A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ADDITIVE FOR CEMENT, CEMENT ADMIXTURE, CEMENT COMPOSITION, MOLDED ARTICLE, AND STRENGTH IMPROVEMENT METHOD FOR MOLDED ARTICLE
Provided is an additive that is for concrete and that, when added to a cement composition, allows the cement composition to have low viscosity and high fluidity during an early period of casting, and that, when added to a cement composition, improves the long-term strength of concrete or the like. This additive for cement contains a water absorbent resin, where the water absorbent resin is obtained by polymerization of a monomer mixture including 50 mol% or more of a nonionic non-crosslinkable monomer and 0.1 mol% or more of a nonionic crosslinkable monomer, and the contained amount of an anionic monomer in the monomer mixture is 20 mol% or less.
提供一种混凝土用添加剂，所述混凝土用添加剂即使添加，在浇注时的初期水泥组合物的粘性也低，另外流动性高，另外，通过添加，混凝土等的长期强度提高。一种水泥用添加剂，其含有吸水性树脂，其中，所述吸水性树脂是将含有非离子型非交联性单体50摩尔％以上及非离子型交联性单体0.1摩尔％以上的单体混合物进行聚合而成的，在所述单体混合物中，阴离子型单体的含量为20摩尔％以下。
ADDITIVE FOR CEMENT, CEMENT ADMIXTURE, CEMENT COMPOSITION, MOLDED ARTICLE, AND STRENGTH IMPROVEMENT METHOD FOR MOLDED ARTICLE
Provided is an additive that is for concrete and that, when added to a cement composition, allows the cement composition to have low viscosity and high fluidity during an early period of casting, and that, when added to a cement composition, improves the long-term strength of concrete or the like. This additive for cement contains a water absorbent resin, where the water absorbent resin is obtained by polymerization of a monomer mixture including 50 mol% or more of a nonionic non-crosslinkable monomer and 0.1 mol% or more of a nonionic crosslinkable monomer, and the contained amount of an anionic monomer in the monomer mixture is 20 mol% or less.
提供一种混凝土用添加剂，所述混凝土用添加剂即使添加，在浇注时的初期水泥组合物的粘性也低，另外流动性高，另外，通过添加，混凝土等的长期强度提高。一种水泥用添加剂，其含有吸水性树脂，其中，所述吸水性树脂是将含有非离子型非交联性单体50摩尔％以上及非离子型交联性单体0.1摩尔％以上的单体混合物进行聚合而成的，在所述单体混合物中，阴离子型单体的含量为20摩尔％以下。
ADDITIVE FOR CEMENT, CEMENT ADMIXTURE, CEMENT COMPOSITION, MOLDED ARTICLE, AND STRENGTH IMPROVEMENT METHOD FOR MOLDED ARTICLE
水泥用添加剂、水泥混合剂、水泥组合物、成型体、以及成型体的强度提高方法
TAKAYAMA TAKESHI (author) / ISHIZAKI KUNIHIKO (author) / SAKAMOTO SHIGERU (author)
2021-11-16
Patent
Electronic Resource
Chinese
| European Patent Office | 2020
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| European Patent Office | 2020