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DRY SHRINKAGE REDUCER FOR PREMIXED MORTAR, PREMIXED MORTAR AND CEMENT HARDENED BODY
PROBLEM TO BE SOLVED: To provide a dry shrinkage reducer for premixed mortar exhibiting an effect for inhibiting high dry shrinkage even when a unit volume mass is small, and inhibiting the dry shrinkage for long term.SOLUTION: There is provided a dry shrinkage reducer for premixed mortar consisting of a cationic surfactant represented by the formula (1): (NRRRR)X(1), where Ris C12 to 18 alkyl group with composition ratio of the alkyl group having 14 carbon atoms or composition ratio of the alkyl group having 16 carbon atoms in the alkyl group of 95 mass% or more, Rand Rare each independently H or a methyl group, Ris H or a benzyl group, and X is a counter ion.SELECTED DRAWING: None
【課題】単位容積質量が小さくても高い乾燥収縮を抑制する効果を発現し、長期的に乾燥収縮を抑制するプレミックスモルタル用乾燥収縮低減剤の提供。【解決手段】式（１）で表されるカチオン系界面活性剤からなる、プレミックスモルタル用乾燥収縮低減剤。（ＮＲ１Ｒ２Ｒ３Ｒ４）＋Ｘ−・・・（１）（Ｒ１はＣ１２〜１８のアルキル基、かつ前記アルキル基中に占める炭素数１４のアルキル基の組成比又は炭素数１６のアルキル基の組成比が９５質量％以上；Ｒ２及びＲ３は各々独立にＨ又はメチル基；Ｒ４はＨ又はベンジル基；Ｘは対イオン）【選択図】なし
DRY SHRINKAGE REDUCER FOR PREMIXED MORTAR, PREMIXED MORTAR AND CEMENT HARDENED BODY
PROBLEM TO BE SOLVED: To provide a dry shrinkage reducer for premixed mortar exhibiting an effect for inhibiting high dry shrinkage even when a unit volume mass is small, and inhibiting the dry shrinkage for long term.SOLUTION: There is provided a dry shrinkage reducer for premixed mortar consisting of a cationic surfactant represented by the formula (1): (NRRRR)X(1), where Ris C12 to 18 alkyl group with composition ratio of the alkyl group having 14 carbon atoms or composition ratio of the alkyl group having 16 carbon atoms in the alkyl group of 95 mass% or more, Rand Rare each independently H or a methyl group, Ris H or a benzyl group, and X is a counter ion.SELECTED DRAWING: None
【課題】単位容積質量が小さくても高い乾燥収縮を抑制する効果を発現し、長期的に乾燥収縮を抑制するプレミックスモルタル用乾燥収縮低減剤の提供。【解決手段】式（１）で表されるカチオン系界面活性剤からなる、プレミックスモルタル用乾燥収縮低減剤。（ＮＲ１Ｒ２Ｒ３Ｒ４）＋Ｘ−・・・（１）（Ｒ１はＣ１２〜１８のアルキル基、かつ前記アルキル基中に占める炭素数１４のアルキル基の組成比又は炭素数１６のアルキル基の組成比が９５質量％以上；Ｒ２及びＲ３は各々独立にＨ又はメチル基；Ｒ４はＨ又はベンジル基；Ｘは対イオン）【選択図】なし
DRY SHRINKAGE REDUCER FOR PREMIXED MORTAR, PREMIXED MORTAR AND CEMENT HARDENED BODY
プレミックスモルタル用乾燥収縮低減剤、プレミックスモルタルおよびセメント硬化体
MATSUI TATSUYA (author)
2016-11-10
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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