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161
Evaluation of phosphate sources using ruminal fiber transit kinetics methodology
Published 2025-01-01“…The treatments were: negative control (NC) without supplementary phosphorus; dicalcium phosphate from igneous rock with sulfuric acidulation, neutralization with limestone, and the show physical form of microgranules (ISLG); Dicalcium phosphate from igneous rock with sulfuric acidulation, neutralization with hydrated lime, and the physical form of powder (ISLhP); Dicalcium phosphate from sedimentary rock with hydrochloric acidulation, neutralization with limestone, and the micro-granulated show physical form (SeCLG); Dicalcium phosphate from the monocalcium phosphate and hydrated lime reaction adjusted with phosphoric acid, and the powder physical form (MLhPaP). …”
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162
Study for the Influence of Mineral Admixtures on the Workability of Self-compacting Concrete
Published 2021-01-01“…As the most important performance of self-compacting concrete (SCC),the workability has been studied extensively and deeply.In addition to high sand ratio and low water-cement ratio,mineral admixtures also have a great impact on the workability of SCC.In order to promote the use and development of SCC,after consulting a large number of domestic and foreign documents,this paper summarizes the use and research status of mineral admixtures in SCC in recent years,reviews the influence of different mineral admixtures on the workability of SCC,and specifies their mechanism.Generally speaking,common admixtures such as fly ash,slag,silica fume and limestone powder can improve part of the workability of SCC,and the main mechanism includes the “morphological effect”,“water reducing effect” and “volume effect” of these admixtures.However,there are few studies on the effects of mineral admixtures such as copper slag,waste glass slag,bagasse ash,pumice powder and lithium slag on the workability of SCC,so they are still in doubt,and need to be further studied.…”
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163
Application of Electrical Resistivity Tomography Technique for Characterizing Leakage Problem in Abu Baara Earth Dam, Syria
Published 2014-01-01“…The analysis of the inverted ERT sections revealed the presence of fractured and karstified limestone rocks which constitute the shallow bedrock of the dam reservoir. …”
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164
A Multi-Disciplinary Review of Current Sea-Level Rise Research in Florida
Published 2013-02-01“…Sea-level rise is an issue of paramount importance for the state of Florida due to its lengthy coastline, low relief, high coastal population density, ecologically and economically vital beaches, estuaries, and wetlands, and porous limestone geology. The rate of sea-level rise in Florida generally follows the global average (~3 mm per year) and is slowly gaining public attention as a significant threat to the natural and socioeconomic future of the state. …”
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165
Un habitat groupé antérieur au xiie siècle préservé sous forêt : le site de Goa (Val-Suzon, Côte-d’Or)
Published 2019-09-01“…The forest context makes it possible to observe and analyze the parcels of land around the houses, which extends over a wide limestone plateau. All such data allow discussing the overall landscape evolution from rural settlement to forest reconquest during the key-period of the 11-12th centuries.…”
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166
The Use of Lime in Fish Ponds
Published 2013-08-01“…However, lime is casually used to describe two different types of materials, used for very different purposes. Agricultural limestone refers to calcite (calcium carbonate) and dolomite (calcium magnesium carbonate). …”
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167
Des pieds de moutons dans la citerne du sanctuaire de Corent (Veyre-Monton, Puy-de-Dôme) : rejet détritique ou dépôt rituel ?
Published 2014-03-01“…Everything seems to show that once this act was done, the tank was quickly filled in, and then sealed by an impressive limestone slab. The zooarchaeological study reveals that despite their anarchic position at the bottom of the structure, these legs are divided equally between forelimb and hindlimb and between left and right. …”
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168
The Use of Lime in Fish Ponds
Published 2013-08-01“…However, lime is casually used to describe two different types of materials, used for very different purposes. Agricultural limestone refers to calcite (calcium carbonate) and dolomite (calcium magnesium carbonate). …”
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169
THE INVENTORY AND HIERARCHY OF GEOMORPHOSITES IN THE VLĂDEASA MASSIF
Published 2012-12-01“…The karst geomorphosites are all situated in the limestone area of the massif, the Stanciului Valley. …”
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170
A new species of Cyrtodactylus Gray, 1827 (Squamata, Gekkonidae) from Yunnan Nangunhe National Nature Reserve, China
Published 2025-01-01“…Cyrtodactylus zhenkangensis inhabits karst limestone, while the new species inhabits forest. The new species is the 29th species of the C. chauquangensis group and the third forest-dwelling species of this group.…”
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171
Faunistic survey of terrestrial isopods (Isopoda: Oniscidea) in the Boč Massif area
Published 2014-06-01“… In 2005, terrestrial isopods were sampled in the Boč Massif area, eastern Slovenia, and their fauna compared at five different sampling sites: forest on dolomite, forest on limestone, thermophilous forest, young stage forest and extensive meadow. …”
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172
CaCO3–Polymer Nanocomposite Prepared with Supercritical CO2
Published 2018-01-01“…The flexural strength of the nanocomposite was larger than the flexural strengths of limestone and CaCO3 produced by hydrothermal hot pressing. …”
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173
Study on Influencing Factors of Asphalt-Aggregate Stripping Mechanism
Published 2021-01-01“…It can be concluded that the mass loss of asphalt film is minimal with limestone and modified asphalt, which shows that it has the best spalling resistance.…”
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174
Effect of Curing Time on the Surface Permeability of Concrete with a Large Amount of Mineral Admixtures
Published 2022-01-01“…Under the condition of insufficient standard curing time, adding a small amount of limestone powder can effectively enhance the chloride ion permeability of concrete with a large amount of fly ash and slag.…”
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175
Estimation of parameters for 3D geomechanical modeling from triaxial test results
Published 2025-03-01“…The proposed methodologies are demonstrated using limestone specimens from Central Asian gas fields. …”
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176
Formulation and characterisation of micro and macro polypropylene fibre reinforced mortar
Published 2022-05-01“…The work is carried out on mortars, using limestone crushing sand, composite cement and synthetic fibres. …”
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177
Study of the Hydration Mechanism of Portland Cement with Raman Spectroscopy Applying CO2 Laser Radiation
Published 2023-01-01“…The detected band of calcium carbonate, which is due to the incorporation of limestone during the grinding process, shows that it is responsible largely for the acceleration in the reactions during the hydration of the cement. …”
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178
Laboratory Investigation of Fatigue Characteristics of Asphalt Mixtures with Steel Slag Aggregates
Published 2015-01-01“…It was found that replacing the 50% of the limestone coarse or fine aggregate by SSA improved the mechanical properties of the AC mixes.…”
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179
Jurassic Marine Crocodiles in the Monts d’Ardèche UNESCO Global Geopark
Published 2021-09-01“…This includes a sedimentary boundary between the Jurassic and Cretaceous, represented by limestone and marl. Fossils of crocodilians have been discovered in these layers, highlighting the diversity of past marine environments. …”
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180
Analysis of Landslide Motion Characteristics Based on UDEC: A Case Study of the Landslide in Shiban Village,Ganlong Town,Songtao County, Guizhou Province
Published 2023-01-01“…On July 8,2020,a landslide occurred in Shiban Village,Ganlong Town,Songtao County,Guizhou Province,causing casualties and diverting the river below.Through field investigation and section measurement,the development characteristics and formation mechanism of the landslide are analyzed.In addition,the motion characteristics of the landslide are simulated by the discrete element program UDEC to restore the deformation and failure process of the landslide from start-up to river blocking.The time-effect displacement curves of different parts of the landslide are obtained.The conclusions are as follows:The landslide is produced under the comprehensive action of unfavorable topography and geomorphology and formation lithology combination,rock mass structure,rainfall,and human engineering activities.The sliding surface is the contact surface of marlstone and coarse-grained limestone.The formation process of the landslide can be divided into three stages:leading-edge slip-trailing-edge crack,whole slippage,and collision accumulation.The landslide has a violent starting effect,and the maximum start-up rate can reach 5.24 m/s.The displacement and deformation rates of the trailing edge lag behind those of the leading edge,and the maximum horizontal displacement of the landslide is 217.5 m.…”
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