%R 10.1201/b21942-107
%D 2016
%J Engineering Challenges for Sustainable Future - Proceedings of the 3rd International Conference on Civil, offshore and Environmental Engineering, ICCOEE 2016
%L scholars7531
%O cited By 0; Conference of 3rd International Conference on Civil, offshore and Environmental Engineering, ICCOEE 2016 ; Conference Date: 15 August 2016 Through 17 August 2016; Conference Code:180169
%K Field emission microscopes; Grinding (machining); Hydrated lime; Offshore oil well production; Scanning electron microscopy; Specific surface area, Electrical conductivity measurements; Field emission scanning electron microscopy; High speed milling; Powder samples; Pozzolanic reactivity; Rice husk ash; Short periods; Specific surface area (SSA), Milling (machining)
%X An investigation of pozzolanic reactivity of ultrafine treated rice husk ash (UFTRHA) was evaluated using electrical conductivity measurement. This paper is aimed to identify the effect of grinding duration via high speed milling process to the pozzolanic reactivity level. This pozzolanic reactivity assessment was completed by incorporating UFTRHA powder samples prepared at several milling duration in saturated portlandite solution at 40°C. Structure of these mesoporous substances after grinding processwere captured using Field Emission Scanning Electron Microscopy (FESEM) accordingly. Based on the findings, experimental results analysis reveal that UFTRHA ground at 15 min has highest pozzolanic reactivity level among all specimens. Hence, short period of grinding is sufficient to attain huge amount of specific surface area (SSA) by using high speed milling process. Excessive grinding aid i.e. 60 min produced lower specific surface area hence lower pozzolanic reactivity level. Larger amount of specific surface area leads towards vigorous and higher pozzolanic reactivity. © 2016 Taylor & Francis Group, London.
%P 527-530
%I CRC Press/Balkema
%A M.F. Nuruddin
%A S.A. Saad
%A N. Shafiq
%A M. Ali
%T Milling time influence of ultrafine treated rice husk ash to pozzolanic reactivity in portlandite