Epitoanyag - Journal of Silicate Based and Composite Materials最新文献_第8页

Synthesis and characterization of iron-doped GdMnO3 multiferroic ceramics 掺铁GdMnO3多铁陶瓷的合成与表征

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2021-01-01 DOI: 10.14382/EPITOANYAG-JSBCM.2021.5

J. F. Ibrahim, A. Mergen, U. Parlak, E. Kurovics, M. Tihtih, L. Gömze

引用次数: 1

An investigation on the physical, mechanical and thermal properties of dune sand mortars lightened by expanded polystyrene beads (EPS) 膨胀聚苯乙烯微珠(EPS)轻化沙丘砂砂浆的物理、力学和热性能研究

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2021-01-01 DOI: 10.14382/EPITOANYAG-JSBCM.2021.6

O. Herihiri, A. Guettala, B. Benabed

{"title":"An investigation on the physical, mechanical and thermal properties of dune sand mortars lightened by expanded polystyrene beads (EPS)","authors":"O. Herihiri, A. Guettala, B. Benabed","doi":"10.14382/EPITOANYAG-JSBCM.2021.6","DOIUrl":"https://doi.org/10.14382/EPITOANYAG-JSBCM.2021.6","url":null,"abstract":"As the idea of sustainable development has been involved in all fields including construction and civil engineering, a huge amount of researches has focused on reducing energy use and protecting the environment, while at the same time ensuring the comfort of inhabitant. Taking on this viewpoint, the current work focuses on replacing natural materials with recycled and synthetic materials, to produce a new eco-material that satisfies the binary concept; minimizing cost and constructing light elements with complex geometry that promotes architectural innovation. The present work aims to mix design and study a mortar based on mixture of fine siliceous dune sand and crushed limestone sand lightened by expanded polystyrene (EPS). Sand was substituted by EPS with percentages of 0, 5, 10, 15, 20, 25 and 100%. The physical, mechanical and thermal properties of composite mortars were assessed according to the dry density, compressive strength, flexural strength, porosity, and conductivity. The obtained results show that, the use of EPS decreases the mechanical properties and the density of mortars. However, the thermal properties of mortars incorporating EPS were improved and meet the requirement for lightweight concrete constructions and insulation applications.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"39 1","pages":"28-36"},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83923948","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}

引用次数: 0

Infrared transmission and properties of glasses in the PbO–B2 O3 –SiO2 –GeO2 system PbO-B2 O3 -SiO2 -GeO2体系中玻璃的红外透射及性能

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2021-01-01 DOI: 10.14382/EPITOANYAG-JSBCM.2021.3

V. Goleus, Y. Hordieiev

引用次数: 3

The effects of partially replacing cement by glass waste powder on concrete properties 玻璃废粉部分替代水泥对混凝土性能的影响

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2021-01-01 DOI: 10.14382/EPITOANYAG-JSBCM.2021.7

Antonio Bouty, F. Homsi

{"title":"The effects of partially replacing cement by glass waste powder on concrete properties","authors":"Antonio Bouty, F. Homsi","doi":"10.14382/EPITOANYAG-JSBCM.2021.7","DOIUrl":"https://doi.org/10.14382/EPITOANYAG-JSBCM.2021.7","url":null,"abstract":"The cement production causes different types of pollution in addition to the high amount of energy needed for the manufacturing process, starting by the site extraction and ending by the factory production; at the same time millions of tons of glass waste are dumped yearly at landfills. This research verifies the possibility of partially replacing cement by glass waste powder (GWP) in new concrete mixes. For this purpose, two different concrete mixes having compressive strengths of 25 MPa and 32 MPa were made with 0%, 10%, 15%, 20% and 25% of GWP as a partial replacement of cement. The properties of fresh concrete mixes were determined by the slump, air content and flow table tests. Concerning the tests on hardened concrete, the compressive strength test was carried out on cylindrical specimens at 7, 14 and 28 days in addition to the water absorption and the tensile strength tests at 28 days. As a result, the partial replacement of cement by GWP showed no clear effect on the properties of the fresh concrete mixes. Whereas, 10% GWP in 25MPa concrete mix gave higher compressive and tensile strengths at 28 days and increased the moisture content; and 15% GWP in 32 MPa concrete mix gave the higher compressive strength at 28 days but decreased the tensile strength and the moisture content.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"118 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89125549","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}

引用次数: 0

Evaluation of chloride resistance of silica fume and glass waste MWCNT- geopolymer composite 硅灰和玻璃废料MWCNT-地聚合物复合材料的耐氯性评价

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2020-04-01 DOI: 10.21203/rs.3.rs-20534/v1

H. Khater, Abdeen M. El-Nagar

引用次数: 1

Potentials of calcined clay as a pozzolan 煅烧粘土的潜力，如火山灰

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2020-01-01 DOI: 10.14382/epitoanyag-jsbcm.2020.11

O. Adekitan, M. Popoola

{"title":"Potentials of calcined clay as a pozzolan","authors":"O. Adekitan, M. Popoola","doi":"10.14382/epitoanyag-jsbcm.2020.11","DOIUrl":"https://doi.org/10.14382/epitoanyag-jsbcm.2020.11","url":null,"abstract":"Calcined clay (CC) is a promising pozzolan recently attracting research attention globally. Various investigations have shown the desirable attributes of the material as a Supplementary Cementitious Material (SCM) in cement concrete systems. This paper captures the compressive strengths impact of calcined clay-Portland cement (CC-PC) as binders in both concrete and soil systems. Grade 20 concrete cubes were prepared and tested; adopting five CC-PC binder blends obtained by replacing PC with CC at 0(control), 5, 10, 15, and 20%; designated as PC100, PC95, PC90, PC85, and PC80, respectively. Similarly, four CC-PC binder blends PC100(control), PC75, PC50, and PC25 were adopted to stabilise samples of A-2-6 lateritic soils at increasing content of 0, 2.5, 5, 7.5, 10% of the soil’s weight. Results show that compressive strengths of the concrete samples increase with cement replacement. PC80 impacts the highest strengths with 7, 28 and 56-day strength activity indices (SAIs) of 174.7, 126.0 and 144.9%, respectively. In soil stabilisation, unconfined compressive strength (UCS) of the soil was found to increase with binder contents (2.5% to 10%) for the four binder designations. Compared to control (PC100), the PC75, and PC50 binders were better stabilisers with 7 and 28-day SAIs ranging between 105 and 275%, respectively. From the results, for applications across concrete and soil stabilisation works, CC has been shown to be a potential supplementary material for mitigating carbon emission without compromising on strength enhancement.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"35 1","pages":"70-71"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73724874","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}

引用次数: 3

comparative study of the modified phyllosilicate group of minerals isoprene for a new nanocomposite preparation 异戊二烯改性层状硅酸盐基矿物制备新型纳米复合材料的比较研究

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2020-01-01 DOI: 10.14382/epitoanyag-jsbcm.2020.18

Fayq Hsan Jabbar, E. Al-Mulla, W. H. Hoidy

{"title":"comparative study of the modified phyllosilicate group of minerals isoprene for a new nanocomposite preparation","authors":"Fayq Hsan Jabbar, E. Al-Mulla, W. H. Hoidy","doi":"10.14382/epitoanyag-jsbcm.2020.18","DOIUrl":"https://doi.org/10.14382/epitoanyag-jsbcm.2020.18","url":null,"abstract":"In this study, new nanocomposites of biopolymers were prepared. Sunflower oil synthesized fatty amides (FASF), used as an organic compound to change the natural group of mineral clay phyllosilicate, sodium montmorillonite (NaMMT) and potassium illite (KILT). The clay modification was accomplished by stirring the clay particles in an aqueous (FASF) solution which increases the clay layer distance from 1.28 to 2.79 nm of MMT and 1.18 to 1.33 nm of ILT because the action exchange capacity NaMMT is much greater than the low cation exchange capacity KILT. The improved Na-MMT was then used as a natural rubber (NR) nanocomposite isoprene preparation. The modifier’s interaction in the clay layer was defined by Xray diffraction (XRD). The nanocomposite was synthesized through melt mixing of modified clay (MMT) and NR by a traditional method. Using XRD, transmission electron microscopy (TEM) and thermogravimetric analysis (TGA), the nanocomposite was characterized. The results of XRD and TEM verified nanocomposite growth. Compared to pure NR, NR modified MMT nanocomposites show higher thermal stability. FASF as a vegetable oil derivative to modify clay will reduce dependence on surfactants based on petroleum. Such nanocomposite is considered environmentally friendly in addition to renewable resources.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"81 1","pages":"110-113"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90859694","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}

引用次数: 1

Resilient modulus and deviatoric stress of cemented soils treated with crushed waste ceramics (CWC) for pavement subgrade construction 废陶瓷碎石处理水泥土的弹性模量和偏应力

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2020-01-01 DOI: 10.14382/epitoanyag-jsbcm.2020.14

K. Onyelowe, D. B. Van, Chidozie Ikpa, K. Osinubi, A. Eberemu, A. B. Salahudeen, Oscar C. Nnadi, Moses C. Chima, Jesuborn Obimba Wogu, K. Ibe, B. Ugorji

{"title":"Resilient modulus and deviatoric stress of cemented soils treated with crushed waste ceramics (CWC) for pavement subgrade construction","authors":"K. Onyelowe, D. B. Van, Chidozie Ikpa, K. Osinubi, A. Eberemu, A. B. Salahudeen, Oscar C. Nnadi, Moses C. Chima, Jesuborn Obimba Wogu, K. Ibe, B. Ugorji","doi":"10.14382/epitoanyag-jsbcm.2020.14","DOIUrl":"https://doi.org/10.14382/epitoanyag-jsbcm.2020.14","url":null,"abstract":"The behavior of resilient modulus of cemented lateritic soils treated with crushed waste ceramics and utilized as pavement underlain has been investigated under laboratory conditions. This is the measure of the rigidity of soils used as foundation materials. The rampant failures of pavements due to undesirable characteristics exhibited by the foundations have spurred this research work to enable a better understanding of the behavior of soils used as foundation materials and how best they can be handled or treated to ensure stability and durability of the structures. The soils were first characterized and found to belong to A-7, A-7-6, A-7 and A-7-5 group of soils according to the AASHTO classification method. Also, they were found, from basic experiments, to be highly plastic soils with high clay contents. The soils were treated with crushed waste ceramics in the proportion of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100%, 110% and 120% by weight of solid with a constant addition of 2.5% by weight ordinary cement. The results of the examination showed that the resilient modulus increased substantially with increased rate of crushed waste ceramics. This showed that crushed ceramic waste is a good pozzolanic material for soils stabilization in the construction of pavement foundations.","PeriodicalId":11915,"journal":{"name":"Epitoanyag - Journal of Silicate Based and Composite Materials","volume":"61 1","pages":"86-90"},"PeriodicalIF":0.7,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77216966","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}

引用次数: 5

A lőszermentesítés szerepe az építőiparban

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2020-01-01 DOI: 10.14382/epitoanyag-jsbcm.2020.9

István Ember

引用次数: 1

Overview of ash as supplementary cementitious silicate-based composite and construction material 粉煤灰作为硅酸盐基复合材料和建筑材料的补充胶凝研究综述

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Epitoanyag - Journal of Silicate Based and Composite Materials Pub Date : 2020-01-01 DOI: 10.14382/epitoanyag-jsbcm.2020.13

K. Onyelowe, F. A. D. Onyelowe, D. B. Van

引用次数: 8