%0 Journal Article
%T Geopolymers Using Rice Husk Silica and Metakaolin Derivatives; Preparation and Their Characteristics
%A Francisco J. L¨®pez
%A Satoshi Sugita
%A Motohiro Tagaya
%A Takaomi Kobayashi
%J Journal of Materials Science and Chemical Engineering
%P 35-43
%@ 2327-6053
%D 2014
%I Scientific Research Publishing
%R 10.4236/msce.2014.25006
%X <p style=\"text-align:justify;\">
	<span style=\"font-size:10.0pt;font-family:;\" \"=\"\"><span style=\"font-family:Verdana;\">The effect of the
amorphous silica derived from biomass rice husk (RH) in the alkaline activating
solution on the properties was investigated in geopolymerization process, when
metakaolin was used as the aluminum source from metakaolin (MK). With changing a
molar ratio of SiO</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\">/Al</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\">O</span><sub><span style=\"font-family:Verdana;\">3</span></sub><span style=\"font-family:Verdana;\"> = 3.0 and 10, the
curing in the preparation of geopolymers was carried out at 85<span style=\"line-height:normal;text-align:justify;white-space:normal;\">&amp;#176</span>C, 100</span><span style=\"color:#000000;\"><span style=\"color:#000000;font-size:12px;line-height:normal;white-space:normal;\">&amp;#176</span></span><span style=\"font-family:Verdana;\">C and 200<span style=\"line-height:normal;text-align:justify;white-space:normal;\">&amp;#176</span>C.
Viscoelastic properties of the geopolymer pastes including SiO</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\"> and
Al</span><sub><span style=\"font-family:Verdana;\">2</span></sub><span style=\"font-family:Verdana;\">O</span><sub><span style=\"font-family:Verdana;\">3</span></sub><span style=\"font-family:Verdana;\"> components suggested that the alkaline activation
was found in higher RH silica source. The mineralogical and microstructural
characteristics of the cured products were evaluated to be amorphous
aluminosilicate.</span></span> 
</p>
%K Rice Husk
%K Silica
%K Metakaolin
%K Geopolymer
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=46283