A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT COMPOSITION, AND ULTRA-HIGH STRENGTH AND LOW SHRINKAGE MORTAR COMPOSITION
To provide an ultra-high-strength and low-shrinkage cement composition capable of suppressing an amount of shrinkage while maintaining sufficient compressive strength even for ultra-high-strength mortar or concrete having a compressive strength of over 100 N/mm2.SOLUTION: The cement composition contains cement, the following two types of glassy materials, and anhydrous gypsum. (1)Silicate glass powder having a vitrification ratio of 80% or more, and SiO2 of 90 mass% or more as a chemical composition of a vitreous portion, (2)Aluminosilicate glass powder having a vitrification ratio of 80% or more, and Al2O3 of 40 to 50 mass% and SiO2 of 50 to 60 mass% as a chemical composition of the vitreous portion.SELECTED DRAWING: None
【課題】圧縮強度１００Ｎ／ｍｍ２を超えるような超高強度モルタル・コンクリートであっても、十分な圧縮強度を維持したまま収縮量を抑制可能な、超高強度・低収縮セメント組成物を提供すること。【解決手段】セメントと、下記の２種類のガラス質材料と、無水石膏とを含有するセメント組成物。（１）ガラス化率が８０％以上であって、ガラス質部分の化学組成がＳｉＯ２９０質量％以上であるシリケートガラス粉末（２）ガラス化率が８０％以上であって、ガラス質部分の化学組成がＡｌ２Ｏ３４０〜５０質量％及びＳｉＯ２５０〜６０質量％であるアルミノシリケートガラス粉末【選択図】 なし
CEMENT COMPOSITION, AND ULTRA-HIGH STRENGTH AND LOW SHRINKAGE MORTAR COMPOSITION
To provide an ultra-high-strength and low-shrinkage cement composition capable of suppressing an amount of shrinkage while maintaining sufficient compressive strength even for ultra-high-strength mortar or concrete having a compressive strength of over 100 N/mm2.SOLUTION: The cement composition contains cement, the following two types of glassy materials, and anhydrous gypsum. (1)Silicate glass powder having a vitrification ratio of 80% or more, and SiO2 of 90 mass% or more as a chemical composition of a vitreous portion, (2)Aluminosilicate glass powder having a vitrification ratio of 80% or more, and Al2O3 of 40 to 50 mass% and SiO2 of 50 to 60 mass% as a chemical composition of the vitreous portion.SELECTED DRAWING: None
【課題】圧縮強度１００Ｎ／ｍｍ２を超えるような超高強度モルタル・コンクリートであっても、十分な圧縮強度を維持したまま収縮量を抑制可能な、超高強度・低収縮セメント組成物を提供すること。【解決手段】セメントと、下記の２種類のガラス質材料と、無水石膏とを含有するセメント組成物。（１）ガラス化率が８０％以上であって、ガラス質部分の化学組成がＳｉＯ２９０質量％以上であるシリケートガラス粉末（２）ガラス化率が８０％以上であって、ガラス質部分の化学組成がＡｌ２Ｏ３４０〜５０質量％及びＳｉＯ２５０〜６０質量％であるアルミノシリケートガラス粉末【選択図】 なし
CEMENT COMPOSITION, AND ULTRA-HIGH STRENGTH AND LOW SHRINKAGE MORTAR COMPOSITION
セメント組成物及び超高強度・低収縮モルタル組成物
NAKAJIMA YUTAKA (author) / NAKAHARA KAZUHIKO (author)
2021-09-16
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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