Effect of different water reducing agents on mechanical …
Fig. 6 shows the effects of different water reducers and their respective dosages on the slurry properties of MPGCM samples. From Fig. 6 a, it is evident that both SM and FDN have good water reducing effects on the slurry of the MPG mixture. As the dosage of the water reducing agent increased, the standard consistency water consumption of the ...
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Recent advances in flue gas desulfurization gypsum …
Lower slurry pH (3.5–4.5), hence of limestone utilization: Zheng et al. (2003) Lime and Mg enhanced lime: CaO, Mg salts: 99%: CaSO 4.2H 2 O lighter in color (higher value), if desired Mg(OH) 2: More expensive than limestone processes, but produces high quality gypsum: Srivastava (2000) Dual alkali process: Sodium solution (Na 2 SO 3) for ...
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Influence of adding gypsum on the properties of lime-stabilized expansive soil
The presence of sulfate (gypsum) increases the compressive strength and the expansion of lime-stabilised soil as the gypsum content increases, with a more pronounced …
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(PDF) Effect of Gypsum on Strength Behavior of Lime …
Effect of Gypsum on Strength Behavior of Lime-Modified Pond Ash as an Underground Stowing Material. Kalyan Kumar G G. ... In various locations worldwide, fly ash slurry has been injected into underground bord and pillar coal mine workings to provide support, and the method was recently used successfully for the Ipswich Motorway upgrade in ...
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Evaluation of engineering properties and environmental effect …
The main component of gypsum is calcium sulfate, and gypsum can be classified as anhydrite (CaSO 4), hemihydrate (CaSO 4 •0.5H 2 O, HH) and dihydrate gypsum (CaSO 4 •2H 2 O, DH) (Claisse and Ganjian, 2006).The HH gypsum is also called as bassanite. When the temperature is about in the 0–65 °C range, the 1.5 H 2 O molecules in DH gypsum would be …
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Effects of Aluminum Sulfate and Quicklime/Fluorgypsum …
Slurry B is usually composed of gypsum, water and quick lime . Slurry A is usually CSA cement and water [ 4 ]. The hydration of the main minerals in CSA clinker is as in Equations (3) and (4), and the ettringite (3CaO∙Al 2 O 3 ∙3CaSO 4 ∙32H 2 O) and aluminum gel (Al 2 O 3 ∙3H 2 O) as in Equation (3) are formed when there is enough ...
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A review on treatment gypsum soil by using cement and lime
Gypsum soils, known for their high solubility and weak structural integrity, pose significant challenges in construction and agricultural applications. These soils tend to exhibit excessive …
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Lime slurry treatment of soils developing on abandoned …
Gypsum, or gypsum-like phases, were observed by SEM-EDS analysis of treated soils as discrete particles or in complex aggregates with secondary Fe- and Mn-oxides. ... was likely responsible for the formation of secondary Fe- and Ca-minerals in soils and that the magnitude of this effect is controlled by lime slurry infiltration, soil porosity ...
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Strength Behavior of Sedimented Gypsum Slurry
Abstract. Rapid increases in the production of gypsum waste from the Flue Gas Desulphurization process necessitates that proper impoundments be built with an adequate understanding of the strength behavior of the sedimented gypsum slurry. This article presents laboratory experimental results that describe its physical characteristics and strength behavior. …
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(PDF) Effect of Glutinous Rice Slurry on the …
This study investigates the effects of glutinous rice slurry on the unconfined compressive strength (UCS), failure mode, and microstructure of lime-treated seasonally frozen soil subjected to ...
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Role of Gypsum Content on the Long-Term Performance of Lime …
The role of gypsum level on the long-term strength and expansion of soil stabilised with different lime contents is not well understood. This research, therefore, studied the effect of varying gypsum concentrations of 0, 3, 6, and 9 wt% (equivalent to the sulfate contents of 0, 1.4, 2.8, and 4.2%, respectively) on the performance of sulfate soil stabilised with two lime levels (4 …
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Lime Slurry for Water Treatment
Lime slurry acts to increase the pH of the raw water to which the lime slurry is added, this pH adjustment method is used for many different purposes. Typical lime slurry applications are things like neutralizing acidic waters. ... Look inside a kettle in hard water areas and the effects of water hardness are clearly visible in the scale that ...
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Effect of Glutinous Rice Slurry on the Unconfined …
Table 2 summarizes how lime and glutinous rice slurry stabilization affected the behaviour of some soils, as reported in the literature. Typically, the lime content used to improve soils is between 9%
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Mechanical Behavior of Gypseous Soil Treated with Lime
This paper presents the effect of gypsum and lime contents on the mechanical properties of soil. The compressive strength was estimated under different curing periods. PH, …
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Stabilization of high plasticity clay with lime and …
The aim of this study is to investigate the effect of lime, gypsum and lime with gypsum mixtures on the swell per-cent, swell pressure and unconfined compression strength of highly plastic clays in the Batikent region to specify an appropriate mixture ratio for soil stabilization. The opti-mum water content and maximum dry unit weight of clay
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Effect of various chloride concentrations on the reactivity of lime
The gold processing industry is a large consumer of lime reagents in various forms. Its role in gold processing is mainly as a pH control agent for optimal cyanidation leaching of gold, as well as ...
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Degradation of hemihydrate phosphogypsum-based backfill …
The results also showed that the chemical composition of water affects the yield stress of CPB slurry and that MC mitigates the negative effect of mine-processed water (MW) and thus lead to ...
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COMPARISON OF GYPSUM DEWATERING …
The gypsum dewatering feed pumps feed slurry to the gypsum dewatering hydrocyclone clusters and vacuum belt filter trains. The gypsum dewatering hydrocyclones separate and distribute the gypsum slurry suspended solids. The gypsum dewatering hydrocyclones have multiple sets of individual cyclones and a valve network, which
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(PDF) The effects of mixing slurry water with type …
Results: One-way ANOVA and LSD tests showed significant differences in the effect of slurry water on the setting time, compressive strength and dimensional stability of type III gypsum (p<0.05).
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Experimental evaluation of lime column as a ground …
Lime column (LC) is an effective method for ground improvement which causes reduction in settlement and enhancement in bearing capacity of soft soils, subsequently resulting in economical foundations. This study investigates the effects of LC on soft soil with the help of laboratory tests.
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Enhancing the Characteristics of Gypsum Soil by Adding …
Gypsum soil is highly vulnerable to moisture and water, which can cause disastrous and severe damage. Hence, the effect of adding cement and hydrated lime on the …
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The Effect of Particle Size Distribution on some Properties of Gypsum
The present work aim is to study the effect of elevated temperate exposure on properties of cellulose fiber reinforced gypsum (FCG), namely (density, compressive strength, flexural strength and ...
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(PDF) Physical and Geotechnical Perspectives of Gypsum on …
The susceptible behavior of sulphatic soil with lime treatment is explored mostly by using gypsum. However, the effect of varying sulphate cations contamination in the behavior of …
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The High Density Sludge (HDS) Process and Sulphate …
while gypsum precipitates slowly. Most lime treatment plant effluents are super-saturated for gypsum upon discharge. The reasons for this and the effects that are caused by this slow precipitation are discussed in greater detail in the following sections. ... with the lime slurry for neutralisation. To do this, the sludge from the clarifier ...
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Effect of Glutinous Rice Slurry on the Unconfined …
the effects of freezing and thawing, using glutinous rice slurry and lime as admixtures. However, there are very limited studies on the failure mechanisms and mechanical properties of glutinous rice slurry-improved soil under freezing and thawing effects. This study investigates the strength properties and freeze–thaw resistance of lime-treated
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(PDF) Effects of Granular Gradation on the …
Whereas for slurry with high clay content, the recommended lime dosage was established to be 2% to reduce its compressibility or enhance its permeability; for slurry with high silt content, the ...
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Environmental Benefits of Flue Gas Desulfurization Scrubber …
The slurry absorbs the SO2 in the flue gas and neutralizes its acidity. The slurry is also abrasive and can damage downstream equipment. Therefore, the slurry is often made of corrosion-resistant materials and reheated above its dew point to prevent erosion.
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A review on treatment gypsum soil by using cement and …
Gypsum soils, known for their high solubility and weak structural integrity, pose significant challenges in construction and agricultural applications. These soils tend to exhibit excessive …
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The Effect of Adding Mixture of Gypsum-Lime with …
The tests results indicated that adding the percentages for the gypsum-lime mixture (6% lime + 4% gypsum) affected the soil's properties by decreasing the plasticity index, …
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(PDF) Soil Stabilization Using Lime: Advantages, Disadvantages …
This study is an overview of previous studies on lime (quick and hydrated) -treated soil. Lime is the oldest traditional stabilizer used for soil stabilization.
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