قائمة الطعام
Abstract. Blast fragmentation efficiency prediction can improve blast productivity, but it is capital-intensive when done with a vail. able software. Soft …
It was found that the optimum adsorption capacity and strength can be achieved with the proportion of 4.90 g dolomite, 3.12 g bentonite, 1.48 g sawdust, and 0.50 g AlCl3 (10 g in total).
agent. Dolomite coarse aggregate can also be used for per-meable concrete production [51]. Sernas et al. [52] used dolomite as aggregate in the asphalt mix for pavement and found promising results. The sand brick can also be made by using dolomite quarry waste as a sand replacement at 0%, 25%, 50%, 75%, and by the weight of sand con …
Optimum drill hole diameter was observed as 89 mm and bench design parameters such as spacing 2.5 m, burden 2 m, specific charge 0.97 kg/m 3 were proposed according to this value.
Optimizing acid fracture design in dolomite formations. Acid fracture optimization consists of selecting the design parameters (e.g., injection rate, type of …
Section snippets Materials. The binder used in this work includes ordinary Portland cement and AE. The properties of the cement were tested according to the standard Testing Methods of Cement and Concrete for Highway Engineering (JTG 3420–2020); and the results are shown in Table 1. AE was prepared in the laboratory, …
In the paper analysis the conditions have been conducted and the concept of revitalization of dolomite quarry Górnicze Zakłady Dolomitowe S.A. has been proposed.
This study was carried out in quarry site at Ogbere town located at Ijebu-North Local Government Area of Ogun State; with main aim of assessing the impact of the quarry activity on bio-diversity ...
test setup at dolomite stone quarry, and the obtained results ensure the optimum fragmentation results,the PPV ranges from 0.88 to 15.5 mm/s at different monitoring locations and
In this research, we cut a dolomite block from a Silurian formation in Thornton Quarry, Illinois. This block was drilled into core samples with dimensions of 1.5-in. diameter by 8-in. long.
[Show full abstract] textural inter-relationships between dolomite and quartz in this sandstone demonstrate that the ridges result from the growth of authigenic quartz along narrow pore spaces ...
Abstract. The effects of the addition of dolomite-based quarry-dust (QD) waste material as a filler in CEM-I and FA-based geopolymeric mixtures were studied. This study shows that unused QD may be ...
To address this, we investigated the effects of fertilizers and organic amendments comprising different combinations of NPK urea, dolomite, and manure-based compost on soil properties and cocoa ...
Optimum Acid-Fracturing Treatments for Ultradeep Limy Dolomite Reservoirs Based on Conductivity Tests ... Production streams can be obtained from wells with no depletion productivity after acid-fracturing . ... Rocks from the Lower EM formation in which the dolomite content can range from 3 to (average 32.15%) …
The present study focuses on utilizing stockpiled dolomite quarry waste for sustainable and cleaner production of concrete. Natural river sand is substituted with dolomite quarry waste at 0, 10, 20, 30, 40, 50, 60, 70, 80, 90, and in concrete mixes. The test findings revealed the concrete mix made with 10% dolomite quarry …
The design of experiments is first carried out using a standard Taguchi orthogonal array consisting of five factors viz. total cement replacement level, dolomite to binder ratio, slag to fly ash ...
Based on analyzing the difficulties of dolomite reservoir treatment and the mechanism of different stimulation methods, the corresponding optimal stimulation method is proposed, the mathematical model of ultra-deep reservoir productivity is established, and the optimization design of injecting process, parameters, and acid fracturing …
Simulating this modified design, we found that the productivity achieved was reduced to around 0.31, less than the optimum value of almost 0.4, but still a two-fold productivity increase. This modified the design results to produce a much higher level of productivity than if the acid injection was maintained at 20 bpm for the entire treatment ...
Abstract. Acid reactivity with dolomite is more sensitive to temperature as compared to calcite formations, resulting in different dissolution profile. Acid fracture …
A machine learning approach was used in this study to optimize explosive use in small-scale quarries. This study employed data from a small-scale dolomite quarry in Akoko Edo, Nigeria, for artificial neural network (ANN) modeling and uniformity index model creation (10 production blasts and 38 blast record datasets).
Abstract. The effects of the addition of dolomite-based quarry-dust (QD) waste material as a filler in CEM-I and FA-based geopolymeric mixtures were studied. This study shows that unused QD may be integrated at high replacement rates (up to 40% by weight) in both CEM-I and FA-based systems, showing good and, in some cases, even …
Golden Dolomite Quarry is located at Ikpeshi and its environs in Akoko Edo, Edo State which lies within latitudes 7°08'N to 7°10'N and
ABSTRACT-The purpose of this work is to describe the effect of quarry dust and dolomite on the compressive strength of concrete. The present examinations indicate that dolomite may be used as partial replacement of cement in concrete and quarry dust may be suitably replaced with fine aggregate in concrete to some extent.
Dolomite Quarry Sdn. Bhd. is a leading supplier of Quarry in Malaysia. Being a Company that was established in 1989, we have 28 years of experience in Quarry industry which make us as one of the prominent quarry Company in the country. 2018 Price List Pricing Effective March 2018.
The findings show that apart from the influence of blast design such as burden, powder factor, spacing, depth, and stemming length, highly fractured rock with …
Ten production blasts and 38 blast record datasets from a small scale dolomite quarry in Akoko Edo, Nigeria were studied to determine the effect of powder factor on blast fragmentation size ...
Therefore, the proposed ANN models can be used to improve the productivity of small-scale dolomite blasting operation results for practical purposes. Discover the world's research 25+ million members
high-performance concrete compositions with maximum content of dolomite quarry by-products. 2 Materials and Methods Experimental samples of dolomite by-product …
dust and Dolomite along with Fly ash. The available published literature on Dolomite, Quarry dust and Fly ash is reviewed. Kamal M.M, et al (2012) (1)evaluated the bond strength of self compacting concrete mixes containing dolomite powder. Either silica flume or fly ash was used along with dolomite powder to increase the bond strength …
Improvement of small-scale dolomite blasting productivity: Comparison of existing empirical models with image analysis software and artificial neural network …
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