Size Effect on Volume-Shape Change of Both Micro and Nano Aluminum-Silicate Minerals
Both conventional and nano silicate minerals have importance for several fields of advanced technological research and industries. Nano clay can be used as filler material or reinforcement for other materials to produce nanocomposite as the case of clay based-polymer nanocomposite. Nowadays there is worldwide interest of these materials which may be synthesized or natural. In current paper, shrinkage phenomenon has been studied and cracks of this material using natural Saudi Arabian smectite type MMT. The three dimensional changes of cubic samples of nano clay are studied and compared to conventional clay, semi conventional-semi nano clay and another cementous type of clay based nanocomposite. It is found that nano clay changes are very sensitive and high without cracking while conventional clay type has less change accompanied by cracks. On the other hand semi conventional-semi nano clay mineral composite has intermediate resuls of volume change with cracks but less than the pure conventional type. SEM, EDAX and XRD characterizations are made. Both volume and length changes are recorded. The study can be considered as the base of proposing of new swelling-shrinkage theory.
Nano silicate-aluminum Shrinkage Mechanism Cracks and fractures 3-D Dilatational change Distortional effects
Refat El-Sheikhy Mosleh Al-Shamrani
Civil Engineering Dept,College of Engineering,Bughshan Research Chair,King Saud University,P. O. Box 800,Riyadh 11421,Saudi Arabia
国际会议
the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)
三亚
英文
430-433
2011-03-25（万方平台首次上网日期，不代表论文的发表时间）