SHRINKAGE REDUCING AGENT FOR GEOPOLYMER AND CURED GEOPOLYMER

• Main Authors: OKADA TOMOHISA, KITAZATO SINGO, HASHIZUME SUSUMU, SUGA AKIRA, LI ZHUGUO
• Format: Patent
• Language: English; Japanese
• Published: 27.09.2018
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

PROBLEM TO BE SOLVED: To provide a shrinkage reducing agent for a geopolymer having an excellent stability against an alkaline solution and capable of suppressing drying shrinkage of a cured geopolymer.SOLUTION: The shrinkage reducing agent for a geopolymer according to the present invention contains an ether compound having a structure represented by a formula (1). RO-(CHO)R(1) [Rand Rare each independently H or a C1 to 4 alkyl group; n is an integer from 1 to 20; where n is an integer of 2 to 20 in the case that both of Rand Rrepresent a hydrogen atom].SELECTED DRAWING: None 【課題】アルカリ溶液に対する安定性に優れ、ジオポリマー硬化体の乾燥収縮を抑制できる、ジオポリマー用収縮低減剤。【解決手段】式（１）で表される構造を有するエーテル系化合物を含むジオポリマー用収縮低減剤。Ｒ１Ｏ−（Ｃ２Ｈ４Ｏ）ｎ−Ｒ２（１）［Ｒ１及びＲ２は夫々独立して、Ｈ又はＣ１〜４のアルキル基；ｎは１〜２０の整数；但し、Ｒ１及びＲ２が何れも水素原子を表す場合、ｎは２〜２０の整数］【選択図】なし