To respond to the rapid introduction and development of calcined clays as supplementary cementitious material (SCM), the toolbox of characterization methods for cementitious materials requires extension to raw clay characterization. Borrowing concepts and methods developed in the field of clay mineralogy, this paper outlines the merits …
This paper presents a micromechanical description of the swelling behavior of partially saturated clays following a two-stage homogenization procedure on a three-dimensional Representative Elementary Volume (REV) of clay. At the nano-scale, the REV of clay particles includes idealized parallel clay platelets and oblate spheroidal pores in …
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In cheese making, homogenization of cheese milk leads to a firmer cheese with less free oil formation compared to non-homogenized cheese milk (Rowney et al., 2003a) and is therefore a promising pre-treatment to produce cheese from …
Semantic Scholar extracted view of "Homogenization in clay barriers and seals: Two case studies" by A. Gens et al.
The valve geometry, pressure level, inlet temperature, and the number of homogenization cycles are all factors affecting the level of microbial inactivation and the extent of the techno-functionalities of food biopolymers and matrices. Turbulence, high shear, cavitation, and temperature increase induced by (U)HPH treatments enhance emulsion ...
The effect and its mechanism of pre-homogenization of as-extruded Mg Y alloys on mechanical and corrosion properties are investigated by the tensile and compressive tests, immersion, and electrochemical tests.
High-pressure homogenization is based on the principle of high-pressure gradient turbulence. The strong shearing forces are produced due to depressurization of highly compressed sludge suspensions at the pressure of 900 bar ( Fig. 7.3 D) [41]. This process breaks cell membrane, sludge flocs, and releases the intracellular substances.
The primary cement manufacturing process involves the mining of raw materials, mainly limestone and clay, which are used in cement manufacturing. In most of the cases, the limestone and clay are excavated from open cast mines by drilling and blasting and other appropriate processes in mines.
A compression model was formulated within the homogenization framework. First, a homogenization equation was proposed, which gives a relationship between the overall stiffness E and that of the clay matrix Ec. Then, a model parameter ξ was incorporated considering the sensitivity of the structure parameter on the volume fraction of the clay ...
The Pengfei EPC cement production line project includes services such as process design, equipment supply (including mechanical and electrical parts), civil engineering, installation and commissioning, trial operation, reaching production standards, and final delivery. Mechanical equipments include limestone crushing and conveying, clay …
Raw meal system includes limestone crushing section, pre-homogenization storage shed, raw meal grinding mill & raw meal silo, etc.
Semantic Scholar extracted view of "Experimental and theoretical investigation on the compression behavior of sand-marine clay mixtures within homogenization framework" by X. Shi et al.
We compared the agreement between pre-processing tissues using tissue homogenizer with routine microbiology diagnostic procedure, and we calculated the performance of these methods when clinical infections were used as reference standard.
This backdrop thus motivates us to adopt a pre-trained transformer model as an efficient surrogate for modeling history-dependent behavior of composites, incorporated into a multiscale homogenization framework.
For clay, extraction is most often done by direct excavation (on the surface). The pre-homogenization of the clay is done on the same site of excavation.
Limestone after pre-homogenization, clay and iron will be mix together, with a certain percentage by belt weigher. Then, the mixture will be send to ball mill for primary grinding by belt conveyor, then convey to top of homogenization silo and discharge evenly, take pre-homogenization for second times.
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Limestone after pre-homogenization, clay and iron will be mix together, with a certain percentage by belt weigher. Then, the mixture will be send to ball mill for primary grinding by belt conveyor, then convey to top of homogenization silo and discharge evenly, take pre-homogenization for second times. ...
The paper deals with the numerical homogenization of polymer/clay nanocomposites by using the boundary element method (BEM). The reinforcement has the form of stacks of parallel clay sheets modelled by effective isotropic particles. Two-dimensional representative volume elements (RVEs), containing randomly distributed parallel …
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It is expected that homogenization process will take place over time for the structure constructed with pre-compacted blocks upon hydration. This study investigated the boundary friction effect on ...
Cement clinkering process quality assurance demands specific chemistry and consistency of the kiln feed for a stable operation. This brings to focus the importance of the Blending and Homogenizing process. The proper choice of equipment and operating strategy play an equally important role promoting homogenization.
A homogenization approach was introduced to estimate the overall hydraulic conductivity that could be determined from the intrinsic permeability parameters of pure marine clay. The proposed model has four parameters, including two intrinsic parameters of the pure marine clay and two additional ones incorporating the evolution …
The macroscopic model governing coupled electro-chemo-mechanical phenomena in expansive clays is revisited within a rigorous homogenization procedure applied to the microscopic governing equations which describe the local interaction between charged clay particles and a binary monovalent aqueous electrolyte solution. The up-scaling of the …
Exploring pollen records from 13 South Pacific islands, the authors find that floristic homogenization commenced following human arrival beginning around 3,000 years ago.
Cement Manufacturing Process. Summary： In brief, cement production has the following 7 steps: crushing and pre-homogenization, raw meal preparation, homogenization of raw meal, preheating decomposition, firing of cement clinker, cement grinding and cement package. Cement is a powdery hydraulic inorganic cementing …
Based on the analyses of mineralogical compositions by X-ray diffraction and microstructure by optical microscopy, the Young' modulus and hardness of a claystone were characterized by the nano-indentation technique and homogenization method. Three distinct microstructural zones are identified in the claystone: clay matrix, a composite …
The modelling of hydromechanical behavior of clayey sediments by homogenization theory is described. The rheological model of clays buried in depth requires a three-dimensional approach and laboratory experiments to quantify the model parameters. An iterative process which can be coupled to any homogenization method …
Homogenization (BLENDING) In preparing raw meal, raw materials like limestone, clay and iron ore are proportioned and fed to raw mill, where these raw materials are ground and well mixed. However, this mixing is not enough to produce clinker of uniform quality.
paper focuses mainly on the identification and quan-tification of the raw clay mineral components, as these characteristics have important implications for further material processing and performance. General notes are provided on clay sampling and pre-treatment as well as bulk chemical analysis.
The effect of a novel pre-homogenization deformation (PHD) treatment on the microstructure and mechanical properties of extruded AlMg5Si2Mn alloy was investigated. By introducing the cold compression prior to homogenization treatment, the brittle and interconnected eutectic Mg 2 Si phase in the as-cast AlMg5Si2Mn alloy …
Behavior and Modeling of Fiber-Reinforced Clay under Triaxial Compression by Combining the Superposition Method with the Energy-Based Homogenization Technique
Mechanical equipment includes limestone crushing and conveying, clay crushing, raw coal crushing, raw coal and auxiliary raw material pre homogenization yard, raw material proportioning station, raw material grinding and waste gas treatment, raw material homogenization silo and raw material feeding into kiln, firing kiln tail, firing kiln ...
The homogenization process can be divided into two stages: raw material homogenization and raw meal homogenization. The homogenization of raw materials occurs during the stage of raw material handling, with the objective of equalizing the composition of raw materials such as limestone, clay, and iron ore.
The constitutive model has to be representative of the clay behavior, whereas the numerical strategy should be efficient in order to reduce the computation time. To simulate undrained triaxial cyclic tests on clay, a method of time homogenization is applied to a bounding surface plasticity model.
