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A platform for research: civil engineering, architecture and urbanism
FAST-HARDENING CONCRETE AND PRODUCING METHOD OF FAST-HARDENING CONCRETE
To obtain a fast-hardening concrete having good fluidity by using a powdery polycarboxylic acid-based water reducing agent with good solubility even in the case of post-addition.SOLUTION: The fast-hardening concrete contains at least a fast-curing admixture and the powdery polycarboxylic acid-based water reducing agent having a particle content of 5 to 30 vol.% of a particle size 21 μm or less, and a particle content of 10 to 40 vol.% of a particle size of 181 μm or more.SELECTED DRAWING: None
【課題】後添加でも溶解性が良好な粉体状ポリカルボン酸系減水剤を用いた、良好な流動性を有する速硬コンクリートを得ること。【解決手段】少なくとも、速硬性混和材と、２１μｍ以下の粒子含有率が５～３０体積％であり、且つ１８１μｍ以上の粒子含有率が１０～４０体積％である粉体状ポリカルボン酸系減水剤とを含む速硬コンクリート。【選択図】なし
FAST-HARDENING CONCRETE AND PRODUCING METHOD OF FAST-HARDENING CONCRETE
To obtain a fast-hardening concrete having good fluidity by using a powdery polycarboxylic acid-based water reducing agent with good solubility even in the case of post-addition.SOLUTION: The fast-hardening concrete contains at least a fast-curing admixture and the powdery polycarboxylic acid-based water reducing agent having a particle content of 5 to 30 vol.% of a particle size 21 μm or less, and a particle content of 10 to 40 vol.% of a particle size of 181 μm or more.SELECTED DRAWING: None
【課題】後添加でも溶解性が良好な粉体状ポリカルボン酸系減水剤を用いた、良好な流動性を有する速硬コンクリートを得ること。【解決手段】少なくとも、速硬性混和材と、２１μｍ以下の粒子含有率が５～３０体積％であり、且つ１８１μｍ以上の粒子含有率が１０～４０体積％である粉体状ポリカルボン酸系減水剤とを含む速硬コンクリート。【選択図】なし
FAST-HARDENING CONCRETE AND PRODUCING METHOD OF FAST-HARDENING CONCRETE
速硬コンクリートおよび速硬コンクリートの製造方法
KANABORI YUGO (author) / NAGASHIO SEISUKE (author)
2022-03-23
Patent
Electronic Resource
Japanese
FAST HARDENING CEMENT CONCRETE COMPOSITION FOR EMERGENCY MAINTENANCE
| European Patent Office | 2021
NTIS | 1982
Fast hardening, early light loading and surface cracking resistance concrete
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Engineering Index Backfile | 1928