A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SHRINKAGE REDUCING AGENT
To provide shrinkage reducing agents which render excellent shrinkage reducing effect and frost-thaw resistance to cement compositions such as mortar and concrete without entraining excessive air, and exhibit excellent solution stability. The shrink-age reducing agent comprises a (poly)alkylene compound having an unsaturated bond represented by the formula (1 ): R2O-R1-O--(A1O)n -R3 (1) -(A2O)m -R4 (2) (wherein R1 is a C2-10 hydrocarbon group having an unsaturated bond; R2 is hydrogen or the formula (2); R3 and R4 are each independently hydrogen or a C1-8 alkyl group; A1O and A2O are one or more kinds of C2-4 oxyalkylene groups; and n and m are mean addition numbers of moles Of A1O and A2O, respectively, and 1 to 20).
SHRINKAGE REDUCING AGENT
To provide shrinkage reducing agents which render excellent shrinkage reducing effect and frost-thaw resistance to cement compositions such as mortar and concrete without entraining excessive air, and exhibit excellent solution stability. The shrink-age reducing agent comprises a (poly)alkylene compound having an unsaturated bond represented by the formula (1 ): R2O-R1-O--(A1O)n -R3 (1) -(A2O)m -R4 (2) (wherein R1 is a C2-10 hydrocarbon group having an unsaturated bond; R2 is hydrogen or the formula (2); R3 and R4 are each independently hydrogen or a C1-8 alkyl group; A1O and A2O are one or more kinds of C2-4 oxyalkylene groups; and n and m are mean addition numbers of moles Of A1O and A2O, respectively, and 1 to 20).
SHRINKAGE REDUCING AGENT
AGENT REDUCTEUR DE RETRAIT
IWATA RAITA (author) / SUGIYAMA TOMOMI (author) / SUGAMATA TAKUMI (author)
2015-11-24
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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Preparation method of water-reducing shrinkage-reducing agent
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