Open AccessPhysical and chemical characterization of Lopburi clay before and after calcination
Author(s) -
Phakin Chomyen,
Sakprayut Sinthupinyo,
Busaya Chamnankid,
Wilasinee Hanpongpun,
Ar Chaipanich
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1380/1/012067
Subject(s) - calcination , metakaolin , clay minerals , kaolinite , materials science , pozzolan , mineralogy , chemical engineering , scanning electron microscope , amorphous solid , portland cement , cement , metallurgy , composite material , chemistry , crystallography , biochemistry , engineering , catalysis
Supplementary cementitous materials (SCMs) may be used as a substitution of Portland cement to reduce CO 2 emissions in the cement industry. One of promising Supplementary cementituous materials for practical use in the construction industry is calcined clay. Clay must be calcined to form high reaxtivity pozzolanic materials from mineral addition known as amorphous metakaolin (AS 2 ). Calcined clay may be used to improve mechanical properties, durability and some characteristic. This research aimed to study clay mineralogy and chemical composition of Lopburi clay in Thailand. Physical and chemical characterizations of Lopburi clay before and after calcination were investigated using X-Ray Diffraction, Qualitative X-Ray Diffraction (QXRD), Scanning Electron Microscopy (SEM) and X-Ray Fluorescene. The results showed that Lopburi clay main major oxides aed silicon dioxide (SiO 2 ), alumina oxide (Al 2 O 3 ) and iron oxide (Fe 2 O 3 ) furthermore, Lopburi clay is kaolinite clay.