A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ULTRA-LOW SHRINKAGE CONCRETE
PROBLEM TO BE SOLVED: To provide an ultra-low shrinkage concrete having excellent dry shrinkage performance in such a manner that a dry shrinkage rate at a material age of 6 months is 1.5×10or lower.SOLUTION: Provided is an ultra-low shrinkage concrete prepared using cement, a coarse aggregate, a fine aggregate and water as main materials, in which a dry shrinkage rate at a material age of 6 months is 1.5×10, limestones are used as raw materials of both the coarse aggregate and the fine aggregate, and further, an admixture having a viscosity of 10 to 200 mPa s (20°C) is blended to have binder-water ratios of 1.54 to 2.86.SELECTED DRAWING: Figure 1
【課題】材齢６ヶ月における乾燥収縮率が１．５×１０−４以下となる優れた乾燥収縮性能を有する超低収縮コンクリートを実現する。【解決手段】セメントと粗骨材と細骨材と水を主材として調製され、材齢６ヶ月における乾燥収縮率が１．５×１０−４以下となる超低収縮コンクリートであって、前記粗骨材および前記細骨材の原料としていずれも石灰岩を用いるとともに、粘度が１０〜２００ｍＰａ・ｓ（２０℃）の混和材料を配合し、結合材水比を１．５４〜２．８６とする。【選択図】図１
ULTRA-LOW SHRINKAGE CONCRETE
PROBLEM TO BE SOLVED: To provide an ultra-low shrinkage concrete having excellent dry shrinkage performance in such a manner that a dry shrinkage rate at a material age of 6 months is 1.5×10or lower.SOLUTION: Provided is an ultra-low shrinkage concrete prepared using cement, a coarse aggregate, a fine aggregate and water as main materials, in which a dry shrinkage rate at a material age of 6 months is 1.5×10, limestones are used as raw materials of both the coarse aggregate and the fine aggregate, and further, an admixture having a viscosity of 10 to 200 mPa s (20°C) is blended to have binder-water ratios of 1.54 to 2.86.SELECTED DRAWING: Figure 1
【課題】材齢６ヶ月における乾燥収縮率が１．５×１０−４以下となる優れた乾燥収縮性能を有する超低収縮コンクリートを実現する。【解決手段】セメントと粗骨材と細骨材と水を主材として調製され、材齢６ヶ月における乾燥収縮率が１．５×１０−４以下となる超低収縮コンクリートであって、前記粗骨材および前記細骨材の原料としていずれも石灰岩を用いるとともに、粘度が１０〜２００ｍＰａ・ｓ（２０℃）の混和材料を配合し、結合材水比を１．５４〜２．８６とする。【選択図】図１
ULTRA-LOW SHRINKAGE CONCRETE
超低収縮コンクリート
TSUJINO MASATO (author) / HASHIDA HIROSHI (author) / NISHIDA AKIRA (author) / KATAYAMA YUKIO (author) / YUASA TATSUKI (author)
2018-07-19
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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