HIGH-STRENGTH CEMENT MORTAR COMPOSITION

• Main Authors: KIRIYAMA HIROKAZU, TAMATAKI KOJI, SATO YOSHIHIDE
• Format: Patent
• Language: English; Japanese
• Published: 05.07.2018
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; PERFORMING OPERATIONS; REFRACTORIES; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING CEMENT, CLAY, OR STONE

PROBLEM TO BE SOLVED: To provide a high-strength cement mortar composition having high compressive strength without needing large and special manufacturing equipment.SOLUTION: The high-strength cement mortar composition contains a cement, inorganic fine powder, water, a fine aggregate, a water-reducing admixture, an antifoaming agent, and metal fine powder. The cement contains 10.0-70.0 mass% of CS and 10.0-70.0 mass% of CS, and the inorganic fine powder contains a silica fume. The production method of a high-strengh cement mortar hardening body contains: a precuring step of curing the high-strength cement mortar composition in gas of 15-25°C for 1-5 days; a primary curing step of curing in water of 20-60°C for 1-7 days; a secondary curing step of curing in water of 80-100°C for 5-21 days; and a tertiary curing step of curing in gas of 80-200°C for 5-21 days.SELECTED DRAWING: None 【課題】大掛かりで特殊な製造設備を必要とせず、高い圧縮強度を有す高強度セメントモルタル組成物を提供することを目的とする。【解決手段】セメントと、無機質微粉末と、水と、細骨材と、減水剤と、消泡剤と、金属微粉末とを含む高強度セメントモルタル組成物であって、前記セメントは、Ｃ３Ｓを１０．０質量％〜７０．０質量％及びＣ２Ｓを１０．０質量％〜７０．０質量％含有し、前記無機質微粉末はシリカフュームを含有する、高強度セメントモルタル組成物である。また、前記高強度セメントモルタル組成物を、１５〜２５℃の気中で１日間〜５日間養生を行う前養生工程と、２０〜６０℃の水中で１日間〜７日間養生を行う一次養生工程と、８０℃〜１００℃の水中で５日間〜２１日間養生を行う二次養生工程と、８０℃〜２００℃の気中で５〜２１日間養生を行う三次養生工程を含む、高強度セメントモルタル硬化体の製造方法である。【選択図】なし