Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
Read More
Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
Read More
By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
Read More
Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
Read More
Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
Read More
The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
Read More
Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
Read More
Keywords: soil improvement, cement kiln dust, GGBS, CBR improvement 1 Introduction The gypsum soil covers nearly 32% of Iraq [1]. Many struc-tures are constructed on this soil subjected to the total or differential settlement, mainly when the water attacks these sites. This article studies the effect of adding cement
Details
The results of field test for the soil containing70% gypsum tested at 100kN/m2 stress shows a pronounce improvement in the S/B value which gives a reduction percent reaches 90 %, which shows a considerable improvement in the collapsibility of this problematic soil. Keywords:- Gypseous Soil, Soil Improvement.
Details
3.4 Unconfined Compressive Strength results of TerraZyme and Gypsum treated soil As seen from chart 4 there is much higher improvement in shear strength of TerraZyme and Gypsum treated soil in 7 days as compare to only TerraZyme treated soil. For maximum dosage of TerraZyme with 6% Gypsum increases in strength is upto 240 kPa. 5 2 146 9 5 1 4 6 ...
Details
This study investigates the impact of gypsum and Portland cement as binding agents on the stabilization of soft sediment. Eight combinations of gypsum and Portland cement were studied to identify the optimum gypsum content for a total binder content of 8% (by wet weight of sediment).
Details
control, visual improvement and removal of threats to human beings (Wong, 2003). Reclamation strategies must address soil structure, soil fertility, microbe populations, top soil management and nutrient cycling in order to return the land as closely as possible to its pristine condition and continue as a self-sustaining ecosystem.
Details
Treatment of natural soil with stabilizer led to a increase in MDD values of 1.58Mg/m3 at 4% RHA and cement for BSL, 1.66Mg/m3 at 2% RHA and cement for WAS, and 1.62Mg/m3 at 2% RHA and cement for ...
Details
This study focuses on the settlement of soft soil improved by floating soil cement columns in a small-scale physical test. The effect of area improvement ratio (a p) and column height (H c) on the improved ground under design load (W d) were investigated via small-scale physical modeling tests.The area improvement ratios of 21.7, 32.5, and 43.4% and column …
Details
Modifications of the soil properties using physicochemical reactions prove to be more effective in sustaining the improvements over the long term than the other methods (Indraratna …
Details
Keywords: soil, lime, cement, atterberglimits, OMC and MDD 1. Introduction Soil improvement is the process of the alteration of the geotechnical properties to satisfy the engineering requirements [1]. Many types of stabilizers were used as soil additives to improve its engineering properties. A number of
Details
Huang et al. [6] found that adding gypsum additive to solidified material could improve the strength of cement-reinforced soil when strengthening soft soil foundation using a cement-soil mixing ...
Details
The recycled gypsum powder is effectively used as a raw material for cement, raw material for neutral ground improvement materials, and ground improvement materials for agriculture. However, when used as a ground improvement material, it is pointed out that the fluorine contained in recycled gypsum powder may dissolve into the improved ground.
Details
Gypsum in its natural state (gypsum mineral), as recycled and industrial waste (e.g. used or waste plasterboards), or as phosphate industry and thermal power plants by-product (e.g. phosphogypsum, flue gas desulfurization gypsum) has the potential to be used as a …
Details
This practice applies where land application of gypsum products will be used to alter the physical and/or chemical characteristics of soil to help achieve one of the above purposes. To …
Details
The highest improvement that was recorded is reaching to 192.40% increases on the 30th day of curing from the mixed samples which is the mixtures of Kaolin with 6% of gypsum and 12% palm oil fuel ash. This elucidates that both …
Details
ANALYZED SOIL IMPROVEMENT BASED GYPSUM AND CEMENT IN SOIL CLAY Nuril Mahda Rangkuti *1 *1 Civil Engineering Study Program, Faculty of Engineering, University of Medan Area, Indonesia Abstract Land is an important element of the structure underneath a construction, so that the soil must have
Details
Keywords: Deep Cement Mixing, Soil Improvement, PLAXIS 3D, Soft Soil. 1. INTRODUCTION . In modern times, there is an increasing number ... Mixture of cement and gypsum . N < 6. In the past, lime was the only binding material used to stabilize and repair soft soil, but since the
Details
Table 1. Classification of Soil According to the Unconfined Compression Test - "Comparison of the Use of Cement, Gypsum, and Limestone on the Improvement of Clay by Using Unconfined Compression Test" ... Soil stabilization is an effort to improve soil properties by adding additives in the soil to increase the soil strength and maintain the ...
Details
In other words, substituting Portland cement with 25% gypsum can result in the lower amount of strength after four weeks of curing under both low and high temperature. This can significantly reduce the cost of the soil improvement operations since gypsum is more cheaply available than Portland cement.
Details
Titanium gypsum (TG) is a industrial gypsum produced during the manufacture of titanium dioxide (TiO 2) by the sulphuric acid process, after neutralisation of the acid waste solution with lime or calcium carbide slag (Zapata-Carbonell et al., 2019, Zhai et al., 2020).At present, every 1 ton of TiO 2 produced in China generates about 6 ton of TG (Ma, 2022a, Su …
Details
This research work mainly focuses on soil stabilisation using cement to improve geotechnical properties such as plasticity, compaction, …
Details
It defines soil stabilization as treating soil to maintain or improve its performance. Key techniques include mechanical stabilization by blending soils, and chemical stabilization by adding lime, cement or other chemicals. ... it has a vary high load spreading property. Thus soil-cement is able to spread the load over a wider area and bridge ...
Details
The use of cementitious materials to improve clay is a common technique in engineering. However, the effectiveness of these materials, particularly desulfurized gypsum, …
Details
The strength of cement-soil mixing piles with gypsum is larger than that without gypsum in soft ground treatment. In order to explain this phenomenon, a series of micro-experimental studies on chemical and physical microstructure of cement-mixed soils with and without gypsum in addition to undisturbed soils on a soft ground are conducted by using X-ray diffraction (XRD) and …
Details
Silt in the Yellow River alluvial plain is widely spread, but its uniform particle size and high roundness make it unsuitable as a subgrade filling material, while titanium gypsum (TG) is an industrial solid waste in Shandong …
Details
The deep soil mixing method (DSM) is known as a reliable and cost-efficient method of ground improvement which has been studied in great detail for peat stabilisation. The method has gained popularity for peat soil because of its improvement and broad applicability. The study aims to review the published literature focusing on small-scale and 1 g physical …
Details
This study investigates the effect on the mechanical properties of cement-stabilised silty soft soil (CSS) using nano-gypsum (NG). Unconfined compression strength (UCS) test trials were conducted ...
Details
Pandey [7] explored the geotechnical properties and compressive strength improvement of soil through cement stabilization, ... Stabilization of expansive soil with rice …
Details
The introduction of new Portland clinker-based cement alternatives, use of alkali-activated materials, and improvement of efficiency of cement use could further contribute to reduction goals.
Details
The effect of NG and cement on soft soil was investigated by performing Atterberg limit, compaction, UCS, and Direct shear tests. The soil was treated with four percentages …
Details
1. Concentrations of potential contaminants cannot exceed maximum allowable concentrations listed in table 1. In addition, the radium-226 concentration in the gypsum-derived product …
Details
In addition, the deformation characteristics of the soil improve with increasing perimeter pressure, which is manifested as a smaller shear strain inducing a larger shear modulus. ... Effect of nano-gypsum on mechanical properties cement admixed marginal silty soil. Constr. Build. Mater., 408 (2023), Article 133639. Google Scholar. Hardin and ...
Details
D.R Known sometimes as Dynamic Sand Columns, it is a soil Improvement technique and can be considered as an extension of Dynamic Compaction to the non compressible soils like soft clays, silt, sabkha….Dynamic Sand Columns method combines the advantages from both ... Shotcrete or sprayed concrete is a cement mortar that contains no coarse ...
Details
The following factors affect the cement stabilization of soil: Type of soil; Quantity of cement; Quantity of water; Mixing, compaction and curing; Admixtures; Additional Information. Soil Stabilization: It is also known as soil improvement. It is defined as the process of alteration of properties of soil to improve its engineering performance.
Details
Gypsum helps improve soil structure by reducing compaction in clay soils and enhancing water infiltration. It also provides calcium and sulfur to the soil. ... Why is 5 percent of gypsum added in cement? Gypsum is added to cement to control its setting time and prevent flash setting. Typically, only a small percentage (usually less than 5%) of ...
Details
The third segment which refers to creep collapse depends on the gypsum content. Gypseous soil with low gypsum content (14.8%) exhibited significant decrease (5.21% at 24 hours to 7.16% at 60 days ...
Details
The use of cement as a soil stabilization agent is one of the common solutions to enhancing the engineering properties of soil. However, the impact and cost of using cement have raised environmental concerns, generating much interest in the search for alternative materials to reduce the use of cement as a stabilizing agent in soil treatment. This study looked into …
Details
Sofol is a well-known crusher and grinding mill manufacturer that offers equipment and solutions for customers from aggregates, mining and mineral grinding industry.
You can leave your message here, we'll send you an Email immediately.
Online ChatCopyright ©2000- 2024 Shanghai Sofol CompanySitemap
PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
GET QUOTE