infrastructure, including low-volume roads in some regions, needs to be constructed on weak ground, implying the necessity of soil stabilization. Untreated and cement-treated lateritic soil for low-volume road suitability were studied based on Malaysian standards. A series of unconfined compressive strength (UCS) tests was Strength and Durability of Cement-Treated Lateritic Soil
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Lateritic soils based geopolymer materials: A review
The chemical compositions of different lateritic soils used in the world by several scientists for elaboration of geopolymers are reported in Table 1.Both types of laterite soils were mainly constituted of Al 2 O 3, SiO 2 and Fe 2 O 3 as major oxides with sum ≤ 90% justifying their use as suitable materials for geopolymer synthesis. For the This research seeks to manufacture concrete by replacing fine aggregates in concrete with Fe-Al rich sand obtained from laterite scraps (mine waste) and fly ash-based cement. To reduce the colossal dumping of laterite scraps and curtail the utilisation of virgin aggregates, this study was done to utilise the laterite scraps effectively in concrete.Characterization and performance of processed lateritic fine
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Optimization of the Mix Formulation of Geopolymer Using Nickel-Laterite
Geopolymer cement has been popularly studied nowadays compared to ordinary Portland cement because it demonstrated superior environmental advantages due to its lower carbon emissions and waste material utilization. This paper focuses on the formulation of geopolymer cement from nickel–laterite mine waste (NMW) and coal fly 6 Laterite Mine W aste Concrete W aste Limestone Since at least 400 mL of samples were required in each of the sampling points 2 to 4, the volume of the synthetic AMD and the amount of each mediaAcid Mine Drainage Treatment Using a Process Train with Laterite Mine
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Full article: An overview of alternative raw materials used in cement
Raw materials chemistry. Cement manufacture requires a source of calcium, such as CaCO 3 or CaMg (CO 3) 2, which comprises almost 80–90% of the total and the rest is iron oxide (Fe 2 O 3, Fe 3 O 4), quartz (SiO 2), and clay/bauxite (Al-silicates) (Aïtcin and Flatt Citation 2015; Hewlett Citation 2003; Peray and Waddell Citation 1986).Traces of Na 2 O, K 2 O, American Journal of Civil Engineering and Architecture 60. f Flexural and splitting test results were about 8 16%. of the compressive strength of the laterite rock. concrete. g The static(PDF) Strength of Laterite Rock Concrete ResearchGate
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Using Nickel-Laterite Mine Waste and Coal Fly Ash
cement because it demonstrated superior environmental advantages due to its lower carbon emissions and waste material utilization. This paper focuses on the formulation of geopolymer cement from nickel–laterite mine waste (NMW) and coal fly ash (CFA) as geopolymer precursors, and sodium hydroxide (SH), and sodium silicate (SS) The world's cement-carbon-dioxide was evaluated at 1 and 1.8 billion tons in 1988 and 2000, respectively. Considering the trend observed in the cement market and industry, these CO 2 emissions are expected to reach 3.5 billion tons by the year 2015 .Laterite Based Stabilized Products for Sustainable Building
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Using Nickel-Laterite Mine Waste and Coal Fly Ash MDPI
cement because it demonstrated superior environmental advantages due to its lower carbon emissions and waste material utilization. This paper focuses on the formulation of geopolymer cement from nickel–laterite mine waste (NMW) and coal fly ash (CFA) as geopolymer precursors, and sodium hydroxide (SH), and sodium silicate (SS) 2.1 Materials. The soil investigated is lateritic soil (LS) with laterite gravel collected in the northeast region of Bolivia. The granulometric curve of the soil analyzed is shown in Fig. 1.The high content of fines in the samples collected in this study (%) is related to the fact that, during the exploration with machines, the layers of laterite gravel (Horizon A new approach for stabilization of lateritic soil with Portland cement
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A computational assessment of the deflection and shear
Mining of river and quarry sands is expensive, with negative effects on the environment. Laterite soil is a cheap and readily available material in sub-Saharan Africa. Laterite concrete, produced when sand is partially replaced with laterite and impregnated into the concrete is widely used in Nigeria. This paper presents a computational So far developed large scale gold mine in the country is the Lege-dembi gold mine, located in the southern greenstone belt region, being operated by private company with estimated reserve of 82 tons and an average annual production of 3.6 tons of gold. There is also small scale open pit mine of columbo-tantalite at Kenticha in the NATIONAL REPORT ON MINING Sustainable
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