A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ЦЕМЕНТНАЯ КОМПОЗИЦИЯ И СПОСОБ ПОЛУЧЕНИЯ ОТВЕРЖДЕННОГО ЦЕМЕНТНОГО ИЗДЕЛИЯ С ИСПОЛЬЗОВАНИЕМ ЭТОЙ КОМПОЗИЦИИ
Provided is a cement composition that has high fluidity (for example, a 0-drop flow value of 200 mm or more) before curing and exhibits high compressive strength (for example, 320 N/mm 2 or more) after curing. The cement composition includes a cement, a silica fume having a BET specific surface area of from 10 m 2 /g to 25 m 2 /g, an inorganic powder having a 50% cumulative particle size of from 0.8 µm to 5 µm, a fine aggregate having a maximum particle size of 1.2 mm or less, a water reducing agent, an antifoaming agent, and water. The ratio of the cement is from 55 vol% to 65 vol%, the ratio of the silica fume is from 5 vol% to 25 vol%, and the ratio of the inorganic powder is from 15 vol% to 35 vol% in the total amount of 100 vol% of the cement, the silica fume, and the inorganic powder.
ЦЕМЕНТНАЯ КОМПОЗИЦИЯ И СПОСОБ ПОЛУЧЕНИЯ ОТВЕРЖДЕННОГО ЦЕМЕНТНОГО ИЗДЕЛИЯ С ИСПОЛЬЗОВАНИЕМ ЭТОЙ КОМПОЗИЦИИ
Provided is a cement composition that has high fluidity (for example, a 0-drop flow value of 200 mm or more) before curing and exhibits high compressive strength (for example, 320 N/mm 2 or more) after curing. The cement composition includes a cement, a silica fume having a BET specific surface area of from 10 m 2 /g to 25 m 2 /g, an inorganic powder having a 50% cumulative particle size of from 0.8 µm to 5 µm, a fine aggregate having a maximum particle size of 1.2 mm or less, a water reducing agent, an antifoaming agent, and water. The ratio of the cement is from 55 vol% to 65 vol%, the ratio of the silica fume is from 5 vol% to 25 vol%, and the ratio of the inorganic powder is from 15 vol% to 35 vol% in the total amount of 100 vol% of the cement, the silica fume, and the inorganic powder.
ЦЕМЕНТНАЯ КОМПОЗИЦИЯ И СПОСОБ ПОЛУЧЕНИЯ ОТВЕРЖДЕННОГО ЦЕМЕНТНОГО ИЗДЕЛИЯ С ИСПОЛЬЗОВАНИЕМ ЭТОЙ КОМПОЗИЦИИ
2018-10-01
Patent
Electronic Resource
Russian
IPC:
C04B
Kalk
,
LIME
КЕРАМИЧЕСКАЯ КОМПОЗИЦИЯ И СПОСОБ ПОЛУЧЕНИЯ УКАЗАННОЙ КОМПОЗИЦИИ
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ИЗДЕЛИЯ ИЗ ДРЕВЕСИНЫ С ПОКРЫТИЕМ И СПОСОБ ПОЛУЧЕНИЯ ИЗДЕЛИЙ ИЗ ДРЕВЕСИНЫ С ПОКРЫТИЕМ
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