Global Journal of Polymer Science最新文献

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EFFECT OF CaO CONTENT ON GGBS BASED GEOPOLYMER CONCRETE CaO含量对GGBS基地聚合物混凝土性能的影响

Global Journal of Polymer Science Pub Date : 2019-07-17 DOI: 10.37516/global.j.polym.sci.2019.0075

D. S. Patare, P. A. Chavana, S. L. Hake

{"title":"EFFECT OF CaO CONTENT ON GGBS BASED GEOPOLYMER CONCRETE","authors":"D. S. Patare, P. A. Chavana, S. L. Hake","doi":"10.37516/global.j.polym.sci.2019.0075","DOIUrl":"https://doi.org/10.37516/global.j.polym.sci.2019.0075","url":null,"abstract":"GGBS based Geopolymer concrete is innovative composite material for civil engineering industry for which binding material cement and water is replaced bypozzolanic material like fly ash, GGBS and activated by highly alkaline solutions to act as a binder in the concrete. Mix design procedure used is proposed on the basis of quantity, fineness of fly ash, quantity of water, grading of fine aggregate, fine to total aggregate ratio and GGBS is used for M40 grade of GGBS based Geopolymer concrete. During experimental work, variation of different parameter like ratio of alkaline solution ratio (Na2SiO3/NaOH) of 2 was taken. Different molarities such as 12M and 16M of NaOH was taken. In addition, different percentage of such as 0%, 20%, 40%, 50% of GGBS with solution to fly ash ratio 0.38 and sodium silicate to sodium hydroxide ratio 2 was taken. The samples are cured in oven at 450C temperature for 24 hrs. The results show that the strength of geopolymer concrete increases with increase in percentage of GGBS in the mix. The strength increase up to 40% replacement of fly ash with GGBS after that it starts decreasing. In case of fly ash based geopolymer concrete as there is no CaO content so curing takes place due to polymerization process, but with the addition of GGBS in fly ash based geopolymer concrete curing is due to combine effect of polymerization as well as heat of hydration due to presence of alkaline solution and CaO respectively. As molarity of NaOH increases from 12M to 16M, compressive strength, flexural strength, split tensile strength also increases.","PeriodicalId":226579,"journal":{"name":"Global Journal of Polymer Science","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134378052","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

ENHANCING THE PERMITTIVITY, PERMEABILITY AND MORPHOLOGY OF ZNO-PCL NANOCOMPOSITES VIA NANO INCLUSION TREATMENT 通过纳米包裹体处理提高zno-pcl纳米复合材料的介电常数、渗透率和形貌

Global Journal of Polymer Science Pub Date : 2019-05-28 DOI: 10.37516/global.j.polym.sci.2019.0037

A. Yakubu, Z. Abba, S. Sahabi

{"title":"ENHANCING THE PERMITTIVITY, PERMEABILITY AND MORPHOLOGY OF ZNO-PCL NANOCOMPOSITES VIA NANO INCLUSION TREATMENT","authors":"A. Yakubu, Z. Abba, S. Sahabi","doi":"10.37516/global.j.polym.sci.2019.0037","DOIUrl":"https://doi.org/10.37516/global.j.polym.sci.2019.0037","url":null,"abstract":"This study involves an investigation to ascertain the effect of ZnO nano inclusion on the evolution and dielectric properties of ZnO-PCL nanocomposites. The effect of the nano inclusion towards attenuation of the composites is also reported. In this study, ZnO nano particles and polycaprolactone (PCL) were blended to form composites using melt blending technique. The composites were employed to study the effect of nano inclusion on the materials. Further analysis was done using FTIR to investigate the band positions and absorption peak of the prepared samples, SEM and EDX for the morphology and elemental composition of samples. The FTIR spectra indicated a strong interaction at the interface of the ZnO nano particles with the polymer matrix. Amongst other findings, it was confirmed that the dielectric constant increases as the ZnO nano content increases where the average values for the different compositions are 4.39, 4.14, 3.62, 3.31 and 3.21 from highest to lowest filler percentage respectively. The high dielectric properties of the composites makes it suitable for small microwave absorption devices","PeriodicalId":226579,"journal":{"name":"Global Journal of Polymer Science","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128251978","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