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A platform for research: civil engineering, architecture and urbanism
Inert micro-powder concrete and preparation method thereof
The invention discloses inert micro-powder concrete and a preparation method thereof, the inert micro-powder concrete comprises the following components in parts by mass: 100-120 parts of cement, 20-40 parts of inert micro-powder, 0-20 parts of silica fume, 125-160 parts of fine aggregate, 20-27 parts of water and 3-7 parts of a water reducing agent, the inert micro-powder is hard mother rock powder with SiO2 content of not less than 65% and Al2O3 content of 0.5-15%, or stone powder or tailing powder of machine-made sandstone produced by hard mother rock; and the specific surface area is 2000-10000 m <2>/kg. The preparation method comprises the following steps: uniformly mixing and stirring the cement, the inert micro powder and the silica fume, adding the fine aggregate, uniformly stirring, adding the water and the water reducing agent, uniformly stirring, molding, and curing. The inert micro-powder concrete is ultra-high-performance concrete, is good in fluidity and rheological property, has strength meeting national standard requirements, is excellent in comprehensive performance, meets actual scene application requirements, and is low in cost and easy to industrially popularize.
本发明公开一种惰性微末混凝土及其制备方法，按质量份数计，包括以下组分：水泥100～120份，惰性微末20～40份，硅灰0～20份，细集料125～160份，水20～27份，减水剂3～7份，其中：惰性微末为SiO2含量不低于65％，Al2O3含量为0.5％～15％的硬质母岩粉，或者硬质母岩生产机制砂石的石粉或尾矿粉；比表面积为2000‑10000m2/kg。先将水泥、惰性微末、硅灰混合搅拌均匀，然后加入细集料搅拌均匀，再加入水和减水剂搅拌均匀，成型后养护即可。该惰性微末混凝土为超高性能混凝土，流动性和流变性好，强度符合国标要求，综合性能优异，符合实际场景应用需求，且成本低廉，易于工业化推广。
Inert micro-powder concrete and preparation method thereof
The invention discloses inert micro-powder concrete and a preparation method thereof, the inert micro-powder concrete comprises the following components in parts by mass: 100-120 parts of cement, 20-40 parts of inert micro-powder, 0-20 parts of silica fume, 125-160 parts of fine aggregate, 20-27 parts of water and 3-7 parts of a water reducing agent, the inert micro-powder is hard mother rock powder with SiO2 content of not less than 65% and Al2O3 content of 0.5-15%, or stone powder or tailing powder of machine-made sandstone produced by hard mother rock; and the specific surface area is 2000-10000 m <2>/kg. The preparation method comprises the following steps: uniformly mixing and stirring the cement, the inert micro powder and the silica fume, adding the fine aggregate, uniformly stirring, adding the water and the water reducing agent, uniformly stirring, molding, and curing. The inert micro-powder concrete is ultra-high-performance concrete, is good in fluidity and rheological property, has strength meeting national standard requirements, is excellent in comprehensive performance, meets actual scene application requirements, and is low in cost and easy to industrially popularize.
本发明公开一种惰性微末混凝土及其制备方法，按质量份数计，包括以下组分：水泥100～120份，惰性微末20～40份，硅灰0～20份，细集料125～160份，水20～27份，减水剂3～7份，其中：惰性微末为SiO2含量不低于65％，Al2O3含量为0.5％～15％的硬质母岩粉，或者硬质母岩生产机制砂石的石粉或尾矿粉；比表面积为2000‑10000m2/kg。先将水泥、惰性微末、硅灰混合搅拌均匀，然后加入细集料搅拌均匀，再加入水和减水剂搅拌均匀，成型后养护即可。该惰性微末混凝土为超高性能混凝土，流动性和流变性好，强度符合国标要求，综合性能优异，符合实际场景应用需求，且成本低廉，易于工业化推广。
Inert micro-powder concrete and preparation method thereof
一种惰性微末混凝土及其制备方法
SHEN WEIGUO (author) / WU JIALE (author) / XIONG XING (author) / ZHANG BINGLIU (author) / ZHAO DEQIANG (author) / ZHANG ZHENG (author) / LI ZHITANG (author) / XU WEI (author)
2021-07-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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