1 resultado para low-heating-rate sintering
em CamPuce - an association for the promotion of science and humanities in African Countries
Filtro por publicador
- Abertay Research Collections - Abertay University’s repository (2)
- Aberystwyth University Repository - Reino Unido (1)
- Academic Archive On-line (Stockholm University; Sweden) (2)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (6)
- AMS Tesi di Laurea - Alm@DL - Università di Bologna (4)
- Aquatic Commons (6)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (5)
- Archimer: Archive de l'Institut francais de recherche pour l'exploitation de la mer (1)
- Archive of European Integration (1)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (4)
- Aston University Research Archive (40)
- Biblioteca de Teses e Dissertações da USP (2)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (14)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (10)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (3)
- Bioline International (1)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (38)
- Boston University Digital Common (2)
- Brock University, Canada (3)
- Bucknell University Digital Commons - Pensilvania - USA (1)
- CaltechTHESIS (4)
- Cambridge University Engineering Department Publications Database (14)
- CamPuce - an association for the promotion of science and humanities in African Countries (1)
- CentAUR: Central Archive University of Reading - UK (33)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (67)
- Cochin University of Science & Technology (CUSAT), India (2)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (2)
- Corvinus Research Archive - The institutional repository for the Corvinus University of Budapest (3)
- Dalarna University College Electronic Archive (3)
- Deakin Research Online - Australia (54)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
- Digital Commons - Michigan Tech (2)
- Digital Commons - Montana Tech (1)
- Digital Commons @ DU | University of Denver Research (2)
- Digital Commons at Florida International University (5)
- DigitalCommons - The University of Maine Research (1)
- DigitalCommons@The Texas Medical Center (3)
- DigitalCommons@University of Nebraska - Lincoln (1)
- DRUM (Digital Repository at the University of Maryland) (3)
- Duke University (3)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (8)
- Glasgow Theses Service (1)
- Greenwich Academic Literature Archive - UK (6)
- Helda - Digital Repository of University of Helsinki (4)
- Hospital Prof. Dr. Fernando Fonseca - Portugal (1)
- Illinois Digital Environment for Access to Learning and Scholarship Repository (1)
- Indian Institute of Science - Bangalore - Índia (62)
- Instituto Politécnico do Porto, Portugal (3)
- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (4)
- Massachusetts Institute of Technology (1)
- Memorial University Research Repository (1)
- National Center for Biotechnology Information - NCBI (3)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (1)
- Portal de Revistas Científicas Complutenses - Espanha (1)
- Publishing Network for Geoscientific & Environmental Data (23)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (38)
- Queensland University of Technology - ePrints Archive (94)
- Repositorio de la Universidad de Cuenca (1)
- Repositório digital da Fundação Getúlio Vargas - FGV (3)
- Repositório Digital da UNIVERSIDADE DA MADEIRA - Portugal (1)
- Repositorio Institucional da UFLA (RIUFLA) (2)
- Repositório Institucional da Universidade de Aveiro - Portugal (5)
- Repositório Institucional da Universidade Federal do Rio Grande do Norte (1)
- Repositorio Institucional de la Universidad Pública de Navarra - Espanha (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (132)
- Repositorio Institucional Universidad de Medellín (1)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (4)
- SAPIENTIA - Universidade do Algarve - Portugal (1)
- Scientific Open-access Literature Archive and Repository (2)
- Universidad de Alicante (6)
- Universidad del Rosario, Colombia (3)
- Universidad Politécnica de Madrid (9)
- Universidade de Lisboa - Repositório Aberto (3)
- Universidade Federal do Pará (5)
- Universidade Federal do Rio Grande do Norte (UFRN) (53)
- Universidade Metodista de São Paulo (1)
- Universidade Técnica de Lisboa (3)
- Universita di Parma (1)
- Universitat de Girona, Spain (3)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (2)
- Université de Lausanne, Switzerland (4)
- Université de Montréal (2)
- Université de Montréal, Canada (5)
- Université Laval Mémoires et thèses électroniques (1)
- University of Michigan (2)
- University of Queensland eSpace - Australia (17)
- University of Washington (3)
- WestminsterResearch - UK (1)
Resumo:
Two clayey materials, one provided by a patner in mineral sector and the other coming from Balengou (West Region Cameroon) were subject of a comparative study in order to evaluate the influence of their crystalline structure on their pozzolanic property. These two natural materials were preliminary enriched in clay minerals by wet sieving and the fractions obtained are denoted K and H respectively. K and H were calcinated at 700 °C, with a heating rate of 5 °C/min and 10 hours dwell at the peak temperature, the products obtained were named MK and MH. Samples K, H, MK and MH were physicochemically characterized by the chemical (ICP), thermal(TGA/DTA) and mineralogical (DRX and Spectrometry IR) analyses together with the measurement of specific surface (BET), crystallinity and the pouzzolanicity test. The results confirmed K as a kaolinitic and H halloysic clay. The kaolinite and the halloysite respectively presented in these clayey materials exhibited a poor crystallinity, but the degree of disorder is higher in K than in H. These results were largely affected by the significant fraction of gibbsite in kaolinitic clay K. At the crude state, the pozzolanic activity of the material H is weak compared with that of K, but the heat treatment makes largely improve this property for both samples.