Effect of Dry Mix Compaction Pressure on Hydration Mechanisms and Strength Growth of Fly Ash Cement
碩士 === 國立交通大學 === 土木工程研究所 === 83 === The thesis investigates the compressive strength of hardened paste and mortar specimens mixed with cement and class F Fly Ash ( a product of Hsin-Ta Thermal Power Plant of Taiwan Power Company ) . The specimens are p...
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ndltd-TW-083NCTU00150042015-10-13T12:53:37Z http://ndltd.ncl.edu.tw/handle/27647269610900276184 Effect of Dry Mix Compaction Pressure on Hydration Mechanisms and Strength Growth of Fly Ash Cement 乾拌夯實壓力對高溫蒸汽催化飛灰水泥的強度發展與水化機理 Chia-Yin Huang 黃甲寅 碩士 國立交通大學 土木工程研究所 83 The thesis investigates the compressive strength of hardened paste and mortar specimens mixed with cement and class F Fly Ash ( a product of Hsin-Ta Thermal Power Plant of Taiwan Power Company ) . The specimens are prepared under various dry-mix compaction pressure . These specimens were hardened inside autoclave through different duration and high temperature steam catalytic process.These paste specimens was analyzed with ther- mogravimetry ,nuclear magnetic resonance,and scanning electron microscope to verify its hydration mechanisms and pozzolanic reaction. Based on experimental results , it is concluded that maximum compressive strength was obtained when dry-mix compaction pre- ssure was around 4 kg/cm~^2~z , and catalytic temperature was 180℃.In the early stage of catalysis,more fly ash cement used with lower degree of hydration would result in lower amount of CH and weaker strength . As duration of catalysis increased , both degree of hydration and amount of CH would decrease. However,after 12 hours the amount of CH would decrease, due to pozzolanic reaction compressive strength of the specimens would increase.After 30 hours,the strength of specimens with 40 % fly ash was greater than the strength of specimens without fly ash. Dry-mix pure fly ash specimens showed no strength at all. Yaw-Nan Peng 彭耀南 1995 學位論文 ; thesis 68 zh-TW |
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zh-TW |
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碩士 === 國立交通大學 === 土木工程研究所 === 83 === The thesis investigates the compressive strength of hardened
paste and mortar specimens mixed with cement and class F Fly
Ash ( a product of Hsin-Ta Thermal Power Plant of Taiwan Power
Company ) . The specimens are prepared under various dry-mix
compaction pressure . These specimens were hardened inside
autoclave through different duration and high temperature steam
catalytic process.These paste specimens was analyzed with ther-
mogravimetry ,nuclear magnetic resonance,and scanning electron
microscope to verify its hydration mechanisms and pozzolanic
reaction. Based on experimental results , it is concluded that
maximum compressive strength was obtained when dry-mix
compaction pre- ssure was around 4 kg/cm~^2~z , and catalytic
temperature was 180℃.In the early stage of catalysis,more fly
ash cement used with lower degree of hydration would result in
lower amount of CH and weaker strength . As duration of
catalysis increased , both degree of hydration and amount of CH
would decrease. However,after 12 hours the amount of CH would
decrease, due to pozzolanic reaction compressive strength of
the specimens would increase.After 30 hours,the strength of
specimens with 40 % fly ash was greater than the strength of
specimens without fly ash. Dry-mix pure fly ash specimens
showed no strength at all.
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author2 |
Yaw-Nan Peng |
author_facet |
Yaw-Nan Peng Chia-Yin Huang 黃甲寅 |
author |
Chia-Yin Huang 黃甲寅 |
spellingShingle |
Chia-Yin Huang 黃甲寅 Effect of Dry Mix Compaction Pressure on Hydration Mechanisms and Strength Growth of Fly Ash Cement |
author_sort |
Chia-Yin Huang |
title |
Effect of Dry Mix Compaction Pressure on Hydration Mechanisms and Strength Growth of Fly Ash Cement |
title_short |
Effect of Dry Mix Compaction Pressure on Hydration Mechanisms and Strength Growth of Fly Ash Cement |
title_full |
Effect of Dry Mix Compaction Pressure on Hydration Mechanisms and Strength Growth of Fly Ash Cement |
title_fullStr |
Effect of Dry Mix Compaction Pressure on Hydration Mechanisms and Strength Growth of Fly Ash Cement |
title_full_unstemmed |
Effect of Dry Mix Compaction Pressure on Hydration Mechanisms and Strength Growth of Fly Ash Cement |
title_sort |
effect of dry mix compaction pressure on hydration mechanisms and strength growth of fly ash cement |
publishDate |
1995 |
url |
http://ndltd.ncl.edu.tw/handle/27647269610900276184 |
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