Pub Date : 2022-01-01DOI: 10.14382/epitoanyag-jsbcm.2022.19
Sahra Mahi, Labri Hammadi, N. Boudjenane
{"title":"Effect of clay concentration on the mechanical properties and rheological behavior of ceramic slip","authors":"Sahra Mahi, Labri Hammadi, N. Boudjenane","doi":"10.14382/epitoanyag-jsbcm.2022.19","DOIUrl":"https://doi.org/10.14382/epitoanyag-jsbcm.2022.19","url":null,"abstract":"","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"83 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72819865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14382/epitoanyag-jsbcm.2021.14
E. Ambrose, F. Okafor, M. Onyia
Ceramic industry generates a large amount of wastes which are presently not reused in any significant quantity. Reusing these wastes in concrete could solve the ceramic industry waste management problem and also lead to a more sustainable concrete industry. While the use of ceramic wastes as coarse aggregate has been extensively investigated, not much findings are available on its use as fine aggregate and there are presently no models for predicting the properties of ceramic wastes aggregate concretes. This study investigates effect of crushed recycled-ceramic tiles (CRT) fine aggregate content on compressive strength of concrete. Scheffe’s second degree polynomial models were also formulated for compressive strength, slump height and cost of CRT concrete. Results show that incorporation of CRT as fine aggregate improves the compressive strength of concrete and this increase is directly proportional to its content. Authors therefore recommend up to 100% replacement of conventional fine aggregate with CRT in concrete production. The formulated models could predict compressive strength, slump and cost of CRT concrete if the mix ratio is known and vice versa. Analysis of variance and normal probability plots of model residuals were used to test adequacy of the models, and the models were found to be adequate at 95% confidence level. With the model equations, sample optimization was carried out to obtain the most economical mix for certain predefined criteria and the results were promising. Several similar optimizations can be carried out using the formulated model equations for any desired criteria of the modeled responses.
{"title":"Compressive strength and Scheffe’s optimization of mechanical properties of recycled ceramics tile aggregate concrete","authors":"E. Ambrose, F. Okafor, M. Onyia","doi":"10.14382/epitoanyag-jsbcm.2021.14","DOIUrl":"https://doi.org/10.14382/epitoanyag-jsbcm.2021.14","url":null,"abstract":"Ceramic industry generates a large amount of wastes which are presently not reused in any significant quantity. Reusing these wastes in concrete could solve the ceramic industry waste management problem and also lead to a more sustainable concrete industry. While the use of ceramic wastes as coarse aggregate has been extensively investigated, not much findings are available on its use as fine aggregate and there are presently no models for predicting the properties of ceramic wastes aggregate concretes. This study investigates effect of crushed recycled-ceramic tiles (CRT) fine aggregate content on compressive strength of concrete. Scheffe’s second degree polynomial models were also formulated for compressive strength, slump height and cost of CRT concrete. Results show that incorporation of CRT as fine aggregate improves the compressive strength of concrete and this increase is directly proportional to its content. Authors therefore recommend up to 100% replacement of conventional fine aggregate with CRT in concrete production. The formulated models could predict compressive strength, slump and cost of CRT concrete if the mix ratio is known and vice versa. Analysis of variance and normal probability plots of model residuals were used to test adequacy of the models, and the models were found to be adequate at 95% confidence level. With the model equations, sample optimization was carried out to obtain the most economical mix for certain predefined criteria and the results were promising. Several similar optimizations can be carried out using the formulated model equations for any desired criteria of the modeled responses.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"17 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85277471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14382/EPITOANYAG-JSBCM.2021.12
Dániel Csanády, Olivér Fenyvesi
In timber structures, many joints are constructed with polymer adhesives and industrial timber by-products also contain polymer resins in huge amount. Majority of these adhesives are artificial polymers with big environmental footprints and lots of them have a negative effect on human health. Some natural or silicate-based adhesives are available in the construction industry, but their heat or water resistance are poor. Some of these types of adhesives have evolved but compounds contain some artificial polymer, and the heat resistance is worse than silicate-based in general. In this article, water-resistance and heat resistance have been investigated in the case of silicate-based binders. In order to be a benchmark, a PVA based industrial timber adhesive (as reference) was also tested. The shear strength of the bonded joints was tested and compared under wet and hot conditions. Reference silicate-based binder was modified with other silicate, acids or alkalines. The effect of modifiers on the solubility of binders was also investigated. As a result it was stated, that reference binder has a higher strength under normal conditions, but the modified silicate binders have better performance under wet and hot conditions. The modifiers can increase the shear strength, ductility, and water-resistance without decreasing the heat resistance and also makes the material quality more uniform. The silicate binders make a rough bond surface, which can pass the forces effectively between the components of specimens.
{"title":"Shear behaviour of silicate-based structural adhesives for timber","authors":"Dániel Csanády, Olivér Fenyvesi","doi":"10.14382/EPITOANYAG-JSBCM.2021.12","DOIUrl":"https://doi.org/10.14382/EPITOANYAG-JSBCM.2021.12","url":null,"abstract":"In timber structures, many joints are constructed with polymer adhesives and industrial timber by-products also contain polymer resins in huge amount. Majority of these adhesives are artificial polymers with big environmental footprints and lots of them have a negative effect on human health. Some natural or silicate-based adhesives are available in the construction industry, but their heat or water resistance are poor. Some of these types of adhesives have evolved but compounds contain some artificial polymer, and the heat resistance is worse than silicate-based in general. In this article, water-resistance and heat resistance have been investigated in the case of silicate-based binders. In order to be a benchmark, a PVA based industrial timber adhesive (as reference) was also tested. The shear strength of the bonded joints was tested and compared under wet and hot conditions. Reference silicate-based binder was modified with other silicate, acids or alkalines. The effect of modifiers on the solubility of binders was also investigated. As a result it was stated, that reference binder has a higher strength under normal conditions, but the modified silicate binders have better performance under wet and hot conditions. The modifiers can increase the shear strength, ductility, and water-resistance without decreasing the heat resistance and also makes the material quality more uniform. The silicate binders make a rough bond surface, which can pass the forces effectively between the components of specimens.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"16 1","pages":"72-82"},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75393307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14382/epitoanyag-jsbcm.2021.19
A. S. Apkarian, L. Gömze, J. F. Ibrahim, S. Kulkov
In this work was developed a filtering material, where a granular glass-ceramic with a catalytically active layer applied as a carrier. The main component of the pellet batch is alkaline glass which made it possible to intensify the processes of melting and foaming of the molten glass. It has been defined physical and technical characteristic of granules and obtained that its density smaller 300 kg/m3 and strength under compression layers between 0.8-2.6 MPa. Taking into account the physical and technical characteristics of GCM granules, studies were carried out to determine the possibility of using them as filtering media with a catalytically active layer. This makes it possible not only to dispose of cullet, but also to create a highly efficient material from it, allowing water to be purified up to standards.
{"title":"Sintering of Silica-Alumina Granular Materials and its Catalytic Properties","authors":"A. S. Apkarian, L. Gömze, J. F. Ibrahim, S. Kulkov","doi":"10.14382/epitoanyag-jsbcm.2021.19","DOIUrl":"https://doi.org/10.14382/epitoanyag-jsbcm.2021.19","url":null,"abstract":"In this work was developed a filtering material, where a granular glass-ceramic with a catalytically active layer applied as a carrier. The main component of the pellet batch is alkaline glass which made it possible to intensify the processes of melting and foaming of the molten glass. It has been defined physical and technical characteristic of granules and obtained that its density smaller 300 kg/m3 and strength under compression layers between 0.8-2.6 MPa. Taking into account the physical and technical characteristics of GCM granules, studies were carried out to determine the possibility of using them as filtering media with a catalytically active layer. This makes it possible not only to dispose of cullet, but also to create a highly efficient material from it, allowing water to be purified up to standards.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"13 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80239344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14382/EPITOANYAG-JSBCM.2021.4
A. Merah, Benharzallah Krobba
The first objective of this study is the use of marble waste powder as a partial replacement for cement (CEM I 42.5) in concrete. Furthermore, the phenomenon of carbonation significantly influences the durability of reinforced concrete structures, in this context, the second objective of this work is the study of the effect of accelerated carbonation on the durability of concretes formulated with cement. Containing marble powder with different percentages. To achieve this objective, four concrete mixes containing 0%, 10%, 15% and 30% marble powder as a cement replacement by weight were prepared. These concrete mixes were subjected to accelerated carbonation to study their durability against this phenomenon. The series of tests is carried out to study the effect of replacing 10%, 20% and 30% of the cement with marble powder on the depth of carbonation and the compressive strength and compare it with traditional concrete. The result of the present study indicates that the depth of carbonation increases with the increase in the rate of replacement of the cement with marble powder (10% to 30%) and that the resistance to compression decreases slightly with the increase in the replacement. the compressive strength of the concrete remains within the acceptable range recommended by the regulations used in Algeria.
本研究的第一个目标是使用大理石废粉作为混凝土中水泥(CEM I 42.5)的部分替代品。此外，碳化现象显著影响钢筋混凝土结构的耐久性，在这种情况下，本工作的第二个目标是研究加速碳化对水泥配制的混凝土耐久性的影响。含不同百分比的大理石粉。为了实现这一目标，配制了四种混凝土混合物，分别含有0%、10%、15%和30%的大理石粉作为水泥的重量替代品。这些混凝土混合物经受加速碳化，以研究它们对这种现象的耐久性。通过系列试验研究了大理岩粉替代10%、20%、30%水泥对混凝土碳化深度和抗压强度的影响，并与传统混凝土进行了对比。本研究结果表明，随着大理岩粉水泥替代率(10% ~ 30%)的增加，碳化深度增加，抗压性能随替代率的增加略有下降。混凝土的抗压强度保持在阿尔及利亚使用的法规推荐的可接受范围内。
{"title":"Durability against carbonation of concrete formulated with partial replacement of cement with marble powder","authors":"A. Merah, Benharzallah Krobba","doi":"10.14382/EPITOANYAG-JSBCM.2021.4","DOIUrl":"https://doi.org/10.14382/EPITOANYAG-JSBCM.2021.4","url":null,"abstract":"The first objective of this study is the use of marble waste powder as a partial replacement for cement (CEM I 42.5) in concrete. Furthermore, the phenomenon of carbonation significantly influences the durability of reinforced concrete structures, in this context, the second objective of this work is the study of the effect of accelerated carbonation on the durability of concretes formulated with cement. Containing marble powder with different percentages. To achieve this objective, four concrete mixes containing 0%, 10%, 15% and 30% marble powder as a cement replacement by weight were prepared. These concrete mixes were subjected to accelerated carbonation to study their durability against this phenomenon. The series of tests is carried out to study the effect of replacing 10%, 20% and 30% of the cement with marble powder on the depth of carbonation and the compressive strength and compare it with traditional concrete. The result of the present study indicates that the depth of carbonation increases with the increase in the rate of replacement of the cement with marble powder (10% to 30%) and that the resistance to compression decreases slightly with the increase in the replacement. the compressive strength of the concrete remains within the acceptable range recommended by the regulations used in Algeria.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"69 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90394944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14382/EPITOANYAG-JSBCM.2021.2
E. Butenko, E. Kapustina, A. Kapustin
{"title":"Kinetics and products composition of catalytic hydration of ethylene oxide in the presence of layered double hydroxides","authors":"E. Butenko, E. Kapustina, A. Kapustin","doi":"10.14382/EPITOANYAG-JSBCM.2021.2","DOIUrl":"https://doi.org/10.14382/EPITOANYAG-JSBCM.2021.2","url":null,"abstract":"","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"23 1","pages":"9-12"},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88956935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14382/epitoanyag-jsbcm.2021.17
K. Ajtayné Károlyfi, F. Papp
The concrete composition is one of the most significant factor influencing the quality of the fairfaced concrete surfaces. Practical experiences showed, that in case of architectural concrete slightly oversaturated concrete mixtures result in higher quality surfaces. In this work the surface quality of fair-faced concrete samples was examined depending on the saturation degree of the cement paste and the dimensions of the mould. The main evaluation aspects were the surface void ratio, the discoloration, the honeycomb and bleeding. The surface void ratio was obtained by using digital image processing techniques, while the other surface irregularities were examined using manual methods. The concrete samples were classified according to the Austrian and German guidelines. The effect of saturation degree on the mechanical properties of the concrete was also studied. Results show that the increase in saturation degree of cement paste improves significantly the surface quality, while the dimensions of the mould have a reduced, but also a positive effect. In the meantime, there is a decrease in the mechanical properties of the concrete.
{"title":"Laboratory study of the effect of saturation degree on quality of fair-faced concrete surfaces","authors":"K. Ajtayné Károlyfi, F. Papp","doi":"10.14382/epitoanyag-jsbcm.2021.17","DOIUrl":"https://doi.org/10.14382/epitoanyag-jsbcm.2021.17","url":null,"abstract":"The concrete composition is one of the most significant factor influencing the quality of the fairfaced concrete surfaces. Practical experiences showed, that in case of architectural concrete slightly oversaturated concrete mixtures result in higher quality surfaces. In this work the surface quality of fair-faced concrete samples was examined depending on the saturation degree of the cement paste and the dimensions of the mould. The main evaluation aspects were the surface void ratio, the discoloration, the honeycomb and bleeding. The surface void ratio was obtained by using digital image processing techniques, while the other surface irregularities were examined using manual methods. The concrete samples were classified according to the Austrian and German guidelines. The effect of saturation degree on the mechanical properties of the concrete was also studied. Results show that the increase in saturation degree of cement paste improves significantly the surface quality, while the dimensions of the mould have a reduced, but also a positive effect. In the meantime, there is a decrease in the mechanical properties of the concrete.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"65 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84479059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14382/epitoanyag-jsbcm.2021.20
J. F. Ibrahim, A. S. Apkarian, M. Tihtih, S. Kulkov, L. Gömze
This research study investigates the potential use of traditional raw materials to synthesize new ceramic composite materials that can be used in different industrial applications. The composite materials were developed through mechanical activation, carbonization, and reactive sintering techniques. Natural zeolite from Tokaj region, alumina from Motim, and sawdust were used as starting raw materials. Stoichiometric amounts of the raw materials were mixed and milled in planetary ball milling followed by uniaxially pressing to produce cylindrical ceramic discs. The produced green ceramics were then sintered in an electric laboratory kiln under an oxygen-free environment at 1200 °C. In-situ carbonization of the sawdust was confirmed via X-ray diffraction. The thermal properties were also investigated by derivatography. The produced ceramic specimens were tested on microstructural characteristics, porosity, density, and water absorption.
{"title":"In-situ carbonization of natural zeolite-alumina composite materials incorporated sawdust","authors":"J. F. Ibrahim, A. S. Apkarian, M. Tihtih, S. Kulkov, L. Gömze","doi":"10.14382/epitoanyag-jsbcm.2021.20","DOIUrl":"https://doi.org/10.14382/epitoanyag-jsbcm.2021.20","url":null,"abstract":"This research study investigates the potential use of traditional raw materials to synthesize new ceramic composite materials that can be used in different industrial applications. The composite materials were developed through mechanical activation, carbonization, and reactive sintering techniques. Natural zeolite from Tokaj region, alumina from Motim, and sawdust were used as starting raw materials. Stoichiometric amounts of the raw materials were mixed and milled in planetary ball milling followed by uniaxially pressing to produce cylindrical ceramic discs. The produced green ceramics were then sintered in an electric laboratory kiln under an oxygen-free environment at 1200 °C. In-situ carbonization of the sawdust was confirmed via X-ray diffraction. The thermal properties were also investigated by derivatography. The produced ceramic specimens were tested on microstructural characteristics, porosity, density, and water absorption.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"7 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78525901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14382/epitoanyag-jsbcm.2021.18
S. Safiddine, H. Soualhi, B. Benabed, A. Belaidi, E. Kadri
The drive towards using eco-friendly binders with increasing proportion of supplementary cementitious materials (SCMs) will lead to the development of more complex mixtures. However, the availability of fly ash (FA) would not cover future needs due to restrictions on the combustion of coal in power plants. Accordingly, the addition of limestone filler (LF) has an inherent advantage throughout the world of its availability in large deposits. The first main aim of this study was to determine the effect of high-volume LF used as Portland cement replacement with up to 60% on the rheological properties of cement mortar compared to the FA and the slag (BFS). Unlike FA and BFS, an increase in LF replacement reduced the rheological properties of the mortar. The relationship obtained between relative solid concentration and rheological properties of mortar with different SCMs was reasonable. The second aim of this study was to determine the rheological behavior of the mortar with different superplasticizer (SP) admixtures. Three SP types were utilized, ether-polycarboxylic modified (SP1), phosphonate modified (SP2) and new generation of polycarboxylate (SP3), with various dosages. The results show that, SP2 reduced the rheological properties better than SP1 and SP3 with dosages of less than 1%.
{"title":"Effect of different supplementary cementitious materials and superplasticizers on rheological behavior of eco-friendly mortars","authors":"S. Safiddine, H. Soualhi, B. Benabed, A. Belaidi, E. Kadri","doi":"10.14382/epitoanyag-jsbcm.2021.18","DOIUrl":"https://doi.org/10.14382/epitoanyag-jsbcm.2021.18","url":null,"abstract":"The drive towards using eco-friendly binders with increasing proportion of supplementary cementitious materials (SCMs) will lead to the development of more complex mixtures. However, the availability of fly ash (FA) would not cover future needs due to restrictions on the combustion of coal in power plants. Accordingly, the addition of limestone filler (LF) has an inherent advantage throughout the world of its availability in large deposits. The first main aim of this study was to determine the effect of high-volume LF used as Portland cement replacement with up to 60% on the rheological properties of cement mortar compared to the FA and the slag (BFS). Unlike FA and BFS, an increase in LF replacement reduced the rheological properties of the mortar. The relationship obtained between relative solid concentration and rheological properties of mortar with different SCMs was reasonable. The second aim of this study was to determine the rheological behavior of the mortar with different superplasticizer (SP) admixtures. Three SP types were utilized, ether-polycarboxylic modified (SP1), phosphonate modified (SP2) and new generation of polycarboxylate (SP3), with various dosages. The results show that, SP2 reduced the rheological properties better than SP1 and SP3 with dosages of less than 1%.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72501598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.14382/EPITOANYAG-JSBCM.2021.1
Ilyes Bachir Belmehdi, A. Mellak, L. Hammadi
In this paper, we investigate the effect of Poly-Sal polymer and barite on the rheological properties of bentonite of Maghnia (western Algeria). The modified Cross model is used to fit the stationary flow curves of bentonite at different concentrations of Poly-Sal add in base bentonite (4%) and the generalized model of Kelvin-Voigt is successfully applied to fit the creep and recovery data and to analyze the viscoelastic properties of the mixture Bentonite-Barite. Finally, the thixotropic behavior studied of the mixture Bentonite-Barite at constant temperature is analyzed by using a structural kinetic model (SKM) in order to account for the time dependent effect. It is demonstrated that the increase in quantity of barite in base bentonite induces a restructuring and reorganization of the particles of the bentonite at the microstructural level.
{"title":"Effects of poly-sal polymer and barite addition on rheological properties of algerian bentonite","authors":"Ilyes Bachir Belmehdi, A. Mellak, L. Hammadi","doi":"10.14382/EPITOANYAG-JSBCM.2021.1","DOIUrl":"https://doi.org/10.14382/EPITOANYAG-JSBCM.2021.1","url":null,"abstract":"In this paper, we investigate the effect of Poly-Sal polymer and barite on the rheological properties of bentonite of Maghnia (western Algeria). The modified Cross model is used to fit the stationary flow curves of bentonite at different concentrations of Poly-Sal add in base bentonite (4%) and the generalized model of Kelvin-Voigt is successfully applied to fit the creep and recovery data and to analyze the viscoelastic properties of the mixture Bentonite-Barite. Finally, the thixotropic behavior studied of the mixture Bentonite-Barite at constant temperature is analyzed by using a structural kinetic model (SKM) in order to account for the time dependent effect. It is demonstrated that the increase in quantity of barite in base bentonite induces a restructuring and reorganization of the particles of the bentonite at the microstructural level.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"319 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75456160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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