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DRY SHRINKAGE REDUCING AGENT COMPOSITION FOR PREMIXED MORTAR, PREMIXED MORTAR, AND CEMENT CURED BODY USING THE SAME
PROBLEM TO BE SOLVED: To provide a dry shrinkage reducing agent composition for premixed mortar that suppresses dry shrinkage and strength degradation, and has excellent working efficiency in fresh mortar.SOLUTION: A dry shrinkage reducing agent composition for premixed mortar is composed of 30-90 mass% of polyethylene glycol (A) in formula (1), and 10-70 mass% of polyether-impregnated powder (B). The polyether-impregnated powder (B) is composed of polyether (B1) in formula (2) and oil-absorbing inorganic powder (B2). A mass ratio ((B1)/(B2)) is 40/60 to 70/30. HO-(CHO)a-H ...(1) (in formula (1), a denotes an average addition mole number of oxyethylene group, and 35≤a≤500)
【課題】乾燥収縮を抑制し、強度低下を抑制し、フレッシュモルタル時の作業性に優れたプレミックスモルタル用乾燥収縮低減剤組成物を提供する。【解決手段】本組成物は、式（１）のポリエチレングリコール（Ａ）３０〜９０質量％、およびポリエーテル含浸粉末（Ｂ）１０〜７０質量％からなり、ポリエーテル含浸粉末（Ｂ）が、式（２）のポリエーテル（Ｂ１）と吸油性無機粉末（Ｂ２）からなり、質量比（（Ｂ１）／（Ｂ２））が４０／６０〜７０／３０である。 ＨＯ−（Ｃ２Ｈ４Ｏ）ａ−Ｈ・・・（１） （式（１）において、ａは、オキシエチレン基の平均付加モル数を表し、３５≰ａ≰５００である）【化１】【選択図】 なし
DRY SHRINKAGE REDUCING AGENT COMPOSITION FOR PREMIXED MORTAR, PREMIXED MORTAR, AND CEMENT CURED BODY USING THE SAME
PROBLEM TO BE SOLVED: To provide a dry shrinkage reducing agent composition for premixed mortar that suppresses dry shrinkage and strength degradation, and has excellent working efficiency in fresh mortar.SOLUTION: A dry shrinkage reducing agent composition for premixed mortar is composed of 30-90 mass% of polyethylene glycol (A) in formula (1), and 10-70 mass% of polyether-impregnated powder (B). The polyether-impregnated powder (B) is composed of polyether (B1) in formula (2) and oil-absorbing inorganic powder (B2). A mass ratio ((B1)/(B2)) is 40/60 to 70/30. HO-(CHO)a-H ...(1) (in formula (1), a denotes an average addition mole number of oxyethylene group, and 35≤a≤500)
【課題】乾燥収縮を抑制し、強度低下を抑制し、フレッシュモルタル時の作業性に優れたプレミックスモルタル用乾燥収縮低減剤組成物を提供する。【解決手段】本組成物は、式（１）のポリエチレングリコール（Ａ）３０〜９０質量％、およびポリエーテル含浸粉末（Ｂ）１０〜７０質量％からなり、ポリエーテル含浸粉末（Ｂ）が、式（２）のポリエーテル（Ｂ１）と吸油性無機粉末（Ｂ２）からなり、質量比（（Ｂ１）／（Ｂ２））が４０／６０〜７０／３０である。 ＨＯ−（Ｃ２Ｈ４Ｏ）ａ−Ｈ・・・（１） （式（１）において、ａは、オキシエチレン基の平均付加モル数を表し、３５≰ａ≰５００である）【化１】【選択図】 なし
DRY SHRINKAGE REDUCING AGENT COMPOSITION FOR PREMIXED MORTAR, PREMIXED MORTAR, AND CEMENT CURED BODY USING THE SAME
プレミックスモルタル用乾燥収縮低減剤組成物、プレミックスモルタルおよびそれを用いたセメント硬化体
MATSUI TATSUYA (author) / MIYAKE KENTARO (author)
2015-10-22
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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