Dolomite Powder in Concrete: A Review of Mechanical …
This review paper has discussed the use of dolomite powder in concrete and their effects. Furthermore, the paper has examined the origins and uses of …
Performance and Microstructure of Calcined Dolomite and …
AbstractThis study investigates the performance and microstructural development of reactive MgO and calcined dolomite-based concrete samples subjected to carbonation curing for up to 28 days. ... "Effects of fly ash and dolomite powder on the properties of self-compacting concrete." ... School of Civil and Environmental …
Study of advanced dewatering and its influence on tunnel in …
The influence of groundwater on sandy dolomite stratum renders it highly susceptible to disasters, resulting in frequent water inrush accidents during tunnel construction. Advanced dewatering is crucial in enhancing tunnel face stability. It is found that sandy dolomite comprises a porous permeable medium consisting of dolomite …
Environmental Impacts of Dolomite Sand on the …
Dolomite is a naturally occurring mineral and has a low carcinogenic level to humans. However, this can be amplified in the food chain through other marine species. Furthermore, long exposure to this mineral can lead to respiratory problems which have been reportedly observed in dolomite miners5. The washing off of dolomite sand from …
Study on Construction and Reinforcement Technology of …
The WDPCY-based in-depth theoretical and practical research on the dolomite sanding mechanism, engineering geological characteristics, engineering …
Segmented Fractal Pore Structure in Cement-Based …
In this study, the pore size range of cement-based materials containing dolomite powder was regularly segmented to characterize the scale-dependent fractal nature of the pore structure. The relationship between the segmented fractal dimension and the compressive strength was discussed.
Impact of geological origin on flotation separation of …
1. Introduction. Phosphate is considered as an important and useful mineral resource that cannot be replaced or recycled in agriculture and its related fields (Cao et al., 2015, Oliveira et al., 2019, Sis and Chander, 2003).Actually, it was reported that about 80% of the phosphate ores exploited around the world is applied to generate phosphoric acid, …
Temperature impact on linear and radial wormhole …
Journal of Natural Gas Science and Engineering. Volume 93, September 2021, 104031. Temperature impact on linear and radial wormhole propagation in limestone, dolomite, and mixed mineralogy ... Simulated acid efficiency curves in dolomite showing the impact of dolomite fraction. Download : Download high-res …
Effects of Hydrochloric Acid on the Mechanical and Elastic …
Corpus ID: 216565649; Effects of Hydrochloric Acid on the Mechanical and Elastic Properties of Tight Dolomite @inproceedings{Gou2019EffectsOH, title={Effects of Hydrochloric Acid on the Mechanical and Elastic Properties of Tight Dolomite}, author={Bo Gou and Zeng Mingyong and Jianchun Guo and Jie Lai and L. J. Zhuang and Huiyun …
Evaluation of groundwater effects on tunnel engineering …
Tunnels are commonly constructed in loess with a high water content or saturation degree, which can lead to large ground deformation, structural cracking, and even tunnel collapse during construction, in addition to tunnel leaks, sidewall settlement, and frost damage. A complete understanding of the distribution, source, and effects of …
(PDF) A Technical Analysis on the Manila Bay Dolomite
A T echnical Analysis on the Manila Bay. Dolomite Beach Reclamation Project. Mark Angelo C. Bucay, T ara Alessandra S. Abrina, Jelaine L. Gan, and Maria Finesa Cosico. Introduction. Manila Bay is ...
An experimental study of the effects of bacteria on …
The adsorption amount of asphaltene 2 after the impact of moderate thermophilic bacteria for quartz increased from 0.5 to 1.36 mg/g and for dolomite increased from 0.79 to 1.58 mg/g.
Thermodynamic and Kinetic Studies of Dolomite …
Dolomite is widely developed in deep-time marine carbonate rocks [4,5]. Although modern seawater is supersaturated with respect to dolomite [6], dolomite is a …
Prospects for Effective Use of Dolomite in …
Use of dolomite powder decreases in the cost of concrete. D. The characteristic of dolomite such as Endothermic was found out at 810 o C because of CaMg (CO3) 2 and Endothermic effect found out ...
An experimental study of the effects of bacteria on …
An experimental study of the effects of bacteria on asphaltene adsorption and wettability alteration of dolomite and quartz ... 1 Department of Petroleum Engineering, Shahid Bahonar University of Kerman ... Fourier-transform infrared spectroscopy (FTIR) analysis for quartz and dolomite samples demonstrated that after …
Study on Viscoelastic Constitutive Model of Bedded Dolomite …
3.1 Classical Viscoelastic Constitutive Model (VECM). In this paper, the classical calculation model of bedded dolomite cascades the Kelvin model and the perfect elastomer; its component composition is shown in Fig. 4.In Fig. 4, σ is total external stress, E 1 is the elastic modulus of the No. 1 material, η 2 is the viscosity coefficient of the No. …
Mineralogy Impact on Acid Fracture Design in Naturally …
The impacts of a natural fracture on the propagation of a hydraulic fracture has been extensively studied in the past decade. However, there were only minor attempts to understand the impact of natural fractures on acid distribution during acid fracturing. This study provides an understanding of the impact of natural fractures on acid fracturing …
PRACTICES OF DOLOMITE APPLICATION IN THE …
The application of dolomite when producing construction materials allows solving problems of rational approach to natural resources and reducing the ecological load on the …
The effect of weathering on drillability of dolomites
This study aimed to investigate the effects of variations in DRI and physicomechanical and weathering properties of dolomite rocks. Initial observations, physicomechanical …
Effects of dolomitization on porosity
Replacement of D1 dolomite before the onset of chemical compaction, as suggested by cross-cutting of early dolomite by low-amplitude stylolites (Fig. 6 A), very fine-crystalline texture, the high Sr and low Fe (1273.7) and Mn (50.7) contents (Fig. 11 d; Table 3), well-preserved precursor limestone textures (Fig. 6 B), and presence of nodular ...
Effects of freeze-thawing cycles on the physical and
Basalts from Çorlu Karatepe and dolomite from Kırklareli subjected to freeze-thawing (F-T) cycles were studied, and the resulting changes were analyzed. The unweathered rocks and those subjected to 50 F-T cycles after every 10 cycles were tested for the water absorption by weight and volume, P-wave velocity, uniaxial compression …
Effects of calcined dolomite on the fluidized bed pyrolysis …
DOI: 10.1021/I200030A035 Corpus ID: 95612605; Effects of calcined dolomite on the fluidized bed pyrolysis of a Colorado oil shale and a Texas lignite @article{Floess1985EffectsOC, title={Effects of calcined dolomite on the fluidized bed pyrolysis of a Colorado oil shale and a Texas lignite}, author={Joachim K. Floess and …
Environmental geological aspects of the dolomites of South Africa
This development has great impact on the dolomitic environment and vice versa. The most important environmental aspects which influence Man's occupation of the dolomite environment include the formation of sinkholes and dolines (compaction subsidences) and also the potential pollution of the dolomite aquifers.
Geoenergy Science and Engineering
1. Introduction. More than 60% of the reservoirs in the world are carbonates (Motta et al., 2021), and acidizing is widely used as one of the most effective techniques for carbonates remove the formation damage and improve the flow ability of oil and gas (Zhou et al., 2020; Su et al., 2022).Carbonate rocks are sedimentary rocks composed of …
New insights into the dolomitization and dissolution
Herein, the GCS potential and the effects of boundary dissolution on calcite and dolomite were investigated based on both analytical and simulation methods such as molecular dynamics simulation (MDS) and density functional theory (DFT) calculations, to deeply unveil the mechanisms of dolomitization and formation of intergranular secondary …
Correction to: The influence of crystal size of dolomite on engineering
Bulletin of Engineering Geology and the Environment - Correction to: The influence of crystal size of dolomite on engineering properties: a case study from the Rus Formation, Dammam Dome, Eastern Saudi Arabia
Temperature impact on linear and radial wormhole …
dolomite, but they did n ot explicitly investigate the temperature impact. As mentioned earlier, the effect of temperature is more pronounced in reaction-limited cases (i.e., dolomite).
Dolomite Powder in Concrete: A Review of Mechanical …
Civil Engineering and Architecture 11(6): 3314-3321, 2023 3317 . and ultimately set up more slowly [22]. Concrete mix with dolomite powder added shows improvement in workability and provides the proper required slump flow [23]. Dolomite powder improves the performance of the self-compacting mortar modified with slag …
IMPACT OF QUARRY DUST & DOLOMITE POWDER ON …
Professor & HOD, Dept of Civil Engg, YSR Engineering College of YVU, Prodattur, A.P. Dr. C. Sashidhar3, Director, Industrial Consultancy Services, JNTUA, Anantapur, A.P. ABSTRACT-The purpose of this work is to describe the effect of quarry dust and dolomite on the compressive strength of concrete.
Effects of Metal Ions on the Flotation of Apatite, Dolomite …
The effects of Ca2+, Mg2+, Al3+, and Fe3+ on the flotation behaviors of apatite, dolomite and quartz were investigated through a micro-flotation test, and the influence of calcium ions on the flotation of these minerals was further elucidated by solution chemistry study, zeta potential measurement, and X-ray photoelectron spectroscopy …
The Dolomite Beach Issue (2022 Update) | Project Goals
Photo by: China D @projectgoals.ph. Thousands attended the opening of Dolomite Beach in September 2020, when it was just a layer of sand, and again in 2021 with the crushed dolomite surface. Just like the rehabilitation program itself, the opening occurred in the middle of the pandemic.
The influence of crystal size of dolomite on engineering
The results suggest that textural factors have a greater influence on the engineering properties of dolomite than mineralogical composition. It was also revealed that the crystal size (fine to coarse) is a textural element and that it has a significant …
Effects of promoters on biomass gasification using nickel/dolomite
Metallic nickel has been selected as a catalyst for biomass gasification because of its activity in biomass steam gasification and tar reduction. The effects of types of promoters such as platinum, cobalt, and iron on biomass gasification were evaluated. The area of interest was the effects of preparation methods, which were impregnation …
Several Studies Show Harmful Effects of Dolomite on …
The document says that dolomite (a.k.a. crushed stone, calcium magnesium carbonate, and other aggregates) has the following hazard statements: "may cause cancer," "may cause damage to organs (lung) through prolonged or repeated exposure," "causes skin irration," and "causes serious eye irritation." It also pointed out that dolomite is a ...
The influence of crystal size of dolomite on engineering …
The results of this study verify that surface conditions with low temperature and pressure are unsuitable for the development of dolomite, but microbes may produce small dolomite nuclei, leading ...
Effects of fly ash and dolomite powder on the properties of …
DOI: 10.1016/J.CONBUILDMAT.2011.03.018 Corpus ID: 136840275; Effects of fly ash and dolomite powder on the properties of self-compacting concrete @article{Barbhuiya2011EffectsOF, title={Effects of fly ash and dolomite powder on the properties of self-compacting concrete}, author={Salim Barbhuiya}, …
The effect of dolomite amendment on soil organic carbon …
Background The size of lime material is vital for the efficiency of ameliorating soil acidity, thereby influencing soil biochemical processes. However, the effects of different sized lime material application on soil organic carbon (SOC) mineralization are yet to be elucidated. Therefore, a 35-day incubation experiment was conducted to determine the …
Geoenergy Science and Engineering
Limestone and dolomite contribute differently to wormholes propagation at different temperatures. • Dolomite can increase the complexity of wormholes at low …
Geotechnical And Dolomite Investigation
Crysbol consulting provide wide range of geotechnical engineering, dolomite investigation and soil/rock testing services. No matter what the task small or large, simple or complex we take on every challenge and find the most efficient and cost-effective solution. We specialise in identifying opportunities for value-added service and constantly ...